Wednesday, July 13, 2011

    Cold front progresses southward today with slight chance for a few afternoon storms to fire, mainly in the southern half of our state. High pressure & slightly cooler air will begin to filter into the Mid-Atlantic states Thursday into Friday. Moisture returns late Friday. We'll keep the weekend forecast mostly sunny & mainly dry. A few shortwave disturbances may trigger a few isolated thunderstorms over the weekend. We'll also start a gradual warming trend into 80s/low 90s Saturday through next week.

    For today...Clouds beginning to break up, especially north. Further south, daytime heating and lingering moisture will trigger a few afternoon storms for TN, KY, VA & southernmost parts of West Virginia. Highs today will be in the in the mid 80s. High pressure & cooler air aloft will begin to move into our area, setting us up for calm but foggy overnight. Overnight lows will be in the mid/upper 50s.

    A leftover shower or two may still linger around Charleston/Huntington tomorrow morning. Otherwise, high pressure & plenty of sunshine is on deck for Thursday. Highs will be in the low to mid 80s but lower dew points & less humidity will make for a more comfortable daytime & night time forecast. Lows will fall to around 60 Thursday night, with patchy fog.

    Big broad high pressure ridge over the eastern US will slowly erode while low level moisture returns sometime Friday. So Friday will start under mostly sunny skies, turning to mostly cloudy as the day progresses. Highs will stay modest, in the mid 80s.

    Warmer temps & higher humidity values will raise the heat index into the low/mid 90s. Daytime highs will hit the mid to upper 80s Saturday, then temps will reach just a degree or two higher each day than the previous. Low level moisture & daytime heating will most likely trigger a few weekend thunder cells. Hazy & hot forecast with mostly sunny skies & a few pop up thunderstorms for next week.

    Lots of continental tropical air will continue to spread north, invading the Midwest this week. This trend will continue into next week as well. Hot air will eventually ride along a westerly flow & reach the eastern US late this weekend/next week. Hazard map courtesy of NWS