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> Dec. 22 Northeast Cold Blast, Cold + Winds Obs & Forecasts
_AR_
post Dec 20 2008, 12:21 PM
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12Z GFS and NAM 2m temps at hour 48:





Winds:





With below zero wind chill? Probably blowing and drifting snow as well. Should be fun.

This post has been edited by _AR_: Dec 21 2008, 02:27 PM


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_AR_
post Dec 20 2008, 08:13 PM
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00Z NAM still showing single digits into eastern PA:



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_AR_
post Dec 20 2008, 08:42 PM
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NWS point-and-click:

QUOTE
Sunday Night: Mostly cloudy, with a low around 10. Wind chill values as low as -5. Breezy, with a west wind between 20 and 23 mph.

Monday: Partly sunny, with a high near 17. Wind chill values as low as -9. Breezy, with a west wind between 18 and 23 mph.

Monday Night: Partly cloudy, with a low around 8. West wind between 6 and 14 mph.


ohmy.gif


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_AR_
post Dec 21 2008, 08:01 AM
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NWS Gridded Values for 7am Monday. Temp, Winds, Apparent Temp (Wind Chill):



12/21-12Z NAM 2m Temps @ hr 24:



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_AR_
post Dec 21 2008, 10:44 AM
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12Z GFS hr 24:



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SnowMan11
post Dec 21 2008, 11:02 AM
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Looks to be in the teens tonight over here.


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_AR_
post Dec 21 2008, 11:56 AM
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Mt Holly is waiting to decide to issue wind and wind chill advisories this evening. They say that the winds are predicted to be just below advisory level, and the wind chill is predicted to be just above advisory level. So, if it is just slightly windier or colder than predicted, we will be in advisory criteria.

From this morning's AFD:

QUOTE
.SHORT TERM /MONDAY THROUGH MONDAY NIGHT/...
IT WILL BECOME VERY WINDY AND VERY COLD AS THE STRONG LOW MOVES UP
ALONG COASTAL NEW ENGLAND AND INTO EASTERN CANADA. AT THIS POINT,
WE ARE COMING UP WITH VALUES JUST BELOW WIND ADVISORY CRITERIA FOR
TONIGHT AND MONDAY. WE ARE ALSO COMING UP WITH WIND CHILL VALUES
THAT ARE JUST ABOVE CRITERIA.
AS A RESULT, WE WILL WAIT UNTIL THE
PRECIPITATION EVENT IS OVER TO TAKE ANOTHER LOOK AT THE POSSIBILITY
OF WIND AND/OR WIND CHILL ADVISORIES FOR OUR REGION.


This post has been edited by _AR_: Dec 21 2008, 12:02 PM


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_AR_
post Dec 21 2008, 02:22 PM
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Wind and Wind Chill Advisories in Effect.

QUOTE
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
207 PM EST SUN DEC 21 2008

PAZ054-055-221100-
/O.NEW.KPHI.WC.Y.0002.081222T0900Z-081222T1500Z/
CARBON-MONROE-
INCLUDING THE CITIES OF...JIM THORPE...STROUDSBURG
207 PM EST SUN DEC 21 2008

...WIND CHILL ADVISORY IN EFFECT FROM 4 AM TO 10 AM EST MONDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WIND
CHILL ADVISORY...WHICH IS IN EFFECT FROM 4 AM TO 10 AM EST
MONDAY.

THE COLDEST AIR MASS OF THE SEASON SO FAR WILL INVADE THE AREA
TONIGHT. THE COMBINATION OF LOW TEMPERATURES IN THE SINGLE NUMBERS
COUPLED WITH GUSTY WEST WINDS WILL PRODUCE WIND CHILL FACTORS OF
AROUND 15 DEGREES BELOW ZERO COME MONDAY MORNING. ONLY MODEST
RELIEF IS EXPECTED MONDAY AFTERNOON.


A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND STRONG WINDS
WILL COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN
FROST BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN.
IF YOU MUST VENTURE OUTDOORS...MAKE SURE YOU WEAR A HAT AND
GLOVES.

$$


STAUBER/GIGI


QUOTE
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
208 PM EST SUN DEC 21 2008

