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Pittsburgh/Western PA Weather


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From JB:

What about my "super storm" threat on the east coast. The models really dont show it now, but the parameters have not changed. The key is the energy in the southwest coming out in time for the northern branch to dig into. However this is more tricky than some of the other storms I have held my ground on coming further west, for the pattern which has promoted corrections west is not as clear and here is why.

The trough that is coming later this upcoming week is PROGRESSING the mean long wave out of the east. The past two weeks, the mean trough has been backing up, and that is why storms have been coming further west. But this time the trough is not only progressing back into the east, but out of the east into the north atlantic, which is why the back of winter is broken next week with the major, and may I add, well touted warm up! A new trough is developing in the means in the west with a strong negative PNA for next week. The effects of that may break enough of the ridge down fast enough to force the energy needed to get out into the southern plains for the super storm type phasing to lean back... which would gum up the works. While I am not changing, and believe it will come out fast enough ( after all, its not like there havent been big storms moving up further west than the models) this is much trickier folks. But if its tricky for me, its tricky for the models, which have had a tendency of leaning energy back. Then again the current package did just that.. the storm a few days ago had the energy from the storm now stay way back, right? So its tricky , but I still like the major phasing idea Wednesday and Thursday with the monster traveling from New Orleans to Norfolk to Nantucket. After all if we look at the trend of storms, and the original snow axis and paths I have had, while further west than the models 4 days out, the snow has wound up further west than me. Even in Texas, the snow started further west with Houston to McAllen seeing only some light freezing rain ( a problem anyway there, but not the drama I had thought would occur. However once northwest of that, it fulfilled its destiny.

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It's funny you mentioned jb...I was listening to Quinn and rose and they talked about jb. They were talking about global warming and that mets like jb don't have political leanings in forecasts. Quinn went onto say jb is most always right.

First off, I pooped myself because jb does forecast with bias to hype everything. He also is always wrong. To cap it off, his winter forecast was warm in the east, and wrong.

It's reasons like that the people who listen to these guys are so uninformed...they spout garbage over and over and people fall for it.

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Wow...nam totally disintegrates our early week threat...I don't usually say this, but bring on spring...this winter has flat out sucked..I'm sick of an inch at a time as it's just a pain in the ass.

i agree.

Since we weren't getting snow today I decided to take a nice 3 mile run around the neighborhood. I got half way into my run and it started pouring rain.

I was soaked and it was 35 degrees.

:devilsmiley::axe: :axe: :deadhorse::facepalm:

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Happy Feb 5th everyone......last year at this moment it was RIPPIN'. I think we probably had about 10" on the ground on our way to >21":snowman:

I haven't given up on the mid/late week threat. But I am not going to look at it until Monday (so I say)

Let's have a great one tomorrow!!! Got my blood pressure med and beers ready!

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Nam total precip through 48 hours, maybe we can get another over performing event here? Some of this might be mixed, I have no idea, I haven't been following this storm...

nam_p48_048l.gif

I feel the same as you.

It looks like the majority falls tonight.

I think we will have a mix during the day but this evening and tonight we may be in for a 1-3 event and then another 1/2 inch or so tomorrow with colder air.

If the GFS comes in wetter tonight we may be looking at a nice surprise snowfall.

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Per text data, 12z NAM says about .25 of what falls will be snow. The rest is some sort of mix.

Looks like the mid week storm is dead. Then we get a bit of a warm-up. Looking at the GFS though, it doesn't look like a huge warm-up, or at least doesn't look to be way above average and cold air looks to be close by so I would not write winter off just yet.

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I am getting some big wet snowflakes currently mixing in with the rain.

Sitting at 37 degrees so nothing will accumulate today.

I still think we may see a solid 3 inches this evening. All models are showing the heavier precip tonight and the temperature should be dropping as the low goes by. Western Kentucky has been getting good snows today and the heavier precip should move here later.

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I am getting some big wet snowflakes currently mixing in with the rain.

Sitting at 37 degrees so nothing will accumulate today.

I still think we may see a solid 3 inches this evening. All models are showing the heavier precip tonight and the temperature should be dropping as the low goes by. Western Kentucky has been getting good snows today and the heavier precip should move here later.

