Calamity
MediumSevere WeatherCalamity Score: 43

Severe Weather in United States

FanninUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 2 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.