DEZ001>004-MDZ008-012-015-019-020-NJZ001-007>010-012>027-PAZ054-
055-060>062-067>071-221000-
/O.NEW.KPHI.WI.Y.0013.081221T2100Z-081222T1800Z/
NEW CASTLE-KENT-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-
QUEEN ANNES-TALBOT-CAROLINE-SUSSEX-WARREN-MORRIS-HUNTERDON-
SOMERSET-MIDDLESEX-WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-SALEM-
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-
ATLANTIC-CAPE MAY-ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-
COASTAL OCEAN-SOUTHEASTERN BURLINGTON-CARBON-MONROE-BERKS-LEHIGH-
NORTHAMPTON-CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...DOVER...GEORGETOWN...
REHOBOTH BEACH...ELKTON...CHESTERTOWN...CENTREVILLE...EASTO
...
DENTON...NEWTON...WASHINGTON...MORRISTOWN...FLEMIN
TON...
SOMERVILLE...NEW BRUNSWICK...FREEHOLD...SANDY HOOK...TRENTON...
PENNSVILLE...GLASSBORO...CAMDEN...CHERRY HILL...MOORESTOWN...
MOUNT HOLLY...JACKSON...MILLVILLE...HAMMONTON...
CAPE MAY COURT HOUSE...OCEAN CITY...ATLANTIC CITY...
LONG BEACH ISLAND...WHARTON STATE FOREST...JIM THORPE...
STROUDSBURG...READING...ALLENTOWN...BETHLEHEM...WE
T CHESTER...
NORRISTOWN...DOYLESTOWN...MEDIA...PHILADELPHIA
208 PM EST SUN DEC 21 2008

...WIND ADVISORY IN EFFECT UNTIL 1 PM EST MONDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 1 PM EST MONDAY.

THE DOUBLE BARREL LOW PRESSURE SYSTEMS AROUND THE AREA WILL MERGE
INTO ONE NEAR EASTERN MAINE OVERNIGHT AND CONTINUE TO INTENSIFY ON
ITS WAY THROUGH THE CANADIAN MARITIMES ON MONDAY.

WEST WINDS WILL CONTINUE TO INCREASE TONIGHT AND PROBABLY REACH
THEIR PEAK DURING THE FIRST HALF OF THE DAY ON MONDAY. SUSTAINED
WEST WINDS WILL INCREASE TO 20 TO 30 MPH WITH PEAK GUSTS REACHING
AROUND 45 MPH.


THESE WIND SPEEDS SHOULD KNOCK DOWN SOME WEAK TREES, TREE LIMBS
AND WIRES. THE TREES ARE GOING TO BE UNDER PRESSURE FROM SEPARATE
FORCES. FROM THE INTERSTATE 95 CORRIDOR AND NORTHWESTWARD THERE IS
STILL ICE ON SOME TREES. THIS WILL MAKE IT EASIER FOR THEM TO BE
SNAPPED. FARTHER TO THE SOUTHEAST, PRECIPITATION TOTALS SO FAR
THIS MONTH HAVE AVERAGED TWICE THE NORMAL DECEMBER AMOUNT ALREADY.
THE SUPERSATURATED SOIL WILL MAKE IT EASIER FOR SHALLOW ROOTED
TREES TO BE KNOCKED DOWN.


IN ADDITION TO THE WIND, THIS AIR MASS WILL BE THE COLDEST ONE OF
THE SEASON SO FAR. WIND CHILL FACTORS COME MONDAY MORNING WILL
AVERAGE AROUND ZERO WITH READINGS WELL BELOW ZERO OVER THE HIGHER
TERRAIN. PLEASE DRESS APPROPRIATELY IF YOU HAVE TO SPEND MUCH TIME
OUTDOORS.


BE PREPARED FOR THE LIKELIHOOD OF SCATTERED POWER OUTAGES. ALSO
IF POSSIBLE DO NOT PARK VEHICLES UNDER TREES THAT ARE ENCASED IN
ICE OR ARE SHALLOW ROOTED SUCH AS WILLOWS. A WIND ADVISORY MEANS
THAT WIND GUSTS OF AROUND 45 MPH ARE EXPECTED. WINDS THIS STRONG
CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES
ESPECIALLY ON NORTH TO SOUTH OVERPASSES. USE EXTRA CAUTION. WINDS
WILL DIMINISH MONDAY AFTERNOON AS THE INTENSE LOW PRESSURE SYSTEM
SLOWLY MOVES FARTHER AWAY.

$$

STAUBER/GIGI


I maxed out at 32F today with the "warm surge". Dropping now. The sun was shining all day and barely melt the snow. The snow pack will aid radiational cooling tonight with the clear skies. Winds have already started to pick up.

This post has been edited by _AR_: Dec 21 2008, 02:29 PM


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weatherocks
post Dec 21 2008, 02:29 PM
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Heres my forecast


QUOTE
Tonight: A chance of rain and snow before 11pm, then a slight chance of snow between 11pm and 1am. Mostly cloudy, with a low around 14. Wind chill values as low as -1. Windy, with a west wind between 21 and 28 mph, with gusts as high as 47 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

Monday: Mostly sunny, with a high near 25. Wind chill values as low as -2. Windy, with a west wind between 17 and 26 mph, with gusts as high as 45 mph.


