Calamity
MediumSevere WeatherCalamity Score: 34

Severe Weather in United States

ShermanUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 12 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 7 August 2026 at 07:30 UTC. It is kept here as a record.

No stronger detection stands among the 9 recorded within 20 km of this point since 15 March 2026 — 2 others scored the same. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Severe Thunderstorm Warning issued August 7 at 1:26AM CDT until August 7 at 2:30AM CDT by NWS Amarillo TX

An estimated 15,001 people live within 50 km of this point.

How we know

Confirmed by 6 independent sources, including NOAA.

Our own score for this event is 34 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 v1. Rows carrying other versions were judged by different rules and are not directly comparable.

Event Data

TypeSevere Weather
SeverityMedium
Calamity Score (ours)34 / 100
Our confidence91%
Coordinates36.2633, -101.8225
Nearest CityDumas (46 km)
Population Exposed15.0K within 50 km
Impact Tiersignificant
Timestamp2026-08-07T06:26:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.72f0b89b83e7c746dc09ebe88cd1e7d2

Score Breakdown

35
intensity
40
population
0
cascading
80
historical

Technical Details

EventSevere Thunderstorm Warning
UrgencyImmediate
CertaintyObserved
AreaDescDallam, TX; Hartley, TX; Hansford, TX; Ochiltree, TX
HeadlineSevere Thunderstorm Warning issued August 7 at 1:26AM CDT until August 7 at 2:30AM CDT by NWS Amarillo TX
Expires2026-08-07T02:30:00-05:00
SenderNameNWS Amarillo TX
HasExactCoordstrue
MergedCount2
MergedIds["noaa_urn:oid:2.49.0.1.840.0.72f0b89b83e7c746dc09ebe88cd1e7d218cbdb65.002.1","noaa_urn:oid:2.49.0.1.840.0.31f224568c22d7c9ef069dcde2705d9387c58aef.001.1"]
Iem TypeSummaryN
Iem Magnitude70
Iem UnitMPH
Iem City1 WSW Guymon
Iem CountyTexas
Iem StateOK
Iem WfoAMA
Iem RemarkASOS station KGUY Guymon (ASOS).
MergedSources[{"id":"iem_G_36.360_-101.180_1786080840000","source":"iem","severity":"low","severityValue":25,"timestamp":1786080840000,"latitude":36.36,"longitude":-101.18},{"id":"iem_G_36.600_-101.600_1786079400000","source":"iem","severity":"low","severityValue":25,"timestamp":1786079400000,"latitude":36.6,"longitude":-101.6},{"id":"iem_G_36.360_-102.130_1786077780000","source":"iem","severity":"low","severityValue":25,"timestamp":1786077780000,"latitude":36.36,"longitude":-102.13},{"id":"iem_G_36.360_-101.180_1786080000000","source":"iem","severity":"low","severityValue":25,"timestamp":1786080000000,"latitude":36.36,"longitude":-101.18},{"id":"iem_N_36.680_-101.500_1786082400000","source":"iem","severity":"low","severityValue":25,"timestamp":1786082400000,"latitude":36.68,"longitude":-101.5}]

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.

Want to know when something happens in this area?

Share:XLinkedIn