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Pittsburgh/Western Pa Weather


meatwad

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URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE PITTSBURGH PA
1152 PM EST SUN JAN 26 2014

OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023-029-
031-073-075-WVZ001>004-012-021-022-271300-
/O.EXB.KPBZ.WW.Y.0006.140127T0600Z-140127T1500Z/
/O.CON.KPBZ.WC.Y.0006.140127T1700Z-140128T0500Z/
/O.CON.KPBZ.WC.A.0002.140128T0500Z-140128T1500Z/
TUSCARAWAS-CARROLL-COLUMBIANA-COSHOCTON-HARRISON-JEFFERSON OH-
MUSKINGUM-GUERNSEY-BELMONT-NOBLE-MONROE-MERCER-VENANGO-FOREST-
LAWRENCE-BUTLER-CLARION-JEFFERSON PA-BEAVER-ALLEGHENY-ARMSTRONG-
INDIANA-WASHINGTON-GREENE-WESTMORELAND-FAYETTE-HANCOCK-BROOKE-
OHIO-MARSHALL-WETZEL-MARION-MONONGALIA-
INCLUDING THE CITIES OF...NEW PHILADELPHIA...CARROLLTON...SALEM...
COSHOCTON...CADIZ...STEUBENVILLE...ZANESVILLE...CAMBRIDGE...
ST. CLAIRSVILLE...CALDWELL...WOODSFIELD...GROVE CITY...FRANKLIN...
TIONESTA...NEW CASTLE...BUTLER...CLARION...BROOKVILLE...BEAVER...
PITTSBURGH METRO AREA...KITTANNING...INDIANA...WASHINGTON...
WAYNESBURG...GREENSBURG...LATROBE...UNIONTOWN...WEIRTON...
BETHANY...WHEELING...MOUNDSVILLE...NEW MARTINSVILLE...FAIRMONT...
MORGANTOWN
1152 PM EST SUN JAN 26 2014

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 AM EST MONDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM NOON MONDAY TO
MIDNIGHT EST MONDAY NIGHT...
...WIND CHILL WATCH REMAINS IN EFFECT FROM LATE MONDAY NIGHT
THROUGH TUESDAY MORNING...

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
UNTIL 10 AM EST MONDAY.

* SNOW ACCUMULATIONS...1 TO 2 INCHES.

* TIMING...SNOW WILL DEVELOP ALONG A COLD FRONT THAT WILL MOVE
FROM WEST TO EAST AFTER 1 AM IN ZANESVILLE TO AROUND 4 AM IN
PITTSBURGH. A BURST OF HEAVY SNOW IS LIKELY WITH THE FRONTAL
PASSAGE.

* SNOW ENDING...SNOW FALL WILL ONLY LAST A FEW HOURS AND END AT
MOST LOCATIONS BY LATE MORNING.

* WINDS...SOUTHWEST 10 TO 20 MPH WINDS WILL TURN NORTHWEST WITH
GUSTS UP TO 45 MPH AFTER THE FRONTAL PASSAGE.

* VISIBILITIES...BELOW ONE QUARTER OF A MILE TO POSSIBLE BRIEF
WHITE OUT CONDITIONS WITH THE FRONTAL PASSAGE. THE DURATION OF
THE WORST VISIBILITIES IS LIKELY TO BE SHORT...AROUND AN HOUR OR
SO AT ANY PARTICULAR LOCATION.

* TEMPERATURES...FALLING TO AS LOW AS 14 BELOW TONIGHT.

* WIND CHILL...WILL FALL BELOW 10 BELOW THIS AFTERNOON...AND
LIKELY 25 TO 30 BELOW TONIGHT INTO TUESDAY MORNING.

* IMPACTS...FROST BITE AND HYPOTHERMIA ARE POSSIBLE IF PRECAUTIONS
ARE NOT TAKEN.

* IMPACTS...DANGEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO
FALLING TEMPERATURES AND A BRIEF PERIOD OF STRONG WINDS...HEAVY
SNOW AND NEAR ZERO VISIBILITY.

