Calamity
MediumSevere WeatherCalamity Score: 28

Severe Weather in United States

BriscoeUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 6 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.

8 other detections within 20 km in the last 24 hours, the nearest 2 km from here.

This alert expired on 11 September 2026 at 01:00 UTC. It is kept here as a record.

It is the 16th strongest of the 26 detections recorded within 20 km of this point since 15 May 2026. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Severe Thunderstorm Warning issued September 10 at 7:44PM CDT until September 10 at 8:00PM CDT by NWS Amarillo TX

An estimated 20,919 people live within 50 km of this point.

Nearby, since 15 May 2026

How we know

Confirmed by 3 independent sources, including NOAA.

Our own score for this event is 28 out of 100, at 91 % confidence.

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

Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.

Event Data

TypeSevere Weather
SeverityMedium
Calamity Score (ours)28 / 100
Our confidence91%
Coordinates34.3831, -101.4607
Nearest CityPlainview (32 km)
Population Exposed20.9K within 50 km
Impact Tiersignificant
Timestamp2026-09-11T00:44:00.000Z
Sourcehttps://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.282115366567540842772e1ea45c5ab58c772bdd.001.1

Score Breakdown

35
intensity
40
population
0
cascading
18
historical

Technical Details

EventSevere Thunderstorm Warning
UrgencyImmediate
CertaintyObserved
AreaDescArmstrong, TX; Floyd, TX; Hale, TX; Briscoe, TX; Floyd, TX; Hale, TX; Swisher, TX
HeadlineSevere Thunderstorm Warning issued September 10 at 7:44PM CDT until September 10 at 8:00PM CDT by NWS Amarillo TX
Expires2026-09-10T20:00:00-05:00
SenderNameNWS Amarillo TX
HasExactCoordstrue
MergedCount3
MergedIds["noaa_urn:oid:2.49.0.1.840.0.282115366567540842772e1ea45c5ab58c772bdd.001.1","noaa_urn:oid:2.49.0.1.840.0.facc93ec262f3c20ad0987dbb7c62a2ff3dc8803.001.1","noaa_urn:oid:2.49.0.1.840.0.f0e67de5a5ef25a829ba5852bae6145527da5823.001.1"]
Spc ReportTypewind
Spc Speed65
Spc Location1 S Plainview
Spc CountyHale
Spc StateTX
Spc Comments(LUB)
Iem TypeSummaryG
Iem Magnitude65
Iem UnitMPH
Iem City1 S Plainview

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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