Alert archive / Arizona / Excessive Heat Warnings in 2020

Excessive Heat Warning 3, NWS Phoenix, AZ

May 5, 20204 counties in Arizona; Imperial County, Riverside County, California

NWS Phoenix, AZ issued this excessive heat warning at May 5, 2020, 2:36 AM MST for 4 counties in Arizona; Imperial County, Riverside County, California. It took effect at May 6, 2020, 10:00 AM MST. It was in force for 34 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: May 5, 2020, 2:36 AM MST (09:36 UTC)
In effect from: May 6, 2020, 10:00 AM MST
Expired: May 7, 2020, 8:00 PM MST
In force: 34 hr
Issued by: NWS Phoenix, AZ

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

The radar

The Yuma radar (KYUX), 113 km from the middle of the area, began a volume at 09:35 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 excessive heat warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Phoenix, AZ wrote its last area forecast discussion before this excessive heat warning went out at May 5, 1:56 AM MST, 40 minutes earlier.

Area forecast discussion, May 5, 1:56 AM MST, 40 minutes before

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Nearby

Excessive Heat Warnings in Arizona, 2020 Excessive Heat Warnings in California, 2020 Every excessive heat warning in 2020

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.