Right now
The most recent data we hold from NOAA arrived 51 minutes ago, and this point is in it.
Nothing else has been detected within 20 km in the last 24 hours.
This alert is in force until 9 September 2026, 22:00 UTC.
It is the 107th strongest of the 121 detections recorded within 20 km of this point since 17 May 2026. The last comparable one was on 29 August 2026. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Extreme Heat Warning issued September 9 at 4:24AM PDT until September 10 at 8:00PM PDT by NWS Las Vegas NV
An estimated 15,345 people live within 50 km of this point.
Nearby, since 17 May 2026
- August 27, 2026 · score 34 · 0.0 km
- August 11, 2026 · score 34 · 0.0 km
- August 10, 2026 · score 34 · 0.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 28 out of 100, at 82 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 28 / 100 |
| Our confidence | 82% |
| Coordinates | 34.0000, -111.1000 |
| Nearest City | Payson (33 km) |
| Population Exposed | 15.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-10T17:00:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.5040fe6dd4902c8d8f7ac33c142bf9a3c96a224a.001.1 |
Score Breakdown
Technical Details
| Event | Extreme Heat Warning |
| Urgency | Expected |
| Certainty | Likely |
| AreaDesc | Lake Havasu and Fort Mohave; Lake Mead - AZ side; Lake Mohave - AZ side; Northwest Deserts; Death Valley National Park; Cadiz Basin; San Bernardino County-Upper Colorado River Valley; Northeast Clark County; Western Clark and Southern Nye County; Las Vegas Valley; Lake Mead - NV side; Lake Mohave - NV side |
| Headline | Extreme Heat Warning issued September 9 at 4:24AM PDT until September 10 at 8:00PM PDT by NWS Las Vegas NV |
| Expires | 2026-09-09T15:00:00-07:00 |
| SenderName | NWS Las Vegas NV |
| HasExactCoords | false |
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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