Data health

Storm Mode / Tracked area

Winter: Virginia

Wall mode

3 warnings total · 0 tornado warnings · 13 alerts including watches and advisories

Current alert feed · checked

Warnings in area

13 of 13 alerts
  1. Freeze WarningWashington; Frederick; Carroll; Northern Baltimore; Extreme Western Allegany; Central and Eastern Allegany; Northwest Harford; Western Garrett; Eastern Garrett; Augusta; Rockingham; Shenandoah; Frederick; Page; Warren; Clarke; Western Highland; Eastern Highland; Western Loudoun; Northern Virginia Blue Ridge; Central Virginia Blue Ridge; Hampshire; Morgan; Berkeley; Jefferson; Hardy; Western Grant; Eastern Grant; Western Mineral; Eastern Mineral; Western Pendleton; Eastern PendletonNWS Baltimore MD/Washington DC · until warning · alerts checked
  2. Freeze WarningGreenup; Carter; Boyd; Lawrence; Perry; Morgan; Athens; Washington; Jackson; Vinton; Meigs; Gallia; Lawrence; Dickenson; Buchanan; Wayne; Cabell; Mason; Jackson; Wood; Pleasants; Tyler; Lincoln; Putnam; Kanawha; Roane; Wirt; Calhoun; Ritchie; Doddridge; Mingo; Logan; Boone; Clay; Braxton; Gilmer; Lewis; Harrison; Taylor; McDowell; Wyoming; Upshur; Barbour; Northwest Raleigh; Southeast Raleigh; Northwest Fayette; Southeast Fayette; Northwest Nicholas; Southeast Nicholas; Northwest Webster; Southeast Webster; Northwest Pocahontas; Southeast Pocahontas; Northwest Randolph; Southeast RandolphNWS Charleston WV · until warning · alerts checked
  3. Freeze WarningAshe; Alleghany; Watauga; Tazewell; Smyth; Bland; Giles; Wythe; Pulaski; Montgomery; Grayson; Carroll; Floyd; Craig; Alleghany; Bath; Mercer; Summers; Monroe; Eastern Greenbrier; Western GreenbrierNWS Blacksburg VA · until warning · alerts checked
  4. Coastal Flood WatchInland WorcesterNWS Wakefield VA · until watch · radar-alerts checked
  5. Coastal Flood WatchMaryland Beaches; Accomack; NorthamptonNWS Wakefield VA · until watch · radar-alerts checked
  6. Coastal Flood WatchEastern CurrituckNWS Wakefield VA · until watch · radar-alerts checked
  7. Coastal Flood WatchSurry; James CityNWS Wakefield VA · until watch · radar-alerts checked
  8. Coastal Flood WatchChesapeake; Suffolk; Norfolk; PortsmouthNWS Wakefield VA · until watch · radar-alerts checked
  9. Coastal Flood WatchVirginia BeachNWS Wakefield VA · until watch · radar-alerts checked
  10. Coastal Flood WatchNewport News; Isle of WightNWS Wakefield VA · until watch · radar-alerts checked
  11. Frost AdvisorySurry; Wilkes; Roanoke; Botetourt; Rockbridge; Patrick; Franklin; Bedford; AmherstNWS Blacksburg VA · until advisory · radar-alerts checked
  12. Frost AdvisoryNorthwest Montgomery; Northwest Howard; Nelson; Albemarle; Greene; Madison; Rappahannock; Orange; Culpeper; Northern Fauquier; Southern Fauquier; Eastern Loudoun; Northwest Prince WilliamNWS Baltimore MD/Washington DC · until advisory · radar-alerts checked
  13. Frost AdvisoryEstill; Powell; Menifee; Rockcastle; Jackson; Pulaski; Laurel; Wayne; McCreary; Whitley; Knox; Bell; Harlan; Johnson; Wolfe; Magoffin; Floyd; Lee; Breathitt; Knott; Owsley; Perry; Clay; Leslie; Letcher; Martin; PikeNWS Jackson KY · until advisory · radar-alerts checked

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Map

  • Freeze Warning 3
  • Frost Advisory 3

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
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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.

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.

Stored snow depth · footprint valid 2026-10-18 03:00:00 UTC, picture retrieved 2026-10-18 11:23:06.757 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 ; feed generated . Zero cells does not establish coverage or clear weather. Observations from different radars are not merged.

    Station and river observations (80)

    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.

    Showing 80 of 80 listed sources. All surface stations and retained trends · All supported gauges and forecasts

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    Water-level gauge RGIV2

    current · Observed 2.18 ft at 2026-10-18 11:00:00 UTC · Action stage.

