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Boston Weather: 50.0°F | Light Rain and Windy

Weather: Calm Before the Storm

By Nikki PrivÉ
STAFF METEOROLOGIST -- A cold front is expected to sweep across the eastern United States today, bringing clouds and showers to the area. Skies will clear overnight as high pressure settles over the region on Wednesday, with mild temperatures and plenty of sunshine. Enjoy the pleasant weather tomorrow, as the end of the week will be unsettled by the approach of Hurricane Isabel.

Although Isabel has weakened somewhat in the past 48 hours, the storm is still extremely powerful, with sustained winds near 125 mph as of Monday afternoon. The hurricane is expected to accelerate to the northwest. Because Isabel is expected to approach the coast at a sharp angle, a small deviation from the forecast track could greatly shift the location of landfall, so that much of the coastline from South Carolina to Rhode Island is threatened. Although the ultimate location of landfall is uncertain, there is good agreement among models about the path of the storm. The majority of forecasts predict that Isabel will be steered by a large trough over the east coast to make landfall over the mid-Atlantic states, tracking over the outer banks of North Carolina on Thursday, then travelling over eastern Virginia and Maryland up into Pennsylvania. Although hurricanes weaken quickly after making landfall, they can still cause considerable damage inland with flooding, strong winds, and sometimes tornados. Local effects in the Boston area will include squally weather on Friday, with gusty winds and rain showers.

Extended Forecast

Today: Rain likely, highs in the mid 70s F (24°C).

Tonight: Gradual clearing. Lows around 60°F (16°C).

Wednesday: Mostly sunny and mild, with highs in the lower 70s F (22°C). Lows in the upper 50s F (14°C).

Thursday: Cloudy, becoming breezy late. Highs around 72°F (22°C).

Friday: Windy, cloudy, possible showers. Highs in the low 70s F (22°C).