Reed Timmer: Meteorologist and Extreme Storm Chaser Major flash flooding in several locations in southern California continue as heavy rain continues to hammer the interior, including locations where wildfires have been widespread... leading to debris flows and mudslides. FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SAN DIEGO CA 352 PM PDT SUN AUG 25 2013 CAC073-260100- /O.CON.KSGX.FF.W.0036.000000T0000Z-130826T0100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ SAN DIEGO CA- 352 PM PDT SUN AUG 25 2013 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 600 PM PDT FOR NORTHEASTERN SAN DIEGO COUNTY... AT 338 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE HEAVY RAIN PRODUCING FLASH FLOODING OVER THE WARNED AREA. HEAVIEST RAINFALL EXTENDED FROM SHELTER VALLEY NORTH TO BORREGO SPRINGS. THIS INCLUDES THE VALLECITO FIRE COMPLEX BURN AREA...AND THE BANNER BURN AREA...WHERE DEBRIS FLOWS ARE LIKELY OCCURRING. CANYONS...INCLUDING THE BORREGO PALM CANYON...IN NORTHEASTERN SAN DIEGO COUNTY WILL HAVE SUDDEN WATER RISES THROUGH 430 PM. HEAVY RAINS WILL CONTINUE THROUGH 430 PM...THEN GRADUALLY WEAKEN AFTER THAT. STORMS WILL MOVE VERY SLOWLY TO THE NORTHEAST...RESULTING IN LONG DURATIONS OF THE HEAVY RAINS. LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BORREGO SPRINGS PRECAUTIONARY/PREPAREDNESS ACTIONS... WATERSHEDS BURNED IN 2012 WITHIN THE WILSON FIRE BURN AREA OF THE VALLECITO LIGHTNING COMPLEX ARE PARTICULARLY SUSCEPTIBLE TO FLASH FLOODS AND DEBRIS FLOWS FROM THIS RAINSTORM. ROADS...TRAILS...AND CAMPGROUNDS LOCATED ALONG DRAINAGES WITHIN OR BELOW THE BURNED BASINS CAN BE IMPACTED BY FLASH FLOODS AND DEBRIS FLOWS. FOR MORE INFORMATION ON POST-FIRE DEBRIS FLOWS AND WHAT TO DO IF YOU LIVE NEAR A RECENTLY BURNED AREA...GO TO LANDSLIDES.USGS.GOV/RESEARCH/WILDFIRE/ EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.
Posted on: Mon, 26 Aug 2013 00:53:53 +0000
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