An area of low pressure developing over the center Plaines will track northeast towards the Great Lakes on Wednesday. The storm does not look to be very intense and most the of the energy will be to the northwest of Delmarva. However expect rain showers to develop by late morning from west to east and continue off and on through the afternoon and evening. It is possible that areas north and west of Delmarva such as southern PA and central and western MD could see a brief period of a wintry mix at the onset if the precipitation starts early enough. Warm air will then quickly win out and turn everything to rain. A milder push of air will move in tomorrow afternoon and evening and then exit Thursday as a cold front moves through.
Although rainfall amounts should only be around a 1/4 inch or so this would be some welcomed rain. Since the start of 2009 we are already down anywhere from 3-5 inches of precipitation. Typically February is one of the drier months of the year but March averages over 4.5" of precipitation. Also, the overall weather pattern in the next week or so does look fairly active and have potential for some storm development.
Tuesday, February 17, 2009
Wednesday, February 4, 2009
Arctic Air Returns
A chilly day is on tap for the Eastern Shore Thursday, a low pressure system located just of the east coast will continue to move northeast as a high pressure system begins to build in to Ohio Valley area. This set up will help provide cold arctic air to sink into the northeast with windy conditions on Thursday. Along the Eastern Shore there will be bitterly cold temperatures Thursday with highs only in the lower 20s and with winds out of the northeast between 15-25 mph, making wind chills drop into the single digits. Overnight Thursday, winds become calm but with clear skies, which will bring tomorrows evening low near the singles digits to the lower teens. Expect temperatures in Salisbury to be near 8 degrees, and along the coast in the lower teens. Mild temperatures begin to creep back in Friday and especially for the weekend with highs in the 50s.
Monday, February 2, 2009
Another Round of Wintry Weather
After another stellar weather day with highs near 60 degrees, winter weather returns to the forecast. Last week it looked like a disturbance in the southern branch of the jet stream would phase with a disturbance in the northern branch of the jet stream to form a strong storm system. Over the weekend changes occurred in the forecast showing that these two disturbances would not phase and remain separate. This has a big impact on the overall forecast for the northeast as no major storm system will develop. However there still will be the opportunity for some light snow through the day on Tuesday for Delmarva.
An area of low pressure is developing ahead of a cold front over the south and will continue to track northeast on Tuesday. This low pressure area will remain well offshore allowing the heaviest moisture to remain offshore. A second upper-level disturbance will rotate down from the Great Lakes and intensify on Tuesday. Initially the precipitation will arrive overnight Monday in the form as some light rain and snow showers. As the offshore low pressure intensifies on Tuesday, colder air will be drawn into the area allowing the rain to change over to snow during the morning hours. The strong upper-level disturbance will then approach us by the afternoon. This will cause an increase in precipitation in the from of light snow. The axis of heaviest snowfall looks to setup up across Eastern PA, Central NJ, and Southern NJ.
Overall I see the chance for a 1-3 inch snowfall across northern Delmarva and a coating to an inch for central locations. Amounts will really be determined by how quick the rain changes to snow and the location and intensity of the two storm systems. The heaviest precipitation looks to occur in the afternoon. Given the temperatures will be above 32 and the snow falling during the daytime, the highest accumulation should be on grassy areas. However if any heavier bursts develop, the snow will accumulate on the roads with reduced visibility. The snow will then taper off to flurries by the evening and temperatures will fall below freezing. Any standing water will likely freeze so icy conditions are expected Tuesday night and Wednesday morning.
An area of low pressure is developing ahead of a cold front over the south and will continue to track northeast on Tuesday. This low pressure area will remain well offshore allowing the heaviest moisture to remain offshore. A second upper-level disturbance will rotate down from the Great Lakes and intensify on Tuesday. Initially the precipitation will arrive overnight Monday in the form as some light rain and snow showers. As the offshore low pressure intensifies on Tuesday, colder air will be drawn into the area allowing the rain to change over to snow during the morning hours. The strong upper-level disturbance will then approach us by the afternoon. This will cause an increase in precipitation in the from of light snow. The axis of heaviest snowfall looks to setup up across Eastern PA, Central NJ, and Southern NJ.
Overall I see the chance for a 1-3 inch snowfall across northern Delmarva and a coating to an inch for central locations. Amounts will really be determined by how quick the rain changes to snow and the location and intensity of the two storm systems. The heaviest precipitation looks to occur in the afternoon. Given the temperatures will be above 32 and the snow falling during the daytime, the highest accumulation should be on grassy areas. However if any heavier bursts develop, the snow will accumulate on the roads with reduced visibility. The snow will then taper off to flurries by the evening and temperatures will fall below freezing. Any standing water will likely freeze so icy conditions are expected Tuesday night and Wednesday morning.
Subscribe to:
Posts (Atom)