Monday, July 18, 2011

    High pressure maintains control over much of the forecast area today under mostly cloudy skies. Cold front will sag south, bringing chance for scattered storms tonight into Tuesday. Storms could produce strong winds & heavy rains, especially for the northern half of our state. Very hot & humid forecast returns Wednesday with heat indices closing in on 100 through the end of the week.

    Highs today will be in the low 90s under partly to mostly cloudy skies. Cold front in the vicinity of the Great Lakes will sag south into our area tonight, into Tuesday. Westerly flow aloft, plenty of daytime heating will mix with that frontal boundary as it progresses south triggering the threat for severe weather tonight for our northern zones. Strong gusty winds, hail, heavy rainfall will accompany those storm cells as they move southward tonight. Tornado development is also not out of the realm of possibility. Tune in to local TV/radio tonight to stay informed in the event of severe weather. Breezy & cloudy overnight with periods of rain & storms. Lows will be in the low 70s.

    Forecast will stay muggy & generally cloudy with dew points in the low 70s Tuesday. Lingering moisture & northwest flow will keep periods of rain & a few storms in the forecast throughout the day. Highs will be around 90. High pressure & hot air from the Midwest will begin to build into the eastern US late Tuesday. Chance for convective storms will gradually diminish by Wednesday.

    Attention will turn to broad high pressure building into our area from the Midwest by Wednesday. Forecast will stay generally dry & sunny into Friday. But conditions will be hazy, hot and humid with heat indices reaching close to 100 degrees both Wednesday & Thursday. Even the overnight lows will stay in the low to mid 70s. These conditions will not only make for an uncomfortable forecast; things could become downright dangerous. This kind of heat combined with high humidity values can make it difficult for your body to sweat, inhibiting the cooling effects of evaporation off the skin. Remember what we learned in health class about the effects of dehydration, heat exhaustion & other heat-related maladies. Keeping the body cool & hydrated is of the utmost importance. Will update later this week if any heat-related warnings pop up on the grid.

    Westerly flow aloft will force hot continental tropical air well into the northeastern states by Thursday/Friday. Heat-related health problems will become more widespread later this week. Heat wave could be blamed for a number of health problems & deaths, especially in the northeast. Folks in the northeast are especially vulnerable to heat-related health problems because temps usually stay fairly mild & they rarely use AC.

    A few weak disturbances will keep the slight chance for a few pop up showers & storms each afternoon/evening for Friday, Saturday & Sunday. Temperatures look like they will moderate back into the low 90s.

     In the Atlantic Ocean...A tropical storm warnings has been issued for Tropical Storm Bret, currently 65 miles north of the Bahamas, east Florida. Maximum sustained winds are 45 knots. Gusts up to 55 knots. Minimum pressure is 1000 millibars. Bret is forecast to move NNE at 5 knots an hour. Some intensification over the next 24 hours or so. Bret will most likely weaken due to upper level wind shear.