Storm Mode: Illinois

0 warnings total · 0 tornado warnings · 0 alerts including watches and advisories

Current alert feed · checked 17:35Z

Warnings in area

0 of 0 alerts

No active alerts reported by the current feed in this monitoring area.

Watched places

Places saved on this device appear here with scripting enabled.

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Map

NWS’s polygons as issued, or the zones a zone-issued alert names; SPC’s watches by their counties. Checked 17:35Z. Data: NOAA/NWS, NOAA/SPC.

Agency warning geometry · no observed imagery displayed

North ↑

Interactive imagery loads separately. Missing radar does not remove warnings or imply clear weather.

Alert outlines: NOAA/NWS; cell points/observed segments: IEM/NEXRAD. A warning polygon is not a tornado footprint.

Lightning activity — GOES GLM

Total lightning, including in-cloud activity. Not ground-strike locations or a safe-to-go-outside signal.

Public event region Aggregation interval Show density on map

Cached lightning observations have not loaded. An empty map is not zero lightning.

Cached lightning source details and text readings

Snow analysis — NOHRSC

Source-rendered snow depth and snow water equivalent for the lower 48. History changes this snow picture only; warnings and radar keep their own clocks.

Snow field Retained picture Show snow on the map

Stored snow depth · footprint valid 2026-10-18 09:00:00 UTC, picture retrieved 2026-10-18 17:08:06.654 UTC.

No NOHRSC picture displayed on the interactive map.

0 - 0.39 in
0.39 - 2.0 in
2.0 - 3.9 in
3.9 - 9.8 in
9.8 - 20 in
20 - 39 in
39 - 59 in
59 - 98 in
98 - 197 in
197 - 295 in
295 - 394 in
394 - 787 in

NOHRSC snow analysis for the lower 48; see the adjacent source legend and time qualification — NOAA/NWS/NOHRSC’s original picture and legend. No station or address value is inferred.

NOHRSC footprint times are metadata; pixel analysis time is not independently verified. Snow-depth pixels have previously differed from the footprint time. This is modeled/assimilated snow analysis, not a measurement at a place. Unshaded and no-data areas do not establish zero snow.

Snow pictures, retained history and source provenance

Change time or forecast product

Replay uses retained source bytes. Recording begins with activation; missing history is not clear weather.

Live sources keep independent clocks.

Replay coverage and interpretation

Rolling target: 24 hours; cells: six hours. Radar: NOAA MRMS national overview, 8-minute tolerance. Satellite: original GOES GeoColor day/night picture, hourly sampling, 75-minute tolerance. No interpolation or latest-image fallback. Warning and source checks retain their own clocks. “Recorded by” is collector acquisition evidence, not exact browser publication history.

Current GLM density, velocity and specialist layers are hidden during replay. Snow uses retained footprint metadata with unverified pixel time. Forecast uses one pinned issuance/run and exact valid time.

No observed replay frame displayed.

Open the complete replay reader (works without scripting or WebGL)

Radar-derived cells (0) · current

Collector checked 17:35Z; feed generated 17:35Z. Zero cells does not establish coverage or clear weather. Observations from different radars are not merged.

Station and river observations (44)

Surface source current; observed water-level source current. Each reading keeps its own time. Map markers show at most 500 stations and 500 gauges; the complete source directory is paginated.

Circle: surface station; square: water-level gauge. Filled: current reading and source; hollow: stale, unconfirmed or missing observation. Marker color is not a hazard category. Enable “Stations and gauges” in Layers to inspect them on the map.

K06C · K06C · current · 17:15Z
K1H2 · K1H2 · current · 17:15Z
K3LF · K3LF · current · 17:15Z
KAJG · KAJG · current · 17:15Z
KALN · KALN · current · 16:50Z
KARR · KARR · current · 16:52Z
KBMI · KBMI · current · 16:56Z
KC75 · KC75 · current · 17:15Z
KCIR · KCIR · current · 17:15Z
KDEC · KDEC · current · 16:54Z
KDKB · KDKB · current · 17:15Z
KDPA · KDPA · current · 16:52Z
KENL · KENL · current · 17:15Z
KFEP · KFEP · current · 17:15Z
KFOA · KFOA · current · 17:15Z
KFWC · KFWC · current · 17:15Z
KGBG · KGBG · current · 17:15Z
KHSB · KHSB · current · 17:15Z
KI63 · KI63 · current · 17:15Z
KIGQ · KIGQ · current · 17:15Z
KIJX · KIJX · current · 17:15Z
KIKK · KIKK · current · 17:15Z
KJOT · KJOT · current · 17:15Z
KLOT · KLOT · current · 16:45Z
KM30 · KM30 · current · 17:15Z
KMDH · KMDH · current · 16:52Z
KMDW · KMDW · current · 16:53Z
KMLI · KMLI · current · 16:52Z
KMQB · KMQB · current · 17:15Z
KMWA · KMWA · current · 16:45Z
KOLY · KOLY · current · 17:10Z
KPIA · KPIA · current · 16:54Z
KPNT · KPNT · current · 16:55Z
KPPQ · KPPQ · current · 17:15Z
KPRG · KPRG · current · 17:15Z
KRPJ · KRPJ · current · 17:15Z
KRSV · KRSV · current · 17:15Z
KSAR · KSAR · current · 17:15Z
KSFY · KSFY · current · 17:15Z
KSLO · KSLO · current · 17:15Z
KSPI · KSPI · current · 16:52Z
KTIP · KTIP · current · 17:15Z
KUGN · KUGN · current · 16:51Z
KVYS · KVYS · current · 17:15Z

Showing 44 of 44 listed sources. All surface stations and retained trends · All supported gauges and forecasts

Selected details

Surface station KFEP

current · Observed 2026-10-18 17:15:00 UTC · wind 17 kt, gust 21 kt · temperature 15.6 °C.

