OK, I skied all day today. It was blower pow, faceshot city. Every run in the woods.
I get back in, check my email, and Check the NWS web site.
Look what I found....
.LONG TERM /MONDAY NIGHT THROUGH FRIDAY/...
THE MAIN CONCERN FOR LONG TERM PACKAGE WL BE POTENTIAL FOR
SIGNIFICANT PRECIP EVENT LATE WEDS INTO THURS...WHICH ONCE AGAIN
COULD BE MORE WHITE THAN WET.
FIRST...MID/UPPER LVL TROF WL FINALLY LIFT INTO EASTERN CANADA BY
TUES...WHILE WEAK SHORT WAVE RIDGE BUILDS ACRS OHIO VALLEY AHEAD OF
NEXT SIGNIFICANT TROF DEEPENING ACRS THE NORTHERN PLAINS.
OVERALL...MODELS IN REASONABLY GOOD AGREEMENT WITH DEPARTING TROF
AND BUILDING RIDGE...WITH ECMWF MOST AGGRESSIVE WITH RIDGE AND
QUICKEST WITH WEAKENING TROF ACRS OUR CWA ON TUES. IN
ADDITION...ECMWF AND CANADIAN STILL SHOW LIMITED DIGGING OF
MID/UPPER LVL TROF ON WEDS INTO THURS AND CONTINUE TO SUPPORT THE
SFC LOW PRES TRACKING ACRS THE CENTRAL GREAT LAKES WITH LIMITED
SECONDARY DEVELOPMENT ALONG THE MID ATLANTIC COAST. THIS WOULD
ADVECT PLENTY OF MOISTURE AND WARM AIR ACRS OUR CWA ON DAYS 5 AND
6...WHICH WOULD SUGGEST A SIGNIFICANT RAIN EVENT. MEANWHILE...THE
06Z AND 12Z GFS...ALONG WITH THE 00Z GFS ENSEMBLE DATA AND UKMET
SUPPORT A MUCH DEEPER CLOSED CIRCULATION/FULL LATITUDE TROF ACRS THE
OHIO VALLEY INTO THE NE CONUS ON WEDS INTO THURS. THESE SOLUTIONS
ALSO SUPPORT TRACKING THE INITIAL SFC LOW PRES ACRS THE OHIO
VALLEY...CLOSER TO THE MID/ULVL CIRCULATION WITH SECONDARY COASTAL
DEVELOPMENT NEAR NJ BY 12Z THURS AS VIGOROUS S/W ENERGY ROUNDS
TROF BASE. THIS NEGATIVELY TILTED 5H/7H CIRCULATION AND SFC
CYCLOGENESIS ALONG THE EASTERN SEABOARD WOULD ADVECT PLENTY OF
MOISTURE INTO OUR FA FOR THE POTENTIAL OF A SIGNIFICANT PRECIP
EVENT. THE LATEST 12Z GFS ENSEMBLES AND HPC GUIDANCE STILL SUPPORTS
A DEEP CUTOFF CIRCULATION WITH PRIMARY LOW TRACK FROM OHIO VALLEY TO
THE MID ATLANTIC COAST BY 12Z THURS. THIS PLACES THE CUTOFF 85H LOW
TO OUR SOUTH ALONG WITH VERY FAVORABLE TRACK OF THE 7H CIRCULATION
FOR BACKSIDE DEFORMATION/WRAP AROUND PRECIP. THE COLD AIR WOULD BE
SUPPLIED BY ANTICYCLONIC CIRCULATION OVER SOUTHERN CANADA.
THE STATE COLLEGE ENSEMBLES PAGE SHOWS ONCE AGAIN TODAY 2 TO 3 STD
BELOW NORMAL SFC PRES FIELDS ACRS CAPE COD ON 12Z THURS...ALONG WITH
1 TO 2 STD BELOW NORMAL NEGATIVELY TILTED 5H HGHT FIELD ACRS THE
MID ATLANTIC/NE CONUS. THIS SUPPORTS THE POTENTIAL FOR A SIGNIFICANT
SYSTEM...GIVEN THE RUN TO RUN CONTINUITY.
BASED ON CRNT DATA FEEL INITIAL PRIMARY LOW PRES WL TRACK INTO
CENTRAL GREAT LAKES WITH PRECIP FIRST STARTING AS RAIN ACRS OUR CWA
EARLY THURS MORNING. HOWEVER...AS SECONDARY COASTAL SYSTEM QUICKLY
DEVELOPS LATE WEDS INTO THURS...ENOUGH COLD AIR WL ADVECT INTO THE
SYSTEM TO PRODUCE A CHANGE OVER TO SNOW. IN ADDITION...HEAVY PRECIP
RATES COULD COOL COLUMN ENOUGH TO SUPPORT SNOW...WHICH IS SUPPORTED
BY 12Z GFS...SHOWING PROGGED 85H TEMPS DROPPING TO -8C AND 925MB
TEMPS NEAR -4C...WHEN THE HEAVIEST PRECIP IS OCCURRING ON THURS.
THIS WL BE A SIGNIFICANT PRECIP EVENT WITH THE POTENTIAL FOR ANOTHER
SIGNIFICANT LATE SEASON HEAVY WET SNOW EVENT...ESPECIALLY ACRS THE
HIR TRRN OF CENTRAL/NORTHERN VT. WL MENTION HIGH CHC POPS ON WEDS
NIGHT INTO THURS FOR RA/SN AND DECREASE HPC TEMPS BY 3 TO 5 DEGREES
ATTM. STILL PLENTY OF TIME FOR ADJUSTMENTS AND FINE TUNING THE FCST
WITH GREATER DETAILS.
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