Alert archive / Arizona / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 36, NWS Phoenix, AZ

August 13, 2023La Paz County, Arizona

NWS Phoenix, AZ issued this severe thunderstorm warning at Aug 13, 2023, 2:06 PM MST for La Paz County, Arizona. It was in force for 39 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 13, 2023, 2:06 PM MST (21:06 UTC)
Expired
Aug 13, 2023, 2:45 PM MST
In force
39 min
Issued by
NWS Phoenix, AZ
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County La Paz County, AZ

The radar

The Yuma radar (KYUX), 151 km from the middle of the area, began a volume at 21:07 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

Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 9.1 hours before the alert went out and 260 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-pSkew-T log-p diagram, Flgstf/Belemont, AZ at 12:00Z on 2023-08-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Flgstf/Belemont, AZ at 12:00Z on 2023-08-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1 J/kg
Mixed-layer CIN
-161 J/kg
Mixed-layer LCL
1767 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
16 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 Phoenix, AZ wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 13, 11:02 AM MST, 3 hours 4 minutes earlier.

Area forecast discussion, Aug 13, 11:02 AM MST, 3 hours 4 minutes before
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In the hours before

Special weather statement, Aug 13, 12:09 PM MST, 1 hour 57 minutes before
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Special weather statement, Aug 13, 12:31 PM MST, 1 hour 35 minutes before
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      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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Special weather statement, Aug 13, 12:48 PM MST, 1 hour 18 minutes before
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      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
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Special weather statement, Aug 13, 12:58 PM MST, 1 hour 8 minutes before
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Special weather statement, Aug 13, 1:24 PM MST, 42 minutes before
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      <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.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Special weather statement, Aug 13, 1:47 PM MST, 19 minutes before
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<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.
      </p>
      <p class="small" id="detail">
        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 Phoenix, AZ issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 12, 5:05 PM MSTAreal Flood AdvisoryPSRGila3 hr
Aug 13, 12:09 PM MSTSpecial Weather StatementPSRLa Paz36 min
Aug 13, 12:29 PM MSTExcessive Heat WatchPSRMaricopa, Yuma24 hr
Aug 13, 12:31 PM MSTSpecial Weather StatementPSR44 min
Aug 13, 12:48 PM MSTSpecial Weather StatementPSR27 min
Aug 13, 12:58 PM MSTSpecial Weather StatementPSRLa Paz47 min
Aug 13, 1:01 PM MSTSevere Thunderstorm WarningPSRLa Paz44 min
Aug 13, 1:10 PM MSTSevere Thunderstorm WarningPSRMaricopa, Pinal50 min
Aug 13, 1:21 PM MSTSevere Thunderstorm WarningPSRLa Paz39 min
Aug 13, 1:24 PM MSTSpecial Weather StatementPSRLa Paz51 min
Aug 13, 1:39 PM MSTSevere Thunderstorm WarningPSRLa Paz51 min
Aug 13, 1:47 PM MSTSpecial Weather StatementPSRMaricopa43 min
Aug 13, 1:54 PM MSTSevere Thunderstorm WarningPSRLa Paz51 min
Aug 13, 1:56 PM MSTSevere Thunderstorm WarningPSRLa Paz34 min
Aug 13, 2:28 PM MSTAreal Flood AdvisoryPSRLa Paz3 hr
Aug 13, 2:52 PM MSTSpecial Weather StatementPSR53 min
Aug 13, 2:55 PM MSTSpecial Weather StatementPSRMaricopa50 min
Aug 13, 3:27 PM MSTSpecial Weather StatementPSR48 min
Aug 13, 3:54 PM MSTSpecial Weather StatementPSR36 min
Aug 13, 2:43 PM MSTAreal Flood AdvisoryPSRRiverside3 hr
Aug 13, 4:05 PM MSTAreal Flood AdvisoryPSRSan Bernardino3 hr

Nearby

Severe Thunderstorm Warnings in Arizona, 2023Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.