Thursday, April 10, 2008

Sun and Warmth Return

The rigorous storm system that Kira blogged about in the post below will help surge warm air into Delmarva for the next 24-48 hours. Winds have switched direction today out of the South and West helping to dry out the lower level of the atmosphere a bit. This wind flow broke up the clouds and allowed for the sun to return increasing temperatures a good 20 degrees. Highs made it into the 70s away from the water but the Atlantic coastal areas still had fog through the day holding highs only in the 50s.

More dense fog is expected overnight with visibilities under a 1/4 mile possible. A dense fog advisory is in effect for the Southern half of Delmarva from 1 AM until 9 AM Friday. Just like today, after the morning fog dissipates, expect some sunshine to break out with highs climbing into the low 70s. Strong Southerly winds will kick in the afternoon and air temperatures around 5,000 ft above the surface support highs in the mid 70's. If enough sunshine breaks out, some areas could approach the upper 70's. The warmth will continue into the start of the weekend but a cold front will slide through on Saturday cooling temperatures off for Sunday. A large slow moving trough in the jet stream will be situated over the mid-Atlantic Monday through Wednesday brining cooler temperatures and clouds. An instability shower is possible especially on Monday as the trough rotates through.

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