Station KFEP · -89.581, 42.2475 (longitude, latitude).

Source checked 2026-10-18 17:30:05.012Z · current.

Station observations, not an address forecast or cyclone maximum wind. Maintenance-flagged, old and implausible reports are excluded by the existing parser; this is not independent NWS quality control.

Retained observations: 71; target 24 hours, at most 96 reports per station. Recording began 2026-10-17 06:15:07.108Z; oldest available reading 2026-10-17 17:55:00 UTC.

Observed sustained wind · 71 retained observations; 0 discontinuities. Lines join reported values only; missing intervals are not interpolated.

Temperature, dew point and pressure trends

Observed temperature · 71 retained observations; 0 discontinuities. Lines join reported values only; missing intervals are not interpolated.

Observed dew point · 71 retained observations; 0 discontinuities. Lines join reported values only; missing intervals are not interpolated.

Observed sea-level pressure: no readable observations.

Observed reports as a table (71)

Observed (UTC)	Wind / gust (kt)	From (° true)	Temperature / dew point (°C)	Pressure (mb)	Visibility (mi)
2026-10-17 17:55:00 UTC	8 / Not reported	250	12.8 / -5.1	Not reported	10 or more
2026-10-17 18:15:00 UTC	6 / Not reported	220	13.1 / -4.4	Not reported	10 or more
2026-10-17 18:35:00 UTC	6 / Not reported	240	13.7 / -3.6	Not reported	10 or more
2026-10-17 18:55:00 UTC	11 / Not reported	240	13.6 / -4.3	Not reported	10 or more
2026-10-17 19:15:00 UTC	8 / Not reported	230	13.8 / -4.6	Not reported	10 or more
2026-10-17 19:35:00 UTC	9 / 16	250	14 / -3.7	Not reported	10 or more
2026-10-17 19:55:00 UTC	9 / Not reported	230	14.1 / -4.2	Not reported	10 or more
2026-10-17 20:15:00 UTC	9 / Not reported	230	14.2 / -3.7	Not reported	10 or more
2026-10-17 20:35:00 UTC	8 / 16	220	14 / -4	Not reported	10 or more
2026-10-17 20:55:00 UTC	9 / Not reported	210	14.1 / -3.8	Not reported	10 or more
2026-10-17 21:15:00 UTC	10 / Not reported	230	13.8 / -4.7	Not reported	10 or more
2026-10-17 21:35:00 UTC	9 / Not reported	230	13.6 / -3.1	Not reported	10 or more
2026-10-17 21:55:00 UTC	11 / 14	230	13.3 / -3.4	Not reported	10 or more
2026-10-17 22:15:00 UTC	9 / Not reported	230	12.7 / -3.5	Not reported	10 or more
2026-10-17 22:35:00 UTC	9 / Not reported	210	12.1 / -2.9	Not reported	10 or more
2026-10-17 22:55:00 UTC	6 / Not reported	210	11.2 / -3	Not reported	10 or more
2026-10-17 23:15:00 UTC	6 / Not reported	220	9.3 / -1.8	Not reported	10 or more
2026-10-17 23:35:00 UTC	5 / Not reported	210	7.7 / -0.9	Not reported	10 or more
2026-10-17 23:55:00 UTC	5 / Not reported	210	7.1 / -0.9	Not reported	10 or more
2026-10-18 00:15:00 UTC	4 / Not reported	210	6.5 / -0.5	Not reported	10 or more
2026-10-18 00:35:00 UTC	5 / Not reported	200	5 / 0	Not reported	10 or more
2026-10-18 00:55:00 UTC	5 / Not reported	190	4.7 / 0	Not reported	10 or more
2026-10-18 01:15:00 UTC	5 / Not reported	190	4.8 / 0	Not reported	10 or more
2026-10-18 01:35:00 UTC	5 / Not reported	190	4.3 / 0	Not reported	10 or more
2026-10-18 01:55:00 UTC	7 / Not reported	190	5 / 0	Not reported	10 or more
2026-10-18 02:15:00 UTC	6 / Not reported	190	4.5 / 0	Not reported	10 or more
2026-10-18 02:35:00 UTC	6 / Not reported	190	5.9 / -0.5	Not reported	10 or more
2026-10-18 02:55:00 UTC	7 / Not reported	200	5.7 / -0.3	Not reported	10 or more
2026-10-18 03:15:00 UTC	6 / Not reported	180	3.9 / 0	Not reported	10 or more
2026-10-18 03:35:00 UTC	6 / Not reported	200	3.5 / 0.1	Not reported	10 or more
2026-10-18 03:55:00 UTC	6 / Not reported	190	3.9 / 0	Not reported	10 or more
2026-10-18 04:15:00 UTC	8 / Not reported	190	3.9 / 0.5	Not reported	10 or more
2026-10-18 04:35:00 UTC	7 / Not reported	180	4.9 / 0.6	Not reported	10 or more
2026-10-18 04:55:00 UTC	6 / Not reported	190	4.2 / 1	Not reported	10 or more
2026-10-18 05:15:00 UTC	10 / Not reported	200	6.2 / 1.2	Not reported	10 or more
2026-10-18 05:35:00 UTC	10 / Not reported	200	6.3 / 1.2	Not reported	10 or more
2026-10-18 05:55:00 UTC	10 / Not reported	200	6.3 / 1.2	Not reported	10 or more
2026-10-18 06:15:00 UTC	6 / Not reported	190	5.8 / 1.2	Not reported	10 or more
2026-10-18 06:35:00 UTC	7 / Not reported	190	5.1 / 1.4	Not reported	10 or more
2026-10-18 06:55:00 UTC	8 / Not reported	190	5.5 / 1.5	Not reported	10 or more
2026-10-18 07:15:00 UTC	8 / Not reported	200	5.4 / 1.5	Not reported	10 or more
2026-10-18 07:35:00 UTC	7 / Not reported	190	5.1 / 1.6	Not reported	10 or more
2026-10-18 07:55:00 UTC	6 / Not reported	190	4.7 / 1.6	Not reported	10 or more
2026-10-18 08:15:00 UTC	6 / Not reported	200	4.3 / 1.7	Not reported	10 or more
2026-10-18 08:35:00 UTC	8 / Not reported	200	5.1 / 1.8	Not reported	10 or more
2026-10-18 08:55:00 UTC	8 / Not reported	200	5.5 / 1.6	Not reported	10 or more
2026-10-18 09:15:00 UTC	7 / Not reported	200	5.2 / 1.8	Not reported	10 or more
2026-10-18 09:35:00 UTC	7 / Not reported	200	5.1 / 1.9	Not reported	10 or more
2026-10-18 09:55:00 UTC	7 / Not reported	200	5 / 2	Not reported	10 or more
2026-10-18 10:15:00 UTC	6 / Not reported	200	4.8 / 2	Not reported	10 or more
2026-10-18 10:35:00 UTC	8 / Not reported	200	4.9 / 2.2	Not reported	10 or more
2026-10-18 10:55:00 UTC	9 / Not reported	200	5.1 / 2.3	Not reported	10 or more
2026-10-18 11:15:00 UTC	10 / 15	210	5.4 / 2.3	Not reported	10 or more
2026-10-18 11:35:00 UTC	9 / Not reported	200	5.1 / 2.4	Not reported	10 or more
2026-10-18 11:55:00 UTC	10 / Not reported	200	5.2 / 2.5	Not reported	10 or more
2026-10-18 12:15:00 UTC	9 / Not reported	200	5 / 2.5	Not reported	10 or more
2026-10-18 12:35:00 UTC	9 / Not reported	200	5.1 / 2.5	Not reported	10 or more
2026-10-18 12:55:00 UTC	8 / Not reported	200	5.9 / 2.8	Not reported	10 or more
2026-10-18 13:15:00 UTC	10 / Not reported	210	6.9 / 3.1	Not reported	10 or more
2026-10-18 13:35:00 UTC	12 / 17	210	8.1 / 3.2	Not reported	10 or more
2026-10-18 13:55:00 UTC	16 / 21	220	9.1 / 3.1	Not reported	10 or more
2026-10-18 14:15:00 UTC	16 / 24	220	9.8 / 3.4	Not reported	10 or more
2026-10-18 14:35:00 UTC	16 / 21	210	10.6 / 3.7	Not reported	10 or more
2026-10-18 14:55:00 UTC	17 / 21	210	11.1 / 3.7	Not reported	10 or more
2026-10-18 15:15:00 UTC	13 / 22	210	11.9 / 4	Not reported	10 or more
2026-10-18 15:35:00 UTC	15 / 21	220	12.7 / 4	Not reported	10 or more
2026-10-18 15:55:00 UTC	14 / 17	220	13.5 / 4.3	Not reported	10 or more
2026-10-18 16:15:00 UTC	13 / 20	230	14 / 4.2	Not reported	10 or more
2026-10-18 16:35:00 UTC	15 / 20	230	14.6 / 4	Not reported	10 or more
2026-10-18 16:55:00 UTC	14 / 19	230	15.1 / 4.1	Not reported	10 or more
2026-10-18 17:15:00 UTC	17 / 21	220	15.6 / 4.2	Not reported	10 or more

