Alert archive / Arizona / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 124, NWS Tucson, AZ

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

NWS Tucson, AZ issued this severe thunderstorm warning at Aug 7, 2022, 6:41 PM MST for Cochise County, Pima County, Santa Cruz County, Arizona. It was in force for 49 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, 6:41 PM MST (01:41 UTC)
Expired: Aug 7, 2022, 7:30 PM MST
In force: 49 min
Issued by: NWS Tucson, AZ
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Cochise County, AZ, Pima County, AZ, Santa Cruz County, AZ

The radar

The Tucson radar (KEMX), 17 km from the middle of the area, began a volume at 01:44 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 00:00Z, 1.7 hours before the alert went out and 39 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: 826 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 2670 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: -13 m²/s²
0-3 km storm-relative helicity: -3 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, 2:34 PM MST, 4 hours 7 minutes earlier.

Area forecast discussion, Aug 7, 2:34 PM MST, 4 hours 7 minutes before

Area Forecast Discussion
National Weather Service Tucson AZ
234 PM MST Sun Aug 7 2022

.SYNOPSIS...A more favorable flow pattern for daily thunderstorms
will persist through this coming week as the upper high becomes
centered over the Four Corners region. Daytime temperature will
remain near seasonable readings.

&&

.DISCUSSION...Please see mid morning update for a more detailed
breakdown of the storm environment and forecast.

The special 18Z sounding showed a more favorable storm
environment with the onion look eroding. This should continue to
erode with the possibility of strong to perhaps severe
thunderstorms. Expect storms to continue to develop along the
International Border and across the Mogollon Rim. These storms
will likely move into the lower deserts becoming more organized
with time. Strong winds, blowing dust, and marginally severe hail
remain the main risks. As the storms move from Nogales/Tucson west
into central/western Pima County, the flash flood threat
increases.

Due to the IT, storm chances may persist well into the late
evening and overnight.

For the extended forecast, models continued to depict a favorable
flow pattern for daily scattered showers and thunderstorms
through much of this coming week as the upper high sets up over
the Four Corners region. Daytime temperatures will remain near
seasonable readings.

&&

.AVIATION...Valid through 09/00Z. Now through 08/06Z, SCT-BKN
clouds at 7k-10k ft AGL, with the clouds slowing diminishing aft
08/08Z. SCTD-NMRS SHRA/TSRA primarily between now and 08/05Z.
CIGS may briefly lower to 4k-6k ft AGL with the TSRA, along with
mountain obscurations and wind gusts to 40+ kts. Otherwise, SFC
wind will generally be less than 12 kts, favoring a WLY/NWLY
direction during the afternoon hours and variable in direction at
other times. Aviation discussion not updated for TAF amendments.

NOTE - Some blowing dust and isolated strong to severe
thunderstorms will be possible during the early evening. Small
hail, flash flooding, and strong gusty winds are possible.

&&

.FIRE WEATHER...An active monsoon period is expected to continue
through the coming week, with daily rounds of scattered showers and
thunderstorms. The typical threats of strong gusty winds and heavy
rainfall remain, as well as the potential for precipitation outside
the normal afternoon/evening cycles. Wind trends are otherwise light
following a diurnal pattern.

&&

.TWC WATCHES/WARNINGS/ADVISORIES...
Flood Watch until midnight MST tonight for AZZ501>504-507-
513>515.

Blowing Dust Advisory until 11 PM MST this evening for AZZ501-
502-504-505.

&&

Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson

In the hours before

Local storm report, Aug 7, 6:06 PM MST, 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TUCSON AZ
606 PM MST SUN AUG 7 2022

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

0605 PM     HAIL             8 SE SIERRA VISTA       31.47N 110.25W
08/07/2022  E0.70 INCH       COCHISE            AZ   TRAINED SPOTTER

            SPOTTER NUMBER 315 REPORTS PEA TO DIME SIZED
            HAIL.

&&

JVT

Local storm report, Aug 7, 6:15 PM MST, 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TUCSON AZ
615 PM MST SUN AUG 7 2022

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

0614 PM     HAIL             1 NNE HUACHUCA CITY     31.65N 110.34W
08/07/2022  E1.00 INCH       COCHISE            AZ   TRAINED SPOTTER

            TRAINED SPOTTERS 3065 AND 1807 REPORTS
            QUARTER SIZED HAIL.

