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Central PA - second half of March 2013


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This storm coming in now is more fearsome than the warned one.

 

EDIT: Holy s**t, I've never seen so many consecutive close strikes.

 

 

This storm coming in now is more fearsome than the warned one.

 

EDIT: Holy s**t, I've never seen so many consecutive close strikes.

 

 

Lightning hit one of the halls possibly in west? Saw it from the library, everyone is freaking out haha

I am pretty sure lighting struck the Frasier Street Garage. Blinding flash when I was looking out the window and loud wall shaking crash. 

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 MESOSCALE DISCUSSION 0431   NWS STORM PREDICTION CENTER NORMAN OK   0459 PM CDT WED APR 10 2013      AREAS AFFECTED...PORTIONS PA...ERN OH...NRN WV PANHANDLE...SERN   NY...NRN NJ.      CONCERNING...SEVERE POTENTIAL...WATCH LIKELY       VALID 102159Z - 102300Z      PROBABILITY OF WATCH ISSUANCE...80 PERCENT      SUMMARY...TWO PRIMARY/BOWING TSTM COMPLEXES -- ONE MOVING NEWD OUT   OF NERN PA...SECOND MOVING EWD FROM NERN OH -- ARE FCST TO OFFER   DAMAGING WIND POTENTIAL.  EASTERN ONE WILL BE SHORTER-LIVED...MOVING   INTO MORE STABLE AIR.  WESTERN COMPLEX MAY PERSIST WITH SVR THREAT   RELATIVELY MAXIMIZED NEAR OUTFLOW BOUNDARY FROM FIRST.  ISOLATED TO   WIDELY SCATTERED TSTMS ALONG THEIR OUTFLOW BOUNDARIES MAY PRODUCE   OCNL HAIL AND GUSTS NEAR SVR LIMITS...BUT THREAT FROM THOSE APPEARS   MRGL/TRANSIENT.  ELEVATED CONVECTION WELL N OF BOUNDARY SHOULD   REMAIN LARGELY SUB-SVR...BUT WITH ISOLATED HAIL NEAR SVR LIMITS AND   STG GUSTS.  NEW WW IS BEING CONSIDERED THAT WOULD COVER WRN COMPLEX.      DISCUSSION...SFC MESOANALYSIS INDICATED COLD MARINE BOUNDARY FROM   NEAR ACY NNWWD ACROSS BUCKS COUNTY PA THAN ARCHING OVER PIKE COUNTY   PA AND SULLIVAN COUNTY NY...HAVING ALREADY PASSED MSV.  THIS   BOUNDARY  CORRESPONDS WELL TO FINE LINE EVIDENT IN COMPOSITE   REFLECTIVITY ANIMATIONS...MOVING WWD 5-10 KT.  THIS BOUNDARY WILL BE   OVERTAKEN WITHIN NEXT 1-2 HOURS FROM N-S...BY MCS MOVING EWD 45-50   KT OVER NERN PA.  QUASISTATIONARY FRONT INTERSECTED MCS OVER NERN PA   NEAR BORDER WITH SULLIVAN COUNTY NY...AND EXTENDED ENEWD ACROSS SWRN   MA.  NARROW PLUME OF RELATIVELY UNDISTURBED WARM SECTOR WITH AT   LEAST MRGLLY SFC-BASED EFFECTIVE INFLOW PARCELS IS EVIDENT BETWEEN   LEADING MCS AND MARINE BOUNDARY...WITHIN WHICH MCS STILL POSES RISK   OF STG-DAMAGING GUSTS.  THIS RISK WILL DIMINISH SUBSTANTIALLY WITH   EWD EXTENT INTO STABLE MARINE AIR...THOUGH BRIEF/ISOLATED   PENETRATION OF CONVECTIVE GUSTS TO SFC CANNOT BE RULED OUT AS FAR E   AS HUDSON RIVER.      OUTFLOW BOUNDARY FROM NERN PA COMPLEX WAS ANALYZED ACROSS   NORTHUMBERLAND/CAMBRIA/BEAVER COUNTIES PA INTO ERN OH...INTERSECTING   NEXT MCS BETWEEN CAK-PHD.  SECOND COMPLEX EXHIBITS VERY SIMILAR   STRUCTURE AND MOVEMENT TO FIRST...BUT MORE INTENSE...PRODUCING GUSTS   TO 56 KT AT POV AT 2117Z.  ITS DAMAGING-WIND THREAT SHOULD DIMINISH   WITH NWD EXTENT FROM OUTFLOW BOUNDARY...WHERE STABLE LAYER BECOMES   PROGRESSIVELY COOLER AND DEEPER.  NONETHELESS...60-80 KT REAR-INFLOW   JET WAS EVIDENT IN CLE RADAR BASE VELOCITY DATA...INDICATING   CONSIDERABLE MOMENTUM FOR WIND POTENTIAL TO PERSIST INTO WRN PA.    NEAR AND S OF OUTFLOW BOUNDARY...AIR MASS IS CHARACTERIZED BY   SPORADICALLY WELL-MIXED BOUNDARY LAYERS AWAY FROM SMALLER   OUTFLOWS...SUPPORTING THREAT FOR SVR GUSTS.  HOWEVER...DIABATIC SFC   COOLING WILL STABILIZE THIS AIR MASS WITH TIME AND REDUCE ALREADY   MRGL MLCAPE OF AROUND 500 J/KG.  AS SUCH...DAMAGING GUST POTENTIAL   SHOULD DIMINISH WITH TIME AND EWD EXTENT ACROSS CENTRAL-ERN PA.      ..EDWARDS/CORFIDI.. 04/10/2013         ATTN...WFO...OKX...PHI...BGM...CTP...PBZ...CLE...      LAT...LON   40298197 40988109 41718071 41757850 41657496 41237394               40347407 39997552 39767897 40298197    
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More coming...brace yourselves.

 

 SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 91
NWS STORM PREDICTION CENTER NORMAN OK615 PM EDT WED APR 10 2013SEVERE THUNDERSTORM WATCH 91 IS IN EFFECT UNTIL 100 AM EDTFOR THE FOLLOWING LOCATIONSPAC001-003-005-007-009-013-019-021-023-027-031-033-035-041-047-051-053-055-057-059-061-063-065-067-073-087-099-111-125-129-133-110500-/O.NEW.KWNS.SV.A.0091.130410T2215Z-130411T0500Z/PA.    PENNSYLVANIA COUNTIES INCLUDED AREADAMS                ALLEGHENY           ARMSTRONGBEAVER               BEDFORD             BLAIRBUTLER               CAMBRIA             CAMERONCENTRE               CLARION             CLEARFIELDCLINTON              CUMBERLAND          ELKFAYETTE              FOREST              FRANKLINFULTON               GREENE              HUNTINGDONINDIANA              JEFFERSON           JUNIATALAWRENCE             MIFFLIN             PERRYSOMERSET             WASHINGTON          WESTMORELANDYORK$[/quote]
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Think they will maintane their strength reaching Lanc Co?

MCS's can sometimes maintain their own dynamics, despite losing instability that the sun/warmth provided. The Sun is going down now, so we are definitely going to start losing the instability, but with a RIJ that seems pretty healthy, then it won't matter. Also, the instability is completely untapped essentially south of the turnpike. 

 

I would imagine it would hold together somewhat over the next couple hours, but doubt that it'll be as strong as it is now. Could still see some rumbles/gusty winds within an hour or two! I just want to hear a rumble and I'll be a happy camper.

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