    River gauge · Ragged Island Creek · Ragged Island Creek · -76.521915, 36.959965. Units ft; datum not supplied.

    Source checked 2026-10-18 11:55:05.513Z · current.

    Stage in this gauge’s units, not a regional flood depth. Tide/lake gauges remain water levels; datum is not supplied by this feed. Historical observations and the latest forecast keep separate times.

    Retained observations: 42; target 24 hours, at most 96 reports per station. Recording began 2026-10-17 06:15:05.234Z; oldest available reading 2026-10-17 18:00:00 UTC.

    Observed stage and separate NWS forecast at RGIV2 (ft)Dots are retained observations. Lines break for missing fields, long intervals or changed station location or units. 1 recorded discontinuities. Dashed lines, when present, are the separately issued NWS forecast.3.41ft10-17 18:00Z10-18 11:00Z2026-10-17 18:00:00 UTC · 2.01 ft2026-10-17 18:15:00 UTC · 2.05 ft2026-10-17 18:30:00 UTC · 2.08 ft2026-10-17 19:00:00 UTC · 2.15 ft2026-10-17 19:15:00 UTC · 2.18 ft2026-10-17 19:30:00 UTC · 2.21 ft2026-10-17 20:00:00 UTC · 2.24 ft2026-10-17 20:15:00 UTC · 2.28 ft2026-10-17 20:30:00 UTC · 2.28 ft2026-10-17 21:00:00 UTC · 2.32 ft2026-10-17 21:15:00 UTC · 2.34 ft2026-10-17 21:30:00 UTC · 2.35 ft2026-10-17 22:00:00 UTC · 2.38 ft2026-10-17 22:15:00 UTC · 2.38 ft2026-10-17 22:30:00 UTC · 2.38 ft2026-10-17 23:00:00 UTC · 2.38 ft2026-10-17 23:15:00 UTC · 2.36 ft2026-10-17 23:30:00 UTC · 2.35 ft2026-10-18 00:00:00 UTC · 2.31 ft2026-10-18 00:15:00 UTC · 2.28 ft2026-10-18 00:30:00 UTC · 2.26 ft2026-10-18 01:00:00 UTC · 2.19 ft2026-10-18 01:15:00 UTC · 2.16 ft2026-10-18 01:30:00 UTC · 2.13 ft2026-10-18 02:00:00 UTC · 2.09 ft2026-10-18 02:15:00 UTC · 2.06 ft2026-10-18 02:30:00 UTC · 2.02 ft2026-10-18 06:15:00 UTC · 2.01 ft2026-10-18 06:30:00 UTC · 2.03 ft2026-10-18 07:00:00 UTC · 2.09 ft2026-10-18 07:15:00 UTC · 2.11 ft2026-10-18 07:30:00 UTC · 2.14 ft2026-10-18 08:00:00 UTC · 2.18 ft2026-10-18 08:15:00 UTC · 2.19 ft2026-10-18 08:30:00 UTC · 2.2 ft2026-10-18 09:00:00 UTC · 2.23 ft2026-10-18 09:15:00 UTC · 2.24 ft2026-10-18 09:30:00 UTC · 2.24 ft2026-10-18 10:00:00 UTC · 2.24 ft2026-10-18 10:15:00 UTC · 2.24 ft2026-10-18 10:30:00 UTC · 2.22 ft2026-10-18 11:00:00 UTC · 2.18 ft
    Observed stage and separate NWS forecast · 42 retained observations; 1 discontinuities. Lines join reported values only; missing intervals are not interpolated.

    NWS forecast · current

    No forecast maximum supplied.

    Impacts and the full forecast are read for gauges in flood; this one is at action stage.

    Gauge thresholds: action 2 ft; minor 2.5 ft; moderate 3.5 ft; major 4.5 ft.

