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December 22 - 25 possible historic wintery/mix/rain event obs


Hurricane Agnes
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Just now, ChescoWx said:

Closing in on a 1" rain total so far. Temp has dropped almost 14 degrees with the initial cool front....HRRR has temps in the single digits by 6pm and still has some festivus snow 

image.thumb.png.13c87684a989dfccac80b6553c94dea1.png

FOX29: Pitt at 3F (although I'm seeing 9F)...w/1-3" expected. Think a white Christmas is imminent.

Like the back building going on here... 

 

bb.jpg

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48 minutes ago, CoolHandMike said:

I love how W 22 G 32 MPH is just "breezy"! 

I wanted to text my sis to tell her that it was "blizzarding" out there but I know there's a "technical" definition for what would be considered "a blizzard". :lol:

Still getting on and off rain and am up to 0.52" with more apparently incoming.  Temp is 44 with dp 44 and light rain.

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Winter Weather Advisory issued here

PAZ054-055-060>062-240315-
/O.NEW.KPHI.WW.Y.0020.221223T1409Z-221223T2300Z/
/O.CON.KPHI.WC.Y.0003.221223T2000Z-221224T1800Z/
Carbon-Monroe-Berks-Lehigh-Northampton-
Including the cities of Jim Thorpe, Stroudsburg, Reading,
Allentown, Bethlehem, and Easton
909 AM EST Fri Dec 23 2022

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM EST THIS
EVENING...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON
TO 1 PM EST SATURDAY...

* WHAT...For the Winter Weather Advisory, a strong cold front
  moving west to east across the area this morning will bring rain
  showers changing to a quick burst of snow with rapidly dropping
  temperatures. Snow accumulation will be limited to a half inch
  up to an inch and a half but it will fall in a brief period
  leading to a quick drop in visibility and icy conditions. West
  winds will also gust up to 55 mph. For the Wind Chill Advisory,
  very cold wind chills expected. Wind chills as low as 25 below
  zero.

* WHERE...Carbon, Monroe, Berks, Lehigh and Northampton.

* WHEN...For the Winter Weather Advisory, until 6 PM EST this
  evening. For the Wind Chill Advisory, from 3 PM this afternoon
  to 1 PM EST Saturday.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions could impact portions of the morning and evening
  commute. Gusty winds could bring down tree branches and result
  in power outages. The cold wind chills could cause frostbite on
  exposed skin in as little as 30 minutes.

* ADDITIONAL DETAILS...The snow will be brief but icy conditions
  may linger through at least this afternoon.
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12 minutes ago, KamuSnow said:

Let's see what this pencillonimous line does when it gets here, assuming that the northern edge extends a bit. Could be sleet or graupel based on reports from the MA. Currently 44F here.

Screenshot_20221223-091052_copy_1185x1162_copy_351x344.png.9fe3a0d934c3868bcbaa9cf8cd0e9f3a.png

I think we're alright for snow looking at points west. MA/S always seems to get screwed...I'll take a 1" w/wind and we're guaranteed a white Christmas w/the cold temps expected.

43F/Rain

snow2.jpg

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8 minutes ago, Newman said:

Winter Weather Advisory issued here

PAZ054-055-060>062-240315-
/O.NEW.KPHI.WW.Y.0020.221223T1409Z-221223T2300Z/
/O.CON.KPHI.WC.Y.0003.221223T2000Z-221224T1800Z/
Carbon-Monroe-Berks-Lehigh-Northampton-
Including the cities of Jim Thorpe, Stroudsburg, Reading,
Allentown, Bethlehem, and Easton
909 AM EST Fri Dec 23 2022

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM EST THIS
EVENING...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON
TO 1 PM EST SATURDAY...

* WHAT...For the Winter Weather Advisory, a strong cold front
  moving west to east across the area this morning will bring rain
  showers changing to a quick burst of snow with rapidly dropping
  temperatures. Snow accumulation will be limited to a half inch
  up to an inch and a half but it will fall in a brief period
  leading to a quick drop in visibility and icy conditions. West
  winds will also gust up to 55 mph. For the Wind Chill Advisory,
  very cold wind chills expected. Wind chills as low as 25 below
  zero.

