Data health

Storm Mode / Tracked area

Virginia

Wall mode

0 warnings total · 0 tornado warnings · 7 alerts including watches and advisories

Current alert feed · checked

Warnings in area

7 of 7 alerts
  1. Coastal Flood WatchInland WorcesterNWS Wakefield VA · until watch · radar-alerts checked
  2. Coastal Flood WatchMaryland Beaches; Accomack; NorthamptonNWS Wakefield VA · until watch · radar-alerts checked
  3. Coastal Flood WatchEastern CurrituckNWS Wakefield VA · until watch · radar-alerts checked
  4. Coastal Flood WatchSurry; James CityNWS Wakefield VA · until watch · radar-alerts checked
  5. Coastal Flood WatchChesapeake; Suffolk; Norfolk; PortsmouthNWS Wakefield VA · until watch · radar-alerts checked
  6. Coastal Flood WatchVirginia BeachNWS Wakefield VA · until watch · radar-alerts checked
  7. Coastal Flood WatchNewport News; Isle of WightNWS Wakefield VA · until watch · radar-alerts checked

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Map

  • Coastal Flood Watch 7

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 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
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  • 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 (77)

    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 77 of 77 listed sources. All surface stations and retained trends · All supported gauges and forecasts

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    Water-level gauge CHBV2

    unavailable · No observation in the latest cached source list. Retained readings below are historical; an absent gauge may have fallen below action stage or stopped reporting.

    Tide gauge (coastal water level) · Chesapeake Bay Bridge Tunnel (IN MLLW) · Chesapeake Bay · -76.08325, 37.03291. Units ft; datum not supplied.

    Source checked 2026-10-18 14:35:04.800Z · 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: 5; target 24 hours, at most 96 reports per station. Recording began 2026-10-17 06:15:05.234Z; oldest available reading 2026-10-18 08:36:00 UTC.

    Observed stage and separate NWS forecast at CHBV2 (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.7.21.6ft10-18 08:36Z10-21 20:00Z2026-10-18 08:36:00 UTC · 6.17 ft2026-10-18 08:54:00 UTC · 6.08 ft2026-10-18 09:24:00 UTC · 6.14 ft2026-10-18 11:36:00 UTC · 5.13 ft2026-10-18 11:54:00 UTC · 4.97 ft
    Observed stage and separate NWS forecast · 5 retained observations; 1 discontinuities. Dashed: NWS forecast issued 2026-10-18 09:17:00 UTC; forecast valid times are not observations. Lines join reported values only; missing intervals are not interpolated.

    NWS forecast · current

    Highest listed forecast: 5.3 ft at 2026-10-21 20:00:00 UTC; issued 2026-10-18 09:17:00 UTC. Minor flooding.

    Forecasts are issued routinely year-round.

    Gauge thresholds: action 4.5 ft; minor 5 ft; moderate 5.5 ft; major 6 ft.

