FLASH FLOOD WATCH IN EFFECT UNTIL MIDNIGHT MST /MIDNIGHT PDT/ TONIGHT…

THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A

* FLASH FLOOD WATCH FOR PORTIONS OF ARIZONA AND CALIFORNIA… INCLUDING THE FOLLOWING AREAS… IN ARIZONA… LOWER COLORADO RIVER VALLEY AZ… SOUTHWEST DESERTS… WEST CENTRAL DESERTS AND YUMA/MARTINEZ LAKE AND VICINITY. IN CALIFORNIA… IMPERIAL COUNTY… JOSHUA TREE NATIONAL PARK… LOWER COLORADO RIVER VALLEY CA AND RIVERSIDE COUNTY/EASTERN DESERTS.

* UNTIL MIDNIGHT MST /MIDNIGHT PDT/ TONIGHT

* A NEARLY STATIONARY UPPER AIR DISTURBANCE WILL INTERACT WITH A VERY MOIST AND MODERATELY UNSTABLE AIR MASS TO GENERATE NUMEROUS SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND EVENING. LOCALLY HEAVY RAIN… ENOUGH TO CAUSE FLOODING… WILL BE POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A FLASH FLOOD WATCH MEANS THAT FLOODING OF WASHES… CREEKS AND OTHER DRAINAGE AREAS IS POSSIBLE WITHIN THE WATCH AREA. IF YOU ARE IN THE WATCH AREA… YOU SHOULD WATCH THE WEATHER AND BE PREPARED TO TAKE IMMEDIATE ACTION SHOULD HEAVY RAIN AND FLOODING OCCUR OR A FLASH FLOOD WARNING BE ISSUED.

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STAY UP-TO-DATE ON THE LATEST FORECASTS BY LISTENING TO WEATHER RADIO ON THE PUBLIC SERVICE BAND. MORE DETAILED INFORMATION IS AVAILABLE FROM THE NATIONAL WEATHER SERVICE IN PHOENIX ON THE INTERNET AT

More Information

… LOCALLY HEAVY RAIN THIS AFTERNOON AND EVENING…

.A WEATHER DISTURBANCE OVER THE LOWER COLORADO RIVER VALLEY WILL INTERACT WITH A VERY MOIST AND UNSTABLE ATMOSPHERE TO TRIGGER SLOW MOVING SHOWERS AND THUNDERSTORMS. SOME STORMS WILL PRODUCE LOCALLY HEAVY RAIN… WHICH MAY RESULT IN FLOODED ROADWAYS AND WASHES.

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