|
Mesoscale Discussion 1902 |
< Previous MD Next MD >
|
|
MESOSCALE DISCUSSION 1902
NWS STORM PREDICTION CENTER NORMAN OK
1105 AM CST SUN NOV 02 2014
AREAS AFFECTED...SOUTHERN AND EASTERN MAINE
CONCERNING...HEAVY SNOW
VALID 021705Z - 022000Z
SUMMARY...MODERATE TO HEAVY SNOW WITH RATES LOCALLY AROUND 1 INCH
PER HOUR REMAIN LIKELY FROM SRN THROUGH EASTERN MAINE THROUGH
MID-AFTERNOON FOLLOWED BY A GRADUAL DECREASE IN OVERALL INTENSITIES
FROM SW TO NE BY EARLY EVENING.
DISCUSSION...BANDS OF MODERATE TO HEAVY SNOW EXTEND FROM SRN THROUGH
ERN MAINE WITHIN A NNE-SSW ORIENTED DEFORMATION AXIS. FRONTOGENETIC
FORCING AND DEEP-LAYER ASCENT WILL REMAIN MAXIMIZED NEXT FEW HOURS
AS NWD ADVANCING UPPER JET CIRCULATION INTERACTS WITH THE LOW-LEVEL
BAROCLINIC ZONE. FORECAST SOUNDINGS INDICATE PRESENCE OF DEEP
ISOTHERMAL LAYERS AROUND -5C BETWEEN 900 AND 700 MB WHICH SHOULD
ENHANCE SNOWFLAKE GROWTH EFFICIENCY THROUGH AGGREGATION. WITH NEAR
SFC TEMPERATURES AT OR SLIGHTLY ABOVE 32F...MUCH OF THE SNOW WILL
PROBABLY REMAIN WET IN CHARACTER. NEVERTHELESS...SNOWFALL RATES ARE
EXPECTED TO OCCASIONALLY APPROACH OR LOCALLY EXCEED 1 INCH PER HOUR
AS ZONE OF STRONG FORCING FOR ASCENT DEVELOPS NEWD THROUGH THIS
REGION NEXT FEW HOURS.
..DIAL.. 11/02/2014
ATTN...WFO...CAR...GYX...
LAT...LON 44266942 44257010 45396966 46126831 45956767 45426745
44906759 44576862 44266942
|
Top/All Mesoscale Discussions/Forecast Products/Home
|
|