Data health

Storm Mode / Tracked area

Coastal flooding: Virginia

Wall mode

3 warnings total · 0 tornado warnings · 12 alerts including watches and advisories

Current alert feed · checked

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.

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Warnings in area

12 of 12 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 City; Newport News; Isle of WightNWS 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. 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
  11. Frost AdvisoryEstill; Powell; Menifee; Rockcastle; Jackson; Pulaski; Laurel; Wayne; McCreary; Whitley; Knox; Bell; Harlan; Elliott; Morgan; Johnson; Wolfe; Magoffin; Floyd; Lee; Breathitt; Knott; Owsley; Perry; Clay; Leslie; Letcher; Martin; PikeNWS Jackson KY · until advisory · radar-alerts checked
  12. Frost AdvisorySurry; Wilkes; Roanoke; Botetourt; Rockbridge; Patrick; Franklin; Bedford; AmherstNWS Blacksburg VA · until advisory · radar-alerts checked

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Map

  • Coastal Flood Watch 6

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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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 2026-10-17 00:00:00 UTC, picture retrieved 2026-10-17 06:08:57.387 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

Radar-derived cells (0) · unavailable

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

    Station and river observations (81)

    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 81 of 81 listed sources. All surface stations and retained trends · All supported gauges and forecasts

    Selected details

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    Surface station KW31

    current · Observed 2026-10-17 10:15:00 UTC · wind 3 kt · temperature 14 °C.

    Station KW31 · -78.1838, 36.9599 (longitude, latitude).

    Source checked 2026-10-17 10:30:05.038Z · 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: 13; target 24 hours, at most 96 reports per station. Recording began 2026-10-17 06:15:07.108Z; oldest available reading 2026-10-17 06:15:00 UTC.

