Dec 22, 2009

Deep Trough & Snowfall Totals

An unusually strong and deep subtropical upper trough is moving across Central America today. On the 6Z 200 mb analysis chart (3rd one down) a 100 knot southwesterly wind flag is located over Honduras.
Over the weekend, a massive blizzard hit the East Coast with 19.3" at Dulles International and up to 30" in western Virginia, 23.2 at Philadelphia - the second highest on record with thunder, 14.2 at JFK Airport and 26.3 at the NWS office on Long Island. Here are more totals from HPC:

...SELECTED STORM TOTAL SNOWFALL IN INCHES FROM 100 AM EST FRI DEC
18 THROUGH 300 PM EST SUN DEC 20...

...MASSACHUSETTS...
BOURNE 21.5
KINGSTON 21.0
NEW BEDFORD 20.0
MIDDLEBORO 18.5
MENDON 17.0
ATTLEBORO 15.8
GLOUCESTER 14.5
FOXBOROUGH 14.0
WAYLAND 14.0
BOSTON LOGAN ARPT 9.0

...MAINE...
HAMPSTEAD 5.4
HAMPTON 5.0
KITTERY POINT 4.5

...RHODE ISLAND...
WEST GREENWICH 22.0
WARREN 21.0
NEWPORT 20.5
SOUTH KINSTOWN 19.9
PORTSMOUTH 19.5
CHARLESTOWN 19.2
WOONSOCKET 19.0
CRANSTON 17.0
WEST WARWICK 17.0
CUMBERLAND 15.9

...SELECTED PEAK WIND GUSTS IN MILES PER HOUR EARLIER IN THE
EVENT...

...MASSACHUSETTS...
PROVINCETOWN 65
NANTUCKET 63
BARNSTABLE 62
HYANNIS 54
FALMOUTH 52

...SELECTED STORM TOTAL SNOWFALL IN INCHES WHERE THE EVENT HAS
ENDED...

...CONNECTICUT...
CLINTON 20.0
EAST HADDAM 20.0
NORWICH 20.0
PUTNAM 20.0
GROTON 18.0
EAST KILLINGLY 15.7
MANSFIELD 15.5
EASTFORD 14.5
STERLING 14.5
NORTH BRANFORD 12.0

...WASHINGTON, DC...
AMERICAN UNIVERSITY 16.0
THE MALL 16.0

...DELAWARE...
DOVER 18.0
BEAR 17.0
WILMINGTON 17.0
NEWARK 16.1

...KENTUCKY...
HARLAN 7.0
BEATTYVILLE 6.0
WILLIAMSBURG 1NNW 6.0

...MARYLAND...
OLNEY 23.3
BETHESDA 23.0
COLUMBIA 23.0
DERWOOD 23.0
SIMPSONVILLE 1 SSE 22.9
GAITHERSBURG 1 NW 22.0
GERMANTOWN 22.0
MILLINGTON 22.0
ANNAPOLIS 20.8
FREDERICK 19.0

...NORTH CAROLINA ...
ROBBINSVILLE 12 W 24.0
ASHEVILLE 17.0
BOONE 16.0
EAST MARION 15.0
RUTHERWOOD 15.0
FLEETWOOD 14.0
WAYNESVILLE 13.8
WEST JEFFERSON 13.0
MARSHALL 7 N 12.0
GREENSBORO 4.5

...NEW JERSEY...
FOLSOM 25.7
SWEDESBORO 25.0
TABERNACLE 24.8
ATCO 24.0
MEDFORD 24.0
PITTSGROVE 23.5
BRICKTOWN 22.0
CHERRY HILL 19.5
MOUNT HOLLY NWS 16.6
ATLANTIC CITY 12.1

...NEW YORK...
UPTON 26.3
MOUNT SINAI 24.0
ISLIP 23.9
SAG HARBOR 20.0
MEDFORD 18.0
PLAINVIEW 15.2
NYC/JFK ARPT 14.5
LONG BEACH 12.5
BROOKLYN 11.8
NYC/CENTRAL PARK 10.9

...OHIO...
BRIDGEPORT 5.0

...PENNSYLVANIA...
PHILADELPHIA INTL ARPT 23.2
SHARON HILL 23.0
SOUTH MOUNTAIN 22.0
BROGUE 20.0
QUARRYVILLE 20.0
RAINSBURG 19.5
WEST CALN 19.3
ORRTANNA 17.2
ROCKLEDGE 16.5
WEST CHESTER 15.4

...VIRGINIA...
INDIAN VALLEY 26.0
MUSTOE 25.4
FISHERVILLE 25.0
ROCKY BAR 3 ENE 24.0
CROZET 1SSE 23.0
COVINGTON 22.6
CENTREVILLE 1 SE 22.0
ALEXANDRIA 19.0
DULLES INTERNATIONAL 16.0
REAGAN NATIONAL ARPT 15.4

...WEST VIRGINIA...
MARLINTON 26.0
FRIARS HILL 25.0
HORSE SHOE RUN 25.0
BECKLEY 24.0
HENDRICKS 24.0
JUMPING BRANCH 24.0
CANAAN VALLEY STATE 3SW 22.0
WILLIAMSBURG 22.0
GRANDVIEW 21.0
CHARLES TOWN 18.0

...SELECTED STORM TOTAL RAINFALL IN INCHES WHERE THE EVENT HAS
ENDED...

...SOUTH CAROLINA...
MCCLELLANVILLE 5.96
MOUNT PLEASANT 1 NE 5.38
ISLE OF PALMS 4.80
CHARLESTON 3.93
FORT JOHNSON 3.51
NORTH MYRTLE BEACH 2.96
GOOSE CREEK 4 SE 2.90
HUGER 3 NNE 2.80
BEAUFORT 2.55
WITHERBEE 2.44

The next big winter storm is on the way and heavy snow is already falling in western Colorado.

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