Calamity
MediumSevere WeatherCalamity Score: 34

Severe Weather in United States

CaddoUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 29 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 10 May 2026 at 02:30 UTC. It is kept here as a record.

No stronger detection stands among the 18 recorded within 20 km of this point since 10 May 2026 — 3 others scored the same. Another comparable one was recorded here earlier the same day. 6 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Severe Thunderstorm Warning issued May 9 at 9:16PM CDT until May 9 at 9:30PM CDT by NWS Norman OK

An estimated 18,516 people live within 50 km of this point.

Nearby, since 10 May 2026

How we know

Confirmed by 16 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%
Coordinates35.4501, -98.4060
Nearest CityEl Reno (41 km)
Population Exposed18.5K within 50 km
Impact Tiersignificant
Timestamp2026-05-10T02:16:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.f5aa1f165fdd1e3c94c5fcfb56d57e92

Score Breakdown

35
intensity
40
population
0
cascading
80
historical

Technical Details

EventSevere Thunderstorm Warning
UrgencyImmediate
CertaintyObserved
AreaDescCaddo, OK; Comanche, OK; Grady, OK; Kiowa, OK; Washita, OK; Alfalfa, OK; Blaine, OK; Dewey, OK; Garfield, OK; Grant, OK; Kay, OK; Kingfisher, OK; Major, OK; Woods, OK
HeadlineSevere Thunderstorm Warning issued May 9 at 9:16PM CDT until May 9 at 9:30PM CDT by NWS Norman OK
Expires2026-05-09T21:30:00-05:00
SenderNameNWS Norman OK
HasExactCoordstrue
MergedCount3
MergedIds["noaa_urn:oid:2.49.0.1.840.0.f5aa1f165fdd1e3c94c5fcfb56d57e924c5e8612.001.1","noaa_urn:oid:2.49.0.1.840.0.4a0c3e1d13cb7b6c5e5f00b7dc4ec805464d8abd.001.1","noaa_urn:oid:2.49.0.1.840.0.8d1769cd646fba7134f4fe7c9d69a2a8a06022eb.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_H_35.100_-98.750_1778375400000","source":"iem","severity":"low","severityValue":25,"timestamp":1778375400000,"latitude":35.1,"longitude":-98.75},{"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_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_35.100_-98.760_1778375400000","source":"iem","severity":"low","severityValue":25,"timestamp":1778375400000,"latitude":35.1,"longitude":-98.76},{"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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