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Severe Thunderstorm Warning 0171
Issued by the Tucson Forecast Office

Action Issued Starts Expiration
New 2026-08-10 21:05:06 2026-08-10 21:04:00 2026-08-10 21:45:00
Continued 2026-08-10 21:21:06 2026-08-10 21:45:00
Continued 2026-08-10 21:35:37 2026-08-10 21:45:00


Action: New
Issued At: 2026-08-10 21:05:06

445 
WUUS55 KTWC 110204
SVRTWC
AZC019-110245-
/O.NEW.KTWC.SV.W.0171.260811T0204Z-260811T0245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tucson AZ
704 PM MST Mon Aug 10 2026

The National Weather Service in Tucson has issued a

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

* Until 745 PM MST.

* At 704 PM MST, a severe thunderstorm was located over South Tucson,
  moving west 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...
  Tucson, Drexel Heights, Flowing Wells, South Tucson, Pascua Pueblo
  Yaqui Reservation, San Xavier Community, Tucson Mountain Park,
  Valencia West, Tucson Estates, Tucson International Airport,
  Saguaro National Park West and San Xavier Mission.

This includes the following highways...
Interstate 19 between mile markers 57 and 63. Route 86 between mile
markers 161 and 171. Route 77 between mile markers 70 and 71.
Interstate 10 between mile markers 252 and 263.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing damaging winds and large
hail.

&&

LAT...LON 3228 11093 3221 11095 3212 11091 3206 11112
      3218 11117 3232 11114
TIME...MOT...LOC 0204Z 80DEG 17KT 3220 11094

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

$$

EDWARDS


Action: Continued
Issued At: 2026-08-10 21:21:06

912 
WWUS55 KTWC 110220
SVSTWC

Severe Weather Statement
National Weather Service Tucson AZ
720 PM MST Mon Aug 10 2026

AZC019-110245-
/O.CON.KTWC.SV.W.0171.000000T0000Z-260811T0245Z/
Pima AZ-
720 PM MST Mon Aug 10 2026

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM MST FOR
NORTHEASTERN PIMA COUNTY...

At 720 PM MST, a severe thunderstorm was located near South Tucson,
moving west 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...
  Tucson, Drexel Heights, South Tucson, Pascua Pueblo Yaqui
  Reservation, San Xavier Community, Valencia West, Tucson Mountain
  Park, Tucson Estates, Tucson International Airport, Saguaro
  National Park West and San Xavier Mission.

This includes the following highways...
Interstate 19 between mile markers 57 and 63. Route 86 between mile
markers 161 and 171. Interstate 10 between mile markers 256 and 263.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing damaging winds and large
hail.

&&

LAT...LON 3225 11094 3221 11095 3212 11091 3206 11112
      3218 11117 3229 11115
TIME...MOT...LOC 0204Z 78DEG 16KT 3220 11092

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

$$

EDWARDS


Action: Continued
Issued At: 2026-08-10 21:35:37

234 
WWUS55 KTWC 110235
SVSTWC

Severe Weather Statement
National Weather Service Tucson AZ
735 PM MST Mon Aug 10 2026

AZC019-110245-
/O.CON.KTWC.SV.W.0171.000000T0000Z-260811T0245Z/
Pima AZ-
735 PM MST Mon Aug 10 2026

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM MST FOR
NORTHEASTERN PIMA COUNTY...

At 735 PM MST, a severe thunderstorm was located near Valencia West,
moving west at 15 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...
  Drexel Heights, Pascua Pueblo Yaqui Reservation, San Xavier
  Community, Valencia West, Tucson Mountain Park, Tucson Estates,
  Saguaro National Park West and San Xavier Mission.

This includes the following highways...
Interstate 19 between mile markers 57 and 60. Route 86 between mile
markers 161 and 170.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing damaging winds and large
hail.

&&

LAT...LON 3227 11102 3220 11102 3211 11095 3210 11098
      3206 11112 3218 11117 3229 11115
TIME...MOT...LOC 0220Z 78DEG 14KT 3218 11103

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

$$

EDWARDS



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