Flash-flood risk, Day 1
- Marginal
WPC’s excessive rainfall outlook, to , issued : a chance of flash flooding, in four categories. Data: NOAA/WPC.
CURRENT CONTEXT · 0 warnings total · 0 tornado warnings · 0 alerts including watches and advisories
Current alert feed · checked
Warnings in area
0 of 0 alertsNo active alerts reported by the current feed in this monitoring area.
Watched places
Places saved on this device appear here with scripting enabled.
Map
NWS’s polygons as issued, or the zones a zone-issued alert names; SPC’s watches by their counties. Checked . Data: NOAA/NWS, NOAA/SPC.
Agency warning geometry · no observed imagery displayed
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.
Cached lightning observations have not loaded. An empty map is not zero lightning.
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.
Stored snow depth · footprint valid 2026-10-18 06:00:00 UTC, picture retrieved 2026-10-18 12:23:04.796 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 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.
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 ; feed generated . Zero cells does not establish coverage or clear weather. Observations from different radars are not merged.
Station and river observations (96)
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.
- KAAT · KAAT · current ·
- KACV · KACV · current ·
- KAJO · KAJO · current ·
- KAPC · KAPC · current ·
- KAUN · KAUN · current ·
- KBFL · KBFL · current ·
- KBLH · KBLH · current ·
- KBUR · KBUR · current ·
- KC83 · KC83 · current ·
- KCCB · KCCB · current ·
- KCCR · KCCR · current ·
- KCEC · KCEC · current ·
- KCIC · KCIC · current ·
- KCMA · KCMA · current ·
- KCNO · KCNO · current ·
- KCPU · KCPU · current ·
- KCRQ · KCRQ · current ·
- KCVH · KCVH · current ·
- KDAG · KDAG · current ·
- KDLO · KDLO · current ·
- KDVO · KDVO · current ·
- KDWA · KDWA · current ·
- KE16 · KE16 · current ·
- KEDU · KEDU · current ·
- KEDW · KEDW · current ·
- KEED · KEED · current ·
- KF70 · KF70 · current ·
- KFHM · KFHM · current ·
- KFOT · KFOT · current ·
- KFUL · KFUL · current ·
- KGOO · KGOO · current ·
- KHAF · KHAF · current ·
- KHJO · KHJO · current ·
- KHWD · KHWD · current ·
- KIPL · KIPL · current ·
- KIZA · KIZA · current ·
- KJAQ · KJAQ · current ·
- KL08 · KL08 · current ·
- KL18 · KL18 · current ·
- KLGB · KLGB · current ·
- KLLR · KLLR · current ·
- KLPC · KLPC · current ·
- KLVK · KLVK · current ·
- KMCC · KMCC · current ·
- KMCE · KMCE · current ·
- KMHR · KMHR · current ·
- KMHS · KMHS · current ·
- KMHV · KMHV · current ·
- KMMH · KMMH · current ·
- KMOD · KMOD · current ·
- KMRY · KMRY · current ·
- KMWS · KMWS · current ·
- KMYF · KMYF · current ·
- KNJK · KNJK · current ·
- KNUQ · KNUQ · current ·
- KO05 · KO05 · current ·
- KO22 · KO22 · current ·
- KO26 · KO26 · current ·
- KO32 · KO32 · current ·
- KO54 · KO54 · current ·
- KO69 · KO69 · current ·
- KO86 · KO86 · current ·
- KOAK · KOAK · current ·
- KOAR · KOAR · current ·
- KONT · KONT · current ·
- KOVE · KOVE · current ·
- KOXR · KOXR · current ·
- KPMD · KPMD · current ·
- KPSP · KPSP · current ·
- KPVF · KPVF · current ·
- KRAL · KRAL · current ·
- KRIV · KRIV · current ·
- KRNM · KRNM · current ·
- KSAC · KSAC · current ·
- KSBA · KSBA · current ·
- KSBD · KSBD · current ·
- KSBP · KSBP · current ·
- KSEE · KSEE · current ·
- KSIY · KSIY · current ·
- KSJC · KSJC · current ·
- KSLI · KSLI · current ·
- KSNS · KSNS · current ·
- KSQL · KSQL · current ·
- KSTS · KSTS · current ·
- KSVE · KSVE · current ·
- KTCY · KTCY · current ·
- KTRK · KTRK · current ·
- KTSP · KTSP · current ·
- KTVL · KTVL · current ·
- KUKI · KUKI · current ·
- KVCB · KVCB · current ·
- KVCV · KVCV · current ·
- KVNY · KVNY · current ·
- KWJF · KWJF · current ·
- KWVI · KWVI · current ·
- MCBC1 · Marsh Creek Reservoir · current ·
Showing 96 of 96 listed sources. All surface stations and retained trends · All supported gauges and forecasts
Selected details
CloseSurface station KCIC
current · Observed 2026-10-18 12:55:00 UTC · wind 0 kt · temperature 12 °C.
