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Atmospheric24 hoursmatched

Atmospheric: 69% chance of at least one NWS Severe-or-higher weather alert within 396 km of CA, United States in the next 24 hours.

Probability

69%

Interval

62–76%

Opens

2026-08-16 10:00 UTC

Closes

2026-08-17 10:00 UTC

Resolution rule

Fixed at publication time; this is what the outcome is graded against.

kind
event_in_window
domain
atmospheric
metric
severity
description
Resolves MATCHED when an outcome event in the atmospheric domain occurs between 2026-08-16T10:00:40.304Z and 2026-08-17T10:00:40.304Z, within 396 km of 35.2839, -114.8628, meeting or exceeding 62. Otherwise EXPIRED_MISS at window close.
min intensity
62

Outcome

Resolved matched on 2026-08-16 18:01 UTC with a match score of 1.00.

Matched "Extreme Heat Watch alert in AZ" (2026-08-16T17:45:00+00:00) with a match score of 1 (geo 1, intensity 1).

Evidence events: 3ef690f2-cb17-4a0a-a960-fdbc4a55e8c8

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Tremor publishes probabilities, not warnings, and is not an emergency service. For official alerts follow USGS, NOAA/NWS, NASA SWPC or your national authority.