Calamity
MediumSevere WeatherCalamity Score: 34

Severe Weather in United States

SheridanUnited 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.

Nothing else has been detected within 20 km in the last 24 hours.

This alert expired on 9 July 2026 at 01:36 UTC. It is kept here as a record.

No stronger detection stands among the 40 recorded within 20 km of this point since 21 March 2026 — 19 others scored the same. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Flash Flood Warning issued July 8 at 7:26PM MDT until July 8 at 7:30PM MDT by NWS Billings MT

An estimated 17,873 people live within 50 km of this point.

Nearby, since 21 March 2026

How we know

One source: NOAA. Not yet confirmed by a second, independent source.

Our own score for this event is 34 out of 100, at 80 % 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 confidence80%
Coordinates44.8724, -107.4295
Nearest CitySheridan (38 km)
Population Exposed17.9K within 50 km
Impact Tiersignificant
Timestamp2026-07-09T01:26:00.000Z
Sourcehttps://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.a1fdc87ba421e731b9038b914d313abff0eebd76.001.1

Score Breakdown

35
intensity
40
population
0
cascading
80
historical

Technical Details

EventFlash Flood Warning
UrgencyImmediate
CertaintyLikely
AreaDescSheridan, WY
HeadlineFlash Flood Warning issued July 8 at 7:26PM MDT until July 8 at 7:30PM MDT by NWS Billings MT
Expires2026-07-08T19:36:00-06:00
SenderNameNWS Billings MT
HasExactCoordstrue

Safety Information

During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.

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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