[MCD] SWOMCD

Thu Jun 22 21:43:24 UTC 2006

ACUS11 KWNS 222143
SWOMCD
SPC MCD 222143 
NYZ000-PAZ000-NJZ000-MDZ000-WVZ000-VAZ000-OHZ000-222215-

MESOSCALE DISCUSSION 1309
NWS STORM PREDICTION CENTER NORMAN OK
0443 PM CDT THU JUN 22 2006

AREAS AFFECTED...CENTRAL AND ERN PA/SRN NY

CONCERNING...SEVERE THUNDERSTORM WATCH 543...

VALID 222143Z - 222215Z

NEW WW IS BEING CONSIDERED DOWNSTREAM INTO CENTRAL/ERN PA AND SRN
NY.

THREAT FOR SEVERE STORMS PRODUCING DAMAGING WINDS...HAIL...AND AN
ISOLATED TORNADO POTENTIAL WILL CONTINUE SPREADING EWD ACROSS WW 543
DURING THE NEXT SEVERAL HOURS. 

CLUSTERS OF STRONG TO SEVERE STORMS ARE ONGOING ACROSS WRN PA WITH
AN ESTABLISHED BOW ECHO...NOW LOCATED OVER ERN OH /SUMMIT TO NRN
COSHOCTON COUNTIES/...APPROACHING WRN PART OF WW 543 BY 22-2230Z.
AIR MASS ACROSS THE OH VALLEY INTO ERN PA/SRN NY REMAINS MODERATELY
UNSTABLE AND SUPPORTIVE OF ADDITIONAL SEVERE STORMS THIS EVENING. 
DESPITE ONGOING STORMS OVER WRN PA...CONVECTIVELY OVERTURNING THE
AIR MASS...THE ESTABLISHED COLD POOL WITH THE BOW ECHO AND 50 KT WLY
MID LEVEL FLOW TRANSLATING EWD TO NRN PA/SRN NY THIS EVENING ARE
EXPECTED TO MAINTAIN THE BOW STRUCTURE AND ATTENDANT DAMAGING WIND
THREAT.

FARTHER EAST...THE STRONGER MID LEVEL FLOW IS PROGGED TO ADVANCE EWD
AIDING IN AN INCREASE IN EFFECTIVE BULK SHEAR VALUES... ESPECIALLY
ACROSS SRN NY/NRN PA...WITHIN THE MODERATELY UNSTABLE AIR MASS TO
SUPPORT STORMS MAINTAINING SEVERE POTENTIAL EWD OF WW 543. 
THUS...NEW WW IS BEING CONSIDERED FOR CENTRAL-ERN PA AND SRN NY.

..PETERS.. 06/22/2006

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...PHI...BGM...BUF...CTP...LWX...RNK...PBZ...RLX...CLE...

38047993 38078243 42078037 42687892 42917762 42777561
42167476 41307492 40267554 39757669 39197817 

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