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Pittsburgh/Western PA Winter 2024-2025 Thread


Rd9108
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2 hours ago, RitualOfTheTrout said:

I guess the good part is it looks like after next week is when the better pattern takes hold so if it doesn't work out there's still opportunities to be had. 18z GFS had two big storms actually hit us and a couple little ones pushing 30+ inches.

image.thumb.png.375ae62eaa43a351be612f23c5e4ce87.png.e866f4e7e77528eafc7bec05a6ee33ca.png

We do need to take these model depictions with a grain of salt. For context, the snowiest 16-day periods on record are shown below. The only times that much snow fell in 16 days were with massive snowstorms in December 1890, January 1978, March 1993, and February 2010. Not even November 1950 had that much snow in any 16-day period, officially.

image.png.7fcddadaf41056ebbfe46d72e9a01818.png

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5 minutes ago, TheClimateChanger said:

We do need to take these model depictions with a grain of salt. For context, the snowiest 16-day periods on record are shown below. The only times that much snow fell in 16 days were with massive snowstorms in December 1890, January 1978, March 1993, and February 2010. Not even November 1950 had that much snow in any 16-day period, officially.

image.png.7fcddadaf41056ebbfe46d72e9a01818.png

And actually this analysis overestimates the recurrence of what was depicted on the 18z GFS. A closer review of the model shows almost all of that falls in the final 8 days of the model run. There has never been that much snow observed in an 8-day period.

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2 hours ago, TheClimateChanger said:

And actually this analysis overestimates the recurrence of what was depicted on the 18z GFS. A closer review of the model shows almost all of that falls in the final 8 days of the model run. There has never been that much snow observed in an 8-day period.

It's usually a red flag when your snow exists only at the backend of OP model runs.  Not that it can't happen, but it's stuff you typically bet against.

Pattern does look more favorable long-term, however.  It's a Nina so the risk is we run dry without a strong STJ presence.  Next 10 days look messy, first.  Pretty reliant we get lucky on timing.

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2 hours ago, TheClimateChanger said:

We do need to take these model depictions with a grain of salt. For context, the snowiest 16-day periods on record are shown below. The only times that much snow fell in 16 days were with massive snowstorms in December 1890, January 1978, March 1993, and February 2010. Not even November 1950 had that much snow in any 16-day period, officially.

Oh I agree 100%. I was using it to show the week after next might actually be more favorable if the pattern evolves as depicted. Realistically I think even expecting half that much is a stretch.

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The MJO is going back into 8 it looks like so the chances of seeing snow again are definitely high. Obviously it's not guaranteed but any sign of warm weather is gonna have to be put on hold after this coming week. 

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1 hour ago, north pgh said:

Thunder today?

SPC has us outlined in a risk for general thunder today. A marginal risk of severe thunderstorms extends as far north as far southern Ohio, including locations such as Gallipolis, Ironton, and Portsmouth, along the Ohio River.

day1otlk_1630.gif

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4 hours ago, Rd9108 said:

The MJO is going back into 8 it looks like so the chances of seeing snow again are definitely high. Obviously it's not guaranteed but any sign of warm weather is gonna have to be put on hold after this coming week. 

Maybe, we just need to imagine it's 1993 again. I was doing some research some months back and came across an article in the Post Gazette for early March 1993.  And it noted how, after several winters with below to much below normal snowfall, that winter (through the end of February) was actually pretty close to a normal Pittsburgh winter, even though it seemed much worse coming off a spate of mild winters. Snowfall stood at 37.5" versus a seasonal average of 46" (being the seasonal snowfall normal quoted at the time). Of course, little did they know the surprises the rest of March would bring, which would catapult the winter of 1992-1993 to one of the snowiest on record.

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4 minutes ago, TheClimateChanger said:

Maybe, we just need to imagine it's 1993 again. I was doing some research some months back and came across an article in the Post Gazette for early March 1993.  And it noted how, after several winters with below to much below normal snowfall, that winter (through the end of February) was actually pretty close to a normal Pittsburgh winter, even though it seemed much worse coming off a spate of mild winters. Snowfall stood at 37.5" versus a seasonal average of 46" (being the seasonal snowfall normal quoted at the time). Of course, little did they know the surprises the rest of March would bring, which would catapult the winter of 1992-1993 to one of the snowiest on record.

Actually, looking back at the records, the seasonal snowfall that winter was only 19.3" through February 12 - that's even less than this winter.

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Special Weather Statement
National Weather Service Pittsburgh PA
322 PM EST Sat Feb 8 2025

OHZ039-040-048-049-082100-
Tuscarawas OH-Harrison OH-Coshocton OH-Carroll OH-
322 PM EST Sat Feb 8 2025

...A STRONG THUNDERSTORM WILL IMPACT NORTHERN HARRISON...NORTHEASTERN
COSHOCTON...SOUTHERN CARROLL AND CENTRAL TUSCARAWAS COUNTIES THROUGH
400 PM EST...

At 322 PM EST, Doppler radar was tracking a strong thunderstorm 7
miles southeast of Killbuck, or 8 miles south of Millersburg, moving
east at 75 mph.

HAZARD...Half inch hail.

SOURCE...Radar indicated.

IMPACT...Minor hail damage to vegetation is possible.

Locations impacted include...
New Philadelphia, Dover, Uhrichsville, Dennison, Sugarcreek,
Gnadenhutten, Tuscarawas, Baltic, Scio, Midvale, Jewett, Warsaw,
Amsterdam, Bowerston, Barnhill, Dellroy, Sherrodsville, Roswell,
Stone Creek, and Leesville.

