**STRONG TO ISOLATED SEVERE THUNDERSTORMS** STRUCK PORTIONS OF EASTERN, NY TODAY, THEN LATER THIS AFTERNOON MAINLY ALONG THE SOUTH & EASTERN SHORES OF LAKE ONTARIO ASSOCIATED WITH A MUCH SLOWER SAGGING LOW PRESSURE TROUGH & WEAK COLD FRONT. THIS WEAKENING TROUGH/ COLD FRONT WILL CROSS THE NY/ PA BODER AFTER MIDNIGHT WITH ONLY LEFTOVER DEBRIS CLOUDS & MAYBE A BIT OF DRIZZLE OR A LIGHT SHOWER, AS WE LOSE THE DAYTIME SURFACE HEATING, SO THE REST OF THE NIGHT WILL MAINLY BE MOSTLY CLOUDY & MILD ACROSS THE SOUTHERN TIER OF NY & NORTHERN, PA WITH LOWS FROM 55 TO 60 DEGREES. ***ANOTHER UPPER- LEVEL TROUGH IS FORECAST TO SWEEP EAST ACROSS THE AREA, ALONG WITH AN UPPER LOW PRESSURE SYSTEM DROPPING SOUTHEAST FROM QUEBEC. DUE TO MORE CLOUDS EXPECTED THAN TODAY...CONVECTIVE ENERGY VALUES WILL BE LOWER FROM 200 TO 400 J/ KG`S, SO A MORE GENERAL SCATTERED SHOWERS WITH EMBEDDED THUNDER IS ONLY EXPECTED FOR MOST OF THE REGION DURING TUESDAY. AFTERNOON HIGHS WILL BE COOLER TO THE LOWER 70`S IN MOST LOCATIONS WITH BREEZY CONDITIONS, AT TIMES. **TUESDAY NIGHT...EXPECT CLEARING SKIES & MUCH COOLER TEMPERATURES, AS HIGH PRESSURE BUILDS INTO WESTERN, NY LATER IN THE EVENING WITH SOME RADIATIONAL COOLING TO TAKE PLACE, LOWERING READINGS THROUGH THE MIDDLE 40`S IN MANY LOCATIONS. ***BEGINNING WEDNESDAY...MOSTLY SUNNY/ DRY CONDITIONS WILL ENCOMPASS THE REGION AS A LARGE AREA OF HIGH PRESSURE TAKES CONTROL OF THE REGION THROUGH THE REMAINDER OF THE WEEKS WITH A GRADUAL WARMING TREND WITH PLEASANT AFTERNOON READINGS UP INTO THE MID 70`S OCCUR, BUT FROM 80 TO NEAR 85 ON THURSDAY & TO THE UPPER 80`S TO NEAR 90 DEGREES BY FRIDAY AFTERNOON, AS THE LARGE HIGH PRESSURE SYSTEM BEGINS TO ANCHOR ITSELF OFF THE MIDDLE ATLANTIC COASTLINE, PUMPING UP A MORE SOUTH TO SOUTHWESTERLY VERY WARM & MORE HUMID FLOW. **FROM** STEVE MATTISON...VOLUNTEER SKYWARN SPOTTER FOR THE NWS.
Posted on: Tue, 18 Jun 2013 00:44:02 +0000
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