Capture times, quality and provenance

Each report keeps its observation time, first capture of this version, and the SHA-256 of the source bulk body. Corrections at the same observation time replace that point and are marked; unrelated bulk-file changes do not freshen a report.

Observed 2026-10-17 17:55:00 UTC, captured 2026-10-17 18:00:07.907Z; source body SHA-256 87f841dd0eda299799ecfa27669c14712906e9b7f2462af1e9aaebc60f5a4644.
Observed 2026-10-17 18:15:00 UTC, captured 2026-10-17 18:30:06.364Z; source body SHA-256 0d6d9bc3bb7f43638efd34fe901008409d28d015405c8aad14dafa1075c4d4b1.
Observed 2026-10-17 18:35:00 UTC, captured 2026-10-17 18:45:08.637Z; source body SHA-256 d8857538eb4d7da46d85d75840aca2483dedb9a12ab990ee530f470cf5baeaa4.
Observed 2026-10-17 18:55:00 UTC, captured 2026-10-17 19:00:06.492Z; source body SHA-256 9b92790a99ac0e8c2777442829b2a9236f72d6e831b8d9a0836ca29a9d3acbba.
Observed 2026-10-17 19:15:00 UTC, captured 2026-10-17 19:30:06.052Z; source body SHA-256 aa7b05d3d8cd0f26f9597345b6479a140b0f5645da83ed257a55986a53983c29.
Observed 2026-10-17 19:35:00 UTC, captured 2026-10-17 19:45:05.971Z; source body SHA-256 9a8252eafc94ab71bcce3ec09e0dd29ff50a2f9cb59878a245bd6cdcc185a2f6.
Observed 2026-10-17 19:55:00 UTC, captured 2026-10-17 20:00:08.337Z; source body SHA-256 b75985c438912b2da4a26e309fc2fbabef235be8a13c5848c5c5d64297850019.
Observed 2026-10-17 20:15:00 UTC, captured 2026-10-17 20:30:06.143Z; source body SHA-256 ef311b664ea18e802db618b518e916a1e3a6226db66bb0132936ea67c8e53edc.
Observed 2026-10-17 20:35:00 UTC, captured 2026-10-17 20:45:06.494Z; source body SHA-256 0a537b539c8d4f94e8b1348aba2bd8ded45ddcc4f2412f7bde6463c3fc2b987f.
Observed 2026-10-17 20:55:00 UTC, captured 2026-10-17 21:00:07.279Z; source body SHA-256 79c0cc8ae6d502baffa56263b2daf4c86fd1628f11d5a529402c527d0ff32fe1.
Observed 2026-10-17 21:15:00 UTC, captured 2026-10-17 21:30:06.193Z; source body SHA-256 6b760689fb92c2907448786a9f1cd24c46a53abec34ae808d02482425d2f20be.
Observed 2026-10-17 21:35:00 UTC, captured 2026-10-17 21:45:08.029Z; source body SHA-256 db20397de7bdb6dfebf6351bdecaf5c73a0c8bb695487d415e435ccd1ae7f173.
Observed 2026-10-17 21:55:00 UTC, captured 2026-10-17 22:00:07.362Z; source body SHA-256 f1fa85855e007d5d5b85e6dbf4575f6d6bfe58fd5c9a7bb6d9e9cc636ec4c3b2.
Observed 2026-10-17 22:15:00 UTC, captured 2026-10-17 22:30:06.387Z; source body SHA-256 ee800e649e35fae1655c5e482ca1b227e0961c02593fed069f69c2209017cbce.
Observed 2026-10-17 22:35:00 UTC, captured 2026-10-17 22:45:07.760Z; source body SHA-256 51938b1186526637d24b7545f93bc3e461e7b8bf18f3132a138ba4d2be8ed037.
Observed 2026-10-17 22:55:00 UTC, captured 2026-10-17 23:00:07.092Z; source body SHA-256 2ee1214ad66de98865565d92f21f7f5094d6b2e4ef4f09839341a5e6cd89b61b.
Observed 2026-10-17 23:15:00 UTC, captured 2026-10-17 23:30:06.919Z; source body SHA-256 0810dfeebf9b707b97dadc235e485226db4bcabaca108a8bb7ae809aa4923555.
Observed 2026-10-17 23:35:00 UTC, captured 2026-10-17 23:45:07.989Z; source body SHA-256 7d94b1744f678c4004984beceb9339123acb31a327423c214ece3a85d74f5b57.
Observed 2026-10-17 23:55:00 UTC, captured 2026-10-18 00:00:09.347Z; source body SHA-256 fe50c177f37463edb2970e7df309ca8243c740fe7f3ba6344704878ab6922ee2.
Observed 2026-10-18 00:15:00 UTC, captured 2026-10-18 00:30:06.852Z; source body SHA-256 8e3fb2d104d62ee584c29d18a0e33a08276c0c1b45eec979cb7f087bdef2f712.
Observed 2026-10-18 00:35:00 UTC, captured 2026-10-18 00:45:10.479Z; source body SHA-256 b34d5cb7d1e91893d539f82e3b7c1bcb0803285010e7b33858b258866d0d8a86.
Observed 2026-10-18 00:55:00 UTC, captured 2026-10-18 01:00:10.019Z; source body SHA-256 949eb463d93270208adccd66994771bf859674b804d78a93f2b1e78571af9b73.