    Observed reports as a table (42)
    Observed (UTC)Stage / unitsSource category / water
    2026-10-17 18:00:00 UTC2.01 ftAction stage · River gauge
    2026-10-17 18:15:00 UTC2.05 ftAction stage · River gauge
    2026-10-17 18:30:00 UTC2.08 ftAction stage · River gauge
    2026-10-17 19:00:00 UTC2.15 ftAction stage · River gauge
    2026-10-17 19:15:00 UTC2.18 ftAction stage · River gauge
    2026-10-17 19:30:00 UTC2.21 ftAction stage · River gauge
    2026-10-17 20:00:00 UTC2.24 ftAction stage · River gauge
    2026-10-17 20:15:00 UTC2.28 ftAction stage · River gauge
    2026-10-17 20:30:00 UTC2.28 ftAction stage · River gauge
    2026-10-17 21:00:00 UTC2.32 ftAction stage · River gauge
    2026-10-17 21:15:00 UTC2.34 ftAction stage · River gauge
    2026-10-17 21:30:00 UTC2.35 ftAction stage · River gauge
    2026-10-17 22:00:00 UTC2.38 ftAction stage · River gauge
    2026-10-17 22:15:00 UTC2.38 ftAction stage · River gauge
    2026-10-17 22:30:00 UTC2.38 ftAction stage · River gauge
    2026-10-17 23:00:00 UTC2.38 ftAction stage · River gauge
    2026-10-17 23:15:00 UTC2.36 ftAction stage · River gauge
    2026-10-17 23:30:00 UTC2.35 ftAction stage · River gauge
    2026-10-18 00:00:00 UTC2.31 ftAction stage · River gauge
    2026-10-18 00:15:00 UTC2.28 ftAction stage · River gauge
    2026-10-18 00:30:00 UTC2.26 ftAction stage · River gauge
    2026-10-18 01:00:00 UTC2.19 ftAction stage · River gauge
    2026-10-18 01:15:00 UTC2.16 ftAction stage · River gauge
    2026-10-18 01:30:00 UTC2.13 ftAction stage · River gauge
    2026-10-18 02:00:00 UTC2.09 ftAction stage · River gauge
    2026-10-18 02:15:00 UTC2.06 ftAction stage · River gauge
    2026-10-18 02:30:00 UTC2.02 ftAction stage · River gauge
    2026-10-18 06:15:00 UTC2.01 ftAction stage · River gauge
    2026-10-18 06:30:00 UTC2.03 ftAction stage · River gauge
    2026-10-18 07:00:00 UTC2.09 ftAction stage · River gauge
    2026-10-18 07:15:00 UTC2.11 ftAction stage · River gauge
    2026-10-18 07:30:00 UTC2.14 ftAction stage · River gauge
    2026-10-18 08:00:00 UTC2.18 ftAction stage · River gauge
    2026-10-18 08:15:00 UTC2.19 ftAction stage · River gauge
    2026-10-18 08:30:00 UTC2.2 ftAction stage · River gauge
    2026-10-18 09:00:00 UTC2.23 ftAction stage · River gauge
    2026-10-18 09:15:00 UTC2.24 ftAction stage · River gauge
    2026-10-18 09:30:00 UTC2.24 ftAction stage · River gauge
    2026-10-18 10:00:00 UTC2.24 ftAction stage · River gauge
    2026-10-18 10:15:00 UTC2.24 ftAction stage · River gauge
    2026-10-18 10:30:00 UTC2.22 ftAction stage · River gauge
    2026-10-18 11:00:00 UTC2.18 ftAction stage · River gauge
    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 18:00:00 UTC, captured 2026-10-17 18:45:07.189Z; source body SHA-256 05dd767c85748e9a16ef3da8d862ac7af6f3ea1e46e090022714a47205e48848.
    • Observed 2026-10-17 18:15:00 UTC, captured 2026-10-17 19:05:06.801Z; source body SHA-256 60cf58360af10f2d750469fb7df26158e3c395d26d194c9df905bfff272883be.
    • Observed 2026-10-17 18:30:00 UTC, captured 2026-10-17 19:25:05.413Z; source body SHA-256 8bfe0f6c4fbf418a97ed9a70a42faba76076b63d9ed23ca8958be28ed3e3dfbd.