Somebody may be in for a surprise later this evening, check out the heavy/convective precip in TN

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Somebody may be in for a surprise later this evening, check out the heavy/convective precip in TN

NWS Pit doesn't think so. They think 1 inch for Pit and 1-4 in the ridges.

They know better than I do but my gut is telling me we do better than 1 inch tonight. The ridges and Johnstown area should do much better though. I guess a lot will depend on how quickly the rain changes to snow tonight.

NATIONAL WEATHER SERVICE PITTSBURGH PA

1208 PM EST MON FEB 7 2011

.SYNOPSIS...

-- Changed Discussion --A COLD FRONT WILL CROSS THE REGION THIS AFTERNOON WITH A MIX OF

RAIN AND SNOW TURNING OVER TO ALL SNOW SHOWERS IN THE WAKE OF THE

SYSTEM TONIGHT. A NORTHWESTERLY FLOW WILL USHER IN MUCH COLDER

TEMPERATURES WITH SNOW SHOWERS DIMINISHING ON TUESDAY. HIGH

PRESSURE WILL BUILD INTO THE AREA WITH BELOW NORMAL TEMPERATURES

EXPECTED FOR THE MID-WEEK.-- End Changed Discussion --

&&

.NEAR TERM /THROUGH TONIGHT/...

-- Changed Discussion --TWO SEPARATE AREAS OF PRECIPITATION ARE CURRENTLY SHOWING UP ON

THE RADAR DURING THE EARLY AFTERNOON HOURS. ONE AREA OF

PRECIPITATION ACROSS EASTERN OHIO AND WESTERN PENNSYLVANIA IS

BRINGING A MIX OF RAIN AND SNOW TO THE AREA. WITH WARM GROUND

TEMPERATURES...EXPECT LITTLE TO NO ACCUMULATION WITH SNOW MELTING

AS IT REACHES THE GROUND. A SECOND AREA OF PRECIPITATION OVER

NORTHERN KENTUCKY AND SOUTHWESTERN OHIO WILL CONTINUE TO MOVE TO

THE NORTHEAST DURING THE AFTERNOON HOURS ALONG A COLD FRONT.

CURRENTLY APPEARS THAT THE BULK OF PRECIPITATION WILL REMAIN TO

THE SOUTH AND EAST OF PITTSBURGH...WITH MOST ACCUMULATION FALLING

IN RAIN...WITH AIR TEMPERATURES IN THE UPPER 30S AND LOWER 40S.

TONIGHT...THE COLD FRONT WILL MOVE EAST OF THE AREA AS THE SURFACE

LOW STRENGTHENS AND MERGES INTO A COASTAL LOW. IN THE WAKE OF THE

FRONT...PRECIPITATION ON THE BACK SIDE OF THE LOW WILL BE IN THE

FORM OF SNOW SHOWERS ACROSS THE AREA. LINGERING MOISTURE WILL ALLOW

FOR AROUND AN INCH POSSIBLE ACROSS THE LOWLAND OF WESTERN PA AND

NORTH-CENTRAL WV...WITH 1 TO 4 INCHES WITH UPSLOPING ENHANCEMENT

AND COLDER TEMPS ACROSS THE EASTERN RIDGES. AT THE MOMENT...WILL

HOLD OFF A WINTER WEATHER ADVISORY FOR THE EASTERN RIDGES WITH

FORECAST ACCUMS MARGINALLY BELOW CRITERIA. HOWEVER...INCREASING

CONFIDENCE IN UPSLOPING IN THE WAKE OF THE SYSTEM THROUGH

TUESDAY AFTERNOON MAY REQUIRE AN ADVISORY. WITH COLD AIR ADVECTION

BEGINNING TO KICK IN...LOWS WILL RANGE FROM THE UPPER TEENS ACROSS

EASTERN OHIO AND THE I-80 CORRIDOR TO THE LOWER 20S IN NORTH

CENTRAL WV.-- End Changed Discussion --

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NWS Pit doesn't think so. They think 1 inch for Pit and 1-4 in the ridges.

They know better than I do but my gut is telling me we do better than 1 inch tonight. The ridges and Johnstown area should do much better though. I guess a lot will depend on how quickly the rain changes to snow tonight.

Certainly the further east and higher up one is will make things better.... but even as far west as Murrysville-Masontown should expect 2 or 3" of wet snow. I think once east of 119 some could see up to 5"

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