478
WGUS65 KTWC 110453
FFATWC
FLOOD WATCH
NATIONAL WEATHER SERVICE TUCSON AZ
953 PM MST MON AUG 10 2026
AZZ503-504-514-111300-
/O.EXP.KTWC.FA.A.0007.000000T0000Z-260811T0500Z/
/O.CON.KTWC.FA.A.0008.260811T2100Z-260812T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
UPPER SANTA CRUZ RIVER VALLEY/ALTAR VALLEY-TUCSON METRO AREA-
CATALINA AND RINCON MOUNTAINS-
INCLUDING THE CITIES OF NOGALES, MOUNT LEMMON, SUMMERHAVEN, VAIL,
GREEN VALLEY, MARANA, AND TUCSON
953 PM MST MON AUG 10 2026
..FLOOD WATCH WILL EXPIRE AT 10 PM MST THIS EVENING
THE FLOOD WATCH WILL EXPIRE FOR A PORTION OF SOUTHEAST ARIZONA,
INCLUDING THE FOLLOWING AREAS, CATALINA AND RINCON MOUNTAINS, TUCSON
METRO AREA AND UPPER SANTA CRUZ RIVER VALLEY/ALTAR VALLEY.
THE FLASH FLOODING THREAT HAS ENDED. THEREFORE, THE FLOOD WATCH WILL
EXPIRE AT 10 PM MST THIS EVENING.
...FLOOD WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON THROUGH
TUESDAY EVENING...
* WHAT...FLASH FLOODING CAUSED BY EXCESSIVE RAINFALL CONTINUES TO BE
POSSIBLE.
* WHERE...A PORTION OF SOUTHEAST ARIZONA, INCLUDING THE FOLLOWING
AREAS, CATALINA AND RINCON MOUNTAINS, TUCSON METRO AREA AND UPPER
SANTA CRUZ RIVER VALLEY/ALTAR VALLEY.
* WHEN...FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING.
* IMPACTS...EXCESSIVE RUNOFF MAY RESULT IN FLOODING OF RIVERS,
CREEKS, STREAMS, AND OTHER LOW-LYING AND FLOOD-PRONE LOCATIONS.
FLOODING MAY OCCUR IN POOR DRAINAGE AND URBAN AREAS. LOW-WATER
CROSSINGS MAY BE FLOODED.
* ADDITIONAL DETAILS...
- ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS IS EXPECTED TUESDAY
AFTERNOON AND EVENING. ADDITIONAL RAINFALL FROM THE PREVIOUS DAY
WILL RESULT IN FASTER RESPONSES IN NORMALLY DRY WASHES, CREEKS
AND ROADWAY DIPS. RAINFALL RATES IN EXCESS OF 1 INCH PER HOUR ARE
EXPECTED WITH THE STRONGER STORMS WITH ISOLATED AREAS HAVING THE
POTENTIAL OF 1-3 INCHES.
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD
PRECAUTIONARY/PREPAREDNESS ACTIONS...
YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.
AZZ501-502-505-506-515-110600-
/O.EXP.KTWC.FA.A.0007.000000T0000Z-260811T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WESTERN PIMA COUNTY-TOHONO O'ODHAM NATION-SOUTH CENTRAL PINAL
COUNTY-SOUTHEAST PINAL COUNTY-BABOQUIVARI MOUNTAINS-
INCLUDING THE CITIES OF ORGAN PIPE CACTUS N.M., PICACHO PEAK
STATE PARK, SELLS, ORACLE, KITT PEAK, MAMMOTH, AND AJO
953 PM MST MON AUG 10 2026
..FLOOD WATCH WILL EXPIRE AT 10 PM MST THIS EVENING
THE FLOOD WATCH WILL EXPIRE FOR A PORTION OF SOUTHEAST ARIZONA,
INCLUDING THE FOLLOWING AREAS, BABOQUIVARI MOUNTAINS, SOUTH CENTRAL
PINAL COUNTY, SOUTHEAST PINAL COUNTY, TOHONO O'ODHAM NATION AND
WESTERN PIMA COUNTY.
THE FLASH FLOODING THREAT HAS ENDED. THEREFORE, THE FLOOD WATCH WILL
EXPIRE AT 10 PM MST THIS EVENING.
AZZ507>509-511>513-111300-
/O.CON.KTWC.FA.A.0008.260811T2100Z-260812T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
UPPER SAN PEDRO RIVER VALLEY-EASTERN COCHISE COUNTY BELOW
5000 FEET-UPPER GILA RIVER VALLEY-GALIURO AND PINALENO MOUNTAINS-
CHIRICAHUA MOUNTAINS-DRAGOON AND MULE AND HUACHUCA AND SANTA RITA
MOUNTAINS-
INCLUDING THE CITIES OF MADERA CANYON, SAFFORD, WILLCOX, CANELO
HILLS, MOUNT GRAHAM, SIERRA VISTA, CLIFTON, DOUGLAS, CHIRICAHUA
N.M., BISBEE, AND BENSON
953 PM MST MON AUG 10 2026
...FLOOD WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON THROUGH
TUESDAY EVENING...
* WHAT...FLASH FLOODING CAUSED BY EXCESSIVE RAINFALL CONTINUES TO BE
POSSIBLE.
* WHERE...A PORTION OF SOUTHEAST ARIZONA, INCLUDING THE FOLLOWING
AREAS, CHIRICAHUA MOUNTAINS, DRAGOON AND MULE AND HUACHUCA AND
SANTA RITA MOUNTAINS, EASTERN COCHISE COUNTY BELOW 5000 FEET,
GALIURO AND PINALENO MOUNTAINS, UPPER GILA RIVER VALLEY AND UPPER
SAN PEDRO RIVER VALLEY.
* WHEN...FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING.
* IMPACTS...EXCESSIVE RUNOFF MAY RESULT IN FLOODING OF RIVERS,
CREEKS, STREAMS, AND OTHER LOW-LYING AND FLOOD-PRONE LOCATIONS.
FLOODING MAY OCCUR IN POOR DRAINAGE AND URBAN AREAS. LOW-WATER
CROSSINGS MAY BE FLOODED.
* ADDITIONAL DETAILS...
- AN INCREASE IN DEEP MOISTURE IS EXPECTED TOMORROW AFTERNOON
BRINGING SCATTERED TO NUMEROUS THUNDERSTORMS. RAINFALL RATES IN
EXCESS OF 1 INCH PER HOUR ARE EXPECTED WITH THE STRONGER STORMS
WITH ISOLATED AREAS HAVING THE POTENTIAL OF 1-3 INCHES.
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD
PRECAUTIONARY/PREPAREDNESS ACTIONS...
YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.
KJS
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