586  
WGUS56 KSGX 121851  
FFWSGX  
CAC065-071-122145-  
/O.NEW.KSGX.FF.W.0009.180712T1851Z-180712T2145Z/  
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/  
 
BULLETIN - EAS ACTIVATION REQUESTED  
FLASH FLOOD WARNING  
NATIONAL WEATHER SERVICE SAN DIEGO CA  
1151 AM PDT THU JUL 12 2018  
 
THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A  
 
* FLASH FLOOD WARNING FOR...  
SAN BERNARDINO COUNTY IN SOUTHERN CALIFORNIA...  
RIVERSIDE COUNTY IN SOUTHERN CALIFORNIA...  
 
* UNTIL 245 PM PDT  
 
* AT 1144 AM PDT, DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING  
HEAVY RAIN ACROSS THE WARNED AREA OVER ONYX PEAK. FLASH FLOODING  
WILL LIKELY BEGIN SHORTLY IN CREEKS AROUND SOUTH BIG BEAR CITY,  
RAYWOOD FLATS AND DRAINING INTO THE SOUTH FORK WHITEWATER RIVER.  
URBAN FLOODING IS LIKELY AS WELL. RAINFALL RATES OF UP TO 0.75  
INCHES PER HOUR ARE EXPECTED. HEAVY RAIN COULD CAUSE ROCK OR  
DEBRIS SLIDES ON HIGHWAYS 38 AND 18.  
 
* SOME LOCATIONS THAT WILL LIKELY EXPERIENCE FLOODING INCLUDE...  
YUCAIPA, BIG BEAR CITY, MOUNT SAN GORGONIO, ONYX SUMMIT, FOREST  
FALLS, LUCERNE VALLEY, BANNING, BIG BEAR LAKE, SEVEN OAKS, MOUNTAIN  
HOME VILLAGE, HWY 38 BETWEEN ONYX SUMMIT AND SUGARLOAF, BALDWIN  
LAKE, ANGELUS OAKS, HWY 18 BETWEEN BALDWIN LAKE AND LUCERNE VALLEY,  
HWY 38 BETWEEN YUCAIPA AND ONYX SUMMIT, HWY 18 BETWEEN RUNNING  
SPRINGS AND BIG BEAR, WOODLANDS, FAWNSKIN, HEART BAR CAMPGROUND AND  
BARTON FLATS CAMPGROUND.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
TURN AROUND, DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD  
DEATHS OCCUR IN VEHICLES.  
 

 
 
LAT...LON 3403 11705 3438 11708 3442 11689 3425 11650  
3401 11678  
 

 
 
TARDY  
 
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