BLOG: Nice Change

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Tim Williams

After reaching 98 degrees yesterday at BWI, capping off our first “heat wave” of the season, much drier and cooler air is filtering into the mid-Atlantic states early this morning. A cold front continues to push off the coast, and most barometric pressures are rising. There were some thunderstorms that moved through the region yesterday, and a watch was posted for much of the area through 10 p.m.

While most of the thunderstorms were relatively spotty, central and southern New England was hit very hard by some severe weather. Several places in Connecticut got hail around one inch in diameter, and a tornado which struck Springfield, Mass. area resulted in a few fatalities.

As temperatures continue to fall very early this morning, most will be in the 60s near or shortly after daybreak. There’ll be some recovery this afternoon with some bright sunshine, but it will also breezy. Northwest winds could gust as high as 30 mph, and most temperatures will be in the mid-80s.

Tonight will be clear and quite cool with a diminishing wind. Some distant suburbs will wind up in the upper 40s, while the bigger cities and coastal communities should be in the 50s early tomorrow morning. The sky tomorrow will feature plenty of sunshine, and most temperatures will be in the 80s again. A low pressure trough which is currently located over eastern Canada and northern New England is going to get “pinched off” over the Atlantic tomorrow, and will remain nearly stationary through tomorrow night.  This is going to obstruct somewhat warmer, more humid air to advance eastward.

There will probably be a series of showers and thunderstorms developing over the eastern Great Lakes tomorrow afternoon, but the prevailing winds aloft should cause them to dive southward into the central and southern Appalachians, and these won’t impact our weather late tomorrow or tomorrow night. The upcoming weekend will bring temperatures close to the seasonal averages (mostly in the middle 80s at this juncture), with Saturday starting off fairly sunny. As a front tries to push down from the north and west later on Saturday and especially Saturday night, there may be some sort of “broken line” of showers that could reach the coastal plain (because these will probably form over the Great Lakes and in upstate New York on Saturday afternoon first). Other than having the “mention” of a shower in Saturday night’s and Sunday morning’s forecasts, most of the upcoming weekend should be rain-free. Most temperatures on Sunday will either be in the lower or middle 80s.

Have a good day !!

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