Source
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loafer1989
post Dec 21 2008, 06:17 PM
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Now that the snow has ended here, the temperature is starting to fall and it's currently 20.8F. We have a forecasted low on monday night of 6F which will probably be aided with a 12" snowpack.


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2013 / 2014 Season snowfall total: 69.5 "















Total 2012/2013 Snowfall: 102.7"
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_AR_
post Dec 21 2008, 07:21 PM
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A couple of schools put up 2hr delays already due to the low temps.

Here it comes!




This post has been edited by _AR_: Dec 21 2008, 07:31 PM


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WeatherMatrix
post Dec 21 2008, 07:48 PM
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Well, I'm freezing here at 16 degrees with the wind occasionally popping up to 40 mph!


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_AR_
post Dec 21 2008, 07:55 PM
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QUOTE(WeatherMatrix @ Dec 21 2008, 08:48 PM) *
Well, I'm freezing here at 16 degrees with the wind occasionally popping up to 40 mph!


Yeah. I'm still in the lower 20's here. Winds are picking up though.


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WBwxwatcher92
post Dec 21 2008, 08:17 PM
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At 0900pm it was 25.6, it's now 24.5 at 0918pm...


--------------------
Winter storm grades:
12/26-27: F; shafted big-time
1/11: C+; kind of shafted, but decent snowfall
1/26: F; wrong side of a major cutoff again

Winter grade so far: D
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WBwxwatcher92
post Dec 21 2008, 08:26 PM
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It's now 24 degrees exactly....


--------------------
Winter storm grades:
12/26-27: F; shafted big-time
1/11: C+; kind of shafted, but decent snowfall
1/26: F; wrong side of a major cutoff again

Winter grade so far: D
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Phased Vort
post Dec 21 2008, 11:03 PM
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White Plains, Westchester County Airport
Lat: 41.08 Lon: -73.72 Elev: 400
Last Update on Dec 21, 11:56 pm EST

A Few Clouds and Breezy

25F
(-4C)
Humidity: 35 %
Wind Speed: W 25 G 33 MPH
Barometer: 29.56" (1001.7 mb)
Dewpoint: 1F (-17C)
Wind Chill: 9F (-13C)
Visibility: 10.00 mi


It's bitterly cold outside right know. Those winds are making for horrible conditions concerning the wind chill values; 9F already. The will surely go bellow 0F as the temperatures fall from 25F now to the 10's.


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WBwxwatcher92
post Dec 21 2008, 11:05 PM
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17 degrees with WCF around 5...


--------------------
Winter storm grades:
12/26-27: F; shafted big-time
1/11: C+; kind of shafted, but decent snowfall
1/26: F; wrong side of a major cutoff again

Winter grade so far: D
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Removed_Member_AtownWxWatcher_*
post Dec 22 2008, 12:09 AM
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Allentown Lehigh Valley International Airport
Lat: 40.66 Lon: -75.43 Elev: 390
Last Update on Dec 22, 12:51 am EST

Fair

17F
(-8C)
Humidity: 43 %
Wind Speed: W 16 G 37 MPH
Barometer: 29.74" (1007.8 mb)
Dewpoint: -2F (-19C)
Wind Chill: 2F (-17C)
Visibility: 10.00 mi.
More Local Wx: 3 Day History:

The above as of 1 AM
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Phased Vort
post Dec 22 2008, 12:18 AM
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White Plains, Westchester County Airport
Lat: 41.08 Lon: -73.72 Elev: 400
Last Update on Dec 22, 12:56 am EST

A Few Clouds

22F
(-6C)
Humidity: 36 %
Wind Speed: W 16 G 32 MPH
Barometer: 29.57" (1002.4 mb)
Dewpoint: -1F (-18C)
Wind Chill: [b]8F (-13C)[/b]
Visibility: 10.00 mi.

Getting worse. Will check the 2-day history to see how low the temperature and windchill went when i sign in later on today.


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Removed_Member_AtownWxWatcher_*
post Dec 22 2008, 02:33 AM
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3 AM

Allentown Lehigh Valley International Airport
Lat: 40.66 Lon: -75.43 Elev: 390
Last Update on Dec 22, 2:51 am EST

Fair and Breezy

13F
(-11C)
Humidity: 46 %
Wind Speed: W 25 G 37 MPH
Barometer: 29.82" (1010.5 mb)
Dewpoint: -4F (-20C)
Wind Chill: -7F (-22C)
Visibility: 10.00 mi.
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