Alert archive / California / Excessive Heat Warnings in 2018

Excessive Heat Warning 7, NWS San Diego, CA

August 9, 2018San Diego County, California

NWS San Diego, CA issued this excessive heat warning at Aug 9, 2018, 3:25 AM PDT for San Diego County, California. It was in force for 17 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 9, 2018, 3:25 AM PDT (10:25 UTC)
Expired
Aug 9, 2018, 8:00 PM PDT
In force
17 hr
Issued by
NWS San Diego, CA

County San Diego County, CA

The radar

The San Diego radar (KNKX), 28 km from the middle of the area, began a volume at 10:23 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.

The office that day

Everything else NWS San Diego, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 9, 2:32 PM PDTFlash Flood WarningSGXSan Bernardino3 hr
Aug 9, 2:46 PM PDTSevere Thunderstorm WarningSGXSan Bernardino59 min
Aug 9, 3:00 PM PDTFlash Flood WarningSGXSan Bernardino3 hr
Aug 9, 4:23 PM PDTSpecial Weather StatementSGX52 min

Nearby

Excessive Heat Warnings in California, 2018Every excessive heat warning in 2018

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.