|
Mesoscale Discussion 325 |
< Previous MD Next MD >
|
|
MESOSCALE DISCUSSION 0325
NWS STORM PREDICTION CENTER NORMAN OK
1046 AM CDT FRI APR 01 2011
AREAS AFFECTED...ME
CONCERNING...HEAVY SNOW
VALID 011546Z - 011945Z
HEAVY SNOW IS INTENSIFYING ACROSS DOWNEAST ME LATE THIS MORNING.
SNOW RATES WILL LIKELY APPROACH 2 INCH PER HOUR IN MANY PLACES.
A RAPIDLY DEEPENING CYCLONE OFF THE SRN NEW ENGLAND COAST WILL LIFT
NWD TOWARD THE BORDER OF ME/NEW BRUNSWICK LATE THIS
AFTERNOON/EVENING. THIS FEATURE APPEARS TO BE HANDLED WELL IN
LATEST MODEL GUIDANCE AND AN EXPANDING/INTENSIFYING SWATH OF HEAVY
SNOW WILL OVERSPREAD MUCH OF ME...ESPECIALLY DOWNEAST ME AHEAD OF
CYCLONE. LATEST FORECAST SOUNDINGS OFF THE 14Z RUC SUGGEST HEAVIER
CONVECTIVE BANDS ARE LIKELY WITH MUCAPE ON THE ORDER OF 100-300 J/KG
EXPECTED TO OVERSPREAD THE SERN HALF OF THE STATE...MORE THAN
ADEQUATE TO WARRANT AT LEAST A THREAT FOR THUNDER SNOW.
REGARDLESS...VERY HEAVY SNOW RATES EXCEEDING 2-3 INCH/HR WILL
ACCOMPANY THE STRONGER CONVECTIVE BANDS/CORES WITH AN OTHERWISE
BROADER 1 INCH/PER HOUR-TYPE EVENT EXPECTED TO OVERSPREAD THE BORDER
WITH QUEBEC.
..DARROW.. 04/01/2011
ATTN...WFO...CAR...GYX...
LAT...LON 44777157 47436908 45826679 44716873 43987039 44777157
|
Top/All Mesoscale Discussions/Forecast Products/Home
|
|