    Forecast points (84) · issued 2026-10-18 09:17:00 UTC
    Forecast valid time (UTC)Forecast Tide Height
    2026-10-18 09:00:00 UTC3.1 ft
    2026-10-18 10:00:00 UTC2.9 ft
    2026-10-18 11:00:00 UTC2.7 ft
    2026-10-18 12:00:00 UTC2.6 ft
    2026-10-18 13:00:00 UTC2.8 ft
    2026-10-18 14:00:00 UTC3 ft
    2026-10-18 15:00:00 UTC3.3 ft
    2026-10-18 16:00:00 UTC3.8 ft
    2026-10-18 17:00:00 UTC4.1 ft
    2026-10-18 18:00:00 UTC4.3 ft
    2026-10-18 19:00:00 UTC4.2 ft
    2026-10-18 20:00:00 UTC4.1 ft
    2026-10-18 21:00:00 UTC3.8 ft
    2026-10-18 22:00:00 UTC3.4 ft
    2026-10-18 23:00:00 UTC2.9 ft
    2026-10-19 00:00:00 UTC2.7 ft
    2026-10-19 01:00:00 UTC2.6 ft
    2026-10-19 02:00:00 UTC2.7 ft
    2026-10-19 03:00:00 UTC2.9 ft
    2026-10-19 04:00:00 UTC3.3 ft
    2026-10-19 05:00:00 UTC3.6 ft
    2026-10-19 06:00:00 UTC4 ft
    2026-10-19 07:00:00 UTC4 ft
    2026-10-19 08:00:00 UTC3.9 ft
    2026-10-19 09:00:00 UTC3.7 ft
    2026-10-19 10:00:00 UTC3.5 ft
    2026-10-19 11:00:00 UTC3.1 ft
    2026-10-19 12:00:00 UTC2.9 ft
    2026-10-19 13:00:00 UTC2.9 ft
    2026-10-19 14:00:00 UTC3 ft
    2026-10-19 15:00:00 UTC3.3 ft
    2026-10-19 16:00:00 UTC3.6 ft
    2026-10-19 17:00:00 UTC4.1 ft
    2026-10-19 18:00:00 UTC4.4 ft
    2026-10-19 19:00:00 UTC4.6 ft
    2026-10-19 20:00:00 UTC4.8 ft
    2026-10-19 21:00:00 UTC4.6 ft
    2026-10-19 22:00:00 UTC4.3 ft
    2026-10-19 23:00:00 UTC3.9 ft
    2026-10-20 00:00:00 UTC3.5 ft
    2026-10-20 01:00:00 UTC3.2 ft
    2026-10-20 02:00:00 UTC3.1 ft
    2026-10-20 03:00:00 UTC3.2 ft
    2026-10-20 04:00:00 UTC3.5 ft
    2026-10-20 05:00:00 UTC3.9 ft
    2026-10-20 06:00:00 UTC4.3 ft
    2026-10-20 07:00:00 UTC4.6 ft
    2026-10-20 08:00:00 UTC4.8 ft
    2026-10-20 09:00:00 UTC4.8 ft
    2026-10-20 10:00:00 UTC4.6 ft
    2026-10-20 11:00:00 UTC4.2 ft
    2026-10-20 12:00:00 UTC3.8 ft
    2026-10-20 13:00:00 UTC3.5 ft
    2026-10-20 14:00:00 UTC3.4 ft
    2026-10-20 15:00:00 UTC3.5 ft
    2026-10-20 16:00:00 UTC3.7 ft
    2026-10-20 17:00:00 UTC4 ft
    2026-10-20 18:00:00 UTC4.5 ft
    2026-10-20 19:00:00 UTC4.8 ft
    2026-10-20 20:00:00 UTC5.1 ft
    2026-10-20 21:00:00 UTC5.1 ft
    2026-10-20 22:00:00 UTC4.9 ft
    2026-10-20 23:00:00 UTC4.6 ft
    2026-10-21 00:00:00 UTC4.1 ft
    2026-10-21 01:00:00 UTC3.6 ft
    2026-10-21 02:00:00 UTC3.3 ft
    2026-10-21 03:00:00 UTC3.3 ft
    2026-10-21 04:00:00 UTC3.4 ft
    2026-10-21 05:00:00 UTC3.7 ft
    2026-10-21 06:00:00 UTC4.2 ft
    2026-10-21 07:00:00 UTC4.6 ft
    2026-10-21 08:00:00 UTC5 ft
    2026-10-21 09:00:00 UTC5.2 ft
    2026-10-21 10:00:00 UTC5.1 ft
    2026-10-21 11:00:00 UTC4.9 ft
    2026-10-21 12:00:00 UTC4.4 ft
    2026-10-21 13:00:00 UTC4 ft
    2026-10-21 14:00:00 UTC3.6 ft
    2026-10-21 15:00:00 UTC3.5 ft
    2026-10-21 16:00:00 UTC3.7 ft
    2026-10-21 17:00:00 UTC4 ft
    2026-10-21 18:00:00 UTC4.3 ft
    2026-10-21 19:00:00 UTC4.8 ft
    2026-10-21 20:00:00 UTC5.3 ft
    NWS gauge impact statements
    • 6 ft: Severe flooding will cause extensive inundation and flooding of numerous roads and buildings resulting in a significant threat to property and life. Water will be 2 to 3 feet or more above ground level in some areas. Severe flooding will extend inland from the waterfront and shoreline flooding homes, businesses and isolating some neighborhoods. Numerous roads will be impassable under several feet of water and cars submerged. Some areas will need to be evacuated.
    • 5.5 ft: Widespread flooding of vulnerable areas will result in an elevated threat of property damage to homes and businesses near the waterfront and shoreline. Water will be 1 to 2 feet above ground level in some areas resulting in a sufficient depth to close numerous roads and threaten homes and businesses. Flooding will extend inland from the waterfront along tidal rivers and bays resulting in some road closures and flooding of vehicles.
    • 5 ft: Shallow flooding is expected in the most vulnerable locations near the waterfront and shoreline resulting in a low threat of property damage. Expect up to one foot of water above ground level in low lying, vulnerable areas. Some roads and low lying property including parking lots, parks and lawns near the waterfront will experience shallow flooding.
    Observed reports as a table (5)
    Observed (UTC)Stage / unitsSource category / water
    2026-10-18 08:36:00 UTC6.17 ftMajor flooding · Tide gauge (coastal water level)
    2026-10-18 08:54:00 UTC6.08 ftMajor flooding · Tide gauge (coastal water level)
    2026-10-18 09:24:00 UTC6.14 ftMajor flooding · Tide gauge (coastal water level)
    2026-10-18 11:36:00 UTC5.13 ftMinor flooding · Tide gauge (coastal water level)
    2026-10-18 11:54:00 UTC4.97 ftAction stage · Tide gauge (coastal water level)
    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 2026-10-18 08:36:00 UTC, captured 2026-10-18 09:45:07.931Z; source body SHA-256 d4e4cc77d19cc3ff72d6286cb8f725b077587b20c7ce618af7e66a4252b5b6ce.
    • Observed 2026-10-18 08:54:00 UTC, captured 2026-10-18 10:05:07.709Z; source body SHA-256 6561b759fba2156bde0b43d6e94db6b89cc40f0829ee1201a9f1e304c165bbb8.
    • Observed 2026-10-18 09:24:00 UTC, captured 2026-10-18 10:25:08.828Z; source body SHA-256 e475568e8d4b015904ec594136858852549ad52eb8eea66b1014deb8bc172528.
    • Observed 2026-10-18 11:36:00 UTC, captured 2026-10-18 12:35:05.943Z; source body SHA-256 cbd1e58236ca3fb49bf5a7ea0fc0147357cc40b9a2beb0d15aa361ae7c4b454e.
    • Observed 2026-10-18 11:54:00 UTC, captured 2026-10-18 12:55:05.101Z; source body SHA-256 abf8ad17518780f707f5418aa0450a9f2058932e972516266c6ee3aa49432053.

