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Remnants of ALLISON Advisory Number 47
 
Issued 03:00Z Jun 17, 2001
 
Advisory Selection
View advisory number:  52   51   50   49   48   47   46   45   44   43   42   41   40   39   38   37   36   35   34   33   32   31   30   29   28   
27   26   25   24   23   22   21   20   19   18   17   16   15   14   13   12   11   10   9   8   7   6   5   

STORM SUMMARY NUMBER 47 FOR THE REMAINS OF "ALLISON" 
NATIONAL CENTERS FOR ENVIRONMENTAL PREDICTION
HYDROMETEOROLOGICAL PREDICTION CENTER...NWS...CAMP SPRINGS MD
1100 PM EDT SAT JUN 16 2001

THE SURFACE LOW ASSOCIATED WITH THE REMAINS OF "ALLISON" WAS
LOCATED NEAR 38.0N 75.4W...ON THE COAST OF THE DELMARVA PENINSULA 30 MILES
SOUTH-SOUTHWEST OF OCEAN CITY MARYLAND.  MAXIMUM SUSTAINED WINDS WERE
15 MPH NEAR THE CENTER...AND 20 TO 25 MPH JUST OFFSHORE THE DELMARVA. 
THE ESTIMATED CENTRAL PRESSURE OF THE SYSTEM IS 1006 MB...29.71 INCHES OF
MERCURY. AT 9 PM...THE PRESSURE AT WALLOPS ISLAND VIRGINIA HAD FALLEN
TO 1006.5 MB...29.73 INCHES.  MOVEMENT OF THE SYSTEM HAS BEEN STEADY TO THE
NORTH-NORTHEAST AT 5 MPH OVER THE PAST 24 HOURS. THIS TRACK IS
EXPECTED TO CONTINUE...WITH A BEND MORE TOWARDS THE NORTHEAST AND SOME
SLIGHT ACCELERATION WITH TIME. THIS WILL MOVE THE CENTER OFFSHORE
NEAR OCEAN CITY...THEN PARALLEL THE COAST OF NEW JERSEY OVER THE NEXT 24
HOURS AS IT HEADS TOWARD LONG ISLAND.

THE PRECIPITATION PATTERN AROUND THE SYSTEM REMAINS INTACT...BUT THE
HEAVIEST PRECIPITATION IS NOW FOCUSING FAR FROM THE CENTER IN TWO
AREAS...  ALONG THE SURFACE COLD FRONT NORTH OF THE CIRCULATION IN
PENNSYLVANIA AND NEW YORK WHERE MOISTURE FROM THE SYSTEM HAS
BEEN INFUSED...AND IN THE CONVERGENT SURFACE FLOW DOWN IN NORTH
CAROLINA AND NORTHEAST SOUTH CAROLINA BETWEEN THE SURFACE LOW AND THE
WEST/SOUTHWEST WINDS AHEAD OF THE COLD FRONT. THE COLD FRONT ITSELF IS
WEAKENING AS IT APPROACHES THE LOW...BUT IS NOW ONLY 85 MILES
NORTHWEST OF THE CENTER.

DOPPLER RADAR ESTIMATES THAT SINCE 8 AM EDT RAINS GREATER THAN SIX
INCHES HAVE FALLEN IN SOUTHEAST PENNSYLVANIA AND IN ISOLATED SPOTS
OF SOUTHEAST NORTH CAROLINA AND NORTHEAST SOUTH CAROLINA...WITH 5
INCH MAXIMA NEAR PORTSMOUTH AND RUSHMERE IN SOUTHEAST VIRGINIA. 
 
FLASH FLOOD WATCHES EXTEND FROM EASTERN NEW YORK SOUTHWARD
THROUGH NEW JERSEY AND EASTERN PENNSYLVANIA. FLASH FLOOD
WARNINGS ARE IN EFFECT UNTIL 12:30 AM EDT FOR CHENAGO AND BROOME COUNTY NEW
YORK WHERE UP TO 4.50 INCHES OF RAIN HAS ALREADY FALLEN. FLASH FLOOD
WARNINGS ARE IN EFFECT FOR SOUTHEAST CHESTER... DELAWARE...
PHILADELPHIA... MONTGOMERY...AND BUCKS COUNTIES IN PENNSYLVANIA AS
WELL AS NORTHERN NEW CASTLE COUNTY DELAWARE UNTIL 2:15 AM EDT....OVER
FOUR INCHES HAS FALLEN IN THOSE LOCATIONS. 

FLASH FLOOD AND FLOOD WARNINGS ARE ALSO IN EFFECT FOR WAKE AND
GREEN COUNTIES IN NORTH CAROLINA UNTIL 12:30 AM AND MIDNIGHT EDT
RESPECTIVELY.  FLOOD WARNINGS FOR RIVERS... STREAMS... AND BAYOUS CONTINUE IN A
BROKEN ARC FROM SOUTHEAST TEXAS EASTWARD ACROSS SOUTHERN LOUISIANA.
OTHER RIVER FLOOD WARNINGS ARE IN EFFECT FOR CENTRAL GEORGIA AND WESTERN
NEW JERSEY.

SELECTED 12 HOUR RAINFALL TOTALS INCLUDE:

NORTH CAROLINA (THROUGH 8 PM EDT, IN INCHES)

CHERRY POINT..........................1.97
LAURINBURG............................0.92

VIRGINIA (THROUGH 8 PM EDT, IN INCHES)

NORFOLK...............................4.01
NEWPORT NEWS..........................1.94
NORFOLK NAS...........................1.86
ACCOMACK..............................1.69
NATIONAL AIRPORT/CRYSTAL CITY.........1.57
RICHMOND..............................1.18

MARYLAND (THROUGH 8 PM EDT, IN INCHES)

PATUXENT RIVER........................1.86

PENNSYLVANIA (THROUGH 8 PM EDT, IN INCHES)

WILLOW GROVE NAVAL AIR STATION........4.99
HATBORO...............................4.60
SECANE................................4.30 THROUGH 7 PM EDT
ABINGTON..............................4.00 THROUGH 7:30 PM EDT
AMBLER................................3.14 THROUGH 7 PM EDT
HILLTOWN..............................2.81
DOYLESTOWN............................2.63

DELAWARE (THROUGH 8 PM EDT, IN INCHES)

NEWARK................................1.70
WILMINGTON............................1.62

NEW JERSEY (THROUGH 8 PM EDT, IN INCHES)

MOUNT HOLLY NWS.......................1.08

NEW YORK (THROUGH 8 PM EDT, IN INCHES)

BINGHAMTON............................3.34
TOWANDA 1 ESE.........................2.81
THOMPSON..............................2.05
WHITNEY POINT.........................2.05
PLATTSBURGH...........................1.02

THE NEXT STORM SUMMARY WILL BE ISSUED AT 5 AM EDT SUNDAY.   

ROTH/ FORECAST OPERATIONS BRANCH