    • Observed 2026-10-17 19:00:00 UTC, captured 2026-10-17 19:45:07.297Z; source body SHA-256 0c5c2e951418422e829868d6340e946c222cc8c6fefd6061bb657410339e4df2.
    • Observed 2026-10-17 19:15:00 UTC, captured 2026-10-17 20:15:05.656Z; source body SHA-256 978c265e2ebfbdcade996208019f4b29023bc6cfb1fc479009c87544e6d1da3f.
    • Observed 2026-10-17 19:30:00 UTC, captured 2026-10-17 20:25:05.363Z; source body SHA-256 426ee104d5a51ad7307122bcdabe4a2fc60cca45879c360f44553bfd934cda00.
    • Observed 2026-10-17 20:00:00 UTC, captured 2026-10-17 20:45:05.720Z; source body SHA-256 7f2551438267833ec9353db6d05261524189c53bd2e697f348f7df87ddf399b5.
    • Observed 2026-10-17 20:15:00 UTC, captured 2026-10-17 21:15:05.435Z; source body SHA-256 c94229fb5300201c94e1548e638f2b09b7823a34bd5d5740f493d84adaf0912a.
    • Observed 2026-10-17 20:30:00 UTC, captured 2026-10-17 21:25:04.659Z; source body SHA-256 587d4b429fdb21364a4a40d69af457e0f516a29baf595199eaa813c8160dfd2a.
    • Observed 2026-10-17 21:00:00 UTC, captured 2026-10-17 21:45:07.045Z; source body SHA-256 43a2e7d545d29fab597c64dfa377979cf0e4cde3c006abfee356d3d9551278cc.
    • Observed 2026-10-17 21:15:00 UTC, captured 2026-10-17 22:15:06.483Z; source body SHA-256 74b9142e78a52de089bc6fcfa68539998c805f0d5788d873a4a6be36d1ba5a12.
    • Observed 2026-10-17 21:30:00 UTC, captured 2026-10-17 22:25:06.849Z; source body SHA-256 9bf964242c4addae0d20866f2d831a9e64ccba11ea3c1b463329b9278533380e.
    • Observed 2026-10-17 22:00:00 UTC, captured 2026-10-17 22:45:06.961Z; source body SHA-256 81897733eaebfe0f53f6bd6934cb4096aec879e50dcd7cdd4ea70fc8c6e69354.
    • Observed 2026-10-17 22:15:00 UTC, captured 2026-10-17 23:05:05.289Z; source body SHA-256 7a38b3030ef43ab69730043f5edb13dbb80532491db42f540b7c72a19de86bf4.
    • Observed 2026-10-17 22:30:00 UTC, captured 2026-10-17 23:25:06.711Z; source body SHA-256 8da59c32db89ffc8bcc344fa162df179ffb3bcfb9c8d6c3d7de078c76c588e37.
    • Observed 2026-10-17 23:00:00 UTC, captured 2026-10-17 23:45:07.141Z; source body SHA-256 e0aa2cdbffe75e84b482e35023ac443e84b1c9dd6a699489f102761b277e05b7.
    • Observed 2026-10-17 23:15:00 UTC, captured 2026-10-18 00:15:07.850Z; source body SHA-256 7af636e43e4b574d14089e61c9d08219091cf9a4e343a3f93fb3e27f7307f6b7.
    • Observed 2026-10-17 23:30:00 UTC, captured 2026-10-18 00:25:06.204Z; source body SHA-256 d05b4112c083f82757f110a6e33eb3863e102b95953e751bf95dba00c1140de3.
    • Observed 2026-10-18 00:00:00 UTC, captured 2026-10-18 00:45:06.728Z; source body SHA-256 afec4416ea0f8de0c9a380660fb699f0e6f2f6de46c7f2306163e8220dd91163.
    • Observed 2026-10-18 00:15:00 UTC, captured 2026-10-18 01:05:05.183Z; source body SHA-256 b4b568ffea5d1284346a71afe8c92556989f3ceaadc7ae4d239f59ab1322b015.
    • Observed 2026-10-18 00:30:00 UTC, captured 2026-10-18 01:25:06.453Z; source body SHA-256 e409fc97034bfb40176782eb786aad2fea65de1c5495bf843e8769c4e41a58d8.
    • Observed 2026-10-18 01:00:00 UTC, captured 2026-10-18 01:45:07.743Z; source body SHA-256 96839b0335ecd43c6dabc983d11df8aeab91e36e5e3372f860eba9f2b2d95541.
