

000 

WGUS71 KCTP 202110

FFSCTP



FLASH FLOOD STATEMENT

NATIONAL WEATHER SERVICE STATE COLLEGE PA

509 PM EDT MON AUG 20 2007



PAC111-210030-

SOMERSET PA-

509 PM EDT MON AUG 20 2007



...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM EDT FOR

SOMERSET COUNTY...



AT 457 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED THE 

HEAVIEST RAINFALL MOVING EAST OF THE AREA. AFTER A BRIEF LULL IN THE 

PRECIPITATION...ADDITIONAL THUNDERSTORMS CAPABLE OF PRODUCING 

LOCALLY HEAVY RAINFALL WILL MOVE BACK INTO THE WARNED AREA FROM THE 

WEST LATER THIS EVENING.



LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SOMERSET AND

WINDBER.



AUTOMATED RAIN GAGE REPORTS INDICATE THAT UP TO ONE INCH OF RAIN 

HAS FALLEN IN THE LAST HOUR...WITH STORM TOTALS APPROACHING TWO TO 

THREE INCHES IN SOME AREAS. THE HEAVIEST RAINFALL HAS FALLEN OVER 

THE SOUTHERN PORTION OF THE COUNTY...ALONG AND SOUTH OF THE 

PENNSYLVANIA TURNPIKE. 



ADDITIONAL RAINFALL AMOUNTS OF ONE TO THREE INCHES ARE POSSIBLE IN 

THE WARNED AREA.



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.



IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE

POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS

FLOODED ROADS. FIND ALTERNATE ROUTES. IT TAKES ONLY A FEW INCHES OF

SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.



DO NOT UNDERESTIMATE THE POWER OF FLOOD WATERS. ONLY A FEW INCHES OF

RAPIDLY FLOWING WATER CAN QUICKLY CARRY AWAY YOUR VEHICLE.



LAT...LON 3997 7936 4029 7902 4027 7890 4025 7889

      4024 7885 4022 7866 4010 7872 4007 7876

      3993 7875 3973 7882 3973 7938

TIME...MOT...LOC 2103Z 180DEG 0KT 4009 7898



$$



FORECASTER: STEINBUGL



000 

WGUS71 KCTP 202110

FFSCTP



FLASH FLOOD STATEMENT

NATIONAL WEATHER SERVICE STATE COLLEGE PA

509 PM EDT MON AUG 20 2007



PAC111-210030-

SOMERSET PA-

509 PM EDT MON AUG 20 2007



...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM EDT FOR

SOMERSET COUNTY...



AT 457 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED THE 

HEAVIEST RAINFALL MOVING EAST OF THE AREA. AFTER A BRIEF LULL IN THE 

PRECIPITATION...ADDITIONAL THUNDERSTORMS CAPABLE OF PRODUCING 

LOCALLY HEAVY RAINFALL WILL MOVE BACK INTO THE WARNED AREA FROM THE 

WEST LATER THIS EVENING.



LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SOMERSET AND

WINDBER.



AUTOMATED RAIN GAGE REPORTS INDICATE THAT UP TO ONE INCH OF RAIN 

HAS FALLEN IN THE LAST HOUR...WITH STORM TOTALS APPROACHING TWO TO 

THREE INCHES IN SOME AREAS. THE HEAVIEST RAINFALL HAS FALLEN OVER 

THE SOUTHERN PORTION OF THE COUNTY...ALONG AND SOUTH OF THE 

PENNSYLVANIA TURNPIKE. 



ADDITIONAL RAINFALL AMOUNTS OF ONE TO THREE INCHES ARE POSSIBLE IN 

THE WARNED AREA.



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.



IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE

POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS

FLOODED ROADS. FIND ALTERNATE ROUTES. IT TAKES ONLY A FEW INCHES OF

SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.



DO NOT UNDERESTIMATE THE POWER OF FLOOD WATERS. ONLY A FEW INCHES OF

RAPIDLY FLOWING WATER CAN QUICKLY CARRY AWAY YOUR VEHICLE.



LAT...LON 3997 7936 4029 7902 4027 7890 4025 7889

      4024 7885 4022 7866 4010 7872 4007 7876

      3993 7875 3973 7882 3973 7938

TIME...MOT...LOC 2103Z 180DEG 0KT 4009 7898



$$



FORECASTER: STEINBUGL

