Another great day with highs in the 70s and 80s. A bit warmer tomorrow with highs in the upper 70s to mid-80s area-wide! We also will see a front cross the region tomorrow into tomorrow night. the Storms Prediction Center has highlighted some areas for a marginal risk for severe (About a 5% chance) for tomorrow. The front clears the eastern and southern areas Saturday morning and cooler air follows with highs in the low and mid-60s North and Lower 70s south! The coldest air for some areas will set up morning lows in the upper 30s for the Mountains and 40s for the northern Piedmont areas of the Mid-Atlantic. Long term I am seeing that cold shot again on Models and we could see frosty conditions sometime around Next weekend! We will see.
All for now!
...MID-ATLANTIC... A FAST-MOVING UPPER-LEVEL TROUGH IS FORECAST TO MOVE INTO THE LOWER GREAT LAKES REGION ON FRIDAY AS A COLD FRONT ADVANCES INTO THE CNTRL APPALACHIAN MTNS. AS SFC TEMPS WARM DURING THE DAY...CONVECTION SHOULD GRADUALLY INCREASE ALONG THE FRONT. AHEAD OF THE FRONT...SFC DEWPOINTS IN THE UPPER 50S AND LOWER 60S F SHOULD CONTRIBUTE TO POCKETS OF MODERATE INSTABILITY ACROSS THE MID-ATLANTIC STATES. AS A RESULT...THUNDERSTORMS DEVELOPMENT IS EXPECTED ALONG THE FRONT DURING THE AFTERNOON WITH A FEW MULTICELL LINE SEGMENTS MOVING SEWD ACROSS THE REGION. FORECAST SOUNDINGS AT PHILADELPHIA PA AND RICHMOND VA FOR 21Z/FRIDAY SHOW MLCAPE NEAR 1000 J/KG WITH 0-6 KM SHEAR OF 35 KT. THIS COMBINED WITH VEERED WINDS AT LOW-LEVELS AND UNIDIRECTIONAL WIND PROFILES ABOVE 850 MB MAY BE ENOUGH FOR MARGINALLY SEVERE WIND GUSTS WITH THE STRONGER MULTICELLS ALONG THE FRONT.