    Observed sustained wind at KW31 (kt)Dots are retained observations. Lines break for missing fields, long intervals or changed station location or units. 0 recorded discontinuities. Dashed lines, when present, are the separately issued NWS forecast.8-1kt10-17 06:15Z10-17 10:15Z2026-10-17 06:15:00 UTC · 7 kt2026-10-17 06:35:00 UTC · 5 kt2026-10-17 06:55:00 UTC · 3 kt2026-10-17 07:15:00 UTC · 5 kt2026-10-17 07:35:00 UTC · 3 kt2026-10-17 07:55:00 UTC · 7 kt2026-10-17 08:15:00 UTC · 5 kt2026-10-17 08:35:00 UTC · 3 kt2026-10-17 08:55:00 UTC · 5 kt2026-10-17 09:15:00 UTC · 0 kt2026-10-17 09:35:00 UTC · 5 kt2026-10-17 09:55:00 UTC · 0 kt2026-10-17 10:15:00 UTC · 3 kt
    Observed sustained wind · 13 retained observations; 0 discontinuities. Lines join reported values only; missing intervals are not interpolated.
    Temperature, dew point and pressure trends
    Observed temperature at KW31 (°C)Dots are retained observations. Lines break for missing fields, long intervals or changed station location or units. 0 recorded discontinuities. Dashed lines, when present, are the separately issued NWS forecast.17.113°C10-17 06:15Z10-17 10:15Z2026-10-17 06:15:00 UTC · 16.1 °C2026-10-17 06:35:00 UTC · 16 °C2026-10-17 06:55:00 UTC · 15.8 °C2026-10-17 07:15:00 UTC · 15.6 °C2026-10-17 07:35:00 UTC · 15.3 °C2026-10-17 07:55:00 UTC · 14.7 °C2026-10-17 08:15:00 UTC · 14.3 °C2026-10-17 08:35:00 UTC · 14.2 °C2026-10-17 08:55:00 UTC · 14.2 °C2026-10-17 09:15:00 UTC · 14.2 °C2026-10-17 09:35:00 UTC · 14.2 °C2026-10-17 09:55:00 UTC · 14 °C2026-10-17 10:15:00 UTC · 14 °C
    Observed temperature · 13 retained observations; 0 discontinuities. Lines join reported values only; missing intervals are not interpolated.
    Observed dew point at KW31 (°C)Dots are retained observations. Lines break for missing fields, long intervals or changed station location or units. 0 recorded discontinuities. Dashed lines, when present, are the separately issued NWS forecast.15.312.3°C10-17 06:15Z10-17 10:15Z2026-10-17 06:15:00 UTC · 13.8 °C2026-10-17 06:35:00 UTC · 13.3 °C2026-10-17 06:55:00 UTC · 13.3 °C2026-10-17 07:15:00 UTC · 13.5 °C2026-10-17 07:35:00 UTC · 13.5 °C2026-10-17 07:55:00 UTC · 13.9 °C2026-10-17 08:15:00 UTC · 14.3 °C2026-10-17 08:35:00 UTC · 14.2 °C2026-10-17 08:55:00 UTC · 14.2 °C2026-10-17 09:15:00 UTC · 14.2 °C2026-10-17 09:35:00 UTC · 14.2 °C2026-10-17 09:55:00 UTC · 14 °C2026-10-17 10:15:00 UTC · 14 °C
    Observed dew point · 13 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 (13)
    Observed (UTC)Wind / gust (kt)From (° true)Temperature / dew point (°C)Pressure (mb)Visibility (mi)
    2026-10-17 06:15:00 UTC7 / Not reported3016.1 / 13.8Not reported10 or more
    2026-10-17 06:35:00 UTC5 / Not reported2016 / 13.3Not reported10 or more
    2026-10-17 06:55:00 UTC3 / Not reported3015.8 / 13.3Not reported10 or more
    2026-10-17 07:15:00 UTC5 / Not reported1015.6 / 13.5Not reported10 or more
    2026-10-17 07:35:00 UTC3 / Not reported4015.3 / 13.5Not reported10 or more
    2026-10-17 07:55:00 UTC7 / Not reported34014.7 / 13.9Not reported10 or more
    2026-10-17 08:15:00 UTC5 / Not reported34014.3 / 14.3Not reported7
    2026-10-17 08:35:00 UTC3 / Not reported2014.2 / 14.2Not reported7
    2026-10-17 08:55:00 UTC5 / Not reported2014.2 / 14.2Not reported10 or more
    2026-10-17 09:15:00 UTC0 / Not reportedCalm14.2 / 14.2Not reported10 or more
    2026-10-17 09:35:00 UTC5 / Not reported1014.2 / 14.2Not reported4
    2026-10-17 09:55:00 UTC0 / Not reportedCalm14 / 14Not reported7
    2026-10-17 10:15:00 UTC3 / Not reported3014 / 14Not reported10 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 06:15:00 UTC, captured 2026-10-17 06:30:05.861Z; source body SHA-256 d2367d9768b90c597493305ffa360f940ef03b7106f33dd081f52a3184a99a76.
    • Observed 2026-10-17 06:35:00 UTC, captured 2026-10-17 06:45:06.740Z; source body SHA-256 9c6f5a3106002efdcc7a8b2d0e8218089792e9eef38cd8299c5bd836e5d42087.
    • Observed 2026-10-17 06:55:00 UTC, captured 2026-10-17 07:00:07.405Z; source body SHA-256 144290c75a8e56c75efc02af4781ad6023effc93af11beecc88e5a894fd759e2.
    • Observed 2026-10-17 07:15:00 UTC, captured 2026-10-17 07:30:07.049Z; source body SHA-256 72518a7cc84febeb6a5215ea486f40da6a7f9fd82c469215c981994a032b8dde.
    • Observed 2026-10-17 07:35:00 UTC, captured 2026-10-17 07:45:06.824Z; source body SHA-256 969c77d7b2b2764c9f773a87041c6cbbbbaf8823bfa35f91b4140429ac51bb7a.
    • Observed 2026-10-17 07:55:00 UTC, captured 2026-10-17 08:00:09.060Z; source body SHA-256 7be3a24f888fea0090cfe562315fa855fd38009dce22d030b3202578d40de7a3.
    • Observed 2026-10-17 08:15:00 UTC, captured 2026-10-17 08:30:06.317Z; source body SHA-256 ee57d94d765305bdee2e9324b9ec29aed1dcaefe34d7679035bd31c26621fb73.
    • Observed 2026-10-17 08:35:00 UTC, captured 2026-10-17 08:45:06.623Z; source body SHA-256 a3e5257dcf1bc3618e16cbe3b34c3744fe8e49bdd3fafa0fbdc0e4b1a5568c20.
    • Observed 2026-10-17 08:55:00 UTC, captured 2026-10-17 09:00:08.266Z; source body SHA-256 dda37380aed4adf0d16283db418b687ad12fa115e99cb467408b1713a5975398.
    • Observed 2026-10-17 09:15:00 UTC, captured 2026-10-17 09:30:07.003Z; source body SHA-256 ce16615c7ffb7c9225122ce0061b3c973daddab7d943d3cec70767f99ed3598c.
    • Observed 2026-10-17 09:35:00 UTC, captured 2026-10-17 09:45:06.572Z; source body SHA-256 264ee016d2ae83ee5e7131cea90c67d6f9bde3f9890fbab2f70dc771a0f7992e.
    • Observed 2026-10-17 09:55:00 UTC, captured 2026-10-17 10:00:07.986Z; source body SHA-256 9340f13b53b6f68bd8a30ed2d06d6d234571fd5b0e713e9ce9e31feeb68061fa.
    • Observed 2026-10-17 10:15:00 UTC, captured 2026-10-17 10:30:06.352Z; source body SHA-256 87ae8c0134ee4bb56b82c46d1fd6b1969bd7b7a47f3d1c0e425824aacaac3811.

