Data health

Storm Mode / Tracked area

Tornado: Florida

Wall mode

2 warnings total · 0 tornado warnings · 2 alerts including watches and advisories

Current alert feed · checked

Warnings in area

2 of 2 alerts
  1. Flood WarningSarasota County, FLNWS Tampa Bay Ruskin FL · until warning · alerts checked
  2. Flood WarningLake and Volusia counties, FLNWS Melbourne FL · until warning · alerts checked

Watched places

Places saved on this device appear here with scripting enabled.

Find or save a place
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
North ↑

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 00:00:00 UTC, picture retrieved 2026-10-18 06:23:06.237 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 (6) · current

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

  1. DJT / C7 · scan 2026-10-18T07:47:26Z · stale
  2. EVX / O0 · scan 2026-10-18T07:51:58Z · current
  3. EVX / P0 · scan 2026-10-18T07:51:58Z · current
  4. JAX / C0 · scan 2026-10-18T07:48:24Z · stale
  5. MLB / U8 · scan 2026-10-18T07:49:35Z · current
  6. TBW / W5 · scan 2026-10-18T07:49:32Z · current
Station and river observations (79)

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 79 of 79 listed sources. All surface stations and retained trends · All supported gauges and forecasts

Selected details

Close

Water-level gauge GENF1

current · Observed 6.83 ft at 2026-10-18 06:30:00 UTC · Action stage.

River gauge · Lake Harney · St. Johns River · -81.035556, 28.713888999999998. Units ft; datum not supplied.

Source checked 2026-10-18 07:55:05.788Z · 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: 23; target 24 hours, at most 96 reports per station. Recording began 2026-10-17 06:15:05.234Z; oldest available reading 2026-10-17 08:30:00 UTC.

Observed stage and separate NWS forecast at GENF1 (ft)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.7.85.8ft10-17 08:30Z10-18 06:30Z2026-10-17 08:30:00 UTC · 6.81 ft2026-10-17 09:30:00 UTC · 6.81 ft2026-10-17 10:30:00 UTC · 6.81 ft2026-10-17 11:30:00 UTC · 6.82 ft2026-10-17 12:30:00 UTC · 6.82 ft2026-10-17 13:30:00 UTC · 6.82 ft2026-10-17 14:30:00 UTC · 6.82 ft2026-10-17 15:30:00 UTC · 6.82 ft2026-10-17 16:30:00 UTC · 6.83 ft2026-10-17 17:30:00 UTC · 6.83 ft2026-10-17 18:30:00 UTC · 6.83 ft2026-10-17 19:30:00 UTC · 6.83 ft2026-10-17 20:30:00 UTC · 6.83 ft2026-10-17 21:30:00 UTC · 6.83 ft2026-10-17 22:30:00 UTC · 6.83 ft2026-10-17 23:30:00 UTC · 6.83 ft2026-10-18 00:30:00 UTC · 6.83 ft2026-10-18 01:30:00 UTC · 6.83 ft2026-10-18 02:30:00 UTC · 6.83 ft2026-10-18 03:30:00 UTC · 6.83 ft2026-10-18 04:30:00 UTC · 6.83 ft2026-10-18 05:30:00 UTC · 6.83 ft2026-10-18 06:30:00 UTC · 6.83 ft
Observed stage and separate NWS forecast · 23 retained observations; 0 discontinuities. Lines join reported values only; missing intervals are not interpolated.

NWS forecast · current

Highest listed forecast: 6.9 ft at 2026-10-18 18:00:00 UTC; issued 2026-10-18 00:44:00 UTC. Action stage.

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

Gauge thresholds: action 6 ft; minor 8 ft; moderate 9 ft; major 10 ft.