* WHERE...Carbon, Monroe, Berks, Lehigh and Northampton.

* WHEN...For the Winter Weather Advisory, until 6 PM EST this
  evening. For the Wind Chill Advisory, from 3 PM this afternoon
  to 1 PM EST Saturday.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions could impact portions of the morning and evening
  commute. Gusty winds could bring down tree branches and result
  in power outages. The cold wind chills could cause frostbite on
  exposed skin in as little as 30 minutes.

* ADDITIONAL DETAILS...The snow will be brief but icy conditions
  may linger through at least this afternoon.

 

4 minutes ago, Birds~69 said:

I think we're alright for snow looking at points west. MA/S always seems to get screwed...I'll take a 1" w/wind and we're guaranteed a white Christmas /the cold temps expected.

43F/Rain

snow2.jpg

That WWA Newman posted for N/W, also got lofted all the way to about the first set of counties into NJ and down into parts of DE and MD.

Winter Weather Advisory

URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
909 AM EST Fri Dec 23 2022

DEZ001>003-MDZ012-015-019-020-NJZ009-010-012-015>019-021-PAZ070-
071-104-106-240315-
/O.NEW.KPHI.WW.Y.0020.221223T1409Z-221223T2300Z/
/O.CON.KPHI.WC.Y.0003.221223T2300Z-221224T1500Z/
New Castle-Kent-Inland Sussex-Kent MD-Queen Annes-Talbot-Caroline-
Hunterdon-Somerset-Middlesex-Mercer-Salem-Gloucester-Camden-
Northwestern Burlington-Cumberland-Delaware-Philadelphia-
Eastern Montgomery-Lower Bucks-
Including the cities of Wilmington, Dover, Georgetown,
Chestertown, Centreville, Easton, Denton, Flemington, Somerville,
New Brunswick, Trenton, Pennsville, Glassboro, Camden,
Cherry Hill, Moorestown, Mount Holly, Millville, Media,
Philadelphia, Norristown, Lansdale, Morrisville, and Doylestown
909 AM EST Fri Dec 23 2022

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM EST THIS
EVENING...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 10 AM EST SATURDAY...

* WHAT...For the Winter Weather Advisory, a strong cold front
  moving west to east across the area this morning will bring rain
  showers changing to a quick burst of snow with rapidly dropping
  temperatures. Snow accumulation will be limited to a light
  coating up to a half inch but it will fall in a brief period
  leading to a quick drop in visibility and icy conditions. Winds
  gusting as high as 50 mph along and behind the cold front. For
  the Wind Chill Advisory, very cold wind chills expected. Wind
  chills as low as 15 below zero.

* WHERE...Portions of central, northern and southern Delaware,
  northeast Maryland, central, northern, northwest and southern
  New Jersey and southeast Pennsylvania.

* WHEN...For the Winter Weather Advisory, until 6 PM EST this
  evening. For the Wind Chill Advisory, from 6 PM this evening
  to 10 AM EST Saturday.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions could impact the evening commute. Gusty winds could
  bring down tree branches and result in power outages. The cold
  wind chills could result in hypothermia if precautions are not
  taken.

* ADDITIONAL DETAILS...The snow will be brief but icy conditions
  may linger through at least this afternoon.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

 

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48 minutes ago, Birds~69 said:

I think we're alright for snow looking at points west. MA/S always seems to get screwed...I'll take a 1" w/wind and we're guaranteed a white Christmas w/the cold temps expected.

43F/Rain

snow2.jpg

That thin line was cool, started as a heavy shower, then over to heavy sleet, and then back to light rain in about 5 minutes. Did get a coating of sleet in shaded areas. Temp now 40F.

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1 minute ago, LVblizzard said:

Some backbuilding going on in eastern MD and SE PA. Wouldn’t be surprised to squeeze out an inch or two in the Lehigh Valley. Still raining here but that R/S line looks like it’s racing east.

You can see the wave riding up north on radar well, I too think I can get a half inch to inch here

https://weather.cod.edu/satrad/?parms=subregional-Mid_Atlantic-comp_radar-24-1-100-1&checked=map&colorbar=undefined

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