Flash Flood Watch

From the National Weather Service:

Event:    Flash Flood Watch
Alert:    

...PERIODS OF HEAVY RAIN WITH POSSIBLE FLOODING THROUGH
THURSDAY...
 
...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THURSDAY
AFTERNOON...
 
THE FLASH FLOOD WATCH CONTINUES FOR
 
* A PORTION OF SOUTHEAST ARIZONA...INCLUDING THE FOLLOWING
AREAS...BABOQUIVARI MOUNTAINS...CATALINA AND RINCON
MOUNTAINS...CHIRICAHUA MOUNTAINS...DRAGOON AND MULE AND
HUACHUCA AND SANTA RITA MOUNTAINS...EASTERN COCHISE COUNTY
BELOW 5000 FEET...GALIURO AND PINALENO MOUNTAINS...SOUTH
CENTRAL PINAL COUNTY...SOUTHEAST PINAL COUNTY...TOHONO O`ODHAM
NATION...TUCSON METRO AREA...UPPER GILA RIVER VALLEY...UPPER
SAN PEDRO RIVER VALLEY...UPPER SANTA CRUZ RIVER VALLEY/ALTAR
VALLEY...WESTERN PIMA COUNTY AND WHITE MOUNTAINS OF GRAHAM AND
GREENLEE COUNTIES.
 
* THROUGH THURSDAY AFTERNOON
 
* SHOWERS AND PERHAPS A FEW THUNDERSTORMS WILL CONTINUE TO MOVE
ACROSS THE AREA THIS AFTERNOON AND TONIGHT FROM MEXICO WITH
LOCALLY HEAVY RAIN. THE HEAVIEST AND MOST WIDESPREAD RAINS ARE
EXPECTED AS THE REMNANTS OF ODILE MOVE ACROSS NORTHWEST PORTIONS
OF SONORA MEXICO LATE THIS AFTERNOON. RAINFALL AMOUNTS WILL VARY
WIDELY ACROSS THE AREA...BUT THE HEAVIEST STORM TOTAL RAINFALL
AMOUNTS THROUGH LATE THURSDAY WILL LIKELY RANGE FROM 3 TO 5
INCHES...WITH LOCALIZED AMOUNTS OF 5 TO NEAR 8
INCHES...ESPECIALLY OVER SOME OF THE MOUNTAIN TOPS. THIS SWATH
OF HEAVY RAIN WILL EXTEND FROM SOUTH CENTRAL PIMA COUNTY...WHICH
INCLUDES THE TOHONO O`ODHAM NATION...THROUGH MUCH OF SANTA CRUZ
COUNTY...EXTREME SOUTHEAST PORTIONS OF PIMA COUNTY NEAR GREEN
VALLEY...VAIL AND SAHUARITA. IN ADDITION...WESTERN AND
SOUTHWESTERN PORTIONS OF COCHISE COUNTY WILL BE IMPACTED WITH
HEAVY RAIN TOTALS. THE SIERRA VISTA AREA HAS ALREADY RECEIVED
SIGNIFICANT RAINFALL OVERNIGHT...WITH MORE THAN 2 INCHES
REPORTED. WITH ADDITIONAL RAINS HEADED TO AREAS ALREADY IMPACTED
BY RAINS OVERNIGHT AND THIS MORNING...WE SHOULD SEE AT LEAST
LOCALIZED FLASH FLOODING THROUGH THIS AFTERNOON...WITH PERHAPS
MORE WIDESPREAD FLOODING CONCERNS THIS EVENING. AREAS TO THE FAR
WEST...SUCH AS KITT PEAK TO NEAR AJO WILL SEE LESSER RAINFALL
AMOUNTS...WITH STORM TOTALS RANGING FROM 1 TO 2 INCHES...WITH
ISOLATED AMOUNTS PERHAPS IN THE 2 TO 3 INCH RANGE.

Instructions:    A FLASH FLOOD WATCH MEANS THAT CONDITIONS ARE BECOMING FAVORABLE FOR WIDESPREAD FLASH FLOODING TO DEVELOP. MONITOR FORECASTS CLOSELY AND BE READY TO TAKE QUICK ACTION IF FLASH FLOOD WARNINGS ARE ISSUED. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLASH FLOODS. IF FLASH FLOODING IS OBSERVED...ACT QUICKLY. TURN AROUND AND TAKE ANOTHER ROUTE. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TELEVISION STATIONS...OR YOUR CABLE TELEVISION PROVIDER FOR UPDATES ON THIS FLASH FLOOD THREAT.
Target Area:    
Baboquivari Mountains including Kitt Peak
Chiricahua Mountains including Chiricahua National Monument
Dragoon, Mule, Huachuca and Santa Rita Mountains including Bisbee, Canelo Hills, Madera Canyon
Eastern Cochise County Below 5000 Feet including Douglas, Willcox
Galiuro and Pinaleno Mountains including Mount Graham
Santa Catalina and Rincon Mountains including Mount Lemmon, Summerhaven
South Central Pinal County including Eloy, Picacho Peak State Park
Southeast Pinal County including Kearny, Mammoth, Oracle
Tohono O'odham Nation including Sells
Tucson Metro Area including Tucson, Green Valley, Marana, Vail
Upper Gila River and Aravaipa Valleys including Clifton, Safford
Upper San Pedro River Valley including Sierra Vista, Benson
Upper Santa Cruz River and Altar Valleys including Nogales
Western Pima County Including Ajo, Organ Pipe Cactus National Monument
White Mountains of Graham and Greenlee Counties including Hannagan Meadow