Alert archive / Arizona / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 10, NWS Phoenix, AZ

March 15, 2023La Paz County, Yuma County, Arizona; Imperial County, California

NWS Phoenix, AZ issued this severe thunderstorm warning at Mar 15, 2023, 4:26 PM MST for La Paz County, Yuma County, Arizona; Imperial County, California. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Mar 15, 2023, 4:26 PM MST (23:26 UTC)
Expired: Mar 15, 2023, 5:00 PM MST
In force: 34 min
Issued by: NWS Phoenix, AZ
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties La Paz County, AZ, Yuma County, AZ, Imperial County, CA

The radar

The Yuma radar (KYUX), 79 km from the middle of the area, began a volume at 23:29 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 severe thunderstorm 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 severe thunderstorm warning went out at Mar 15, 2:45 PM MST, 1 hour 41 minutes earlier.

Area forecast discussion, Mar 15, 2:45 PM MST, 1 hour 41 minutes before

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In the hours before

Special weather statement, Mar 15, 4:05 PM MST, 21 minutes before

Special Weather Statement
National Weather Service Phoenix AZ
405 PM PDT Wed Mar 15 2023

CAZ564-565-567-569-152345-
Chuckwalla Mountains CA-Imperial County Southeast CA-
Palo Verde Valley CA-Imperial Valley CA-
405 PM PDT Wed Mar 15 2023

...A strong thunderstorm will impact portions of northeastern
Imperial and Riverside Counties through 445 PM PDT...

At 405 PM PDT, Doppler radar was tracking a strong thunderstorm 16
miles northeast of Brawley, moving northeast at 25 mph.

HAZARD...Winds in excess of 40 mph and half inch hail.

SOURCE...Radar indicated.

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

This storm will remain over mainly rural areas of northeastern
Imperial and Riverside Counties.

This includes CA Route 78 between mile markers 62 and 65.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a beuilding.

&&

LAT...LON 3306 11539 3322 11549 3351 11494 3322 11480
TIME...MOT...LOC 2305Z 243DEG 23KT 3318 11536

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

Heil

Special weather statement, Mar 15, 4:18 PM MST, 8 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 14, 8:05 PM MST	Areal Flood Warning	PSR	Maricopa	38 days
Mar 15, 4:18 PM MST	Special Weather Statement	PSR		42 min
Mar 15, 4:29 PM MST	Special Weather Statement	PSR		46 min
Mar 15, 4:51 PM MST	Severe Thunderstorm Warning	PSR	Yuma	39 min
Mar 15, 4:55 PM MST	Special Weather Statement	PSR	Yuma	50 min
Mar 15, 4:58 PM MST	Special Weather Statement	PSR	La Paz	47 min
Mar 15, 4:05 PM MST	Special Weather Statement	PSR	Imperial	40 min

Nearby

Severe Thunderstorm Warnings in Arizona, 2023 Severe Thunderstorm Warnings in California, 2023 Every severe thunderstorm warning in 2023

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.