    • Observed 2026-10-18 01:15:00 UTC, captured 2026-10-18 02:05:13.475Z; source body SHA-256 609014cbaf42a285bd9ab740fbbab7bbddaaac03beb23c6f16486c8eeeefb6c9.
    • Observed 2026-10-18 01:30:00 UTC, captured 2026-10-18 02:25:06.825Z; source body SHA-256 600cff19b0bc179b7e2f42803631ee390bd1b11283628e6a503e222a0e8b3a14.
    • Observed 2026-10-18 02:00:00 UTC, captured 2026-10-18 02:45:07.313Z; source body SHA-256 62c302570e4c9664062c4d26c0d93ac08750be9a01c8a2e2ac4de36859f02861.
    • Observed 2026-10-18 02:15:00 UTC, captured 2026-10-18 03:05:05.418Z; source body SHA-256 d06efc0ced14d54fb4a70b735eb6bbb109bfd4150373a2e997b781e255fba709.
    • Observed 2026-10-18 02:30:00 UTC, captured 2026-10-18 03:25:06.216Z; source body SHA-256 92f2e27fc506ae63afc75604b8a292744564efc8ffb32faf9d88a12f922eaf04.
    • Observed 2026-10-18 06:15:00 UTC, captured 2026-10-18 07:05:07.012Z; source body SHA-256 e83875034eef60adf5b79996c0a56b9f085bf687a1856093a51e3a12c0fce5c3.
    • Observed 2026-10-18 06:30:00 UTC, captured 2026-10-18 07:25:06.987Z; source body SHA-256 69fe98220b73acbbf241d232d2909186aa6610c9ac7171646f63da1da9f23324.
    • Observed 2026-10-18 07:00:00 UTC, captured 2026-10-18 07:45:07.607Z; source body SHA-256 4bdcf2cef98e5f87b603cbd695cbb63232454cb4c24d84d3f90eead72e55b0c4.
    • Observed 2026-10-18 07:15:00 UTC, captured 2026-10-18 08:05:05.199Z; source body SHA-256 af8d5a866109b6c6c1b34388f3ca1846059323ab2b511b160e5438571fe1ce50.
    • Observed 2026-10-18 07:30:00 UTC, captured 2026-10-18 08:25:07.817Z; source body SHA-256 a1758d3bc70cab0935c46138db08f2a86223299161f86305bd041609184e0cee.
    • Observed 2026-10-18 08:00:00 UTC, captured 2026-10-18 08:45:08.004Z; source body SHA-256 77057086dbcf79ff48990feddd832c0e48635fa92e67025d34584a9a07168b2d.
    • Observed 2026-10-18 08:15:00 UTC, captured 2026-10-18 09:05:06.579Z; source body SHA-256 4d5907c1f177d669d1c3fa332cd97bbb43d01fd8fa997337c82a58a21f7de768.
    • Observed 2026-10-18 08:30:00 UTC, captured 2026-10-18 09:25:07.308Z; source body SHA-256 07dbc3d99c4331a20c0bb7fa2d4c5f48cf22e4b1331e16d2064fa65f70d4bf6b.
    • Observed 2026-10-18 09:00:00 UTC, captured 2026-10-18 09:45:07.931Z; source body SHA-256 d4e4cc77d19cc3ff72d6286cb8f725b077587b20c7ce618af7e66a4252b5b6ce.
    • Observed 2026-10-18 09:15:00 UTC, captured 2026-10-18 10:05:07.709Z; source body SHA-256 6561b759fba2156bde0b43d6e94db6b89cc40f0829ee1201a9f1e304c165bbb8.
    • Observed 2026-10-18 09:30:00 UTC, captured 2026-10-18 10:25:08.828Z; source body SHA-256 e475568e8d4b015904ec594136858852549ad52eb8eea66b1014deb8bc172528.
    • Observed 2026-10-18 10:00:00 UTC, captured 2026-10-18 10:45:06.147Z; source body SHA-256 f9ec384b81483e72a9ae5337534a7a06fa87afcdf9f48f460f2ce7a8d1bfd304.
    • Observed 2026-10-18 10:15:00 UTC, captured 2026-10-18 11:05:05.707Z; source body SHA-256 c502983faaf8b50e20f5d5a0e39db4cfd6d69f178f4871eaf978a959dda960d3.
    • Observed 2026-10-18 10:30:00 UTC, captured 2026-10-18 11:25:05.803Z; source body SHA-256 1669243bd59175d64b0664fb7160c400891c7ddb77037b594e2ded9f97e3d0ac.
    • Observed 2026-10-18 11:00:00 UTC, captured 2026-10-18 11:45:06.462Z; source body SHA-256 b99d58187ca3ea4cc4b9d6c52c512aab30f4d472ae0434818778db973a9178fb.

