SWOMCD
SPC MCD 092021
NYZ000-PAZ000-092215-
MESOSCALE DISCUSSION 1230
NWS STORM PREDICTION CENTER NORMAN OK
0321 PM CDT FRI JUL 09 2010
AREAS AFFECTED...WEST-CENTRAL PORTIONS OF PA/NY
CONCERNING...HEAVY RAINFALL
VALID 092021Z - 092215Z
VERY HEAVY RAINFALL...WITH RATES OF 1-2 IN/HR...WILL BECOME
INCREASINGLY LIKELY THROUGH EARLY EVENING ACROSS WEST-CENTRAL
PORTIONS OF PA/NY. ALTHOUGH HEAVY RAINFALL WILL BE THE PRIMARY
CONCERN...A ROGUE DOWNBURST CANNOT BE RULED OUT THROUGH AROUND
SUNSET.
WITH A SURFACE LOW IN THE VICINITY OF LAKE ONTARIO/FAR SOUTHEAST
ONTARIO...BANDS OF TSTMS WILL CONTINUE TO DEVELOP/CONSOLIDATE ACROSS
WEST-CENTRAL PORTIONS OF NY/PA...ALONG/IMMEDIATELY AHEAD OF AN
EASTWARD MOVING COLD FRONT. WITHIN THIS CORRIDOR...PRECIPITABLE
WATER VALUES ARE WELL ABOVE NORMAL...WITH VALUES AS HIGH AS 1.5-1.8
INCHES PER GPS DERIVED DATA. WSR-88D DERIVED WINDS ARE REFLECTIVE OF
MODEST/SOUTHWESTERLY LOW TO MID TROPOSPHERIC MEAN FLOW...WHICH IS
LARGELY ORIENTED PARALLEL TO THE SYNOPTIC COLD FRONT. HIGH FREEZING
LEVELS/HIGH MOISTURE CONTENT AND NET HIGH PRECIPITATION
EFFICIENCIES...IN CONJUNCTION WITH FRONTAL/OUTFLOW PARALLEL STORM
MOTIONS...WILL SUPPORT INCREASING POTENTIAL FOR SLOW MOVING HEAVY
RAINFALL-PRODUCING BANDS OF STORMS THROUGH THE EARLY EVENING HOURS
ACROSS WEST-CENTRAL PA/NY.
..GUYER.. 07/09/2010
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...BTV...ALY...BGM...BUF...CTP...PBZ...
LAT...LON 43717645 44517501 43667415 41827648 39867791 39747868
40347950 40957917 41937847 42777762 43717645
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
To unsubscribe from WX-STORM send e-mail to LISTSERV@LISTSERV.ILLINOIS.EDU with
"unsub wx-storm" in the body of your message. For more information write cnovy@cox.net.
No comments:
Post a Comment