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The Hudson Valley Thread


IrishRob17

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This is from yesterdays ALB AFD

...WITH THE GULF STREAM AND THERMAL

GRADIENT BAROCLINICITY LIGHTING THE FUSE. THE NORTHERN STREAM

UPPER ENERGY AND DYNAMICS COULD SUPPORT SOME ENSUING CONVECTIVE

FIREWORKS AND THE SNOW BOMBS BURSTING IN AIR AS THE STORM DEVELOPS

OFF THE CAROLINAS AND MID ATLANTIC COAST. O.K. THAT MIGHT HAVE

BEEN TOO POETIC...

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MESOSCALE DISCUSSION 0019

NWS STORM PREDICTION CENTER NORMAN OK

0700 PM CST TUE JAN 11 2011

AREAS AFFECTED...ERN PA...NJ...SERN NY AND SRN CT

CONCERNING...HEAVY SNOW

VALID 120100Z - 120600Z

SNOWFALL RATES WILL GRADUALLY INCREASE THROUGH EVENING INTO THE

EARLY MORNING FROM ERN PA AND NJ THROUGH SERN NY AND SRN CT. RATES

LOCALLY GREATER THAN 1 INCH PER HOUR WILL BECOME POSSIBLE AFTER 03Z.

THIS EVENING A STRONG 150+ KT UPPER JET WAS MOVING EWD THROUGH BASE

OF TROUGH LOCATED OVER THE OH VALLEY. AGEOSTROPHIC FORCING WITHIN

EXIT REGION OF THIS FEATURE WILL OVERTAKE BAROCLINIC ZONE OFF THE

MID ATLANTIC SEABOARD...RESULTING IN DEEPENING OF SURFACE LOW OFF

THE VA COAST AS IT LIFTS NWD OVERNIGHT. THE DEEPENING SURFACE LOW

WILL BE ACCOMPANIED BY AN INCREASE IN FRONTOGENETIC FORCING AND A

STRENGTHENING LLJ WHICH WILL AUGMENT ISENTROPIC LIFT FROM THE MID

ATLANTIC SEABOARD NWD INTO SRN NEW ENGLAND TONIGHT. TRENDS ALREADY

INDICATE SNOW EXPANDING IN COVERAGE FROM ERN PA INTO NJ. THE SNOW

WILL LIKELY BECOME ORGANIZED AS BANDS LATER THIS EVENING AND

TONIGHT. STEEPER MID-LEVEL LAPSE RATES WITHIN UPPER JET EXIT REGION

WILL RESULT IN CONVECTIVE ENHANCEMENT WITH SOME LIGHTNING ACTIVITY

ALSO POSSIBLE. A DEEP SUBFREEZING LAYER WHERE TEMPERATURES ARE

MOSTLY AOA -5C WILL EXIST BENEATH THE DEVELOPING UNSTABLE LAYER

WHICH COULD SERVE TO FURTHER AUGMENT SNOWFLAKE GROWTH THROUGH

AGGREGATION. RATES WILL LIKELY LOCALLY EXCEED 1 INCH PER HOUR AT

TIMES...ESPECIALLY WITHIN CONVECTIVE ELEMENTS.

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MESOSCALE DISCUSSION 0019

NWS STORM PREDICTION CENTER NORMAN OK

0700 PM CST TUE JAN 11 2011

AREAS AFFECTED...ERN PA...NJ...SERN NY AND SRN CT

CONCERNING...HEAVY SNOW

VALID 120100Z - 120600Z

SNOWFALL RATES WILL GRADUALLY INCREASE THROUGH EVENING INTO THE

EARLY MORNING FROM ERN PA AND NJ THROUGH SERN NY AND SRN CT. RATES

LOCALLY GREATER THAN 1 INCH PER HOUR WILL BECOME POSSIBLE AFTER 03Z.

THIS EVENING A STRONG 150+ KT UPPER JET WAS MOVING EWD THROUGH BASE

OF TROUGH LOCATED OVER THE OH VALLEY. AGEOSTROPHIC FORCING WITHIN

EXIT REGION OF THIS FEATURE WILL OVERTAKE BAROCLINIC ZONE OFF THE

Thanks for posting, here is the map for it.

post-463-0-82321600-1294796345.gif

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All of this talk about the low forming closer to the coast is very interesting, as are the reports of sleet and rain. It will be interesting to see if this continues.

Yes I was just going to post that I see reports of rain and sleet from the jersey shore. Very interesting for sure Rob.

22.1F here and falling

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Def. good signs if we want this sucka comin west :)

Raining up and down the Jersey coast.

Sure is. Just came back in with the dogs. I seen a flash and a report. It was either lightning or a transformer popped off towards Campbell Hall. I'm thinking it was a transformer, the sound was high pitched.

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