Station KCIC · -121.858, 39.7987 (longitude, latitude).
Source checked 2026-10-18 13:45:06.125Z · 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: 26; target 24 hours, at most 96 reports per station. Recording began 2026-10-17 06:15:07.108Z; oldest available reading 2026-10-17 13:55:00 UTC.
Temperature, dew point and pressure trends
Observed sea-level pressure: no readable observations.
Observed reports as a table (26)
| Observed (UTC) | Wind / gust (kt) | From (° true) | Temperature / dew point (°C) | Pressure (mb) | Visibility (mi) |
|---|---|---|---|---|---|
| 2026-10-17 13:55:00 UTC | 0 / Not reported | Calm | 12 / 2 | Not reported | 4 |
| 2026-10-17 14:15:00 UTC | 0 / Not reported | Calm | 13 / 0 | Not reported | 2.5 |
| 2026-10-17 14:35:00 UTC | 0 / Not reported | Calm | 13 / 1 | Not reported | 2.5 |
| 2026-10-17 14:50:00 UTC | 0 / Not reported | Calm | 12 / 0 | Not reported | 10 or more |
| 2026-10-17 14:55:00 UTC | 0 / Not reported | Calm | 12 / 0 | Not reported | 2.5 |
| 2026-10-17 15:15:00 UTC | 0 / Not reported | Calm | 13 / 2 | Not reported | 3 |
| 2026-10-17 15:50:00 UTC | 3 / Not reported | 280 | 14 / 2 | Not reported | 10 or more |
| 2026-10-17 16:50:00 UTC | 0 / Not reported | Calm | 19 / 0 | Not reported | 10 or more |
| 2026-10-17 17:50:00 UTC | 3 / Not reported | 290 | 23 / 1 | Not reported | 10 or more |
| 2026-10-17 21:50:00 UTC | 0 / Not reported | Calm | 30 / 0 | Not reported | 10 or more |
| 2026-10-17 22:50:00 UTC | 3 / Not reported | 330 | 30 / 0 | Not reported | 10 or more |
| 2026-10-17 23:50:00 UTC | 3 / Not reported | 240 | 30 / 4 | Not reported | 10 or more |
| 2026-10-18 01:50:00 UTC | 3 / Not reported | 30 | 26 / 6 | Not reported | 10 or more |
| 2026-10-18 04:15:00 UTC | 3 / Not reported | 70 | 22 / 0 | Not reported | 10 or more |
| 2026-10-18 09:15:00 UTC | 0 / Not reported | Calm | 14 / 0 | Not reported | 10 or more |
| 2026-10-18 09:35:00 UTC | 0 / Not reported | Calm | 14 / 1 | Not reported | 10 or more |
| 2026-10-18 09:55:00 UTC | 0 / Not reported | Calm | 15 / 0 | Not reported | 10 or more |
| 2026-10-18 10:15:00 UTC | 3 / Not reported | 310 | 14 / 0 | Not reported | 10 or more |
| 2026-10-18 10:35:00 UTC | 4 / Not reported | 350 | 13 / 1 | Not reported | 10 or more |
| 2026-10-18 10:55:00 UTC | 4 / Not reported | 340 | 13 / 0 | Not reported | 10 or more |
| 2026-10-18 11:15:00 UTC | 0 / Not reported | Calm | 13 / -2 | Not reported | 10 or more |
| 2026-10-18 11:35:00 UTC | 0 / Not reported | Calm | 13 / -2 | Not reported | 10 or more |
| 2026-10-18 11:55:00 UTC | 0 / Not reported | Calm | 13 / -2 | Not reported | 10 or more |
| 2026-10-18 12:15:00 UTC | 0 / Not reported | Calm | 13 / 0 | Not reported | 10 or more |
| 2026-10-18 12:35:00 UTC | 0 / Not reported | Calm | 13 / 1 | Not reported | 10 or more |
| 2026-10-18 12:55:00 UTC | 0 / Not reported | Calm | 12 / 0 | 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 13:55:00 UTC, captured 2026-10-17 14:15:08.468Z; source body SHA-256
89c5e2da6c1df15fc284a3f38b9662d6ab7633272342363f5f2103f7f1dca9bc. - Observed 2026-10-17 14:15:00 UTC, captured 2026-10-17 14:30:10.654Z; source body SHA-256
3eb08494e0ad69902726856334e3d7b274b3b0fd97ce988463f0dd20e757de9f. - Observed 2026-10-17 14:35:00 UTC, captured 2026-10-17 14:45:08.203Z; source body SHA-256
d8f30f9f8cf3b7a47222fb2f314ac9318b3d3079009e45d8e7d36b75d32439a1. - Observed 2026-10-17 14:50:00 UTC, captured 2026-10-17 15:00:06.490Z; source body SHA-256
fd6f39df63ed66d82a0d722d3ba639a811bb9e87f6416735ea4ec817c4b69f7b. - Observed 2026-10-17 14:55:00 UTC, captured 2026-10-17 15:15:08.165Z; source body SHA-256
03e82f238e3281188a3e527cc38fc1ce4ad8af25fe75f76604b458e9da0f511c. - Observed 2026-10-17 15:15:00 UTC, captured 2026-10-17 15:30:05.805Z; source body SHA-256