Observed reports as a table (23)
Observed (UTC)Stage / unitsSource category / water
2026-10-17 08:30:00 UTC6.81 ftAction stage · River gauge
2026-10-17 09:30:00 UTC6.81 ftAction stage · River gauge
2026-10-17 10:30:00 UTC6.81 ftAction stage · River gauge
2026-10-17 11:30:00 UTC6.82 ftAction stage · River gauge
2026-10-17 12:30:00 UTC6.82 ftAction stage · River gauge
2026-10-17 13:30:00 UTC6.82 ftAction stage · River gauge
2026-10-17 14:30:00 UTC6.82 ftAction stage · River gauge
2026-10-17 15:30:00 UTC6.82 ftAction stage · River gauge
2026-10-17 16:30:00 UTC6.83 ftAction stage · River gauge
2026-10-17 17:30:00 UTC6.83 ftAction stage · River gauge
2026-10-17 18:30:00 UTC6.83 ftAction stage · River gauge
2026-10-17 19:30:00 UTC6.83 ftAction stage · River gauge
2026-10-17 20:30:00 UTC6.83 ftAction stage · River gauge
2026-10-17 21:30:00 UTC6.83 ftAction stage · River gauge
2026-10-17 22:30:00 UTC6.83 ftAction stage · River gauge
2026-10-17 23:30:00 UTC6.83 ftAction stage · River gauge
2026-10-18 00:30:00 UTC6.83 ftAction stage · River gauge
2026-10-18 01:30:00 UTC6.83 ftAction stage · River gauge
2026-10-18 02:30:00 UTC6.83 ftAction stage · River gauge
2026-10-18 03:30:00 UTC6.83 ftAction stage · River gauge
2026-10-18 04:30:00 UTC6.83 ftAction stage · River gauge
2026-10-18 05:30:00 UTC6.83 ftAction stage · River gauge
2026-10-18 06:30:00 UTC6.83 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 08:30:00 UTC, captured 2026-10-17 09:45:05.916Z; source body SHA-256 0d8a80be93500a5f3bdc37d2e564df5d4898bc27d32306a97751b1cd420138f9.
  • Observed 2026-10-17 09:30:00 UTC, captured 2026-10-17 10:45:07.923Z; source body SHA-256 7bb0ccc8f7c5d0a6391ad58c0963386b4333a19b2efea1078e71df1a573af4f8.
  • Observed 2026-10-17 10:30:00 UTC, captured 2026-10-17 11:45:05.971Z; source body SHA-256 9580f94d36bb51766baca293fb8a39ee092bfc1d573ffd9b5d0075bf0abf910c.
  • Observed 2026-10-17 11:30:00 UTC, captured 2026-10-17 12:45:05.750Z; source body SHA-256 700f3ed3aad038cefd2d0e32ab78d3be567c5e53c8643550abb468f356930314.
  • Observed 2026-10-17 12:30:00 UTC, captured 2026-10-17 13:45:07.143Z; source body SHA-256 152c859ad430a8e0d2ffc28a0f51f5130404f5f6721b81e140d5688b4fdcea57.
  • Observed 2026-10-17 13:30:00 UTC, captured 2026-10-17 14:45:09.236Z; source body SHA-256 a6833f55ffe1968d740aeafafef620a72fad0253d816679bb8a664b231f7709e.
  • Observed 2026-10-17 14:30:00 UTC, captured 2026-10-17 15:45:05.072Z; source body SHA-256 bc46093667a909a382a079b402336f71b796cc7127c1e4794ebdd3983666ee0c.
  • Observed 2026-10-17 15:30:00 UTC, captured 2026-10-17 16:45:35.615Z; source body SHA-256 0b40be2ac7a73e9497b09028d28aaaa9d33fa6164f556ed7412c6426a786a251.
  • Observed 2026-10-17 16:30:00 UTC, captured 2026-10-17 17:45:05.445Z; source body SHA-256 3cccde1ecb1a1c168ec49fc749b2d560958c18957a8f3242181fe5c64f160c46.
