859
WGUS65 KTWC 101812
FFATWC
URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE TUCSON AZ
1112 AM MST MON AUG 10 2026
AZZ514-111400-
/O.EXA.KTWC.FA.A.0008.260811T2100Z-260812T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
/O.CON.KTWC.FA.A.0007.260810T2100Z-260811T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CATALINA AND RINCON MOUNTAINS-
INCLUDING THE CITIES OF MOUNT LEMMON AND SUMMERHAVEN
1112 AM MST MON AUG 10 2026
...FLOOD WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH TUESDAY
EVENING...
* WHAT...FLASH FLOODING CAUSED BY EXCESSIVE RAINFALL CONTINUES TO BE
POSSIBLE.
* WHERE...NORTHEAST PIMA COUNTY INCLUDING THE CATALINA AND RINCON
MOUNTAINS.
* WHEN...FROM 2 PM MST TUESDAY AFTERNOON THROUGH 11 PM MST TUESDAY
EVENING.
* IMPACTS...EXCESSIVE RAINFALL RUNOFF MAY RESULT IN FLASH FLOODING OF
NORMALLY DRY WASHES, ROADWAY DIPS AND OTHER LOW-LYING AREAS.
* 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.
..FLOOD WATCH REMAINS IN EFFECT UNTIL 10 PM MST THIS EVENING
* WHAT...FLASH FLOODING CAUSED BY EXCESSIVE RAINFALL CONTINUES TO BE
POSSIBLE.
* WHERE...WESTERN PIMA, CENTRAL PIMA, AND SOUTHEASTERN PINAL
COUNTIES.
* WHEN...UNTIL 10 PM MST THIS 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...
- SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED THIS AFTERNOON
INTO THIS EVENING. RAINFALL RATES IN EXCESS OF 1 INCH PER HOUR
ARE EXPECTED WITH THE STRONGER STORMS WITH ISOLATED AREAS HAVING
THE POTENTIAL OF 2 INCHES OR MORE IN AN HOUR.
- 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.
AZZ503-504-111400-
/O.CON.KTWC.FA.A.0007.260810T2100Z-260811T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
/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-
INCLUDING THE CITIES OF VAIL, MARANA, GREEN VALLEY, NOGALES, AND
TUCSON
1112 AM MST MON AUG 10 2026
..FLOOD WATCH REMAINS IN EFFECT UNTIL 10 PM MST THIS EVENING
* WHAT...FLASH FLOODING CAUSED BY EXCESSIVE RAINFALL CONTINUES TO BE
POSSIBLE.
* WHERE...TUCSON METRO AND SANTA CRUZ COUNTY.
* WHEN...UNTIL 10 PM MST THIS 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...
- SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED THIS AFTERNOON
INTO THIS EVENING. RAINFALL RATES IN EXCESS OF 1 INCH PER HOUR
ARE EXPECTED WITH THE STRONGER STORMS WITH ISOLATED AREAS HAVING
THE POTENTIAL OF 2 INCHES OR MORE IN AN HOUR.
- 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.
...FLOOD WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON THROUGH
TUESDAY EVENING...
* WHAT...FLASH FLOODING CAUSED BY EXCESSIVE RAINFALL CONTINUES TO BE
POSSIBLE.
* WHERE...TUCSON METRO AND SANTA CRUZ COUNTY.
* WHEN...FROM 2 PM MST TUESDAY AFTERNOON THROUGH 11 PM MST 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.
AZZ501-502-505-506-515-110500-
/O.CON.KTWC.FA.A.0007.260810T2100Z-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 AJO, ORACLE, PICACHO PEAK STATE PARK,
ORGAN PIPE CACTUS N.M., KITT PEAK, MAMMOTH, AND SELLS
1112 AM MST MON AUG 10 2026
..FLOOD WATCH REMAINS IN EFFECT UNTIL 10 PM MST THIS EVENING
* WHAT...FLASH FLOODING CAUSED BY EXCESSIVE RAINFALL CONTINUES TO BE
POSSIBLE.
* WHERE...WESTERN PIMA, CENTRAL PIMA, AND SOUTHEASTERN PINAL
COUNTIES.
* WHEN...UNTIL 10 PM MST THIS 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...
- SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED THIS AFTERNOON
INTO THIS EVENING. RAINFALL RATES IN EXCESS OF 1 INCH PER HOUR
ARE EXPECTED WITH THE STRONGER STORMS WITH ISOLATED AREAS HAVING
THE POTENTIAL OF 2 INCHES OR MORE IN AN HOUR.
- 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.
AZZ507>509-511>513-111400-
/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 DOUGLAS, CLIFTON, SAFFORD, MADERA CANYON,
SIERRA VISTA, BENSON, MOUNT GRAHAM, BISBEE, CANELO HILLS,
CHIRICAHUA N.M., AND WILLCOX
1112 AM 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...COCHISE COUNTY AND THE VALLEYS OF GRAHAM AND GREENLEE
COUNTIES.
* WHEN...FROM 2 PM MST TUESDAY AFTERNOON THROUGH 11 PM MST 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.
JT
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page