Alert archive / Arizona / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 133, NWS Tucson, AZ

August 31, 2023Pima County, Pinal County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Aug 31, 2023, 7:09 PM MST for Pima County, Pinal County, Arizona. It was in force for 51 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: Aug 31, 2023, 7:09 PM MST (02:09 UTC)
Expired: Aug 31, 2023, 8:00 PM MST
In force: 51 min
Issued by: NWS Tucson, AZ
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Pima County, AZ, Pinal County, AZ

The radar

The Phoenix radar (KIWA), 88 km from the middle of the area, began a volume at 02:11 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.

In the hours before

Special weather statement, Aug 31, 5:15 PM MST, 1 hour 54 minutes before

Special Weather Statement
National Weather Service Tucson AZ
515 PM MST Thu Aug 31 2023

AZZ504-506-514-010100-
Santa Catalina and Rincon Mountains including Mount
Lemmon/Summerhaven-Southeast Pinal County including
Kearny/Mammoth/Oracle-Tucson Metro Area including Tucson/Green
Valley/Marana/Vail-
515 PM MST Thu Aug 31 2023

...A strong thunderstorm will impact portions of northeastern Pima
and southeastern Pinal Counties through 600 PM MST...

At 515 PM MST, Doppler radar was tracking a strong thunderstorm near
Catalina State Park, or near Catalina, moving west at 5 mph.

HAZARD...Wind gusts up to 50 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...
Catalina, Oro Valley, Casas Adobes, Saddlebrooke, Tortolita, Catalina
State Park and Catalina Foothills.

This includes Route 77 between mile markers 75 and 89.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3252 11080 3238 11080 3233 11101 3255 11100
TIME...MOT...LOC 0015Z 090DEG 5KT 3244 11087

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

KJS

Local storm report, Aug 31, 6:02 PM MST, 1 hour 7 minutes before

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Local storm report, Aug 31, 6:03 PM MST, 1 hour 6 minutes before

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Special weather statement, Aug 31, 6:27 PM MST, 42 minutes before

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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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Local storm report, Aug 31, 6:32 PM MST, 37 minutes before

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<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
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      <h1 id="headline">This service is currently unavailable.</h1>
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Local storm report, Aug 31, 6:33 PM MST, 36 minutes before

Preliminary Local Storm Report
National Weather Service Tucson AZ
633 PM MST Thu Aug 31 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0600 PM     Tstm Wnd Gst     9 SE Marana             32.30N 111.08W
08/31/2023  M64 MPH          Pima               AZ   Public

            Corrects previous tstm wnd gst report from 9
            SE Marana. Report of 64 MPH wind gust.

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 31, 5:15 PM MST	Special Weather Statement	TWC		45 min
Aug 31, 5:18 PM MST	Severe Thunderstorm Warning	TWC	Pima	42 min
Aug 31, 5:29 PM MST	Areal Flood Advisory	TWC	Pima	3 hr
Aug 31, 5:43 PM MST	Severe Thunderstorm Warning	TWC	Pima	47 min
Aug 31, 5:47 PM MST	Severe Thunderstorm Warning	TWC	Pima, Pinal	43 min
Aug 31, 5:53 PM MST	Severe Thunderstorm Warning	TWC	Pima	52 min
Aug 31, 5:59 PM MST	Severe Thunderstorm Warning	TWC	Pima	46 min
Aug 31, 6:27 PM MST	Special Weather Statement	TWC	Pinal	63 min
Aug 31, 6:42 PM MST	Severe Thunderstorm Warning	TWC	Pima, Pinal	48 min
Aug 31, 6:43 PM MST	Severe Thunderstorm Warning	TWC	Pima	47 min
Aug 31, 7:02 PM MST	Dust Storm Warning	TWC	Pima, Pinal	58 min
Aug 31, 7:36 PM MST	Areal Flood Advisory	TWC	Pima, Pinal	114 min
Sep 1, 2:04 PM MST	Special Weather Statement	TWC		41 min
Sep 1, 2:42 PM MST	Special Weather Statement	TWC	Graham	48 min

Nearby

Severe Thunderstorm Warnings in Arizona, 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.