Data health

Storm Mode / Tracked area

Tornado: Florida

Wall mode

1 warning total · 0 tornado warnings · 1 alert including watches and advisories

Current alert feed · checked

Warnings in area

1 of 1 alerts
  1. Flood WarningLake and Volusia counties, FLNWS Melbourne FL · until warning · alerts checked

Watched places

Places saved on this device appear here with scripting enabled.

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Layers

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
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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
  • 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 (91)

    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 91 of 91 listed sources. All surface stations and retained trends · All supported gauges and forecasts

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    Historical message · warning-expired-as-issued

    Sarasota, FL

    Flood Warning

    Issued
    Updated
    Ends as issued
    Office
    NWS Tampa Bay Ruskin FL

    This is retained evidence, not current protective-action guidance. Segment cancellation does not establish that every part of the warning ended.

    Official NWS warning ↗

    The polygon is a warned area, not a tornado footprint. NWS detection tags are independent of radar algorithms and reports.

    Relevant watched places

    Save named places to check their point against every supported warning.
    Full official message

    Flood Warning issued October 17 at 9:40PM EDT until October 18 at 8:00AM EDT by NWS Tampa Bay Ruskin FL

    ...The Flood Warning continues for the following rivers in Florida...

Myakka River At Myakka River State Park affecting Sarasota County.

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Myakka River at Myakka River State Park.

* WHEN...Until Sunday morning.

* IMPACTS...At 7.0 feet, Park Nature Trail floods. Water approaching
porch steps of cabins.

* ADDITIONAL DETAILS...
- At 9:00 PM EDT Saturday the stage was 7.0 feet.
- Bankfull stage is 7.0 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 9:00 PM EDT Saturday was 7.1 feet.
- Forecast...The river is expected to fall below flood stage just
after midnight tonight and continue falling to 6.6 feet Tuesday
evening.
- Flood stage is 7.0 feet.
- Flood History...This crest compares to a previous crest of 7.0
feet on 09/29/1940.
- https://www.weather.gov/safety/flood
    Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Motorists should not attempt to drive around barricades or drive cars
through flooded areas.

Caution is urged when walking near riverbanks.

Additional information is available at www.weather.gov.

The next statement will be issued Sunday morning at 800 AM EDT.
    Warning-message history (2)

    Data: NOAA/NWS · KTBW.FL.W.0014

    Recent source changes

    Recording coverage and limits
    • warnings: retained from 2026-10-17T14:59:05.146Z through 2026-10-18T14:59:04.839Z
    • outlooks: retained from 2026-10-17T14:59:05.146Z through 2026-10-18T14:55:05.821Z
    • hydro: retained from 2026-10-17T14:59:05.146Z through 2026-10-18T14:55:08.608Z
    • analysis: retained from 2026-10-17T14:59:05.146Z through 2026-10-18T14:45:09.166Z
    • winter: retained from 2026-10-17T14:59:05.146Z through 2026-10-18T14:53:04.500Z

    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: SPC Day 1 outlook

    1 of 5

    SPC Day 1 outlook

    • General Thunderstorms Risk highest in this area

    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.

    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
    Florida (NWS states: FL)
    Hazards
    Tornado 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

    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.