Alert archive / Arizona / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 17, NWS Tucson, AZ

July 3, 2025Cochise County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Jul 3, 2025, 4:23 PM MST for Cochise County, Arizona. It was in force for 26 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: Jul 3, 2025, 4:23 PM MST (23:23 UTC)
Expired: Jul 3, 2025, 4:49 PM MST
In force: 26 min
Issued by: NWS Tucson, AZ
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Cochise County, AZ

The radar

The Tucson radar (KEMX), 83 km from the middle of the area, began a volume at 23:27 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.

The nearest sounding before it

Phoenix, AZ (KPSR), launched 12:00Z, 11.4 hours before the alert went out and 270 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 41 J/kg
Mixed-layer CIN: -171 J/kg
Mixed-layer LCL: 1405 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 51 m²/s²
0-3 km storm-relative helicity: 44 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Tucson, AZ wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 3, 3:56 PM MST, 27 minutes earlier.

Area forecast discussion, Jul 3, 3:56 PM MST, 27 minutes before

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In the hours before

Local storm report, Jul 3, 3:03 PM MST, 1 hour 20 minutes before

Preliminary Local Storm Report
National Weather Service Tucson AZ
303 PM MST Thu Jul 3 2025

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

0255 PM     Flash Flood      8 NNW Tucson            32.29N 110.97W
07/03/2025                   Pima               AZ   Public

            Reports of 1.3 inches of water fell over 45
            minutes causing flooding of yard.

&&

JVT

Local storm report, Jul 3, 3:17 PM MST, 1 hour 6 minutes before

Preliminary Local Storm Report
National Weather Service Tucson AZ
317 PM MST Thu Jul 3 2025

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

0245 PM     Flash Flood      6 NW Tucson             32.26N 110.96W
07/03/2025                   Pima               AZ   NWS Employee

            NWS Employee reports flash flooding along
            1st street from River Rd to Grant Rd. Swift
            water crossing roads at several junctions.

&&

KLM

Local storm report, Jul 3, 3:30 PM MST, 53 minutes before

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Local storm report, Jul 3, 3:31 PM MST, 52 minutes before

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<body>
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      <div class="status" id="status">Temporary Notice</div>
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      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
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Local storm report, Jul 3, 4:03 PM MST, 20 minutes before

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<head>
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  <title>Service Notice</title>
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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.
      </p>
      <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
Jul 2, 5:14 PM MST	Severe Thunderstorm Warning	TWC	Pima	46 min
Jul 2, 6:02 PM MST	Severe Thunderstorm Warning	TWC	Pima	43 min
Jul 2, 6:30 PM MST	Severe Thunderstorm Warning	TWC	Pima, Pinal	45 min
Jul 2, 6:47 PM MST	Areal Flood Advisory	TWC	Pima	2 hr
Jul 2, 7:10 PM MST	Flash Flood Warning Considerable damage threat	TWC	Pima	3 hr
Jul 3, 1:53 PM MST	Severe Thunderstorm Warning	TWC	Pima	52 min
Jul 3, 2:08 PM MST	Flash Flood Warning Considerable damage threat	TWC	Pima	112 min
Jul 3, 2:34 PM MST	Flash Flood Warning Considerable damage threat	TWC	Pima	116 min
Jul 3, 2:43 PM MST	Severe Thunderstorm Warning	TWC	Pima	47 min
Jul 3, 2:45 PM MST	Flash Flood Warning Considerable damage threat	TWC	Pima	2 hr
Jul 3, 3:28 PM MST	Flash Flood Warning Considerable damage threat	TWC	Graham, Pinal	2 hr

Nearby

Severe Thunderstorm Warnings in Arizona, 2025 Every severe thunderstorm warning in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.