Calamity
MediumSevere WeatherCalamity Score: 22

Severe Weather in United States

CusterUnited StatesNOAA

This alert expired on 10 May 2026 at 01:45 UTC. It is kept here as a record.

No stronger detection stands among the 21 recorded within 20 km of this point since 31 March 2026 — 12 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 May 9 at 8:24PM CDT until May 9 at 8:45PM CDT by NWS Norman OK

Nearby, since 31 March 2026

How we know

Confirmed by 29 independent sources, including NOAA.

Our own score for this event is 22 out of 100, at 71 % 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)22 / 100
Our confidence71%
Coordinates35.6172, -99.2300
Nearest CityAltus (109 km)
Impact Tierminor
Timestamp2026-05-10T01:24:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.126358c7f5e15f0a9fd8cafafbfe5ac5

Score Breakdown

35
intensity
0
population
0
cascading
80
historical

Technical Details

EventSevere Thunderstorm Warning
UrgencyImmediate
CertaintyObserved
AreaDescCaddo, OK; Comanche, OK; Kiowa, OK; Washita, OK; Alfalfa, OK; Ellis, OK; Harper, OK; Major, OK; Woods, OK; Woodward, OK; Beckham, OK; Greer, OK; Kiowa, OK; Washita, OK and 2 more areas
HeadlineSevere Thunderstorm Warning issued May 9 at 8:24PM CDT until May 9 at 8:45PM CDT by NWS Norman OK
Expires2026-05-09T20:45:00-05:00
SenderNameNWS Norman OK
HasExactCoordstrue
MergedCount5
MergedIds["noaa_urn:oid:2.49.0.1.840.0.126358c7f5e15f0a9fd8cafafbfe5ac5b72cd588.001.1","noaa_urn:oid:2.49.0.1.840.0.52f771e137c5763f35c040158e64ab39755de92f.001.1","noaa_urn:oid:2.49.0.1.840.0.15715aea847222453443e0f2bad503032118fc94.001.1","noaa_urn:oid:2.49.0.1.840.0.5617218a2cf7786f58ee49bfc0da927ff2054493.002.1","noaa_urn:oid:2.49.0.1.840.0.2108d4ef2cf51c5db9b8e281128e95a1e3d8d31d.002.1"]
Iem TypeSummaryH
Iem Magnitude1.75
Iem UnitInch
Iem City2 WSW Sayre
Iem CountyBeckham
Iem StateOK
Iem WfoOUN
Iem RemarkLocation is approximate.
MergedSources[{"id":"iem_H_35.320_-99.160_1778370900000","source":"iem","severity":"low","severityValue":25,"timestamp":1778370900000,"latitude":35.32,"longitude":-99.16},{"id":"iem_G_35.480_-98.480_1778372400000","source":"iem","severity":"low","severityValue":25,"timestamp":1778372400000,"latitude":35.48,"longitude":-98.48},{"id":"iem_H_35.170_-98.920_1778373420000","source":"iem","severity":"low","severityValue":25,"timestamp":1778373420000,"latitude":35.17,"longitude":-98.92},{"id":"iem_H_35.400_-99.470_1778368680000","source":"iem","severity":"low","severityValue":25,"timestamp":1778368680000,"latitude":35.4,"longitude":-99.47},{"id":"iem_G_35.510_-98.780_1778371200000","source":"iem","severity":"low","severityValue":25,"timestamp":1778371200000,"latitude":35.51,"longitude":-98.78},{"id":"iem_H_35.380_-99.520_1778365800000","source":"iem","severity":"low","severityValue":25,"timestamp":1778365800000,"latitude":35.38,"longitude":-99.52},{"id":"iem_H_35.410_-99.680_1778364900000","source":"iem","severity":"low","severityValue":25,"timestamp":1778364900000,"latitude":35.41,"longitude":-99.68},{"id":"iem_H_35.400_-99.470_1778368320000","source":"iem","severity":"low","severityValue":25,"timestamp":1778368320000,"latitude":35.4,"longitude":-99.47},{"id":"iem_H_35.360_-99.200_1778368