Alert archive / Arizona / Excessive Heat Warnings in 2018

Excessive Heat Warning 4, NWS Phoenix, AZ

June 11, 20185 counties in Arizona; Imperial County, Riverside County, San Bernardino County, California

NWS Phoenix, AZ issued this excessive heat warning at Jun 11, 2018, 1:46 PM MST for 5 counties in Arizona; Imperial County, Riverside County, San Bernardino County, California. It took effect at Jun 12, 2018, 11:00 AM MST. It was in force for 33 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
Jun 11, 2018, 1:46 PM MST (20:46 UTC)
In effect from
Jun 12, 2018, 11:00 AM MST
Expired
Jun 13, 2018, 8:00 PM MST
In force
33 hr
Issued by
NWS Phoenix, AZ

Counties Gila County, AZ, La Paz County, AZ, Maricopa County, AZ, Pinal County, AZ, Yuma County, AZ, Imperial County, CA, Riverside County, CA, San Bernardino County, CA

The radar

The Yuma radar (KYUX), 142 km from the middle of the area, began a volume at 20:44 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 Phoenix, AZ issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 11, 2:44 AM MSTExcessive Heat WatchPSRGila, Maricopa11 hr

Nearby

Excessive Heat Warnings in Arizona, 2018Excessive 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.