    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 2026-10-17T14:37:58.509Z through 2026-10-18T14:37:03.844Z
    • outlooks: retained from 2026-10-17T14:37:58.509Z through 2026-10-18T14:35:05.195Z
    • hydro: retained from 2026-10-17T14:37:58.509Z through 2026-10-18T14:35:07.225Z
    • analysis: retained from 2026-10-17T14:37:58.509Z through 2026-10-18T14:30:11.609Z
    • winter: retained from 2026-10-17T14:37:58.509Z through 2026-10-18T14:23:04.813Z

    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.

    Coastal observations

    Scheduled public-station observations

    Water levels are relative to the named datum, not flood depth above ground. Observations keep their own report times.

    Coverage and interpretation

    Observed water level is relative to the named vertical datum, not flood depth above ground. Observed minus predicted tide is a matched-time residual, not a universal storm-surge or inundation forecast. Buoy wind is not a cyclone maximum; significant wave height is not coastal flood depth. Missing readings are not zero.

    Only operator-configured public stations are collected. Coastal context includes stations inside the named monitoring area or within 100 nautical miles of a vertex of its published outline, so offshore buoys can be included; this is a proximity rule, not an impact footprint. Cyclone-only context is within 600 nautical miles of the selected advisory center. Shown center distances are not impact radii. Station-file history without a reported position is not assigned a historical location.

    NOAA CO-OPS water levels and predicted tide

    Source current · checked 2026-10-18 14:32:01.940Z. 0 configured stations in this view.

    No configured station has been collected in this scope. This does not establish safe coastal conditions.

    NOAA NDBC wind, pressure and waves

    Source current · checked 2026-10-18 14:36:02.792Z. 0 configured stations in this view.

    No configured station has been collected in this scope. This does not establish safe coastal conditions.

    Complete cached coastal station directory · Source health

    Spotlight: SPC Day 1 outlook

    1 of 15

    SPC Day 1 outlook

    • General Thunderstorms Risk

    SPC’s Day 1 categorical outlook, valid to , issued . 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, to , issued : a chance of flash flooding, in four categories. Data: NOAA/WPC.

    River gauges in flood

    0 major · 6 moderate · 18 minor · 4 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.

    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 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

    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 , for to . 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

    1. Tappahannock (IN MLLW) (RAPV2) rose to minor flooding, forecast
    2. Lewisetta (IN MLLW) (LWTV2) rose to minor flooding, forecast

    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
    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 7

    1. Coastal Flood Watch77 not yet in effect · until 21 Oct 14:00Z
    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 CityFrom · until · NWS Wakefield VA
    5. Coastal Flood WatchChesapeake; Suffolk; Norfolk; PortsmouthFrom · until · NWS Wakefield VA
    6. Coastal Flood WatchVirginia BeachFrom · until · NWS Wakefield VA
    7. Coastal Flood WatchNewport News; Isle of WightFrom · 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.