Observed 2026-10-18 01:15:00 UTC, captured 2026-10-18 01:30:08.633Z; source body SHA-256 848e769c04c496475a4a56da164c43dc2da3091dec76864a121c5df6639d5e1a.
Observed 2026-10-18 01:35:00 UTC, captured 2026-10-18 01:45:08.112Z; source body SHA-256 13cad0e15a9b698bf0b792427bc82dd8fc2190754fc0585e8c712116a178328a.
Observed 2026-10-18 01:55:00 UTC, captured 2026-10-18 02:00:07.747Z; source body SHA-256 2a808d30ef24af292625f66ac29ed87d3497f0029e7978811a5214db4d4e391c.
Observed 2026-10-18 02:15:00 UTC, captured 2026-10-18 02:30:10.380Z; source body SHA-256 15a6245beadfd0a8ce6f77aaf2ff42b204b4a2e411aaa89ef6925de72a6b13f9.
Observed 2026-10-18 02:35:00 UTC, captured 2026-10-18 02:45:10.655Z; source body SHA-256 f7c5501ef4bfeeb31f4ebf98fffb35a41d8f1ea4c93568cacb717917c0a2b2c2.
Observed 2026-10-18 02:55:00 UTC, captured 2026-10-18 03:00:08.091Z; source body SHA-256 1ff4ba07d334ddc5e777bc047fb0a9a13be27865eed8a1596ab4f40757641175.
Observed 2026-10-18 03:15:00 UTC, captured 2026-10-18 03:30:08.591Z; source body SHA-256 5672bdaa00d8e7c67de8856281c396b4883e06cda834c224faa3a626ff6d1bf9.
Observed 2026-10-18 03:35:00 UTC, captured 2026-10-18 03:45:09.489Z; source body SHA-256 ff30b281581e6086665a9b0170982c399149dc2307f678d1c04532064fc0aa5d.
Observed 2026-10-18 03:55:00 UTC, captured 2026-10-18 04:00:09.699Z; source body SHA-256 8e92b49a3b0987ff40c99aaaa9dbae3470c3cdf7475dec143172378b951fb9c9.
Observed 2026-10-18 04:15:00 UTC, captured 2026-10-18 04:30:08.115Z; source body SHA-256 b945d1dd8082b8fdac9fb06097591ce9e84170b10dcdd2e4fdd962f2b9d6fbb7.
Observed 2026-10-18 04:35:00 UTC, captured 2026-10-18 04:45:08.397Z; source body SHA-256 1981ebf0c9644e8e79c2b29009ee99216868277aa873dc9b808b83c662479d81.
Observed 2026-10-18 04:55:00 UTC, captured 2026-10-18 05:00:07.387Z; source body SHA-256 d0747946a85e0b6149bd4061e0c1af798f590d9eac7088d421db1613ed7afb6e.
Observed 2026-10-18 05:15:00 UTC, captured 2026-10-18 05:30:07.030Z; source body SHA-256 846c18882078fc94390c507105ede603df0a14abac3dfdc9e7f73c6b87a50126.
Observed 2026-10-18 05:35:00 UTC, captured 2026-10-18 05:45:07.433Z; source body SHA-256 0768cb322d2c5bf6958ddb7ce2a53d243bd969b5fea1047d24b71a6a5b41a886.
Observed 2026-10-18 05:55:00 UTC, captured 2026-10-18 06:00:07.780Z; source body SHA-256 516488ab99336824be748099d9095cce133bd39e49a9ebce7ac31e8ca5594345.
Observed 2026-10-18 06:15:00 UTC, captured 2026-10-18 06:30:07.583Z; source body SHA-256 9ab6462e67c4eb5bc9bba4861248e2cbbd9c65288df1942a8f6764fe2c578731.
Observed 2026-10-18 06:35:00 UTC, captured 2026-10-18 06:45:08.757Z; source body SHA-256 d4711d6703b86d9ea514fec4b95bcb3555271ef53e955aeb3ccf01ed7e9bb620.
Observed 2026-10-18 06:55:00 UTC, captured 2026-10-18 07:00:07.060Z; source body SHA-256 cef387356b01a216d569fa5c4ef4911e52a5f5bb19d30034c5f3867ad0b3f6c5.
Observed 2026-10-18 07:15:00 UTC, captured 2026-10-18 07:30:06.796Z; source body SHA-256 74b102d64c1c868841354fbe7a693afba78dbac9ebb7f03d8570e756b2c2130f.
Observed 2026-10-18 07:35:00 UTC, captured 2026-10-18 07:45:08.639Z; source body SHA-256 9a7c7093b2467d1caafe5fbf37862b14188b33d6d26d7dd98ffea259aca6468d.
Observed 2026-10-18 07:55:00 UTC, captured 2026-10-18 08:00:11.468Z; source body SHA-256 53a01ad60670349facf980ea22602bd1fb21ffca3c40d501342bfb23f8e22c0b.
Observed 2026-10-18 08:15:00 UTC, captured 2026-10-18 08:30:07.963Z; source body SHA-256 abda48cfec1b2ae69e44a795568c94dd13b85c9cda6ffbd700d6cc1ad8e661af.
Observed 2026-10-18 08:35:00 UTC, captured 2026-10-18 08:45:08.723Z; source body SHA-256 b94480e0282948857cb50e32abb0929b9c8b46e37658fe5c106712311ab0bc33.
Observed 2026-10-18 08:55:00 UTC, captured 2026-10-18 09:00:09.520Z; source body SHA-256 8ad9748657ec506ad6f6e8aeac27fa8611b3416e28598e978a06c642e3ba8df5.
Observed 2026-10-18 09:15:00 UTC, captured 2026-10-18 09:30:07.695Z; source body SHA-256 a58900ae1657c840a58570bc15d806cba8e5821b7206d1f20bbfe60247d2272e.