    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

    Recording coverage and limits
    • warnings: retained from 2026-10-16T10:44:56.510Z through 2026-10-17T10:44:03.974Z
    • outlooks: retained from 2026-10-16T10:44:56.510Z through 2026-10-17T10:40:06.365Z
    • hydro: retained from 2026-10-16T10:44:56.510Z through 2026-10-17T10:35:06.811Z
    • analysis: retained from 2026-10-16T10:44:56.510Z through 2026-10-17T10:30:06.352Z
    • winter: retained from 2026-10-16T10:44:56.510Z through 2026-10-17T10:38:04.373Z

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

    Auto-updating checks this site’s cache every minute; each source keeps its own clock.

    Spotlight: Radar

    1 of 1

    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

    since , when this server began watching this area
    1. Coastal Flood Watch extended in time and area by NWS Wakefield VA: Eastern Currituck
    2. Coastal Flood Watch extended in time and area by NWS Wakefield VA: Inland Worcester
    3. Coastal Flood Watch extended in time and area by NWS Wakefield VA: Maryland Beaches; Accomack; Northampton
    4. Coastal Flood Watch extended in time by NWS Wakefield VA: Chesapeake; Suffolk; Norfolk; Portsmouth
    5. Coastal Flood Watch extended in time by NWS Wakefield VA: Surry; James City; Newport News; Isle of Wight
    6. Coastal Flood Watch extended in time by NWS Wakefield VA: Virginia Beach

    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
    Coastal 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 6

    1. Coastal Flood Watch66 new · 6 not yet in effect · until 20 Oct 13:00Z
    Every alert in this area, most urgent first
    1. Coastal Flood WatchInland WorcesterFrom · until · NWS Wakefield VA · drawn over this area
    2. Coastal Flood WatchMaryland Beaches; Accomack; NorthamptonFrom · until · NWS Wakefield VA
    3. Coastal Flood WatchEastern CurrituckFrom · until · NWS Wakefield VA · drawn over this area
    4. Coastal Flood WatchSurry; James City; Newport News; Isle of WightFrom · until · NWS Wakefield VA
    5. Coastal Flood WatchChesapeake; Suffolk; Norfolk; PortsmouthFrom · until · NWS Wakefield VA
    6. Coastal Flood WatchVirginia BeachFrom · until · NWS Wakefield VA

    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.