ZCZC NFDSCCNS5 ALL TTAA00 KNFD DDHHMM STORM SUMMARY NUMBER 54 FOR T.D. "DENNIS" NATIONAL CENTERS FOR ENVIRONMENTAL PREDICTION HYDROMETEOROLOGICAL PREDICTION CENTER...NWS...CAMP SPRINGS MD 115 AM EDT MON SEP 06 1999 AT 100 AM EDT... THE CENTER OF TROPICAL DEPRESSION DENNIS WAS LOCATED AT LATITUDE 36.5 NORTH 79.9 WEST LONGITUDE...OR JUST NORTH OF GREENSBORO, NORTH CAROLINA. MAXIMUM SUSTAINED WINDS HAVE DECREASED TO 15 MILES AND HOUR...WITH SOME HIGHER SPEEDS ALONG COASTAL SECTIONS OF NORTH CAROLINA AND VIRGINIA. THE MINIMUM CENTRAL PRESSURE OF SLOWLY WEAKENING DENNIS IS UP TO 1003 MB. BOTH SATELLITE AND RADAR TRENDS INDICATE THAT DENNIS HAS BEGUN A TURN TO THE NORTH NORTHEAST AT 5 MILES AN HOUR. AN INCREASE IN FORWARD SPEED IS EXPECTED DURING THE DAY MONDAY AS DENNIS INTERACTS WITH A MID AND UPPER LEVEL TROUGH APPROACHING FROM THE UPPER MIDWEST. WHILE DENNIS WILL CONTINUE TO SLOWLY WEAKEN...THE MAIN THREAT FROM THE SYSTEM THE NEXT 24 HOURS WILL BE FROM LOCALLY HEAVY RAINFALL...RESULTING IN A CONTINUED THREAT OF FLOODING AND FLASH FLOODING. FLASH FLOOD WATCHES ARE IN EFFECT OVERNIGHT FOR MUCH OF WESTERN AND SOUTH CENTRAL VIRGINIA...EXTREME WESTERN MARYLAND...PARTS OF THE EASTERN WEST VIRGINIA PANHANDLE AND FOR PORTIONS OF THE NORTHEAST PIEDMONT OF NORTH CAROLINA. IN ADDITION...TROPICAL RAINS WITH THE SYSTEM HAVE BEEN FELT AS FAR NORTH AS SOUTHEAST PENNSYLVANIA TONIGHT...WHERE A FLOOD WARNING HAS BEEN ISSUED FOR CHESTER COUNTY DUE TO RISING SMALL STREAMS RAINFALL AMOUNTS IN EXCESS OF SIX INCHES HAVE FALLEN ACROSS THE UPSLOPE AREAS OF THE BLUE RIDGE MOUNTAINS IN VIRGINIA...WHERE A STORM TOTAL OF 8.44 INCHES WAS REPORTED AT MILLS CREEK IN AUGUSTA COUNTY. IN SOUTH CENTRAL VIRGINIA...APPLE ORCHARD MOUNTAIN IN BEDFORD COUNTY REPORTED A STORM TOTAL OF 8.83 INCHES...AND ACROSS PORTIONS OF THE NORTHEAST PIEDMONT OF NORTH CAROLINA...4 TO 6 INCHES OF RAIN HAVE FALLEN ADDITIONAL RAINFALL AMOUNTS OF 3-6 INCHES CAN BE EXPECTED THROUGH TODAY IN BANDED HEAVY RAIN AND UPSLOPE AREAS ACROSS NORTH CENTRAL NORTH CAROLINA AND VIRGINIA. THE NEXT STORM SUMMARY ON DENNIS WILL ISSUED AT 700 AM EDT. WALLY/FORECAST OPERATIONS BRANCH