Alert archive / Arizona / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 117, NWS Tucson, AZ

August 7, 2022Cochise County, Santa Cruz County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Aug 7, 2022, 1:49 PM MST for Cochise County, Santa Cruz County, Arizona. It was in force for 41 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 7, 2022, 1:49 PM MST (20:49 UTC)
Expired
Aug 7, 2022, 2:30 PM MST
In force
41 min
Issued by
NWS Tucson, AZ
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Cochise County, AZ, Santa Cruz County, AZ

The radar

The Tucson radar (KEMX), 38 km from the middle of the area, began a volume at 20:51 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

Tuscon, AZ (KTUS), launched 12:00Z, 8.8 hours before the alert went out and 77 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, Tuscon, AZ at 12:00Z on 2022-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tuscon, AZ at 12:00Z on 2022-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 square meters per square second.1939Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2136 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
175 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 Aug 7, 10:04 AM MST, 3 hours 45 minutes earlier.

Area forecast discussion, Aug 7, 10:04 AM MST, 3 hours 45 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</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.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

In the hours before

Special weather statement, Aug 7, 1:44 PM MST, 5 minutes before
Special Weather Statement
National Weather Service Tucson AZ
144 PM MST Sun Aug 7 2022

AZZ503-513-072130-
Dragoon/Mule/Huachuca and Santa Rita Mountains including
Bisbee/Canelo Hills/Madera Canyon-Upper Santa Cruz River and Altar
Valleys including Nogales-
144 PM MST Sun Aug 7 2022

...A strong thunderstorm will impact portions of southwestern Cochise
and southeastern Santa Cruz Counties through 230 PM MST...

At 144 PM MST, Doppler radar was tracking a strong thunderstorm 7
miles west of Parker Canyon Lake, or 21 miles west of Sierra Vista,
moving southwest at 15 mph.

HAZARD...Wind gusts up to 50 mph and nickel 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...
Parker Canyon Lake and Lochiel.

This includes Route 83 between mile markers 3 and 4.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3139 11081 3150 11057 3144 11052 3144 11041
      3136 11041 3133 11052 3133 11077
TIME...MOT...LOC 2044Z 050DEG 13KT 3143 11058

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH

JRM

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 5:58 PM MSTSevere Thunderstorm WarningTWCCochise47 min
Aug 6, 6:51 PM MSTSevere Thunderstorm WarningTWCCochise39 min
Aug 6, 7:21 PM MSTDust Storm AdvisoryTWCCochise, Pima, Santa Cruz39 min
Aug 6, 7:27 PM MSTSevere Thunderstorm WarningTWCCochise48 min
Aug 6, 7:46 PM MSTFlash Flood Warning Considerable damage threatTWCSanta Cruz3 hr
Aug 6, 7:50 PM MSTSevere Thunderstorm WarningTWCCochise, Pima, Santa Cruz40 min
Aug 6, 8:00 PM MSTSevere Thunderstorm WarningTWCCochise45 min
Aug 6, 8:30 PM MSTAreal Flood AdvisoryTWCCochise, Pima, Santa Cruz3 hr
Aug 6, 8:41 PM MSTSpecial Weather StatementTWCSanta Cruz64 min
Aug 6, 9:09 PM MSTSevere Thunderstorm WarningTWCPima, Santa Cruz51 min
Aug 6, 9:34 PM MSTDust Storm AdvisoryTWCPima, Pinal56 min
Aug 6, 10:25 PM MSTDust Storm AdvisoryTWCPima, Pinal65 min
Aug 6, 10:43 PM MSTDust Storm WarningTWCPima, Pinal62 min
Aug 7, 2:13 AM MSTBlowing Dust AdvisoryTWCPima, Pinal21 hr
Aug 7, 8:05 AM MSTFlood WatchTWCCochise, Graham, Pima, Pinal, Santa Cruz16 hr
Aug 7, 1:44 PM MSTSpecial Weather StatementTWCSanta Cruz46 min
Aug 7, 2:53 PM MSTSpecial Weather StatementTWC52 min
Aug 7, 3:51 PM MSTSpecial Weather StatementTWCGreenlee39 min
Aug 7, 4:45 PM MSTSevere Thunderstorm WarningTWCCochise45 min
Aug 7, 4:45 PM MSTSevere Thunderstorm WarningTWCGraham45 min
Aug 7, 4:49 PM MSTSpecial Weather StatementTWCCochise41 min

Nearby

Severe Thunderstorm Warnings in Arizona, 2022Every severe thunderstorm warning in 2022

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.