    Only observed gauge records enter this history. Forecast maxima and forecast hydrograph points never become observations. A missing datum or unsupported flow value remains unknown.

    Observation source page · Cached readings as JSON · Official source

    Recent source changes

    Recording coverage and limits
    • warnings: retained from 2026-10-17T12:04:05.043Z through 2026-10-18T12:04:02.811Z
    • outlooks: retained from 2026-10-17T12:04:05.043Z through 2026-10-18T12:00:09.195Z
    • hydro: retained from 2026-10-17T12:04:05.043Z through 2026-10-18T11:55:05.749Z
    • analysis: retained from 2026-10-17T12:04:05.043Z through 2026-10-18T12:00:08.069Z
    • winter: retained from 2026-10-17T12:04:05.043Z through 2026-10-18T11:53:05.505Z

    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: Winter Storm Severity Index

    1 of 7

    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 to , issued . 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%
    • 10–20%
    • 20–30%
    • 30–40%
    • 40–50%
    • 50–60%
    • 60–70%
    • 70–80%
    • 80–90%
    • 90–95%
    • 95% or more

    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, to , issued . Outlines, as WPC draws them. Data: NOAA/NWS/WPC.

    Winter watches, warnings and advisories

    • Freeze Warning 3 until · NWS Baltimore MD/Washington DC, NWS Blacksburg VA, NWS Charleston WV
    • Frost Advisory 3 until · NWS Baltimore MD/Washington DC, NWS Blacksburg VA, NWS Jackson KY

    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 , for to . WPC’s words, as written. Data: NOAA/NWS/WPC.

    Radar, winter preset

    The Radar page’s winter preset over the area: HRDPS forecast snow with NWS’s warnings on top, loaded by your browser. A forecast, labelled as one there.

    Open the radar

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

    What changed, last 60 minutes

    since , when this server began watching this area

    Nothing has changed since 11:43Z.

    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
    Virginia (NWS states: VA)
    Hazards
    Winter 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 6

    1. Freeze Warning3until 13:00Z
    2. Frost Advisory3until 13:00Z
    Every alert in this area, most urgent first
    1. Freeze WarningWashington; Frederick; Carroll; Northern Baltimore; Extreme Western Allegany; Central and Eastern Allegany; Northwest Harford; Western Garrett; Eastern Garrett; Augusta; Rockingham; Shenandoah; Frederick; Page; Warren; Clarke; Western Highland; Eastern Highland; Western Loudoun; Northern Virginia Blue Ridge; Central Virginia Blue Ridge; Hampshire; Morgan; Berkeley; Jefferson; Hardy; Western Grant; Eastern Grant; Western Mineral; Eastern Mineral; Western Pendleton; Eastern Pendletonuntil · NWS Baltimore MD/Washington DC
    2. Freeze WarningGreenup; Carter; Boyd; Lawrence; Perry; Morgan; Athens; Washington; Jackson; Vinton; Meigs; Gallia; Lawrence; Dickenson; Buchanan; Wayne; Cabell; Mason; Jackson; Wood; Pleasants; Tyler; Lincoln; Putnam; Kanawha; Roane; Wirt; Calhoun; Ritchie; Doddridge; Mingo; Logan; Boone; Clay; Braxton; Gilmer; Lewis; Harrison; Taylor; McDowell; Wyoming; Upshur; Barbour; Northwest Raleigh; Southeast Raleigh; Northwest Fayette; Southeast Fayette; Northwest Nicholas; Southeast Nicholas; Northwest Webster; Southeast Webster; Northwest Pocahontas; Southeast Pocahontas; Northwest Randolph; Southeast Randolphuntil · NWS Charleston WV
    3. Freeze WarningAshe; Alleghany; Watauga; Tazewell; Smyth; Bland; Giles; Wythe; Pulaski; Montgomery; Grayson; Carroll; Floyd; Craig; Alleghany; Bath; Mercer; Summers; Monroe; Eastern Greenbrier; Western Greenbrieruntil · NWS Blacksburg VA
    4. Frost AdvisorySurry; Wilkes; Roanoke; Botetourt; Rockbridge; Patrick; Franklin; Bedford; Amherstuntil · NWS Blacksburg VA
    5. Frost AdvisoryNorthwest Montgomery; Northwest Howard; Nelson; Albemarle; Greene; Madison; Rappahannock; Orange; Culpeper; Northern Fauquier; Southern Fauquier; Eastern Loudoun; Northwest Prince Williamuntil · NWS Baltimore MD/Washington DC
    6. Frost AdvisoryEstill; Powell; Menifee; Rockcastle; Jackson; Pulaski; Laurel; Wayne; McCreary; Whitley; Knox; Bell; Harlan; Johnson; Wolfe; Magoffin; Floyd; Lee; Breathitt; Knott; Owsley; Perry; Clay; Leslie; Letcher; Martin; Pikeuntil · NWS Jackson KY · drawn over this area

    Most urgent first, by the Briefing’s ranking. Checked .

    Sources

    Choose another storm or areaChange monitoring areaSource status

    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.