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Central PA Winter 2022/2023


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National Weather Service State College PA
207 PM EST Tue Feb 21 2023

PAZ028-056-057-211945-
Perry PA-Juniata PA-Dauphin PA-
207 PM EST Tue Feb 21 2023

...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN DAUPHIN...
NORTHEASTERN JUNIATA AND NORTHEASTERN PERRY COUNTIES THROUGH 245 PM
EST...

At 207 PM EST, Doppler radar was tracking a strong thunderstorm 17
miles east of Lewistown, moving east at 55 mph.

HAZARD...Winds up to 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Millersburg, Newport, Elizabethville, Mcalisterville, Mexico, New
Buffalo, Liverpool, Mifflintown, Port Royal, Halifax, Thompsontown,
Millerstown, Berrysburg, Pillow, East Salem and Enders.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&
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9 minutes ago, Jns2183 said:

Anyone have a list of pre 1960 tropical systems that made a lasting impact in south central and central pa?

Sent from my SM-G970U using Tapatalk
 

Did you see this?  Title says Hurricane but the info is trop storms. 

https://en.wikipedia.org/wiki/List_of_Pennsylvania_hurricanes

 

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38 minutes ago, Jns2183 said:

Anyone have a list of pre 1960 tropical systems that made a lasting impact in south central and central pa?

Sent from my SM-G970U using Tapatalk
 

Hurricane Hazel in 1954 for sure, still the only Cat 4 to ever impact North Carolina. It was being pulled up by an approaching frontal boundary and was moving rapidly enough that it still had hurricane force wind gusts when it crossed into southern PA. DCA and PHL had gusts to near 100mph, BAL 84mph, Harrisburg 69mph. The mid 1950s were quite a time for major east coast hurricanes. 

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A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EST
FOR EASTERN SUSQUEHANNA...LACKAWANNA...WAYNE...NORTHEASTERN LUZERNE
AND EASTERN WYOMING COUNTIES..

 

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM TO 10 PM EST
WEDNESDAY...

* WHAT...Mixed precipitation expected. Total snow and sleet
  accumulations of one to two inches and ice accumulations of
  around one tenth of an inch. Snow and ice accumulations are most
  likely across elevations above 1400 feet.

 

Not your grandparents February up here. :blink:

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5 minutes ago, Voyager said:

So guess who's going north tomorrow? Yup. Me...

I'll probably get the Prescott store delivered, but Flagstaff is, as far as I'm concerned, no bueno. I'm not going up there in blizzard-like conditions, although Prescott isn't going to be a walk in the park, either.

You definitely outdid yourself taking winter with you this year haha. This is a 10 day average for D5-15 coming up. 

image.thumb.png.3ab71538e7719ed98e410c8a88a07abb.png

  • Haha 4
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8 minutes ago, Greensnow said:
A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EST
FOR EASTERN SUSQUEHANNA...LACKAWANNA...WAYNE...NORTHEASTERN LUZERNE
AND EASTERN WYOMING COUNTIES..

 

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM TO 10 PM EST
WEDNESDAY...

* WHAT...Mixed precipitation expected. Total snow and sleet
  accumulations of one to two inches and ice accumulations of
  around one tenth of an inch. Snow and ice accumulations are most
  likely across elevations above 1400 feet.

 

Not your grandparents February up here. :blink:

My grandparents walked to school uphill in a thunderstorm then walked home uphill in a snowstorm.

 

That WWA extends pretty far south.  Not far from the 'Burg. 

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It’s def been a weird couple days. This is occurring with all of PA having sub 540dm thickness. It’s plenty cold aloft but not at the surface/low levels being disconnected from a low level arctic air source currently. Add in the increasing solar input/daytime heating with today’s instability too to make the radar look a bit summery.

With regards to the overall column up to 500mb, It was same thing yesterday without the convection. Sus Valley cracked 60 being aided by dry air/downsloping but still technically having a “snow column” in terms of 1000-500mb thickness. 

12 minutes ago, Bubbler86 said:

That WWA extends pretty far south.  Not far from the 'Burg. 

Literally the first winter headlines I’ve had in nearly a month haha. Looking at the HRRR, <0ºC 850mb gets routed pretty quickly after precip arrival but the 925mb (3000ft) level seems to wet bulb down a bit and it is fairly solidly below freezing in most of the Sus Valley the first couple hours after the precip onset. Could indicate a period of pingers or rain mixed with pingers even in some parts of the non advised areas of the Sus Valley. Any ZR issues I feel will mainly be confined to parts of the central and north central where there will be somewhat colder surface temps hanging in.  Surface temps in the Sus Valley are generally mid-upper 30s when precip gets there. A snow supporting column will hang on for a bit after precip onset the further NE one goes in PA, especially above I-80. 

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