Observed 2026-10-18 09:35:00 UTC, captured 2026-10-18 09:45:08.038Z; source body SHA-256 b50442be3830d60c1e5a263821d1604a46897ac5c06cc2f0323cc6c45b1d2753.
Observed 2026-10-18 09:55:00 UTC, captured 2026-10-18 10:00:08.135Z; source body SHA-256 7088f7a20b608392c60688c0c6cc24bb874f518a9d855a8f279a1656aa963b5f.
Observed 2026-10-18 10:15:00 UTC, captured 2026-10-18 10:30:06.119Z; source body SHA-256 c09507d8a0d7bc86e2bab5fe708228dc04f4393b02bfa72428750283948a691a.
Observed 2026-10-18 10:35:00 UTC, captured 2026-10-18 10:45:07.183Z; source body SHA-256 d1ce5acb1648d1238f41210e99ee39596d1e732c016108b03ef139fa9211cf42.
Observed 2026-10-18 10:55:00 UTC, captured 2026-10-18 11:00:09.217Z; source body SHA-256 4c9aeddeccab4a18ef736d7fde43bbf68e646f4e3dd3672a819a2d3d41e31ffb.
Observed 2026-10-18 11:15:00 UTC, captured 2026-10-18 11:30:06.515Z; source body SHA-256 552074735cbcbafca362f26045ca6aeccc9a96463d42216ab99304694b1d60ed.
Observed 2026-10-18 11:35:00 UTC, captured 2026-10-18 11:45:07.985Z; source body SHA-256 67463000a7ff204e4f09e3b692ebe0af1163f9e0efbac2b0e8edb5f990f8e3ae.
Observed 2026-10-18 11:55:00 UTC, captured 2026-10-18 12:00:08.069Z; source body SHA-256 99d8a01a4181fd6dc5a6f38379f01ddc13eb1176afbc54835f8b9e2d8864e444.
Observed 2026-10-18 12:15:00 UTC, captured 2026-10-18 12:30:06.668Z; source body SHA-256 157f3c472fc25c208b77689f1eed72bddcd8a964153fd5b23331c60e4784f99e.
Observed 2026-10-18 12:35:00 UTC, captured 2026-10-18 12:45:10.349Z; source body SHA-256 f142e253b2e9708977945035b70756d4e9ced9de7ce9eea3b94bc3315f3c9f3d.
Observed 2026-10-18 12:55:00 UTC, captured 2026-10-18 13:00:08.827Z; source body SHA-256 099a919970c81c196850e485719d2befbfd218b45455920c630e4665158be4f6.
Observed 2026-10-18 13:15:00 UTC, captured 2026-10-18 13:30:07.253Z; source body SHA-256 2c9ed8fd488b2c279802f09a5170ce58e362a4e9a224ae56fcee8ff538c1f47d.
Observed 2026-10-18 13:35:00 UTC, captured 2026-10-18 13:45:07.416Z; source body SHA-256 db88c1e48f0a6d8b4540fa69ce59dbf7c55fe2cb73046dbd01eaeb7372dff47f.
Observed 2026-10-18 13:55:00 UTC, captured 2026-10-18 14:00:06.781Z; source body SHA-256 d5bb4158d51e4be8ae455671d404663bf3c089899145baea8f175a4f02ee691b.
Observed 2026-10-18 14:15:00 UTC, captured 2026-10-18 14:30:11.609Z; source body SHA-256 7a7e887445d7254fd32e7f8b4634bdd81cd93907be265a68b030ac70136cd9af.
Observed 2026-10-18 14:35:00 UTC, captured 2026-10-18 14:45:09.166Z; source body SHA-256 28ab5a01ebb49325ab4a248a7e19a77cdb556c7029aed1d23ccc57c9d348d69f.
Observed 2026-10-18 14:55:00 UTC, captured 2026-10-18 15:00:07.750Z; source body SHA-256 fb3f3094c11b10dd11208847ba057d3a914f9c474065557688b031827858eed4.
Observed 2026-10-18 15:15:00 UTC, captured 2026-10-18 15:30:05.816Z; source body SHA-256 ca1079f0b52c752d972c804bb1eaac3d3403802551e7be1878cda81208332ece.
Observed 2026-10-18 15:35:00 UTC, captured 2026-10-18 15:45:07.850Z; source body SHA-256 cdcafb7cc5748c2e3091575e3a5fbf7196f37890acf2b2ba0a454659d5e53a4e.
Observed 2026-10-18 15:55:00 UTC, captured 2026-10-18 16:00:07.010Z; source body SHA-256 1a64a07f010d8deb579f76e936259499ecd9299f0a3027594b291930b1b61c4d.
Observed 2026-10-18 16:15:00 UTC, captured 2026-10-18 16:30:06.518Z; source body SHA-256 9bcdb526eb278d53447ad49f836a4840190afc933c3fb2bf4aba2dca50f759d5.
Observed 2026-10-18 16:35:00 UTC, captured 2026-10-18 16:45:08.565Z; source body SHA-256 318997703f4116613adcd89b46ba0f2fe1a5417749453f7700d3984bdd9280f6.
Observed 2026-10-18 16:55:00 UTC, captured 2026-10-18 17:00:06.399Z; source body SHA-256 c006e676533fb42ac5e8536e9cb2b841c874883c562d965a13f7c70c3f3b5cfc.
Observed 2026-10-18 17:15:00 UTC, captured 2026-10-18 17:30:06.247Z; source body SHA-256 457b30bce92738d9439cdd493273069e7e4cc6643a013935a5d1913aec4276b6.

