Hydrometeorological Discussion
Issued by NWS Middle Atlantic RFC

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AGUS71 KRHA 201355
HMDRHA

HYDROMETEOROLOGICAL DISCUSSION
MIDDLE ATLANTIC RIVER FORECAST CENTER
NATIONAL WEATHER SERVICE STATE COLLEGE PA
 950 AM EDT MON APR 20 2015

...A GOOD SOAKING RAINFALL FOR THE MID-ATLANTIC REGION...

A VERY DYNAMIC WARM FRONT WITH ABUNDANT MOISTURE AND STRONG
SOUTHEASTERLY WINDS MOVED NORTH THROUGH THE REGION OVERNIGHT.
RAINFALL AMOUNTS OF ONE TO TWO INCHES WERE COMMON ACROSS MUCH OF
VIRGINIA, MARYLAND, DELAWARE AND SOUTHERN PENNSYLVANIA. MINOR TO
MODERATE WITHIN BANK RISES WERE OBSERVED ON MANY UPSTREAM RIVERS AND
CREEKS.

 AMT             LOCATION                  COUNTY        ST
NWSID
2.70    BIG MEADOWS F/P PRECIP        MADISON            VA   LURV2
2.65    BIG ISLAND                    BEDFORD            VA   BGIV2
2.63    WOODBRIDGE 5.9NW COCO         PRINCE WILLIAM     VA   VAPW10
2.50    SPERRYVILLE                   RAPPAHANNOCK       VA   SPYV2
2.47    CHARLOTTESVILLE 2W            ALBEMARLE          VA   CRVV2
2.41    WASHINGTON 3.2W COCO          RAPPAHANNOCK       VA   VARP04
2.38    EARLYSVILLE                   ALBEMARLE          VA   ERLV2
2.35    PARK HALL 0.2SW COCO          ST. MARYS          MD   MDSM08
2.27    HAYWOOD                       MADISON            VA   HWDV2
2.18    RIXEYVILLE 6.3 NNE COCORAHS   CULPEPER           VA   VACP01
2.12    CHARLOTTESVILLE CRN           ALBEMARLE          VA   CHAV2
2.10    GREAT DISMAL SWAMP 8S NWR     INDEPENDENT CITY   VA   GDSV2
2.09    POQUOSON 5.8W COCO            INDEPENDENT CITY   VA   VAPQC01
2.08    STEVENSVILLE                  QUEEN ANNE`S       MD   STVM2
2.08    GLASGOW 1 SE                  AMHERST            VA   GLAV2

THE LOCALLY HEAVY RAINFALL WILL MOVE OFF THE NEW JERSEY COAST BY
MIDDAY WITH OVER AN INCH OF RAINFALL EXPECTED.

SHOWERS AND THUNDERSTORMS WILL DEVELOP THIS AFTERNOON AND EVENING
WITH SOME STRONG TO POSSIBLY SEVERE. BRIEF HEAVY DOWNPOURS ARE
EXPECTED BUT MOVEMENT SHOULD BE FAST ENOUGHT TO PREVENT ANY
ADDITIONAL SIGNIFICANT RAINFALL.

TUESDAY WILL BE COOLER WITH SCATTERED SHOWERS IN THE UPPER
SUSQUEHANNA BASIN. PRECIPITATION AMOUNTS WILL BE LIGHT.

A COLD FRONT WILL CROSS THE REGION WEDNESDAY WITH SHOWERS. LESS THAN
ONE QUARTER INCH OF PRECIPITATION IS EXECTED.

ON AREA RIVERS AND CREEKS, MODERATE WITHIN BANK RISES WILL OCCUR AT
MANY UPSTREAM POINTS TODAY. RISES OF A FEW TO SEVERAL FEET WILL
CONTINUE DOWN THE MAIN STEM RIVERS INTO WEDNESDAY. SOME CAUTIONARY
STAGES WILL BE REACHED OR EXCEEDED. MINOR FLOODING IS POSSIBLE IN
THE RAPPAHANNOCK AND LOWER JAMES BASINS BUT IS NOT FORECASTED AT
THIS TIME.

ALL DAILY RIVER FORECASTS WILL BE AVAILABLE SHORTLY.

TJR
NNNN





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