&&

JVT

Local storm report, Aug 7, 6:17 PM MST, 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TUCSON AZ
617 PM MST SUN AUG 7 2022

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

0605 PM     HAIL             6 SE SIERRA VISTA       31.49N 110.26W
08/07/2022  M0.70 INCH       COCHISE            AZ   PUBLIC

            SPOTTER 304 REPORTS DIME SIZED HAIL AND A
            RAIN RATE OF 3.4IN PER HOUR.

&&

JVT

Local storm report, Aug 7, 6:24 PM MST, 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TUCSON AZ
624 PM MST SUN AUG 7 2022

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

0600 PM     TSTM WND GST     6 SSE SIERRA VISTA      31.50N 110.27W
08/07/2022  M74 MPH          COCHISE            AZ   PUBLIC

            PERSONAL WEATHER STATION MEASURED 74 MPH
            WIND GUST.

&&

KRG

Local storm report, Aug 7, 6:26 PM MST, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TUCSON AZ
626 PM MST SUN AUG 7 2022

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

0613 PM     HEAVY RAIN       3 SE SIERRA VISTA       31.53N 110.28W
08/07/2022  M1.10 INCH       COCHISE            AZ   TRAINED SPOTTER

            1.1 INCHES IN 17 MINUTES.

&&

KD

Local storm report, Aug 7, 6:41 PM MST, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TUCSON AZ
641 PM MST SUN AUG 7 2022

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

0610 PM     HAIL             9 SE SIERRA VISTA       31.49N 110.21W
08/07/2022  E1.00 INCH       COCHISE            AZ   PUBLIC

            PUBLIC REPORT RECEIVED VIA SOCIAL MEDIA OF
            QUARTER SIZED HAIL NEAR THE INTERSECTION OF
            KINO ROAD AND CANADA DRIVE.

&&

KRG

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 7, 5:26 PM MST	Severe Thunderstorm Warning	TWC	Cochise, Santa Cruz	49 min
Aug 7, 6:02 PM MST	Areal Flood Advisory	TWC	Cochise	3 hr
Aug 7, 6:06 PM MST	Severe Thunderstorm Warning Considerable damage threat	TWC	Cochise, Pima, Santa Cruz	39 min
Aug 7, 6:14 PM MST	Severe Thunderstorm Warning	TWC	Cochise	34 min
Aug 7, 6:19 PM MST	Flash Flood Warning Considerable damage threat	TWC	Cochise	116 min
Aug 7, 6:24 PM MST	Severe Thunderstorm Warning	TWC	Cochise	51 min
Aug 7, 7:05 PM MST	Special Weather Statement	TWC		40 min
Aug 7, 7:08 PM MST	Severe Thunderstorm Warning	TWC	Cochise	67 min
Aug 7, 7:32 PM MST	Severe Thunderstorm Warning	TWC	Cochise	58 min
Aug 7, 7:59 PM MST	Flash Flood Warning Considerable damage threat	TWC	Cochise	4 hr
Aug 7, 8:20 PM MST	Severe Thunderstorm Warning	TWC	Pima	40 min
Aug 7, 9:02 PM MST	Severe Thunderstorm Warning	TWC	Pima	43 min
Aug 7, 9:15 PM MST	Special Weather Statement	TWC	Cochise	45 min
Aug 8, 12:29 AM MST	Areal Flood Advisory	TWC	Pima, Pinal	2 hr
Aug 8, 1:02 AM MST	Areal Flood Advisory	TWC	Pima	118 min
Aug 8, 1:53 PM MST	Special Weather Statement	TWC		52 min
Aug 8, 2:20 PM MST	Special Weather Statement	TWC	Santa Cruz	40 min
Aug 8, 2:40 PM MST	Areal Flood Advisory	TWC	Pima	2 hr
Aug 8, 2:48 PM MST	Special Weather Statement	TWC		42 min
Aug 8, 3:07 PM MST	Severe Thunderstorm Warning	TWC	Pima	38 min

Nearby

Severe Thunderstorm Warnings in Arizona, 2022 Every 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.