Alert archive / Arizona / Excessive Heat Warnings in 2022

Excessive Heat Warning 4, NWS Tucson, AZ

July 20, 20224 counties in Arizona

NWS Tucson, AZ issued this excessive heat warning at Jul 20, 2022, 1:54 PM MST for 4 counties in Arizona. It took effect at Jul 22, 2022, 11:00 AM MST. It was in force for 9 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: Jul 20, 2022, 1:54 PM MST (20:54 UTC)
In effect from: Jul 22, 2022, 11:00 AM MST
Expired: Jul 22, 2022, 8:00 PM MST
In force: 9 hr
Issued by: NWS Tucson, AZ

Counties Graham County, AZ, Greenlee County, AZ, Pima County, AZ, Pinal County, AZ

The radar

The Tucson radar (KEMX), 100 km from the middle of the area, began a volume at 20:57 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 Tucson, AZ wrote its last area forecast discussion before this excessive heat warning went out at Jul 20, 8:57 AM MST, 4 hours 57 minutes earlier.

Area forecast discussion, Jul 20, 8:57 AM MST, 4 hours 57 minutes before

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In the hours before

Special weather statement, Jul 20, 12:51 PM MST, 1 hour 3 minutes before

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Special weather statement, Jul 20, 1:31 PM MST, 23 minutes before

Special Weather Statement
National Weather Service Tucson AZ
131 PM MST Wed Jul 20 2022

AZZ509-510-202115-
Upper Gila River and Aravaipa Valleys including Clifton/Safford-White
Mountains of Graham and Greenlee Counties including Hannagan Meadow-
131 PM MST Wed Jul 20 2022

...A strong thunderstorm will impact portions of north central Graham
and northern Greenlee Counties through 215 PM MST...

At 131 PM MST, Doppler radar was tracking a strong thunderstorm 17
miles south of Hannagan Meadow, or 24 miles north of Clifton, moving
south at 15 mph.

HAZARD...Winds in excess of 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Rose Peak.

This includes Route 191 between mile markers 179 and 217.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3310 10968 3353 10958 3351 10905 3317 10905
TIME...MOT...LOC 2031Z 355DEG 11KT 3339 10933

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

AWH

The office that day

Everything else NWS Tucson, AZ issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 19, 5:15 PM MST	Special Weather Statement	TWC	Cochise	45 min
Jul 19, 5:20 PM MST	Severe Thunderstorm Warning	TWC	Cochise	40 min
Jul 19, 5:34 PM MST	Severe Thunderstorm Warning	TWC	Cochise	41 min
Jul 19, 5:50 PM MST	Special Weather Statement	TWC		40 min
Jul 19, 6:30 PM MST	Severe Thunderstorm Warning	TWC	Cochise	45 min
Jul 19, 6:38 PM MST	Special Weather Statement	TWC	Santa Cruz	37 min
Jul 19, 6:53 PM MST	Severe Thunderstorm Warning	TWC	Cochise	52 min
Jul 19, 7:27 PM MST	Special Weather Statement	TWC		48 min
Jul 19, 7:52 PM MST	Severe Thunderstorm Warning	TWC	Cochise, Santa Cruz	53 min
Jul 19, 8:04 PM MST	Flash Flood Warning Considerable damage threat	TWC	Cochise, Santa Cruz	116 min
Jul 19, 8:47 PM MST	Special Weather Statement	TWC	Santa Cruz	43 min
Jul 19, 8:58 PM MST	Severe Thunderstorm Warning	TWC	Santa Cruz	32 min
Jul 20, 12:51 PM MST	Special Weather Statement	TWC	Greenlee	39 min
Jul 20, 1:31 PM MST	Special Weather Statement	TWC	Greenlee	44 min
Jul 20, 2:15 PM MST	Special Weather Statement	TWC	Graham, Greenlee	45 min
Jul 20, 2:59 PM MST	Special Weather Statement	TWC	Graham	46 min
Jul 20, 3:44 PM MST	Special Weather Statement	TWC	Greenlee	46 min

Nearby

Excessive Heat Warnings in Arizona, 2022 Every excessive heat warning in 2022

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.