Flash Flood Warning 20, NWS Raleigh, NC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RALEIGH NC
305 AM EDT MON JUN 25 2001

VORTICES ROTATING ABOUT UPPER LOW CENTERED ACROSS E TN RESPONSIBLE
FOR NUMEROUS SHOWERS ONGOING ACROSS THE FOOTHILLS AND WESTERN
PIEDMONT OF NC THIS MORNING. AFTER DIMINISHING FOR A FEW HOURS
EARLIER... CONVECTION HAS BECOME MORE NUMEROUS RECENTLY WITH LOCALLY
HEAVY RAIN ACROSS SOUTHERN FOOTHILLS.

UPPER LOW WILL BEGIN ITS WESTWARD MOTION LATER TODAY AS RIDGE OFF
THE EAST COAST BUILDS WEST. WILL RAISE POPS ACROSS WESTERN ZONES TO
60 AND KEEP 20 TO 30 POP ACROSS THE EAST AND SOUTH. WITH CIRCULATION
CENTER MOVING SLOWLY TODAY...SOME SIGNIFICANT RAINFALL IS POSSIBLE
ACROSS FAR WESTERN PORTIONS OF CWA.

ENOUGH UPPER LEVEL DIVERGENCE AND SYNOPTIC SCALE LIFT TONIGHT TO
WARRANT A 30 POP ACROSS WESTERN ZONES TONIGHT AND 20 IN THE SOUTH
WITH NO MENTION OF RAIN ELSEWHERE. SFC TROF ACROSS THE COASTAL
REGION EARLY TUESDAY LIFTS WEST ACROSS CWA DURING THE AFTERNOON.
DEWPOINTS BEHIND BOUNDARY RISE INTO THE UPPER 60S TO LOWER 70S. BEST
LOW LEVEL CONVERGENCE DURING THE AFTERNOON APPEARS ACROSS CENTRAL
AND WESTERN ZONES SO WILL KEEP LOW CHANCE POPS THERE.

UPPER LOW FORECAST TO MOVE BACK INTO THE MISSISSIPPI VALLEY DURING
THE EXTENDED PERIOD. RIDGE BUILDS INTO THE COASTAL AREAS WITH BEST
MOISTURE PLUME ACROSS WESTERN PARTS OF CWA AND POINTS WEST. WEAK
FRONT APPROACHES REGION FROM THE NORTH DURING THE WEEKEND WITH A
GENERAL SW FLOW AHEAD OF IT. PATTERN SUPPORTS UNSETTLED WEATHER WITH
SCT DIURNALLY DRIVEN CONVECTION.

.RAH...NONE.

BLAES

NCZ021-022-038-039-073-074-083-251030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
315 AM EDT MON JUN 25 2001
ANSON-DAVIDSON-FORSYTH-GUILFORD-MONTGOMERY-RANDOLPH-STANLY-

...SHOWERS AND THUNDERSTORMS WITH VERY HEAVY RAIN OVER THE
WESTERN PIEDMONT...

SHOWERS AND THUNDERSTORMS WILL CONTINUE TO MOVE SLOWLY TO THE
NORTHWEST AT 5 TO 10 MPH ACROSS STANLY... DAVIDSON... NORTH
RANDOLPH... SOUTHERN GUILFORD... AND INTO FORSYTH COUNTY
THROUGH 600 AM. SOME OF THE THUNDERSTORMS WILL PRODUCE VERY
HEAVY RAINFALL ESPECIALLY FROM HIGH ROCK AND ALBEMARLE...
OVER TO THOMASVILLE... ARCHDALE AND HIGH POINT. FLOODING OF
LOW LYING AND POOR DRAINAGE AREAS WILL LIKELY OCCUR DURING PERIODS
OF HEAVY RAINFALL. MOTORISTS ARE URGED TO USE CAUTION THIS MORNING.
WATCH FOR POSSIBLE STREET AND ROAD FLOODING. REMEMBER NEVER TO
DRIVE A VEHICLE ACROSS FLOWING WATER.

NATIONAL WEATHER SERVICE RADAR INDICATED BETWEEN 2 AND 3.5 INCHES
OF RAIN HAD ALREADY FALLEN OVER PORTIONS OF SOUTH DAVIDSON
COUNTY NEAR HIGH ROCK LAKE BETWEEN 1200 AM AND 300 AM. THE
STRONGEST STORMS HAD MOVED NORTH OF THIS AREA AS OF 300 AM.
HOWEVER... IF THE THUNDERSTORMS CONTINUE TO REDEVELOP AND MOVE OVER
THE SAME AREAS... A FLASH FLOOD WARNING MAY BE ISSUED FOR PORTIONS
OF DAVIDSON COUNTY BEFORE 500 AM. IF A WARNING IS ISSUED OR
IF FLOODING IS OBSERVED... MOVE QUICKLY TO HIGHER GROUND.

LISTEN TO NOAA WEATHER RADIO OR LOCAL MEDIA FOR THE LATEST
INFORMATION FROM NATIONAL WEATHER SERVICE.

BADGETT