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Displaying AFOS PIL: SWOMCD Product Timestamp: 1998-06-02 19:37 UTC
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198 ACUS3 KMKC 021937 SWOMCD MKC MCD 021935 PAZ000-WVZ000-MDZ000-NYZ000-022200- SPC MESOSCALE DISCUSSION 0535 FOR WESTERN NY/WRN AND CNTRL PA/NRN WV/WESTERN MD CONCERNING...SEVERE THUNDERSTORM POTENTIAL... LATEST RADAR DATA INDICATES THUNDERSTORMS DEVELOPING ACROSS PORTIONS OF ONTARIO INTO NRN OH. WATER VAPOR IMAGERY SHOWS THESE STORMS ARE DEVELOPING IN ADVANCE OF A MID-LEVEL SHORTWAVE TROF WHICH IS MOVING SEWD TOWARD THIS AREA. SURFACE ANALYSIS SHOWS TROF EXTENDS FROM SURFACE LOW OVER LAKE HURON INTO ERN KY WITH MODERATELY UNSTABLE AIRMASS E OF THIS BOUNDARY. SURFACE-BASED CAPE VALUES WERE AS HIGH AS 2500 J/KG ACROSS OH. USING ELY/SELY STORM MOVEMENT WITH VWP FROM KCLE YIELDS STORM-RELATIVE HELICITY VALUES TO 300 M2/S2. WITH DYNAMIC FORCING BEGINNING TO INTERACT WITH THIS MODERATELY UNSTABLE AIRMASS...BELIEVE STORMS SHOULD CONTINUE TO INCREASE/ DEVELOP. WW WILL LIKELY BE REQUIRED IN THE NEXT HOUR. ..HOVIS.. 06/02/98 ...PLEASE SEE WWW.NSSL.NOAA.GOV/SPC FOR GRAPHIC PRODUCT...