Calamity
MediumSevere WeatherCalamity Score: 34

Severe Weather in United States

ShermanUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 9 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.

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