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Pittsburgh/Western Pa Weather


north pgh

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You may not have meant anything by it.

But don't come into this thread, post a map, and cancel an event before it starts.

Mabey I'm the only one, but nobody I know here in Pittsburgh, uses Pitt as an abbreviation for Pittsburgh.

Fair enough, I won't do it again

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That would be hilarious if it actually verified.

That would be crazy for sure. At best, we'd probably have another situation where higher elevations get some snow and we get a cold rain, especially since that's going even later into the season than we already are now. I just want it to stay warmer now and forget about the winter at this point. I don't need Mother Nature playing any more tricks on us or the models! Lol

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Mesoscale Discussion 664 < Previous MD mcd0664.gif

MESOSCALE DISCUSSION 0664

NWS STORM PREDICTION CENTER NORMAN OK

0356 PM CDT WED MAY 02 2012

AREAS AFFECTED...NORTHEAST OH/WESTERN PA/FAR WESTERN NY TO WV

PANHANDLE/NORTHERN VA

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 022056Z - 022300Z

PROBABILITY OF WATCH ISSUANCE...40 PERCENT

SUMMARY...AT LEAST AN ISOLATED SEVERE THREAT MAY DEVELOP/POTENTIALLY

INCREASE THROUGH EARLY EVENING ACROSS PORTIONS OF NORTHEAST

OH/WESTERN PA AND EVENTUALLY FAR WESTERN NY...SOUTHEASTWARD TO

WESTERN MD/NORTHERN VA/WV PANHANDLE.

DISCUSSION...ALONG/SOUTHWEST OF A WARM FRONT...VISIBLE SATELLITE

TRENDS REFLECT SOME INCREASE IN THE CU FIELD OVER THE PAST FEW HOURS

ESPECIALLY ACROSS MUCH OF WESTERN PA AND ADJACENT PORTIONS OF

WESTERN MD/WV PANHANDLE AND NORTHERN VA...WITH A FEW TSTMS AS OF

21Z. ADDITIONALLY...WHILE THE CU FIELD HAS REMAINED RELATIVELY FLAT

FARTHER WEST-NORTHWEST...AN ASSORTMENT OF SHORT-TERM NUMERICAL

GUIDANCE SHOW RELATIVELY STRONG INDICATIONS OF THE POTENTIAL FOR AN

UPSWING IN DEEP CONVECTION BY EARLY EVENING ACROSS PORTIONS OF

NORTHEAST OH/NORTHWEST PA AND EVENTUALLY FAR WESTERN NY. THIS WOULD

LIKELY BE TIED OF THE SOUTHERN FRINGE OF A MID-LEVEL TROUGH OVER

ONTARIO...IN CONJUNCTION WITH DIFFERENTIAL HEATING/NEAR-LAKE

CONVERGENCE. SHOULD THIS OCCUR...A SEVERE THREAT MAINLY IN THE FORM

OF DAMAGING WINDS/SEVERE HAIL COULD INCREASE EARLY THIS EVENING SUCH

THAT A WATCH COULD BE WARRANTED.

..GUYER/CARBIN.. 05/02/2012

ATTN...WFO...BUF...CTP...LWX...PBZ...CLE...

LAT...LON 42807895 42257861 41147831 39317729 38487776 39067885

40408028 40568153 40688200 40948234 41378260 41658199

41828147 42307987 42807895

Waiting and watching for the line to fire to our N&W. Looking at a modified sounding...thinking wind will be primary strong/severe threat.

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Blah...bustola. Shortwave passing well to north...warm front well to the north...CIN (convective inhibition) btw 800mb-650mb, as per 00Z sounding, screwed this one. We'll see if the current lower Mississippi Valley trof can enhance our chances again tomorrow night, probably late night.

Being a thunderstorm lover I was looking forward to Monday, Tuesday and Wednesday night having solid chances for thunderstorms. Monday night's complex weakens and gives us a few light showers. Tuesday's complex weakens and moves south and we get a few light showers. Tonight it all fires North and East and even though it was predicted, nothing comes out of Ohio.

3 solid busts.

I am golfing tomorrow morning and no storms are forecasted so watch the skies open up on the course. ;)

After typing this I noticed that some storms have popped up around Mansfield, Ohio. Now that NWS Pit has changed the forecast to "Mostly Clear" overnight, wouldn't it be nice to have a storm move through. Just be out of here tomorrow am.

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After typing this I noticed that some storms have popped up around Mansfield, Ohio. Now that NWS Pit has changed the forecast to "Mostly Clear" overnight, wouldn't it be nice to have a storm move through.

Wake up!

Clear is good. Makes it easier to see the lightning.... :lightning:

Edit to add:

SPECIAL WEATHER STATEMENT

NATIONAL WEATHER SERVICE PITTSBURGH PA

324 AM EDT THU MAY 3 2012

OHZ040-041-049-050-PAZ014-020>022-029-073-WVZ001-002-030830-

ALLEGHENY PA-ARMSTRONG PA-BEAVER PA-BROOKE WV-BUTLER PA-CARROLL

OH-COLUMBIANA OH-HANCOCK WV-HARRISON OH-JEFFERSON OH-WASHINGTON

PA-WESTMORELAND PA-

324 AM EDT THU MAY 3 2012

...HEAVY RAIN...

THUNDERSTORMS WITH HEAVY RAIN WILL MOVE THROUGH THE FOLLOWING

COUNTIES...

CARROLL...COLUMBIANA...HARRISON...JEFFERSON...ALLEGHENY...

ARMSTRONG...BEAVER...BUTLER...WASHINGTON...WESTMORELAND...HANCOCK AND

BROOKE...