Values use the decoded station report. Null means not reported, never zero. Gust is kept separate from sustained wind.

Observation source page · Cached readings as JSON · Official source

Recent source changes

office-hwo · source-revision · 17:35ZRecorded 2026-10-18T17:35:05.400Z
gauge-details · source-revision · 17:35ZRecorded 2026-10-18T17:35:04.944Z
gauges-observed · source-revision · 17:35ZRecorded 2026-10-18T17:35:04.944Z
gauges-forecast · source-revision · 17:35ZRecorded 2026-10-18T17:35:04.944Z
office-afd · source-revision · 17:30ZRecorded 2026-10-18T17:30:07.417Z
metars · source-revision · 17:30ZRecorded 2026-10-18T17:30:06.247Z
hrrr · source-revision · 16:00ZRecorded 2026-10-18T17:30:06.247Z
office-afd · source-revision · 17:25ZRecorded 2026-10-18T17:25:07.223Z

Recording coverage and limits

warnings: retained from 2026-10-17T17:35:46.699Z through 2026-10-18T17:35:04.573Z
outlooks: retained from 2026-10-17T17:35:46.699Z through 2026-10-18T17:35:05.400Z
hydro: retained from 2026-10-17T17:35:46.699Z through 2026-10-18T17:35:04.944Z
analysis: retained from 2026-10-17T17:35:46.699Z through 2026-10-18T17:30:06.247Z
winter: retained from 2026-10-17T17:35:46.699Z through 2026-10-18T17:23:04.980Z

Source-message history is not recorded imagery replay. Recorded radar/satellite imagery is not available in this view.

Checks every minute; each layer keeps its own time.

Analysis and model context

Current cached context, independently dated. Regional reference: IL; a reference within a wider monitoring area does not replace the complete warning geography. This section remains separate from the historical replay cursor and official cyclone forecast. Use Forecast to pin a retained model package.

Surface: what stations observe and WPC analyses

Illinois: one station shown in each small area of the map, so it stays legible; the table lists every station in a state.

On the map

Observed temperature, °F, above-left of the station
Observed dew point, °F, below-left
Observed temperature and dew point are left off the map on a screen this narrow: the table below lists every station’s.
Observed wind: the staff points to where it blows from; a full barb is 10 kt, a half 5, a pennant 50; a ring is calm
Analysis cold front
Analysis warm front
Analysis stationary front
Analysis occluded front
Analysis dry line
Analysis trough
Analysis high and low pressure centres, with their pressure in millibars

WPC’s bulletin does not say which side of a front its symbols go, so this map draws no triangles or half-circles; each front is named on the map and in the list.

Observed 2,102 stations, each at its own time, most between 16:50Z and 17:26Z. Airport and other automated stations’ reports (METARs), as AviationWeather.gov decodes them. Left out: 614 reports flagged by the station for maintenance and no reports that cannot be right; no other quality control is applied here.

