Alert archive / Arizona / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 28, NWS Tucson, AZ

July 16, 2022Pima County, Pinal County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Jul 16, 2022, 6:48 PM MST for Pima County, Pinal County, Arizona. It was in force for 42 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 16, 2022, 6:48 PM MST (01:48 UTC)
Expired: Jul 16, 2022, 7:30 PM MST
In force: 42 min
Issued by: NWS Tucson, AZ
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Pima County, AZ, Pinal County, AZ

The radar

The Tucson radar (KEMX), 88 km from the middle of the area, began a volume at 01:49 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Tuscon, AZ (KTUS), launched 00:00Z, 1.8 hours before the alert went out and 50 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: 516 J/kg
Mixed-layer CIN: -97 J/kg
Mixed-layer LCL: 3294 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: -91 m²/s²
0-3 km storm-relative helicity: 12 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

228 
WUUS55 KTWC 170148
SVRTWC
AZC019-021-170230-
/O.NEW.KTWC.SV.W.0028.220717T0148Z-220717T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tucson AZ
648 PM MST Sat Jul 16 2022

The National Weather Service in Tucson has issued a

* Severe Thunderstorm Warning for...
  Northeastern Pima County in southeastern Arizona...
  South central Pinal County in southeastern Arizona...

* Until 730 PM MST.

* At 647 PM MST, a severe thunderstorm was located near Saddlebrooke,
  or 8 miles northwest of Catalina, moving southwest at 25 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Marana, Saddlebrooke, Dove Mountain and Oracle Junction. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3270 11095 3255 11086 3239 11122 3264 11134
TIME...MOT...LOC 0147Z 066DEG 20KT 3258 11098 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

AWH

2 follow-up statements

206 
WWUS55 KTWC 170206
SVSTWC

Severe Weather Statement
National Weather Service Tucson AZ
706 PM MST Sat Jul 16 2022

AZC019-021-170230-
/O.CON.KTWC.SV.W.0028.000000T0000Z-220717T0230Z/
Pima-Pinal-
706 PM MST Sat Jul 16 2022

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM MST
FOR NORTHEASTERN PIMA AND SOUTH CENTRAL PINAL COUNTIES...

At 706 PM MST, a severe thunderstorm was located 11 miles north of
Marana, moving southwest at 20 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Marana, Saddlebrooke, Dove Mountain and Oracle Junction. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3269 11104 3253 11091 3239 11122 3264 11134
TIME...MOT...LOC 0206Z 067DEG 17KT 3257 11110 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

AWH

120 
WWUS55 KTWC 170225
SVSTWC

Severe Weather Statement
National Weather Service Tucson AZ
725 PM MST Sat Jul 16 2022

AZC019-021-170235-
/O.EXP.KTWC.SV.W.0028.000000T0000Z-220717T0230Z/
Pima-Pinal-
725 PM MST Sat Jul 16 2022

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN PIMA AND SOUTH
CENTRAL PINAL COUNTIES WILL EXPIRE AT 730 PM MST...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.

LAT...LON 3269 11104 3253 11091 3239 11122 3264 11134
TIME...MOT...LOC 0225Z 066DEG 20KT 3253 11120 

$$

AWH

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 16, 3:05 PM MST, 3 hours 43 minutes earlier.

Area forecast discussion, Jul 16, 3:05 PM MST, 3 hours 43 minutes before

Area Forecast Discussion
National Weather Service Tucson AZ
305 PM MST Sat Jul 16 2022

.SYNOPSIS...Above average heat will continue this weekend as we
see a daily chance of mainly afternoon and evening showers and
thunderstorms. An uptick in monsoon activity is possible next week
with temperature returning closer to normal.

&&

.DISCUSSION...Isolated to scattered thunderstorms have fired
across Santa Cruz county and southern Cochise county this
afternoon. This trend will continue into the evening hours mainly
west of a Safford to Sierra Vista line. Some of the stronger
storms will produce gusty/damaging winds and locally heavy rain.
The thunderstorm outflows will also generate areas of blowing
dust, especially W/NW of Tucson. later this afternoon into the
evening. A blowing dust advisory was issued for these areas
between 5 pm and 9 pm.

Sunday looks like a down day with warm mid-level temperatures
inhibiting storm development. At this time the best storm
activity will be across Santa Cruz county.

Isolated to scattered afternoon showers and thunderstorms each
day next week, with possible uptick in activity Wednesday and
Thursday associated with potential easterly wave passing by to our
south.

High temperatures remaining hot tomorrow then will gradually cool
on a daily basis down close to normal by next weekend.

&&

.AVIATION...Valid through 18/00Z.
ISOLD-SCT SHRA/TSRA with CIGS 8-12k ft AGL from KTUS/KOLS to the
northwest through 17/06Z and returning after 17/20Z with less
coverage than this afternoon. Diurnal SFC winds generally less than
12 kts with the exception of gusty and erratic thunderstorm
outflows. Dust can be picked up along the I-10 corridor in the
evening hours. Best chance for outflows will be late afternoon and
early evening for KTUS. Some of the storms could be strong with
brief MVFR conditions and wind gusts above 40 kts. Aviation
discussion not updated for TAF amendments.

&&

.FIRE WEATHER...Temperatures will remain several degrees above
average through the weekend with daily thunderstorm chances. Strong
and erratic outflow winds from the stronger storms are expected.
Afternoon Min RH will stay above 15% with good to excellent
recoveries.

