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Hydrometeorological Discussion
Issued by NWS Middle Atlantic RFC

000
AGUS71 KRHA 181413
HMDRHA

HYDROMETEOROLOGICAL DISCUSSION
MIDDLE ATLANTIC RIVER FORECAST CENTER
NATIONAL WEATHER SERVICE STATE COLLEGE PA
 1012 AM EDT SAT MAY 18 2013


SHOWERS AND THUNDERSTORMS DURING THE PAST 24 HOURS BECAME MORE
WIDESPREAD FROM THE MASON DIXON SOUTHWARD. HIGHEST AMOUNTS FROM 12Z
FRIDAY TO 12Z SATURDAY:

  Value  County                St  Location
   1.52  independent city      VA  Norfolk
   1.16  Botetourt             VA  Apple Orchard Mt IFL
   1.12  Botetourt             VA  Carvin Creek IFLOWS
   1.11  Amherst               VA  Glasgow 1 SE
   1.10  independent city      VA  Virginia Beach - Oce
   1.02  Goochland             VA  Crozier-State Farm
   1.00  independent city      VA  Norfolk NAS
   0.98  Botetourt             VA  Buchanan
   0.94  Roanoke               VA  Roanoke AP
   0.76  Prince George         VA  Prince George 3NE
   0.73  Botetourt             VA  Troutville 4.3WNW CO
   0.72  Roanoke               VA  Roanoke 8N
   0.66  Appomattox            VA  Appomattox
   0.65  James City            VA  Williamsburg 6.5NNW
   0.63  Sussex                VA  Wakefield ASOS

A NW-SE FRONT DRAPED ACROSS THE MID ATLANTIC REGION IS EXPECTED TO
DRIFT THROUGH THIS AREA FOR THE NEXT COUPLE OF DAYS.  DEEP MOISTURE AND
VERY UNSTABLE AIR ALONG WITH AN UPPER AIR DISTURBANCE WILL PRODUCE
NUMEROUS SHOWERS AND THUNDERSTORMS. SOME OF THE STORMS ARE EXPECTED TO
PRODUCE LOCALLY HEAVY RAINFALL.

DAY ONE QPF IS MAINLY ZERO ACROSS MOST OF THE NORTHERN BASINS TO 1-1.5
INCHES IN THE JAMES. DAY TWO IS ZERO IN THE NORTHERN PA AND NY BASINS
TO 1.5" IN THE LOWER JAMES BASIN. DAY THREE IS UNDER A TENTH IN NW
BASINS TO AROUND THREE TENTHS IN SE VA.

MINOR RISES ARE FORECAST IN LOWER SUSQUEHANNA BASIN AND MODERATE RISES
FOR THE JAMES OVER THE NEXT SEVERAL DAYS.
NNNN