Arizona, 2022

Tornado and Flash Flooding in Arizona, August 25, 2022

August 25, 2022 · NWS TWC · 3 events in 1 county or zone

Isolated thunderstorms moved erratically across southeast Arizona during the afternoon and evening. In the Tucson Metro, localized flash flooding occurred and a landspout was spotted.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

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The toll

Deaths
0
Injuries
0
Property damage
$3,000
Crop damage
None recorded
Events
3

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS TWC wrote it up.

Isolated thunderstorms moved erratically across southeast Arizona during the afternoon and evening. In the Tucson Metro, localized flash flooding occurred and a landspout was spotted.

What forecasters said that day

The local office's own words before the first event, 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 the first event at Aug 25, 1:33 PM MST, 2 hours 27 minutes earlier.

Area forecast discussion, Aug 25, 1:33 PM MST, 2 hours 27 minutes before
Area Forecast Discussion
National Weather Service Tucson AZ
133 PM MST Thu Aug 25 2022

.SYNOPSIS...
Scattered afternoon and evening showers and thunderstorms will
continue through the end of the week. This will be followed by
some drying Sunday into the middle of next week resulting in less
storm coverage. Near or slightly below normal temperatures will
continue through the weekend with a bit of a warm up expected
early next week.

&&

.DISCUSSION...Today through Wednesday.
Convection has begun to develop early this afternoon over the
higher elevations and is expected to continue to expand through
this evening. Storm motion will remain slow, increasing the
threat for flash flooding as PWATs across the area range from
1.1"-2.0" from east to west respectively. Coverage should begin to
decrease after sunset but lingering showers will be possible into
late tonight, especially across Pima and southeastern Pinal
counties.

Looking at the overall setup going into the weekend, the ridge
which was previously centered to our north will transition across
the area today and over Baja/Sonora on Friday. From there, a
shortwave trough will move across the Pacific Northwest and Great
Basin nudging the ridge further to the southwest off the coast of
Baja this weekend into early next week. As the trough exits, the
ridge will build back northward over the Great Basin through the
middle of next week. Scattered showers and storms will continue
through this Saturday as moisture remains trapped under the ridge
but a drying trend will initiate as flow becomes more westerly.
This will cause chances for rain to begin a downward trend after
Saturday which is expected to continue through the
Tuesday/Wednesday time frame. Rain chances drop to below 25
percent in most areas and focus south and east of Tucson.
Temperatures which have been a couple degrees below seasonal
normals will begin to warm early next week.

&&

.AVIATION...Valid through 27/00z.
FEW-SCT clouds at 3k-6k ft AGL and SCT-BKN at or above 10k ft AGL
will continue through 26/01z-26/03z. Scattered TSRA/SHRA will
continue through 26/04z, potentially through 26/06z at KOLS. TSRA
will be more likely earlier in that period with strong gusts in
excess of 40 kts, reduced visibilities in heavy rain, and low
clouds becoming BKN-OVC accompanying any stronger storms or
heavier showers. Clouds will lift and become FEW-SCT overnight
into Friday morning with another round of TSRA/SHRA expected after
26/20z. Outside of storms, winds will be light and favoring
diurnal trends. Aviation not updated for TAF amendments.

&&

.FIRE WEATHER...
Daily rounds of scattered showers and thunderstorms will continue
through the weekend with a downward trend after Saturday. Primary
threats will be strong winds, lightning, and flash flooding.
Outside of thunderstorm activity, wind trends will remain light
and favor a westerly direction tomorrow through early next week
with typical, diurnal winds each night.

&&

.HYDROLOGY...
The Gila River will continue to see a flood wave move slowly
downstream of Safford through Friday and then remain elevated
through into the weekend. Flood advisories are in effect as a result
of this flow.

&&

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

Guillet

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

In the hours before

Local storm report, Aug 25, 1:04 PM MST, 2 hours 56 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TUCSON AZ
104 PM MST THU AUG 25 2022

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

0800 PM     FLASH FLOOD      6 SSE PICTURE ROCKS     32.27N 111.20W
08/24/2022                   PIMA               AZ   OTHER FEDERAL

            NATIONAL PARK SERVICE REPORTED FLOOD DAMAGE
            TO BAJADA LOOP ROAD AT SAGUARO NATIONAL PARK
            WEST. THE LOOP REMAINS CLOSED UP TO TWO DAYS
            FOR REPAIRS. TIMING ESTIMATED BY RADAR.

&&

KG

The radar

The Tucson radar (KEMX), 34 km away, was scanning. The volume nearest the first event began at 22:58 UTC.

Open the radar archive at this moment

Event by event

2 flash flood, 1 tornado. Local standard time, as filed.

Tornado, Pima

When
August 25, 4:00 PM MST to 4:02 PM MST
Where
Pima County, 0.91 mi SW of Littletown
Rating
EF0
Path length
0.05 mi
Path width
10 yd
Reported by
Public
Coordinates
32.120, -110.880

A landspout was spotted near the Los Reales landfill on the south side of Tucson. It was nearly stationary before it dissipated.

Flash Flood, Pima

When
August 25, 7:50 PM MST to 8:50 PM MST
Where
Pima County, 4.17 mi E of (Dma)davis Monthan A to 3.77 mi E of (Dma)davis Monthan A
Cause
Heavy Rain
Property damage
$3,000
Reported by
Department of Highways
Coordinates
32.175, -110.809

Heavy rain of 1-1.5 on Tucson's southeast side caused localized flash flooding. Escalante Rd. was closed at the Atterbury Wash and a man was rescued from his vehicle in the Alamo Wash at Yale Dr.

Flash Flood, Pima

When
August 25, 8:00 PM MST to 9:00 PM MST
Where
Pima County, 3.11 mi S of Drexel Hgts to 3.13 mi SSE of Drexel Hgts
Cause
Heavy Rain
Reported by
Department of Highways
Coordinates
32.135, -111.015

Heavy rain of 1-1.5 southeast of Valencia and Mission Rds. caused the West Branch of the Santa Cruz River to flood Drexel Road, causing its closure.

What these are

Tornado
A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.
Flash Flood
Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Arizona in 2022Every state in 2022This day in weather historyThe tornado archive for Arizona, 2022Warnings in Arizona, August 2022

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1055021, 1055023, 1055026.