Analysis WPC’s surface analysis valid 15:00Z, issued 15:00Z. A forecaster’s analysis of the fronts and pressure centres at that hour, every three hours.

WPC analyses no front across Illinois; troughs are drawn on the map.

Every station in Illinois (44)

44 stations in Illinois, by identifier
Station	Observed	Temperature	Dew point	Wind	Pressure	Visibility	Weather
K06C	17:15Z	58 °F	37 °F	220° 11 kt, gusts 16 kt	—	10+ mi	—
K1H2	17:15Z	59 °F	34 °F	160° 6 kt	—	10+ mi	—
K3LF	17:15Z	58 °F	36 °F	180° 9 kt, gusts 14 kt	—	10+ mi	—
KAJG	17:15Z	61 °F	39 °F	150° 4 kt	—	10+ mi	—
KALN	16:50Z	59 °F	39 °F	180° 8 kt	—	10+ mi	—
KARR	16:52Z	57 °F	36 °F	200° 12 kt, gusts 21 kt	1031.2 mb	10+ mi	—
KBMI	16:56Z	59 °F	37 °F	220° 12 kt	1032.2 mb	10+ mi	—
KC75	17:15Z	58 °F	36 °F	220° 10 kt, gusts 15 kt	—	10+ mi	—
KCIR	17:15Z	63 °F	40 °F	calm	—	10+ mi	—
KDEC	16:54Z	58 °F	38 °F	180° 10 kt	1032.7 mb	10+ mi	—
KDKB	17:15Z	58 °F	39 °F	200° 14 kt, gusts 18 kt	—	10+ mi	—
KDPA	16:52Z	58 °F	37 °F	220° 16 kt, gusts 23 kt	1031.4 mb	10+ mi	—
KENL	17:15Z	61 °F	37 °F	150° 8 kt	—	10+ mi	—
KFEP	17:15Z	60 °F	40 °F	220° 17 kt, gusts 21 kt	—	10+ mi	—
KFOA	17:15Z	61 °F	39 °F	170° 7 kt	—	10+ mi	—
KFWC	17:15Z	59 °F	36 °F	150° 5 kt	—	10+ mi	—
KGBG	17:15Z	60 °F	42 °F	210° 12 kt, gusts 17 kt	—	10+ mi	—
KHSB	17:15Z	62 °F	41 °F	160° 6 kt	—	10+ mi	—
KI63	17:15Z	61 °F	38 °F	170° 11 kt, gusts 14 kt	—	10+ mi	—
KIGQ	17:15Z	58 °F	34 °F	210° 15 kt, gusts 20 kt	—	10+ mi	—
KIJX	17:15Z	60 °F	37 °F	160° 9 kt	—	10+ mi	—
KIKK	17:15Z	60 °F	33 °F	210° 11 kt, gusts 14 kt	—	10+ mi	—
KJOT	17:15Z	60 °F	37 °F	200° 10 kt, gusts 14 kt	—	10+ mi	—
KLOT	16:45Z	57 °F	36 °F	220° 12 kt, gusts 18 kt	—	10+ mi	—
KM30	17:15Z	62 °F	36 °F	calm	—	10+ mi	—
KMDH	16:52Z	60 °F	38 °F	170° 8 kt	1032.5 mb	10+ mi	—
KMDW	16:53Z	58 °F	35 °F	220° 12 kt	1031.3 mb	10+ mi	—
KMLI	16:52Z	61 °F	39 °F	210° 14 kt, gusts 21 kt	1029.3 mb	10+ mi	—
KMQB	17:15Z	62 °F	39 °F	210° 12 kt, gusts 17 kt	—	10+ mi	—
KMWA	16:45Z	61 °F	37 °F	170° 9 kt	—	10+ mi	—
KOLY	17:10Z	61 °F	38 °F	160° 8 kt	—	10+ mi	—
KPIA	16:54Z	58 °F	37 °F	190° 14 kt	1031.3 mb	10+ mi	—
KPNT	16:55Z	59 °F	35 °F	210° 10 kt, gusts 19 kt	—	10+ mi	—
KPPQ	17:15Z	61 °F	38 °F	190° 6 kt	—	10+ mi	—
KPRG	17:15Z	60 °F	36 °F	160° 9 kt	—	10+ mi	—
KRPJ	17:15Z	60 °F	38 °F	200° 12 kt, gusts 15 kt	—	10+ mi	—
KRSV	17:15Z	59 °F	39 °F	160° 8 kt	—	6 mi	`HZ`
KSAR	17:15Z	60 °F	36 °F	200° 5 kt	—	10+ mi	—
KSFY	17:15Z	61 °F	41 °F	190° 12 kt, gusts 17 kt	—	10+ mi	—
KSLO	17:15Z	61 °F	40 °F	not given	—	10+ mi	—
KSPI	16:52Z	60 °F	36 °F	190° 10 kt	1032.1 mb	10+ mi	—
KTIP	17:15Z	59 °F	37 °F	230° 11 kt	—	10+ mi	—
KUGN	16:51Z	58 °F	38 °F	220° 14 kt	1029.9 mb	10+ mi	—
KVYS	17:15Z	—	—	220° 12 kt, gusts 17 kt	—	10+ mi	—

Surface observations checked 17:30Z · Data: NOAA/NWS Aviation Weather Center

WPC surface analysis checked 17:30Z · Data: NOAA/WPC

Spotlight: SPC Day 1 outlook

1 of 15

SPC Day 1 outlook

General Thunderstorms Risk

SPC’s Day 1 categorical outlook, valid 16:30Z to 19 Oct 12:00Z, issued 16:14Z. SPC’s categories, as drawn. Data: NOAA/SPC.

Watches

No tornado or severe thunderstorm watch in force in this area.

SPC’s watches, by number, matched by the counties they list. Data: NOAA/SPC.

