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Central PA Winter 2024/2025


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10 minutes ago, GrandmasterB said:

Colder run of the GFS for Thursday. Temps in the upper 20’s with sleet/freezing rain. Interesting to see if that holds or not. 28 vs. 31 makes a pretty big difference as precip is falling. 

Thanks and sorry for folks that don't want an ice storm but I would love it. We haven't had one for years. 

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5 minutes ago, paweather said:

Thanks and sorry for folks that don't want an ice storm but I would love it. We haven't had one for years. 

I normally would agree with you.

Until my drive to work this morning. I'm good for ice for a while. 

In MU's 11/1 Winter Outlook he did outline a heightened risk of a significant ice storm this winter...

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3 hours ago, Mount Joy Snowman said:

Low of 26 here with .1" of snow/sleet.  Looks like a couple of ice storms to contend with on Thu/Sat.  The best part of ice storms is getting to view all the wildly overdone pink model maps.  What really has my attention is the middle of next week, quite intriguing.  Fun tracking times ahead!

based on setup, its not a strong cad signal, but it is there, so icy lovers may get some fun.  CAD is often undermodelled, so we'll see.  

Yeah some of the snow maps for next week look crazy.  If a third of that verified, I'd be happy....really happy.

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1 minute ago, Itstrainingtime said:

I normally would agree with you.

Until my drive to work this morning. I'm good for ice for a while. 

In MU's 11/1 Winter Outlook he did outline a heightened risk of a significant ice storm this winter...

Understood and sorry. I work from home so I can definitely see your point. Sorry about your co-worker.

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18 minutes ago, pasnownut said:

based on setup, its not a strong cad signal, but it is there, so icy lovers may get some fun.  CAD is often undermodelled, so we'll see.  

Yeah some of the snow maps for next week look crazy.  If a third of that verified, I'd be happy....really happy.

So true about the CAD routinely being under-modeled.  I almost always assume it will hold stronger than depicted.  More often than not, it's just so hard to fully scour away that boundary layer.  GFS just came through with another nice hit for next Tuesday, albeit scaled back from prior runs. 

Edit:  And then it follows up with a more complex storm on Wednesday.  Just complete tracking madness ha. 

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17 minutes ago, Mount Joy Snowman said:

So true about the CAD routinely being under-modeled.  I almost always assume it will hold stronger than depicted.  More often than not, it's just so hard to fully scour away that boundary layer.  GFS just came through with another nice hit for next Tuesday, albeit scaled back from prior runs. 

Edit:  And then it follows up with a more complex storm on Wednesday.  Just complete tracking madness ha. 

As I'm sure you know, it really is dependent on antecedent cold coupled w/ strength of SLP, and ability for WAA. 

This one is coming from our WSW, an not up from the south.  I pay attention to that because while were not really cold, the warm nose based on winds and weak SLP, may have a little tougher time scouring valleys as you get further east.  Were it a strong southerly wind component, I'd think we'd lose 800/925's a bit quicker.  That's just where my head is anyways, and why me thinks cold might be a bit tougher to scour.  Gonna be really close tho.  

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7 minutes ago, pasnownut said:

As I'm sure you know, it really is dependent on antecedent cold coupled w/ strength of SLP, and ability for WAA. 

This one is coming from our WSW, an not up from the south.  I pay attention to that because while were not really cold, the warm nose based on winds and weak SLP, may have a little tougher time scouring valleys as you get further east.  Were it a strong southerly wind component, I'd think we'd lose 800/925's a bit quicker.  That's just where my head is anyways, and why me thinks cold might be a bit tougher to scour.  Gonna be really close tho.  

Good point!

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The latest GFS runs has 4 winter events with all but this weekend's event having snow accumulation as part of the mix. This weekend on the model looks like mainly freezing rain changing to rain. Below are the 3 individual model snow events with 2 day totals over the next couple weeks. NOT A FORECAST! The first snow event is this Thursday. #2 is next Wednesday/Thursday and #3 is the weekend of the 14th-15th.

image.thumb.png.a233b4ba9271a24edb4adb803af1b4ba.pngimage.thumb.png.ce040424b72838eba0d8a749bfb8439e.pngimage.thumb.png.8b83a0e6df5642da3401891de8327821.png

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Watches up in western CTP

Quote
URGENT - WINTER WEATHER MESSAGE
National Weather Service State College PA
212 PM EST Mon Feb 3 2025

PAZ017-024-025-033-034-041500-
/O.NEW.KCTP.WS.A.0005.250205T1800Z-250206T1700Z/
Clearfield-Cambria-Blair-Somerset-Bedford-
Including the cities of DuBois, Altoona, Johnstown, Bedford,
Somerset, and Clearfield
212 PM EST Mon Feb 3 2025

...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
THURSDAY MORNING...

* WHAT...A period of snow or mixed precipitation possible Wednesday
  afternoon and evening, then significant ice accumulation possible
  Wednesday night into Thursday morning. Total snow and sleet
  accumulation of 1 to 2 inches then between two and three tenths of
  an inch of freezing rain possible.

* WHERE...Bedford, Blair, Cambria, Clearfield, and Somerset Counties.

* WHEN...From Wednesday afternoon through Thursday morning.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions could impact the Wednesday evening and Thursday morning
  commutes.

 

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1 minute ago, Bubbler86 said:

High level guess, we will need about 4-5" in Feb before they adjust it "too much".  Average is a little under .75" per week and so need to double that each week to start making meaningful dents. 

AHHH. Thanks well at least there might be some dents into it. 

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45 minutes ago, paweather said:

AHHH. Thanks well at least there might be some dents into it. 

Just using the Euro as an example it shows  2" as the total QPF for you over the next 2 weeks.   Definitely a good start to Feb but not a drought buster.     We should receive about 1.5" during that time so just a little better than what is normal/what our min should be. 

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16 minutes ago, Bubbler86 said:

Just using the Euro as an example it shows  2" as the total QPF for you over the next 2 weeks.   Definitely a good start to Feb but not a drought buster.     We should receive about 1.5" during that time so just a little better than what is normal/what our min should be. 

Got it. OK hopefully things get better

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