Right now
The most recent data we hold from NOAA arrived 6 minutes ago, and this point is in it.
One other detection within 20 km in the last 24 hours, 2 km from here.
This alert is in force until 21 September 2026, 19:45 UTC.
It is the 87th strongest of the 94 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 7 July 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 21 at 1:39PM CDT until September 21 at 2:45PM CDT by NWS Fort Worth TX
Urban PEI: 121,988 within a heuristic 50 km radius; not unique people.
Nearby, since 15 March 2026
- September 21, 2026 · score 37 · 1.8 km
- March 16, 2026 · score 49 · 18.9 km
- March 15, 2026 · score 49 · 18.9 km
How we know
3 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 37 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) | 37 / 100 |
| Legacy data-support index | 0.91/1 |
| Coordinates | 31.9743, -95.2741 |
| Nearest City | Palestine (41 km) |
| Urban exposure index (PEI) | 122.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-21T18:39:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.37f00bdf558a1d0457a1751c5f39505b310a9e1f.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: 2026-09-21T18:39:00.000Z.
First archived: 2026-09-21T18:41:47.730Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Freestone, TX; Navarro, TX; Panola, TX; Rusk, TX |
| Headline | Severe Thunderstorm Warning issued September 21 at 1:39PM CDT until September 21 at 2:45PM CDT by NWS Fort Worth TX |
| Expires | 2026-09-21T14:45:00-05:00 |
| SenderName | NWS Fort Worth TX |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.37f00bdf558a1d0457a1751c5f39505b310a9e1f.001.1","noaa_urn:oid:2.49.0.1.840.0.a6a3a587266903da6eb6dffc0c39a83ade5fdb95.001.1"] |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | 3 ESE Winona |
| Spc County | Smith |
| Spc State | TX |
| Spc Comments | 911 Dispatch reported a large tree down on FM 16 East close to the intersection of County Road 363 near the town of Starrville. (SHV) |
| Iem TypeSummary | D |
| Iem City | 3 ESE Winona |
| Iem County | Smith |
| Iem State | TX |
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.
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