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Continuing northern stream dominance means we probably won't see nearly that much snow, but it's nice to look at nonetheless.  Plus the relaxation of the cold pattern may mean p-type issues for at least next weekend, if not beyond.  The long-term seems to be bouncing between extended warmth and the return of cold air.

 

I would be more inclined to believe a repeat of this past weekend (a general 3-5" in the area), or a system moving further north.  50/50

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That snow map is actually 2 different storms, an overrunning event on Friday, then looks like a weak area of low pressure gets going and rides up through eastern PA off the coast. The Euro has nothing Friday and rain following later in the weekend..

 

Then the Feb 5th storm the GFS cuts right over top of us for a pounding rain storm, but from what I can gather the Euro tracks it further east.

 

No confidence at all in what is going to happen outside of the next 72 -96 hours although at least for the weekend I'd lean towards the less favorable solution as the Euro has the GGEM on it's side and some of the GEFS as well. Would be nice to see the models converge onto a solution here. If I could I'd cash out now and take that GFS solution for the weekend to the bank though!

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Well the 00z gfs came north and weaker. Looks like we most likely will miss this system. Well I was more interested in the 6-9 period. Looks like a monster is brewing that we could maybe be in the path.

The storm Saturday is probably not going to pan out for us, maybe some snow but we are def going to warm it seems. Only model showing snow really is the GFS. Speaking of the GFS, run through the loop on the 6z, its cold and snowy! After the weekend, and espcially mid week next week looks to have something big brewing. Seems like the Euro and GFS are on board, of course no guarantee but good agreement for so far out. Could be a really fun week coming up.

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The storm Saturday is probably not going to pan out for us, maybe some snow but we are def going to warm it seems. Only model showing snow really is the GFS. Speaking of the GFS, run through the loop on the 6z, its cold and snowy! After the weekend, and espcially mid week next week looks to have something big brewing. Seems like the Euro and GFS are on board, of course no guarantee but good agreement for so far out. Could be a really fun week coming up.

12z GFS is now joining the other models and cutting into the lakes so it looks like rain for this weekend. 

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12z GFS is now joining the other models and cutting into the lakes so it looks like rain for this weekend. 

Not before a light snow on Friday. Also verbatim probably some snow or sleet to start. It looks like only 12-18 hours Saturday afternoon - Sunday morning of above freezing temps for those hoping to hold onto snow pack into next week. If we get heavy rain it might not matter though. I'm hoping it trends cooler, drier and shorter in duration wtih the expectation that snow is off the table.

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Well 12z GFS won't make any friends for next weeks storm. Copius amounts of rain as the strom cuts into NW PA. Probably some flooding with snow melt, ice jammed rivers and 2+ inches of rain!

 

This soltuion is going to bounce all around for the next several days I think so I wouldn't get to high or low with expectations.

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Well good thing is a week away or else I would throw in the towel but if we see a GLC and we get rain/ice Ill lose it.

It's funny how things seem to work around here with most of these storms. When we're in the bullseye this far out, they almost always trend either too far east or too far west after that. When it happens to show a GLC this far out, they don't seem to want to budge. Hope this one is different anyway.

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It's still too soon to have a lock on this weekend's storm, much less one 7+ days out.  My biggest concern is the lack of favorable teleconnections.  I don't know what the EPO says, but it appears both the AO and the NAO will be in unfavorable states.  Since the EPO has been driving most of the play this winter, I'll hedge and say most positive outcomes would rely on the EPO being favorable at this time (unless the predictions change, of course).

 

Unfortunately the STJ wasn't active when we had all the fresh cold air hanging around.

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It's funny how things seem to work around here with most of these storms. When we're in the bullseye this far out, they almost always trend either too far east or too far west after that. When it happens to show a GLC this far out, they don't seem to want to budge. Hope this one is different anyway.

The cutter thing does seem to always hold true, but I think the reason is because if a storm cuts 50 miles west of us or 500 miles west of us, the end result is the same, raging SW winds and rain. On the other hand, for a good snow storm, if the track wobles 100 miles it can take you out of it so there is much less margin of error to get the same result. I think this preception inflates the "Cutters Gonna Cut" mentality. Just my 2 cents.

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