200000","source":"iem","severity":"low","severityValue":25,"timestamp":1778368200000,"latitude":35.36,"longitude":-99.2},{"id":"iem_H_35.370_-99.400_1778367420000","source":"iem","severity":"low","severityValue":25,"timestamp":1778367420000,"latitude":35.37,"longitude":-99.4},{"id":"iem_H_35.390_-99.120_1778368860000","source":"iem","severity":"low","severityValue":25,"timestamp":1778368860000,"latitude":35.39,"longitude":-99.12},{"id":"iem_H_35.410_-99.420_1778368440000","source":"iem","severity":"low","severityValue":25,"timestamp":1778368440000,"latitude":35.41,"longitude":-99.42},{"id":"iem_H_35.410_-99.910_1778372220000","source":"iem","severity":"low","severityValue":25,"timestamp":1778372220000,"latitude":35.41,"longitude":-99.91},{"id":"iem_H_35.410_-99.480_1778368800000","source":"iem","severity":"low","severityValue":25,"timestamp":1778368800000,"latitude":35.41,"longitude":-99.48},{"id":"iem_H_35.360_-99.310_1778367420000","source":"iem","severity":"low","severityValue":25,"timestamp":1778367420000,"latitude":35.36,"longitude":-99.31},{"id":"iem_H_35.360_-99.360_1778367720000","source":"iem","severity":"low","severityValue":25,"timestamp":1778367720000,"latitude":35.36,"longitude":-99.36},{"id":"iem_H_35.300_-98.990_1778372220000","source":"iem","severity":"low","severityValue":25,"timestamp":1778372220000,"latitude":35.3,"longitude":-98.99},{"id":"iem_H_35.410_-99.430_1778368800000","source":"iem","severity":"low","severityValue":25,"timestamp":1778368800000,"latitude":35.41,"longitude":-99.43},{"id":"iem_H_35.410_-99.440_1778368740000","source":"iem","severity":"low","severityValue":25,"timestamp":1778368740000,"latitude":35.41,"longitude":-99.44},{"id":"iem_H_35.290_-99.190_1778371200000","source":"iem","severity":"low","severityValue":25,"timestamp":1778371200000,"latitude":35.29,"longitude":-99.19},{"id":"iem_H_35.390_-99.510_1778365920000","source":"iem","severity":"low","severityValue":25,"timestamp":1778365920000,"latitude":35.39,"longitude":-99.51},{"id":"iem_H_35.290_-98.990_1778372100000","source":"iem","severity":"low","severityValue":25,"timestamp":1778372100000,"latitude":35.29,"longitude":-98.99},{"id":"iem_H_35.390_-99.510_1778366040000","source":"iem","severity":"low","severityValue":25,"timestamp":1778366040000,"latitude":35.39,"longitude":-99.51},{"id":"iem_H_35.300_-99.640_1778374260000","source":"iem","severity":"low","severityValue":25,"timestamp":1778374260000,"latitude":35.3,"longitude":-99.64},{"id":"iem_H_35.410_-99.700_1778364600000","source":"iem","severity":"low","severityValue":25,"timestamp":1778364600000,"latitude":35.41,"longitude":-99.7},{"id":"iem_H_35.370_-98.980_1778370180000","source":"iem","severity":"low","severityValue":25,"timestamp":1778370180000,"latitude":35.37,"longitude":-98.98},{"id":"iem_H_35.350_-99.180_1778368620000","source":"iem","severity":"low","severityValue":25,"timestamp":1778368620000,"latitude":35.35,"longitude":-99.18},{"id":"iem_H_35.290_-99.680_1778374320000","source":"iem","severity":"low","severityValue":25,"timestamp":1778374320000,"latitude":35.29,"longitude":-99.68}]

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 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.