Calamity
MediumSevere WeatherCalamity Score: 22

Severe Weather in United States

CaddoUnited 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.

One other detection within 20 km in the last 24 hours, 22 km from here.

This alert expired on 10 May 2026 at 02:30 UTC. It is kept here as a record.

It is the 4th strongest of the 13 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Severe Thunderstorm Warning issued May 9 at 8:45PM CDT until May 9 at 9:30PM CDT by NWS Norman OK

Nearby, since 15 March 2026

How we know

Confirmed by 16 independent sources, including NOAA.

Our own score for this event is 22 out of 100, at 70 % 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 confidence70%
Coordinates35.3022, -98.5747
Nearest CityEl Reno (61 km)
Impact Tierminor
Timestamp2026-05-10T01:45:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.e1551382458833a7e641a931c0171d74

Score Breakdown

35
intensity
0
population
0
cascading
80
historical

Technical Details

EventSevere Thunderstorm Warning
UrgencyImmediate
CertaintyObserved
AreaDescCaddo, OK; Comanche, OK; Grady, OK; Caddo, OK; Comanche, OK; Grady, OK; McClain, OK; Stephens, OK; Beckham, OK; Greer, OK; Kiowa, OK; Washita, OK and 1 more areas
HeadlineSevere Thunderstorm Warning issued May 9 at 8:45PM CDT until May 9 at 9:30PM CDT by NWS Norman OK
Expires2026-05-09T21:30:00-05:00
SenderNameNWS Norman OK
HasExactCoordstrue
MergedCount4
MergedIds["noaa_urn:oid:2.49.0.1.840.0.e1551382458833a7e641a931c0171d7457af6f0f.001.1","noaa_urn:oid:2.49.0.1.840.0.1966715bdd8570d2292fd118c70a32cca83e6a12.001.1","noaa_urn:oid:2.49.0.1.840.0.7d130f7d90ca2ed791ef97375b79ac4393d59c1e.001.1","noaa_urn:oid:2.49.0.1.840.0.4a3d5201d9f30e2da3ad759d26518c4c55e534ee.001.1"]
Iem TypeSummaryH
Iem Magnitude1.5
Iem UnitInch
Iem CityBurns Flat
Iem CountyWashita
Iem StateOK
Iem WfoOUN
Iem RemarkReport from mPING: Ping Pong Ball (1.50 in.).
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_G_35.510_-98.780_1778371200000","source":"iem","severity":"low","severityValue":25,"timestamp":1778371200000,"latitude":35.51,"longitude":-98.78},{"id":"iem_G_35.510_-98.780_1778375100000","source":"iem","severity":"low","severityValue":25,"timestamp":1778375100000,"latitude":35.51,"longitude":-98.78},{"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_35.390_-99.120_1778368860000","source":"iem","severity":"low","severityValue":25,"timestamp":1778368860000,"latitude":35.39,"longitude":-99.12},{"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_G_35.510_-98.780_1778375400000","source":"iem","severity":"low","severityValue":25,"timestamp":1778375400000,"latitude":35.51,"longitude":-98.78},{"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_35.290_-99.190_1778371200000","source":"iem","severity":"low","severityValue":25,"timestamp":1778371200000,"latitude":35.29,"longitude":-99.19},{"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_35.370_-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}]

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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