  • Observed 2026-10-17 17:30:00 UTC, captured 2026-10-17 18:45:07.189Z; source body SHA-256 05dd767c85748e9a16ef3da8d862ac7af6f3ea1e46e090022714a47205e48848.
  • Observed 2026-10-17 18:30:00 UTC, captured 2026-10-17 19:45:07.297Z; source body SHA-256 0c5c2e951418422e829868d6340e946c222cc8c6fefd6061bb657410339e4df2.
  • Observed 2026-10-17 19:30:00 UTC, captured 2026-10-17 20:45:05.720Z; source body SHA-256 7f2551438267833ec9353db6d05261524189c53bd2e697f348f7df87ddf399b5.
  • Observed 2026-10-17 20:30:00 UTC, captured 2026-10-17 21:45:07.045Z; source body SHA-256 43a2e7d545d29fab597c64dfa377979cf0e4cde3c006abfee356d3d9551278cc.
  • Observed 2026-10-17 21:30:00 UTC, captured 2026-10-17 22:45:06.961Z; source body SHA-256 81897733eaebfe0f53f6bd6934cb4096aec879e50dcd7cdd4ea70fc8c6e69354.
  • Observed 2026-10-17 22:30:00 UTC, captured 2026-10-17 23:45:07.141Z; source body SHA-256 e0aa2cdbffe75e84b482e35023ac443e84b1c9dd6a699489f102761b277e05b7.
  • Observed 2026-10-17 23:30:00 UTC, captured 2026-10-18 00:45:06.728Z; source body SHA-256 afec4416ea0f8de0c9a380660fb699f0e6f2f6de46c7f2306163e8220dd91163.
  • Observed 2026-10-18 00:30:00 UTC, captured 2026-10-18 01:45:07.743Z; source body SHA-256 96839b0335ecd43c6dabc983d11df8aeab91e36e5e3372f860eba9f2b2d95541.
  • Observed 2026-10-18 01:30:00 UTC, captured 2026-10-18 02:45:07.313Z; source body SHA-256 62c302570e4c9664062c4d26c0d93ac08750be9a01c8a2e2ac4de36859f02861.
  • Observed 2026-10-18 02:30:00 UTC, captured 2026-10-18 03:45:07.896Z; source body SHA-256 4887920066f1fd446f3fc0a9c54e7c8d1c5ed9910016019e90ef50b19ca74968.
  • Observed 2026-10-18 03:30:00 UTC, captured 2026-10-18 04:45:06.385Z; source body SHA-256 8cea083d6932c01bf6481890352407106b23688126b53d02872d2802cf6bae93.
  • Observed 2026-10-18 04:30:00 UTC, captured 2026-10-18 05:45:06.584Z; source body SHA-256 6ed9115dfead54b0e075dfbe05d2b62ebd3130e8f5d1f4f403faba9da112763a.
  • Observed 2026-10-18 05:30:00 UTC, captured 2026-10-18 06:45:07.545Z; source body SHA-256 9cc0eb80af90f52238c726b6d50cafa53d7706bcb8d83f269f808e2365fab14b.
  • Observed 2026-10-18 06:30:00 UTC, captured 2026-10-18 07:45:07.607Z; source body SHA-256 4bdcf2cef98e5f87b603cbd695cbb63232454cb4c24d84d3f90eead72e55b0c4.

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 2026-10-17T07:58:34.238Z through 2026-10-18T07:58:03.743Z
  • outlooks: retained from 2026-10-17T07:58:34.238Z through 2026-10-18T07:55:07.208Z
  • hydro: retained from 2026-10-17T07:58:34.238Z through 2026-10-18T07:55:07.943Z
  • analysis: retained from 2026-10-17T07:58:34.238Z through 2026-10-18T07:45:08.639Z
  • winter: retained from 2026-10-17T07:58:34.238Z through 2026-10-18T07:53:05.075Z

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

since , when this server began watching this area

Nothing has changed since 07:29Z.

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.