This includes Interstate 77 in Ohio between mile markers 69 and 84.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4045 8199 4044 8167 4053 8166 4058 8086
      4056 8086 4056 8092 4047 8092 4047 8094
      4042 8094 4042 8086 4034 8087 4033 8201
TIME...MOT...LOC 2022Z 266DEG 65KT 4043 8187

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...<30 MPH

$$

Milcarek
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New special weather statement for parts of the Pittsburgh metro. My current temperature is 31.1F, so this is interesting. Lot of movement on that storm cell as well - 80 mph, wow!

Special Weather Statement
National Weather Service Pittsburgh PA
357 PM EST Sat Feb 8 2025

OHZ040-049-050-PAZ020-021-029-WVZ001-002-082145-
Jefferson OH-Harrison OH-Carroll OH-Beaver PA-Allegheny PA-
Washington PA-Brooke WV-Hancock WV-
357 PM EST Sat Feb 8 2025

...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN HARRISON...NORTHERN
JEFFERSON...SOUTHEASTERN CARROLL...SOUTHERN BEAVER...NORTHWESTERN
WASHINGTON...CENTRAL ALLEGHENY...BROOKE AND HANCOCK COUNTIES THROUGH
445 PM EST...

At 357 PM EST, Doppler radar was tracking a strong thunderstorm 10
miles southeast of Carrollton, moving east at 80 mph.

HAZARD...Pea size hail.

SOURCE...Radar indicated.

IMPACT...Minor hail damage to vegetation is possible.

Locations impacted include...
Pittsburgh, Penn Hills, Mount Lebanon, Ross Township, McCandless
Township, Moon Township, Weirton, Steubenville, Franklin Park, Shaler
Township, North Side Pittsburgh, Baldwin, Upper St. Clair, Hampton
Township, Scott Township, Wilkinsburg, Whitehall, Robinson Township,
Dormont, and O`hara Township.

This includes the following highways...
  Interstate 79 in Pennsylvania between mile markers 54 and 72.
  Parkway North between mile markers 1 and 13.
  Interstate 376 in Pennsylvania between mile markers 47 and 75.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4034 8111 4052 8112 4060 8000 4049 7982
      4036 8000
TIME...MOT...LOC 2057Z 266DEG 69KT 4044 8101

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...<30 MPH

$$

Milcarek
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17 minutes ago, Ahoff said:

Shame that a few days ago Tuesday was looking really nice.

Who knows, maybe we get a surprise and the 700mb frontgen band goes 200 miles further north and gets us Tuesday lol

I wouldn't write anything off yet, but we need some changes for the next two after. Not out of the question one or both ends less amped and further south. This season thats been the trend. If it happens and its enough to make a difference here remains to be seen.

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1 minute ago, RitualOfTheTrout said:

Getting some light snow / flurries this morning. Wasn't expecting that. 

12z 3k NAM bumped the precip shield a hair north for tomorrow. Not much, but maybe we could eek 1-2 out of it if it bleeds north up to game time. Im not expecting much of anything though. 

Everything is fringe city now. Miss to the north, slider tomorrow, and then the next one cuts. Just unfortunate string of luck. Pattern still looks like it has promise coming up. 

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12 minutes ago, Rd9108 said:

Everything is fringe city now. Miss to the north, slider tomorrow, and then the next one cuts. Just unfortunate string of luck. Pattern still looks like it has promise coming up. 

The NAM shows a couple inches tomorrow for the metro area (particularly south), is that possible?

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10 minutes ago, TheClimateChanger said:

The NAM shows a couple inches tomorrow for the metro area (particularly south), is that possible?

I mean anything is possible. We've seen nowcasting busts plenty of times. We've seen the fgen band materialize 200 miles north of the main storm. I don't rule anything out. 

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2 minutes ago, Rd9108 said:

I mean anything is possible. We've seen nowcasting busts plenty of times. We've seen the fgen band materialize 200 miles north of the main storm. I don't rule anything out. 

It would be nice to get back on the board again. After a fairly snowy start to January, there has only been 0.1" dating back to the 25th. And the last 30 days (1/12-2/10) have only measured a total of 6.3 inches. That's pretty crappy in what climatologically is the snowiest period in Pittsburgh.

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2 hours ago, TheClimateChanger said:

The NAM shows a couple inches tomorrow for the metro area (particularly south), is that possible?

I guess it depends how far South lol. Seems unlikely anything more than half inch or so for the city, but yeah further SE could get into the 1-2 inch range. Going to take a relatively large change given it's only 24 hours away for anyone NW of the city to see much I think. Either way whatever falls is just a "stats padder" as the next system Wednesday looks to be mostly rain right now. 

 

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Everything has been flowing either north or south of Pennsylvania this winter, for the most part.  Yet to have a flush hit across the state, and it looks like that trend continues.

Unfortunate luck.  Things cut to Chicago behind a wave of confluence or get stuck underneath one and are suppressed.

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16 minutes ago, jwilson said:

Everything has been flowing either north or south of Pennsylvania this winter, for the most part.  Yet to have a flush hit across the state, and it looks like that trend continues.

Unfortunate luck.  Things cut to Chicago behind a wave of confluence or get stuck underneath one and are suppressed.

My eyes are set on the weekend. Even if we would get snow tomorrow it's all gone after that cutter. So now I'm looking at the weekend storm. 

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