Alert archive / California / Heat Advisories in 2025
Heat Advisory 1, NWS Eureka, CA
NWS Eureka, CA issued this heat advisory at May 27, 2025, 1:38 PM PDT for 4 counties in California. It took effect at May 30, 2025, 11:00 AM PDT. It was in force for 35 hr.
The area
The counties it named.
The facts
- Issued
- May 27, 2025, 1:38 PM PDT (20:38 UTC)
- In effect from
- May 30, 2025, 11:00 AM PDT
- Expired
- May 31, 2025, 10:00 PM PDT
- In force
- 35 hr
- Issued by
- NWS Eureka, CA
Counties Humboldt County, CA, Lake County, CA, Mendocino County, CA, Trinity County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 102 km from the middle of the area, began a volume at 20:39 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What forecasters said that day
The local office's own words before this heat advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Eureka, CA wrote its last area forecast discussion before this heat advisory went out at May 27, 1:10 PM PDT, 28 minutes earlier.
Area forecast discussion, May 27, 1:10 PM PDT, 28 minutes before
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Heat Advisories in California, 2025Every heat advisory in 2025
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.