AT 322 AM EDT NATIONAL WEATHER SERVICE RADAR IN PITTSBURGH INDICATED

THUNDERSTORMS WITH HEAVY RAIN ALONG A LINE EXTENDING FROM FREEPORT TO

BEAVER TO 3 MILES SOUTHEAST OF KILGORE...MOVING SOUTH AT 25 MPH.

SOME OF THESE STORMS WILL BE ACCOMPANIED BY DANGEROUS LIGHTNING...

SMALL HAIL AND WIND GUSTS TO 30 MPH.

THESE THUNDERSTORMS ARE GENERATING HEAVY RAIN THAT WILL POND WATER ON

ROADS AND IN LOW LYING AREAS.

SOME LOCATIONS THAT WILL BE IMPACTED BY THESE THUNDERSTORMS

INCLUDE...

NEWELL... CHESTER... SARVER...

MARS... LERNERVILLE... CRANBERRY...

BLACKHAWK... BEAVER FALLS... BEAVER...

WELLSVILLE... KILGORE... HAMMONDSVILLE...

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Yeah, it woke me up about 4:30 this morning. The NWS had t'storms in the forecast for last night and then changed it to mostly clear. It seems like anytime they give up on something, that's when we end up getting it. Lol

Yeah I obviously gave up on it too...the bustola was NWS and me! Nighttime/overnight convection around here is beyond maddening to forecast. My situation is compounded by our office cloing at midnight, and then reopening at 4am...so I have to try and give precise point thunderstorm warnings 1-4hrs in advance. :axe:

Man after the snow debacle last week and this t-storm event, I've had two of my worst busts in almost 10 years of forecasting...ugh.

As I mentioned before, we'll see if something late tonight, from the southwest influence of the current Tennesee Valley shortwave.

If not, hoping coinciding with peak heating, the front Friday afternoon should make for some easier forecasting, and hopefully some action to track.

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Well I had a minute of rain, just a trace...but the towering Cu are a sight to see all around me. I'm actually heading over to McMurray in a little bit to pay a bill...small world.

That's about all I had. The sun pretty much stayed out the whole time. There's another cell moving through the WV panhandle that we might have a shot at.

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mcd0744.gif

MESOSCALE DISCUSSION 0744

NWS STORM PREDICTION CENTER NORMAN OK

1240 PM CDT MON MAY 07 2012

AREAS AFFECTED...SRN AND ERN OH...FAR NRN KY....SWRN PA....FAR NRN

WV

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 071740Z - 071945Z

PROBABILITY OF WATCH ISSUANCE...40 PERCENT

SUMMARY...THUNDERSTORMS ARE EXPECTED TO INCREASE EARLY THIS

AFTERNOON. STRONG TO SEVERE WIND GUSTS WILL BE THE MAIN THREAT BUT

ISOLATED INSTANCES OF MARGINALLY SEVERE HAIL WILL BE POSSIBLE WITH

STRONGER CELLS INTO THE EARLY EVENING. CONVECTIVE TRENDS WILL BE

MONITORED FOR A POSSIBLE WW.

DISCUSSION...THUNDERSTORMS WERE BEGINNING TO DEVELOP ALONG AN

OUTFLOW BOUNDARY PRODUCED BY OVERNIGHT CONVECTION ACROSS CNTRL OHIO.

TEMPERATURES HAVE WARMED INTO THE UPPER 70S TO LOW 80S EARLY THIS

AFTERNOON AND WITH DEWPOINTS IN THE LOW TO MID 60S...THE AIR MASS

HAS BECOME MODERATELY UNSTABLE AND UNCAPPED. A BROAD CU FIELD WAS

ALSO NOTED ON 17Z VISIBLE SATELLITE IMAGERY AND A FEW THUNDERSTORMS

HAD ALSO DEVELOP ACROSS SWRN PA IN THE VICINITY OF A NWD RETREATING

WARM FRONT. THIS AREA MAY ALSO SERVE AS ANOTHER FOCUS FOR SEVERE

THUNDERSTORM DEVELOPMENT INTO THE AFTERNOON AND EARLY EVENING HOURS.

DEEP LAYER FLOW ACROSS THE REGION REMAINS FAIRLY WEAK...AROUND 20-30

KT...AND THIS WILL LEAD TO MAINLY MULTICELL CLUSTERS AHEAD OF THE

OUTFLOW BOUNDARY. SHOULD STORMS ORGANIZE ALONG THE BOUNDARY THEY

WOULD POSE A GREAT RISK FOR DAMAGING WIND GUSTS. IN ADDITION TO THE

WEAK SHEAR ENVIRONMENT...WEAK MIDLEVEL LAPSE RATES MAY SOMEWHAT

INHIBIT STORM ORGANIZATION/UPDRAFT STRENGTH DESPITE THE

UNSTABLE/MOIST ENVIRONMENT AND THEREFORE ONLY A MARGINAL SEVERE HAIL

THREAT IS EXPECTED. STEEP LOW LEVEL LAPSE RATES AND HIGH PW VALUES

WILL AID IN GUSTY WIND POTENTIAL WITH ALL STORMS HOWEVER AND THIS IS

EXPECTED TO BE THE MAIN THREAT INTO THE EARLY EVENING HOURS.

CONVECTIVE TRENDS WILL BE MONITORED FOR A POTENTIAL WW THIS

AFTERNOON.

..LEITMAN/MEAD.. 05/07/2012

ATTN...WFO...CTP...PBZ...RLX...CLE...JKL...ILN...LMK...

LAT...LON 40348217 39218392 38798462 38568469 38318458 38098410

38108345 38378274 38598227 39168101 39558001 39867940

40247913 40437918 40697929 40847965 40858009 40858083

40588182 40348217

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