Right now
The most recent data we hold from NOAA arrived 1 minute ago, and this point is in it.
One other detection within 20 km in the last 24 hours, <1 km from here.
This alert is in force until 10 September 2026, 12:00 UTC.
It is the 107th strongest of the 122 detections recorded within 20 km of this point since 17 May 2026. The last comparable one was on 29 August 2026. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Extreme Heat Warning issued September 9 at 3:14PM 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 80 % 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 | 80% |
| 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.e30eb6d73ddbef4e05294c2922b99880c92ec22a.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 3:14PM PDT until September 10 at 8:00PM PDT by NWS Las Vegas NV |
| Expires | 2026-09-10T05:00:00-07:00 |
| 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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