Mesoscale discussions

No mesoscale discussion reaches this area.

SPC’s mesoscale discussions whose outline reaches the area. Data: NOAA/SPC.

Storm ingredients

SPC’s hourly mesoanalysis, observed soundings and model guidance for the area, on the Analysis tab with its own clocks.

Open the Analysis tab

Drawn by the Analysis tab’s own renderer. Data: NOAA/SPC, NOAA/NCEP.

Flash-flood risk, Day 1

Marginal

WPC’s excessive rainfall outlook, 16:00Z to 19 Oct 12:00Z, issued 15:51Z: a chance of flash flooding, in four categories. Data: NOAA/WPC.

River gauges in flood

No river, coastal or lake gauge in this area is in flood, observed or forecast.

NWS’s gauges at flood stage or above in the area, worst first, each with its forecast hydrograph on Rain & rivers. Data: NOAA/NWPS.

Rain expected and rain that fell

WPC’s rain forecast and MRMS’s radar estimate of the rain that fell, on the Briefing’s map for the area.

Open Rain & rivers

Data: NOAA/WPC, NOAA/NSSL MRMS.

Winter Storm Severity Index

WPC: “WSSI does not depict official warnings and should always be used in context with official NWS forecasts and warnings.”

Winter Weather Area
Minor Impacts
Moderate Impacts
Major Impacts
Extreme Impacts

Highest in this area, by day and by cause

Day 1: nothing drawn
Day 2: nothing drawn
Day 3: nothing drawn
Snow amount, Days 1–3: nothing drawn
Snow load, Days 1–3: nothing drawn
Ice, Days 1–3: nothing drawn
Blowing snow, Days 1–3: nothing drawn

Each day and cause on the Winter tab, with its own issue time

WPC’s WSSI, overall impact, Days 1–3, valid 14:00Z to 21 Oct 12:00Z, issued 14:15Z. WPC issues each day and cause on its own clock. Not a warning, and not a chance. Data: NOAA/NWS/WPC.

Chance of Moderate impacts or worse, Day 1

WPC: “WSSI does not depict official warnings and should always be used in context with official NWS forecasts and warnings.”

5–10% (not drawn)
10–20% (not drawn)
20–30% (not drawn)
30–40% (not drawn)
40–50% (not drawn)
50–60% (not drawn)
60–70% (not drawn)
70–80% (not drawn)
80–90% (not drawn)
90–95% (not drawn)
95% or more (not drawn)

Each level and day on the Winter tab

WPC’s WSSI-P: no chance drawn for Day 1. Data: NOAA/NWS/WPC.

Chance of at least 4 inches of snow, Day 1

WPC gives no chance of 4 inches of snow or more in this area over the next three days, so Day 1’s 4 inches is shown.

Slight: at least 10%
Moderate: at least 40%
High: at least 70%

Every day and amount on the Winter tab

WPC’s Probabilistic Winter Precipitation Forecast, 12:00Z to 19 Oct 12:00Z, issued 07:36Z. Outlines, as WPC draws them. Data: NOAA/NWS/WPC.

Winter watches, warnings and advisories

No winter or cold watch, warning or advisory in force in this area.

NWS’s winter and cold alerts in force in the area, by event as issued, each counted once, with the offices that issued them and the latest end. Data: NOAA/NWS.

Snow on the ground

NOHRSC snow depth and snow water equivalent use the source’s original pictures and legends, with qualified footprint times. Open the cached source page for availability and retained history. This wall has no snow picture to rotate; missing imagery does not mean no snow.

NOHRSC snow analysis and retained pictures

Data: NOAA/NWS/NOHRSC. Snow analysis, not a measurement at a place.

WPC’s heavy snow and icing discussion

The whole discussion

Issued 08:46Z, for 12:00Z to 21 Oct 12:00Z. WPC’s words, as written. Data: NOAA/NWS/WPC.

The tropics

NHC’s and JTWC’s storms, their official graphics and the watches and warnings for them. Storm Mode’s own tropical panels arrive with its tropical events.

Open the Tropics page

Data: NOAA/NHC, JTWC.

Radar

NOAA’s radar for the area, loaded by your browser as on the Radar page.

Open the radar

Live tiles; the radar keeps no last-good copy.

What changed, last 60 minutes

Nothing has changed in the last 60 minutes.

The products’ own words and times, and what is no longer in force since the last read. Never written by AI.

Monitoring area, legacy alert summary and selection rules

Area: Illinois (NWS states: IL)
Hazards: Every kind of warning, watch and advisory this site carries
Window: In force now, with the next days of SPC’s and WPC’s products
Made by: This address: anyone can make one, and nothing is stored. Change the area or hazards

An area you chose, not a storm’s footprint: everything here is in force in this area, never “from this storm”.

In force in this area

No warning, watch or advisory for these hazards is in force in this area.

NWS’s alerts checked 17:35Z: a successful check, so this is none in force, not “can’t tell”.

Sources

NWS warnings and SPC watches checked 17:35Z
NWS watches and advisories checked 17:35Z
SPC mesoscale discussions checked 17:35Z
SPC Day 1 outlook checked 17:35Z
WPC excessive rainfall checked 17:35Z
NWPS river gauges checked 17:35Z
WPC WSSI checked 17:23Z
WPC WSSI-P checked 17:23Z
WPC snow and ice chances checked 17:23Z
WPC heavy snow and icing discussion checked 17:23Z
Radar live tiles, no last-good copy

Not an official warning service. Warnings and watches are the National Weather Service’s, outlooks and reports the Storm Prediction Center’s and the Weather Prediction Center’s (Data: NOAA/NWS, NOAA/SPC, NOAA/WPC). When a warning is issued for you, act on it, and use weather.gov or a NOAA Weather Radio for where you are.