04ddddc39c74dc78ca7472e6371d50741ec1ed3c05a6510175b1eadce1fc59e6. - Observed 2026-10-17 15:50:00 UTC, captured 2026-10-17 16:00:07.184Z; source body SHA-256
011c3be17b8bb37fe5f6ec9648267ed81c7e9853e6a8b98b8ad0bb065dff5968. - Observed 2026-10-17 16:50:00 UTC, captured 2026-10-17 17:00:06.696Z; source body SHA-256
b8be3a3f9dbb0f9d47f7f7d56c511352303f71121022093aee1718b59882e480. - Observed 2026-10-17 17:50:00 UTC, captured 2026-10-17 18:00:07.907Z; source body SHA-256
87f841dd0eda299799ecfa27669c14712906e9b7f2462af1e9aaebc60f5a4644. - Observed 2026-10-17 21:50:00 UTC, captured 2026-10-17 22:00:07.362Z; source body SHA-256
f1fa85855e007d5d5b85e6dbf4575f6d6bfe58fd5c9a7bb6d9e9cc636ec4c3b2. - Observed 2026-10-17 22:50:00 UTC, captured 2026-10-17 23:00:07.092Z; source body SHA-256
2ee1214ad66de98865565d92f21f7f5094d6b2e4ef4f09839341a5e6cd89b61b. - Observed 2026-10-17 23:50:00 UTC, captured 2026-10-18 00:15:08.772Z; source body SHA-256
2e4c6ad295ac837c980c59790d7a701d3f94b395e669ad24a6f5d6eeb1bc7aaa. - Observed 2026-10-18 01:50:00 UTC, captured 2026-10-18 02:00:07.747Z; source body SHA-256
2a808d30ef24af292625f66ac29ed87d3497f0029e7978811a5214db4d4e391c. - 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 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 10:15:09.947Z; source body SHA-256
bc85d9bacf7d31e5f157dbe62e697d0ba3700fa7acd1fa15eb65ca4ed5d73a13. - 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 11:15:08.982Z; source body SHA-256
bbc0c93e9e580a3c677345c6f01d103cb3017ab4d1332af648640385547d4c48. - 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 12:15:08.526Z; source body SHA-256
f3e9c0272eda75fcdb932e36b0ca4350b1be24423b5982b5fbca08c72e3b3c16. - 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 13:15:09.492Z; source body SHA-256
9f4491f8e8a3f0770801cde5e56fad9f34268e97113b28189535d2030bff72aa.
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
- radar-alerts · source-revision · Recorded 2026-10-18T13:48:02.615Z
- gauge-details · source-revision · Recorded 2026-10-18T13:45:11.083Z
- metars · source-revision · Recorded 2026-10-18T13:45:07.416Z
- surface-analysis · source-revision · Recorded 2026-10-18T13:45:07.416Z
- office-afd · source-revision · Recorded 2026-10-18T13:40:04.927Z
- History recording gap 2026-10-18T13:36:09.828Z to 2026-10-18T13:37:03.145Z · history-recording-gap · Recorded 2026-10-18T13:37:03.145Z
- rain-72h · source-recovered · Recorded 2026-10-18T13:35:06.513Z
- gauges-forecast · source-revision · Recorded 2026-10-18T13:35:06.513Z
Recording coverage and limits
- warnings: retained from 2026-10-17T13:50:38.127Z through 2026-10-18T13:50:05.275Z
- outlooks: retained from 2026-10-17T13:50:38.127Z through 2026-10-18T13:50:05.521Z
- hydro: retained from 2026-10-17T13:50:38.127Z through 2026-10-18T13:45:11.083Z
- analysis: retained from 2026-10-17T13:50:38.127Z through 2026-10-18T13:45:07.416Z
- winter: retained from 2026-10-17T13:50:38.127Z through 2026-10-18T13:38:05.008Z
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.
Spotlight: Flash-flood risk, Day 1
1 of 4River gauges in flood
No river, coastal or lake gauge in this area is in flood, observed or forecast; 1 gauge at action stage.
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.
Data: NOAA/WPC, NOAA/NSSL MRMS.
Radar
NOAA’s radar for the area, loaded by your browser as on the Radar page.
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
- California (NWS states: CA)
- Hazards
- Flash flood warnings, watches and advisories, and the forecasts for them
- 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 : a successful check, so this is none in force, not “can’t tell”.
Sources
NWS warnings and SPC watches checked
NWS watches and advisories checked
WPC excessive rainfall checked
NWPS river gauges checked
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.