Hydrometeorological Discussion
Issued by NWS Middle Atlantic RFC

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AGUS71 KRHA 311521
HMDRHA

HYDROMETEOROLOGICAL DISCUSSION
MIDDLE ATLANTIC RIVER FORECAST CENTER
NATIONAL WEATHER SERVICE STATE COLLEGE PA
 1021 AM EST SAT JAN 31 2015

LIGHT AMOUNTS OF PRECIPITATION FELL DURING THE PAST 24 HOURS. LARGEST
REPORTS WERE MAINLY IN NEW YORK...PENNSYLVANIA...AND NEW JERSEY.

  Value  County                St  Location
   0.20  Sullivan              NY  Callicoon F/P Precip
   0.20  Pike                  PA  Greentown F/P
   0.20  Susquehanna           PA  Montrose F/P Precip
   0.20  Delaware              NY  Walton
   0.20  Broome                NY  Windsor
   0.17  Delaware              NY  Hobart 4.8ESE COCO
   0.16  Delaware              NY  Long Eddy 6.5NNE COC
   0.15  Greene                NY  East Jewitt
   0.12  Luzerne               PA  Wilkes-Barre AP
   0.12  Middlesex             NJ  Deans 2E
   0.12  Somerset              NJ  Far Hills DCP
   0.11  Cayuga                NY  Auburn COOP
   0.11  Somerset              PA  Laurel Mountain
   0.11  Schoharie             NY  North Blenheim
   0.11  Sullivan              NY  Hancock 10.5SE COCO

BETWEEN NOW AND SUN RISE TOMORROW WE SHOULD BE RELATIVELY FREE OF
PRECIPITATION...BUT THAT WILL CHANGE AS WE ARE WATCHING A WINTER STORM
DEVELOP IN THE WESTERN US. THIS STORM WILL GAIN STRENGTH AS IT MOVES
OUT OF THE ROCKIES AND INTO THE OHIO VALLEY BEFORE HEADING TO THE
MID-ATLANTIC.

PRECIPITATION IN THE FORM OF SNOW WILL BEGIN TO MOVE INTO OUR WESTERN
BASIN AFTER SUNRISE TOMORROW. AS THE DAY PROGRESSES THE STORM WILL
CONTINUE TO MOVE EASTWARD AND BRINGING WITH IT HEAVIER PRECIPITATION. AT
THIS POINT THE FORECAST TRACK OF THIS SYSTEM IS NOT CERTAIN. THE EXACT
TRACK OF THE STORM IS CRITICAL AS WARMER AIR ON THE SOUTH SIDE OF THE
STORM WILL CHANGE SNOW TO RAIN AND FREEZING RAIN.

IN GENERAL TERMS THE RAIN/SNOW LINE IS FORECAST TO HOVER AROUND THE
MARYLAND AND PENNSYLVANIA BORDER. IF THE STORM TRACKS FURTHER NORTH
SO WILL THIS RAIN TO SNOW LINE. LIKEWISE IF THE STORM TRACKS A BIT
FURTHER TO THE SOUTH...MORE OF OUR AREA WILL GET FROZEN PRECIPITATION.

ON THE RIVERS...THERE HAS BEEN LITTLE CHANGE IN STAGES RELATED TO THE
LIGHT PRECIPITATION THAT HAS RECENTLY FALLEN. FORECAST STAGES FOR
DAY 1 AND INTO DAY 2 ARE GENERALLY STEADY...ALTHOUGH SIGNIFICANT CHANGES
IN RIVER STAGES ARE POSSIBLE WHERE RIVER ICE IS PREVALENT.
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