Alert archive / Arizona / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 177, NWS Tucson, AZ

August 10, 2026Graham County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Aug 10, 2026, 9:23 PM MST for Graham County, Arizona. It was in force for 52 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 10, 2026, 9:23 PM MST (04:23 UTC)
Expired: Aug 10, 2026, 10:15 PM MST
In force: 52 min
Issued by: NWS Tucson, AZ
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

County Graham County, AZ

The radar

The Tucson radar (KEMX), 135 km from the middle of the area, began a volume at 04:26 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

Local storm report, Aug 10, 6:54 PM MST, 2 hours 29 minutes before

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Local storm report, Aug 10, 7:19 PM MST, 2 hours 4 minutes before

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Local storm report, Aug 10, 7:53 PM MST, 1 hour 30 minutes before

Preliminary Local Storm Report
National Weather Service Tucson AZ
753 PM MST Mon Aug 10 2026

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

0741 PM     Tstm Wnd Gst     7 NNW Willcox           32.35N 109.86W
08/10/2026  M66 MPH          Cochise            AZ   Mesonet

            Personal weather station gusted to 66 mph.

&&

JVT

Local storm report, Aug 10, 8:09 PM MST, 1 hour 14 minutes before

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</head>
<body>
  <main class="wrap">
    <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>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
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      <p id="message2">
        Please try again in a few minutes.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 10, 5:11 PM MST	Flash Flood Warning	TWC	Pima	3 hr
Aug 10, 5:24 PM MST	Severe Thunderstorm Warning	TWC	Cochise	28 min
Aug 10, 5:36 PM MST	Severe Thunderstorm Warning	TWC	Pima	39 min
Aug 10, 6:01 PM MST	Flash Flood Warning	TWC	Pima	3 hr
Aug 10, 6:03 PM MST	Severe Thunderstorm Warning	TWC	Pima	42 min
Aug 10, 6:12 PM MST	Severe Thunderstorm Warning Considerable damage threat	TWC	Pima	48 min
Aug 10, 6:14 PM MST	Severe Thunderstorm Warning	TWC	Pima	46 min
Aug 10, 6:28 PM MST	Flash Flood Warning	TWC	Pima	3 hr
Aug 10, 6:40 PM MST	Severe Thunderstorm Warning	TWC	Pima	50 min
Aug 10, 6:55 PM MST	Severe Thunderstorm Warning	TWC	Pima	31 min
Aug 10, 6:58 PM MST	Areal Flood Advisory	TWC	Pima	3 hr
Aug 10, 7:02 PM MST	Flash Flood Warning	TWC	Pima	3 hr
Aug 10, 7:04 PM MST	Severe Thunderstorm Warning	TWC	Pima	41 min
Aug 10, 7:12 PM MST	Severe Thunderstorm Warning	TWC	Pima	33 min
Aug 10, 7:17 PM MST	Flash Flood Warning Considerable damage threat	TWC	Graham	3 hr
Aug 10, 7:18 PM MST	Severe Thunderstorm Warning	TWC	Cochise, Graham	42 min
Aug 10, 7:26 PM MST	Severe Thunderstorm Warning	TWC	Pima	49 min
Aug 10, 7:45 PM MST	Severe Thunderstorm Warning	TWC	Cochise	45 min
Aug 10, 8:02 PM MST	Areal Flood Advisory	TWC	Cochise	3 hr
Aug 10, 8:27 PM MST	Flash Flood Warning	TWC	Graham	3 hr
Aug 10, 8:35 PM MST	Severe Thunderstorm Warning	TWC	Graham	40 min
Aug 10, 9:06 PM MST	Areal Flood Advisory	TWC	Pima	114 min
Aug 11, 6:02 AM MST	Areal Flood Advisory	TWC	Pima	118 min
Aug 11, 8:27 AM MST	Areal Flood Advisory	TWC	Pima	4 hr
Aug 11, 4:39 PM MST	Severe Thunderstorm Warning	TWC	Greenlee	51 min

Nearby

Severe Thunderstorm Warnings in Arizona, 2026 Every severe thunderstorm warning in 2026

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.