Calamity
MediumSevere WeatherCalamity Score: 43

Severe Weather in United States

FanninUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 13 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.

Nothing else has been detected within 20 km in the last 24 hours.

This alert expired on 10 May 2026 at 09:15 UTC. It is kept here as a record.

It is the 7th strongest of the 17 detections recorded within 20 km of this point since 26 April 2026. The last comparable one was on 26 April 2026. 6 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Severe Thunderstorm Warning issued May 10 at 3:09AM CDT until May 10 at 4:15AM CDT by NWS Fort Worth TX

An estimated 253,230 people live within 50 km of this point.

Nearby, since 26 April 2026

How we know

One source: NOAA. Not yet confirmed by a second, independent source.

Our own score for this event is 43 out of 100, at 80 % confidence.

The score is ours, computed from intensity, exposed population and local history — not the source’s.

Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.

Event Data

TypeSevere Weather
SeverityMedium
Calamity Score (ours)43 / 100
Our confidence80%
Coordinates33.4890, -96.2577
Nearest CitySherman (37 km)
Population Exposed253.2K within 50 km
Impact Tiersignificant
Timestamp2026-05-10T08:09:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.94a791176a69896703d442fcd17f92e9

Score Breakdown

35
intensity
70
population
0
cascading
80
historical

Technical Details

EventSevere Thunderstorm Warning
UrgencyImmediate
CertaintyObserved
AreaDescCooke, TX; Grayson, TX; Grayson, TX; Bowie, TX; Franklin, TX; Red River, TX; Titus, TX
HeadlineSevere Thunderstorm Warning issued May 10 at 3:09AM CDT until May 10 at 4:15AM CDT by NWS Fort Worth TX
Expires2026-05-10T04:15:00-05:00
SenderNameNWS Fort Worth TX
HasExactCoordstrue
MergedCount3
MergedIds["noaa_urn:oid:2.49.0.1.840.0.94a791176a69896703d442fcd17f92e98cc817b6.001.1","noaa_urn:oid:2.49.0.1.840.0.2c79cd27dcd033dfdbbd3fd0cef7ada6ad5e6b42.001.1","noaa_urn:oid:2.49.0.1.840.0.6d5d0c763093deb90603ba1db3afafe7b4f9d130.001.1"]

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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Calamity.live data shows a weather event with CalamityScore 43/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.