Alert archive / Arizona / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 14, NWS Tucson, AZ

July 14, 2022Pima County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Jul 14, 2022, 4:23 PM MST for Pima County, Arizona. It was in force for 20 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 14, 2022, 4:23 PM MST (23:23 UTC)
Expired
Jul 14, 2022, 4:43 PM MST
In force
20 min
Issued by
NWS Tucson, AZ
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Pima County, AZ

The radar

The Tucson radar (KEMX), 112 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

Tuscon, AZ (KTUS), launched 12:00Z, 11.4 hours before the alert went out and 84 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 2022-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 21 joules per kilogram.LCLLFCEL10008507005003002001001 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 2022-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -15 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
21 J/kg
Mixed-layer CIN
-318 J/kg
Mixed-layer LCL
2445 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
-15 m²/s²
0-3 km storm-relative helicity
59 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 14, 1:42 PM MST, 2 hours 41 minutes earlier.

Area forecast discussion, Jul 14, 1:42 PM MST, 2 hours 41 minutes before
Area Forecast Discussion
National Weather Service Tucson AZ
142 PM MST Thu Jul 14 2022

.SYNOPSIS...Above average heat will continue through the weekend as
we see a daily chance of mainly afternoon and evening showers and
thunderstorms.

&&

.DISCUSSION...Southeast AZ skies cleared nicely this morning under
the subsidence region of a MCV that passed through and was helping
trigger thunderstorms in northern sections of the state this
afternoon. The combination of daytime heating and the influence from
another MCV tracking northwest over the northern Gulf of California
will aid in the development of thunderstorms the rest of today. The
Tucson morning upper-air sounding showed a decent steering flow for
thunderstorms today. The vertical wind profile should also support
more organization in thunderstorms with decent coverage and
individual storm motion generally from east to west at 10 to 20 mph.
The sub-cloud layer remained rather dry so strong organized outflow
winds producing blowing dust will be a concern again, especially
near the Marana to Phoenix I-10 corridor. Also cannot rule out some
brief heavy downpours and/or microbursts.

A strong ridge of high pressure centered near the Four Corners will
continue to result in a favorable flow pattern for daily chances of
showers and thunderstorms. Ensembles favored an upswing in
thunderstorm coverage late in the weekend and early next week as an
inverted trough tracks westward through northern Mexico. High
temperatures will likely lower a few degrees next week as deeper
moisture returns and with the potential uptick in areal rainfall
coverage.

&&

.AVIATION...Valid through 16/00Z.
ISOLD-SCT -SHRA/TSRA with CIGS 8-12k ft AGL possible this afternoon
and evening, then again tomorrow. SFC winds generally less than 12
kts with the exception of gusty and erratic thunderstorm outflows.
Aviation discussion not updated for TAF amendments.

&&

.FIRE WEATHER...Temperatures will remain several degrees above
average through the weekend with enough moisture for daily
thunderstorm chances. Strong and erratic outflow winds from some
storms.

&&

.TWC WATCHES/WARNINGS/ADVISORIES...None.

&&

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In the hours before

Special weather statement, Jul 14, 3:28 PM MST, 55 minutes before
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Special weather statement, Jul 14, 3:44 PM MST, 39 minutes before
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Special weather statement, Jul 14, 4:14 PM MST, 9 minutes before
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<body>
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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>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 13, 6:15 PM MSTSevere Thunderstorm WarningTWCPima, Pinal45 min
Jul 14, 3:06 PM MSTSevere Thunderstorm WarningTWCPima39 min
Jul 14, 3:28 PM MSTSpecial Weather StatementTWCPinal47 min
Jul 14, 3:44 PM MSTSpecial Weather StatementTWC46 min
Jul 14, 4:14 PM MSTSpecial Weather StatementTWC46 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.