Right now
The most recent data we hold from NOAA arrived 3 minutes ago, and this point is in it.
5 other detections within 20 km in the last 24 hours, the nearest 5 km from here.
This alert expired on 19 September 2026 at 21:30 UTC. It is kept here as a record.
It is the 37th strongest of the 88 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 9 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued September 19 at 4:25PM EDT until September 19 at 5:30PM EDT by NWS Tampa Bay Ruskin FL
Urban PEI: 2,111,536 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- June 26, 2026 · score 52 · 4.0 km
- May 25, 2026 · score 52 · 4.4 km
- September 19, 2026 · score 46 · 4.8 km
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 46 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
Computed under scoring rules v5. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 46 / 100 |
| Legacy data-support index | 0.83/1 |
| Coordinates | 27.8991, -82.6036 |
| Nearest City | Pinellas Park (12 km) |
| Urban exposure index (PEI) | 2.1M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-19T20:25:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.073d6ad706a6278d263298c0dd43d057be98306a.001.1 |
Physical priority index · v5. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-09-19T20:25:00.000Z.
First archived: 2026-09-19T20:34:29.572Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
2026-09-19T21:23:25.698Z · data_change
Index 46 → 46; severity medium → medium; version 5 → 5.
2026-09-19T20:56:16.019Z · data_change
Index 46 → 46; severity medium → medium; version 5 → 5.
2026-09-19T20:45:30.202Z · data_change
Index 46 → 46; severity medium → medium; version 5 → 5.
2026-09-19T20:40:05.897Z · data_change
Index 46 → 46; severity medium → medium; version 5 → 5.
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Tampa Bay waters; Coastal waters from Englewood to Tarpon Springs FL out 20 NM |
| Headline | Special Marine Warning issued September 19 at 4:25PM EDT until September 19 at 5:30PM EDT by NWS Tampa Bay Ruskin FL |
| Expires | 2026-09-19T17:30:00-04:00 |
| SenderName | NWS Tampa Bay Ruskin FL |
| HasExactCoords | true |
| Iem TypeSummary | M |
| Iem Magnitude | 40 |
| Iem Unit | MPH |
| Iem City | 6 E Saint Petersburg |
| Iem County | GMZ830 |
| Iem State | FL |
| Iem Wfo | TBW |
| Iem Remark | Mesonet station XTAM Tampa Bay Cut J. |
| MergedSources | [{"id":"iem_E_28.010_-82.710_1789849740000","source":"iem","severity":"low","severityValue":25,"timestamp":1789849740000,"latitude":28.01,"longitude":-82.71},{"id":"iem_G_27.910_-82.690_1789849080000","source":"iem","severity":"low","severityValue":25,"timestamp":1789849080000,"latitude":27.91,"longitude":-82.69},{"id":"iem_M_27.860_-82.550_1789850160000","source":"iem","severity":"low","severityValue":25,"timestamp":1789850160000,"latitude":27.86,"longitude":-82.55},{"id":"iem_M_27.770_-82.570_1789850580000","source":"iem","severity":"low","severityValue":25,"timestamp":1789850580000,"latitude":27.77,"longitude":-82.57}] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Review the area, threshold and delivery channel in your account.
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