Calamity
MediumSevere WeatherCS: 34 · v1

Severe Weather in United States

United StatesNOAA

Right now

The most recent data we hold from NOAA arrived 1 minute 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 6 June 2026 at 16:00 UTC. It is kept here as a record.

No stronger detection stands among the 129 recorded within 20 km of this point since 17 May 2026 — 105 others scored the same. The last comparable one was on 18 May 2026. 4 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Red Flag Warning issued June 6 at 2:54AM PDT until June 7 at 11:00PM PDT by NWS Las Vegas NV

Urban PEI: 15,345 within a heuristic 50 km radius; not unique people.

Nearby, since 17 May 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.

This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.

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
Legacy data-support index0.81/1
Coordinates34.0000, -111.1000
Nearest CityPayson (33 km)
Urban exposure index (PEI)15.3K within 50 km
Impact Tiersignificant
Timestamp2026-06-06T16:00:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Red Flag Warning_noaa_urn:oid:2.49.0.1.840.0.389d84c51881deae092d30f3b2cb1aa4

Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.

Source and revision timeline

Source: noaa. Occurrence: 2026-06-06T16:00:00.000Z.

First archived: 2026-06-06T15:44:20.903Z. Material modification: not recorded.

Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.

Score Breakdown

35
intensity
40
Urban PEI term
0
Scenario weight
80
Recorded reference / batch anomaly

Technical Details

EventRed Flag Warning
UrgencyExpected
CertaintyLikely
AreaDescLake Mead NRA/Colorado River-AZ side; Northwest Deserts/Northwest Plateau; Lake Mead NRA/Colorado River-NV side; Yuma/Martinez Lake and Vicinity/Lower Colorado River Valley AZ; Central Deserts; Lower Colorado River Valley CA
HeadlineRed Flag Warning issued June 6 at 2:54AM PDT until June 7 at 11:00PM PDT by NWS Las Vegas NV
Expires2026-06-06T09:00:00-07:00
SenderNameNWS Las Vegas NV
HasExactCoordsfalse
MergedCount2
MergedIds["noaa_urn:oid:2.49.0.1.840.0.389d84c51881deae092d30f3b2cb1aa43a4c1c44.001.1","noaa_urn:oid:2.49.0.1.840.0.d3ca61545da47a13720d2f188d0a6a3881e8366f.001.1"]

Safety Information

If a wildfire is approaching: follow evacuation orders immediately. Do not wait to see the fire. Close all windows and doors, remove combustible materials from around your home, and have an emergency go-bag ready. Air quality can deteriorate rapidly even at distance from the fire front — monitor local air quality advisories.

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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