&&

.TWC WATCHES/WARNINGS/ADVISORIES...
 Blowing Dust Advisory from 6 PM to 9 PM MST this evening for
  AZZ505.

 Blowing Dust Advisory until 8 PM MST this evening for
  AZZ501-502- 504.

&&

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

In the hours before

Local storm report, Jul 16, 5:24 PM MST, 1 hour 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TUCSON AZ
524 PM MST SAT JUL 16 2022

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

0520 PM     HAIL             1 SE GREEN VALLEY       31.84N 110.99W
07/16/2022  E1.00 INCH       PIMA               AZ   TRAINED SPOTTER

&&

KD

Local storm report, Jul 16, 5:32 PM MST, 1 hour 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TUCSON AZ
532 PM MST SAT JUL 16 2022

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

0525 PM     HAIL             2 N GREEN VALLEY        31.88N 111.01W
07/16/2022  E1.00 INCH       PIMA               AZ   TRAINED SPOTTER

            SPOTTER REPORTED 1 INCH HAIL IN GREEN
            VALLEY.

&&

KG

Local storm report, Jul 16, 5:57 PM MST, 51 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TUCSON AZ
557 PM MST SAT JUL 16 2022

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

0546 PM     TSTM WND DMG     2 SSE GREEN VALLEY      31.83N 111.00W
07/16/2022                   PIMA               AZ   PUBLIC

            PALO VERDES AND MESQUITE TREES DOWN ON I-19
            FRONTAGE ROAD. BRANCHES 6IN IN DIAMETER AND
            LARGER SNAPPED OFF AND BLOCKING ROAD.

0547 PM     HAIL             2 S GREEN VALLEY        31.81N 111.01W
07/16/2022  E1.00 INCH       PIMA               AZ   PUBLIC

            MPING REPORT.

&&

Local storm report, Jul 16, 6:00 PM MST, 48 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TUCSON AZ
600 PM MST SAT JUL 16 2022

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

0525 PM     HAIL             1 ENE GREEN VALLEY      31.85N 110.99W
07/16/2022  E1.50 INCH       PIMA               AZ   PUBLIC

            PUBLIC REPORT RECEIVED OF HAIL BETWEEN HALF
            DOLLAR AND PING PONG BALL SIZE HAIL NEAR THE
            INTERSECTION OF CONTINENTAL RD AND
            INTERSTATE 19 IN GREEN VALLEY.

&&

KG

Local storm report, Jul 16, 6:05 PM MST, 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TUCSON AZ
605 PM MST SAT JUL 16 2022

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

0525 PM     TSTM WND DMG     1 ENE GREEN VALLEY      31.85N 110.99W
07/16/2022                   PIMA               AZ   PUBLIC

            PUBLIC REPORT RECEIVED OF A HIGHWAY SIGN
            BLOWN OVER AT THE CONTINENTAL ROAD EXIT OFF
            INTERSTATE 19.

&&

KG

Local storm report, Jul 16, 6:08 PM MST, 40 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE TUCSON AZ
608 PM MST SAT JUL 16 2022

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

0525 PM     HAIL             2 S GREEN VALLEY        31.81N 111.01W
07/16/2022  E1.00 INCH       PIMA               AZ   PUBLIC

            CORRECTS PREVIOUS HAIL REPORT FROM 2 S GREEN
            VALLEY. MPING REPORT.

0525 PM     TSTM WND DMG     2 SSE GREEN VALLEY      31.83N 111.00W
07/16/2022                   PIMA               AZ   PUBLIC

            CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 2
            SSE GREEN VALLEY. PALO VERDES AND MESQUITE
            TREES DOWN ON I-19 FRONTAGE ROAD. BRANCHES
            6IN IN DIAMETER AND LARGER SNAPPED OFF AND
            BLOCKING ROAD.

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 16, 5:28 PM MST	Severe Thunderstorm Warning	TWC	Pima, Santa Cruz	47 min
Jul 16, 5:34 PM MST	Flash Flood Warning Considerable damage threat	TWC	Pima, Santa Cruz	2 hr
Jul 16, 5:38 PM MST	Severe Thunderstorm Warning	TWC	Graham, Pinal	52 min
Jul 16, 6:04 PM MST	Severe Thunderstorm Warning	TWC	Pima	41 min
Jul 16, 6:09 PM MST	Severe Thunderstorm Warning	TWC	Pima	51 min
Jul 16, 6:43 PM MST	Severe Thunderstorm Warning	TWC	Pima	47 min
Jul 16, 6:57 PM MST	Severe Thunderstorm Warning	TWC	Pima	48 min
Jul 16, 7:14 PM MST	Dust Storm Warning	TWC	Pima	61 min
Jul 16, 7:43 PM MST	Severe Thunderstorm Warning	TWC	Pima	47 min
Jul 16, 8:15 PM MST	Severe Thunderstorm Warning	TWC	Pima	45 min
Jul 17, 12:10 AM MST	Areal Flood Warning	TWC	Pima	15 hr
Jul 17, 2:56 PM MST	Severe Thunderstorm Warning	TWC	Pima, Santa Cruz	49 min
Jul 17, 3:59 PM MST	Special Weather Statement	TWC	Pima	46 min
Jul 17, 4:37 PM MST	Special Weather Statement	TWC		38 min
Jul 17, 4:45 PM MST	Severe Thunderstorm Warning	TWC	Pima	45 min
Jul 17, 4:45 PM MST	Severe Thunderstorm Warning	TWC	Pima	45 min
Jul 17, 4:52 PM MST	Special Weather Statement	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.