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View Full Version : OK, I haven't even skied this snow yet, but looking ahead...



castlerock
04-05-2007, 04:09 PM
WEDS INTO THURS...FCST ONCE AGAIN BECMGS VERY INTERESTING WITH
EVOLUTION OF FULL LATITUDE TROF...GOOD PHASING OF SOUTHERN/NORTHERN
STREAM ENERGY...AND DEVELOPMENT OF SFC LOW PRES ALONG THE MID
ATLANTIC COASTLINE. GFS HAS CONSISTENTLY SHOWN DEEP DEVELOPMENT OF
CUTOFF OFF MID/UPPER LVL CIRCULATION ACRS THE MID ATLANTIC STATES
LATE WEDS AND MOVING INTO SNE BY 12Z THURS. THIS DEEP CIRCULATION
BECMGS NEGATIVELY TILTED ON THURS AS SFC LOW PRES DEEPENS OVER CAPE
COD. 00Z ENSEMBLES SHOWS 2 TO 3 STD BELOW NORMAL SFC LOW PRES NEAR
CAPE COD BY 12Z THURS...ALONG WITH 1 TO 2 STD BELOW NORMAL 5H HGHTS
ACRS THE NE CONUS...WHICH INDICATES THE POTENTIAL FOR A
SIGNIFICANT SYSTEM IMPACTING OUR CWA. IN ADDITION...00Z GFS
ENSEMBLES CONTS TO SUPPORT THIS THINKING OF DEVELOPMENT OF DEEP TROF
AND KEEPING SFC LOW PRES ALONG THE COAST. MEANWHILE...ECMWF/CANADIAN
MAINTAINS A NORTHERN CLOSED CIRCULATION WITH SFC LOW PRES TRACKING
NORTH INTO THE CENTRAL GREAT LAKES. THIS SOLUTION WOULD PLACE OUR FA
IN THE WARM SECTOR WITH PRECIP OCCURRING ALONG THE OCCLUDED FRNT.
BASED ON SEVERAL RUNS OF GOOD CONTINUITY AND GOOD AGREEMENT AMONG
THE ENSEMBLES DATA WL TREND TOWARD THE DEEPER AND COOLER GFS
SOLUTION ATTM. THIS WOULD SUPPORT THE POTENTIAL FOR ANOTHER
SIGNIFICANT PRECIP EVENT LATE WEDS INTO THURS. SOUNDINGS AND THERMAL
PROFILES WOULD SUPPORT THE POTENTIAL FOR ANOTHER HEAVY WET SNOW
EVENT...ESPECIALLY ACRS THE HIGHER TRRN.


And from Josh Fox:
http://madriverglenweather.blogspot.com/

If we can convince the powers that be at MRG to stay open later than Easter Sunday, there could another big easter egg discovery courtesy of mother nature. It is a bit early and medium range computer models are not exactly aligned as of yet but the possibility of a mid to late week storm exists producing snowfall of the more synoptic (as opposed to the fluffy terrain) variety.

castlerock
04-06-2007, 04:35 PM
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.

ski_resort_observer
04-06-2007, 07:16 PM
Pretty amazing...for sure! Even the sugarmakers are loving this weather, the trees love nasty weather in the spring.

noski
04-06-2007, 08:28 PM
Tol' ya! 8)