[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 231903
SWOMCD
SPC MCD 231902 
MEZ000-MAZ000-NHZ000-232230-

MESOSCALE DISCUSSION 0121
NWS STORM PREDICTION CENTER NORMAN OK
0102 PM CST SUN JAN 23 2005

AREAS AFFECTED...COASTAL ME/COASTAL NH/COASTAL MA

CONCERNING...BLIZZARD CONDITIONS 

VALID 231902Z - 232230Z

DECREASING SNOW RATES EXPECTED ACROSS COASTAL PORTIONS OF MA/NH
THROUGH 21Z...ALTHOUGH VERY STRONG NELY WINDS WILL CONTINUE TO
INDUCE SIGNIFICANT BLOWING AND DRIFTING SNOW. OCNLY HEAVY
SNOW/BLIZZARD CONDITIONS WILL PERSIST ACROSS COASTAL ME THROUGH THE
AFTERNOON...WITH SNOW RATES OF 1.0 IN/HR POSSIBLE ACROSS ERN COASTAL
ME THROUGH AT LEAST 22Z.

18Z ANALYSIS FEATURES INTENSE CYCLONE WITH 980 MB PRESSURE APPROX
100 MILES ESE OF ACK BASED ON BUOY 44008/SHIP REPORT FROM KHRK.
VOLUMETRIC RADAR DATA/SFC OBS DEPICT HEAVY BANDS OF SNOW ONGOING
ACROSS CAPE COD. CURRENT TRENDS/18Z RUC GUIDANCE SUGGEST HEAVIEST
SNOW EXPECTED TO CONTINUALLY DIMINISH THROUGH 21Z AS CYCLONE
PROGRESSES NEWD. HOWEVER VERY STRONG WINDS WILL CONTINUE TO COMPOUND
BLOWING/DRIFTING SNOW...ESPECIALLY IN COASTAL AREAS OF MA/NH.
WSR-88D VADS AT GYX/BOX EACH PORTRAY 50 KT NELY WINDS AROUND 1 KM
LEVEL...WITH HISTORY OF OBSERVED 50+ KT GUSTS INTO EARLY AFTERNOON
INVOF CAPE COD.

ACROSS COASTAL ME...ALTHOUGH EXHIBITING A DIMINISHING TREND...SW-NE
ORIENTED MID LEVEL FRONTOGENESIS /600 MB-800 MB/ IN NRN PERIPHERY OF
CYCLONE WILL CONTRIBUTE TO ENHANCED BANDING INVOF IMMEDIATE COASTAL
ME...ESPECIALLY THE ERN COAST WHERE 1 IN/HR RATES ARE MOST LIKELY.
CONSISTENT WITH INCREASING TRENDS IN BUOYS OFFSHORE ERN ME...18Z
BASED RUC SUGGESTS NELY WINDS OF 50-60 KTS AT 850 MB DEVELOPING INTO
MUCH OF COASTAL ME THROUGH 21Z-00Z...COMPOUNDING ONGOING BLIZZARD
CONDITIONS.

..GUYER.. 01/23/2005

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

...NOTICE...
SPC WINTER WEATHER MESOSCALE DISCUSSIONS WILL BE ISSUED ON A 
SCHEDULED BASIS...FOUR TIMES A DAY...BETWEEN 00-01 UTC...
06-07 UTC...12-13 UTC...AND 18-19 UTC AS SIGNIFICANT SHORT
RANGE WINTER WEATHER EVENTS UNFOLD.  THIS SCHEDULE WILL BE
USED FROM DECEMBER 1 THROUGH FEBRUARY 28.

ATTN...WFO...CAR...GYX...BOX...

45126707 44736694 44356772 43986871 43696958 43027053
42517067 42077028 41956989 41686982 41416976 41147001
41377068 41817104 42807108 43557064 44246978 44746851 

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