401
WGUS55 KPSR 172159
FFWPSR
CAC065-180100-
/O.NEW.KPSR.FF.W.0040.250917T2159Z-250918T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PHOENIX AZ
259 PM PDT WED SEP 17 2025
THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A
* FLASH FLOOD WARNING FOR...
RIVERSIDE COUNTY IN SOUTHERN CALIFORNIA...
* UNTIL 600 PM PDT.
* AT 259 PM PDT, DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. BETWEEN 0.5 AND 1.5 INCHES OF
RAIN HAVE FALLEN. ADDITIONAL RAINFALL AMOUNTS OF 0.5 TO 1 INCH ARE
POSSIBLE IN THE WARNED AREA. FLASH FLOODING IS ONGOING OR EXPECTED
TO BEGIN SHORTLY.
HAZARD...LIFE THREATENING FLASH FLOODING. THUNDERSTORMS
PRODUCING FLASH FLOODING.
SOURCE...RADAR.
IMPACT...LIFE THREATENING FLASH FLOODING OF CREEKS AND STREAMS,
URBAN AREAS, HIGHWAYS, STREETS AND UNDERPASSES.
* SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
CHIRIACO SUMMIT AND COTTONWOOD VISITOR.
COTTONWOOD CAMPGROUND AND BLM JOSHUA TREE SOUTH CAMPGROUND.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND, DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO CROSS FLOODED
ROADS. FIND AN ALTERNATE ROUTE.
FLOODING IS OCCURRING OR IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE
YOU ARE RELATIVE TO STREAMS, RIVERS, OR CREEKS WHICH CAN BECOME
KILLERS IN HEAVY RAINS. CAMPERS AND HIKERS SHOULD AVOID STREAMS OR
CREEKS.
LAT...LON 3362 11595 3367 11584 3375 11585 3382 11577
3365 11565 3364 11582 3357 11595
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
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