The next at least 48 to 72 hours promises to be extremely busy in the meteorological community as a storm of historic proportions in terms of size and magnitude is getting ready to bear down on the East Coast, the nation’s most populated region of the country.
The main weather concern for us here in Chicago (particularly areas along the lake) will the impacts from Sandy which will transition into a post-tropical storm once it makes landfall and interacts with a non-tropical winter storm type system. Conditions near the lake are expected to deteriorate this afternoon through Tuesday as wind gust will increase from 30-35 mph this afternoon to 50-60 mph tonight and on Tuesday. This includes all northeast Illinois counties adjacent to the lake, northwest Indiana, and southwest Lower Michigan. Winds of this magnitude traveling the length of the lake also know as a full fetch will result in waves heights of 20 or more feet and an increase in lake levels along southern Lake Michigan of 2-3 feet. The two increases the risk for beach erosion and coastal flooding along the Illinois and Indiana shores of southern Lake Michigan tonight through Wednesday.
With the exception of northwest Indiana, no rainfall is in the forecast through Wednesday. The next best chance for rainfall comes on Sunday or Monday of next week as the atmospheric flow pattern slowly recovers from the remnants of Sandy.
Monday: Partly cloudy to mostly cloudy. Becoming windy this afternoon/evening and while remaining unseasonably chilly. Highs in the upper 40s to lower 50s. Winds north 10-20 mph with gust to 30 mph this afternoon strengthening 20-35 mph with gust 50-60 mph tonight.
Tuesday: Partly to mostly cloudy, unseasonably cool, and very windy. Occasional showers across northwest Indiana. Highs in the upper 40s to lower 50s. Winds north 20-35 mph with gust 50-60 mph.
Wednesday/Halloween: Partly cloudy, not as windy, and cool. Highs in the upper 40s. Winds northwest 10-20 mph.
Thursday: Mostly sunny and cool. Highs in the upper 40s to lower 50s. Winds northwest 5-15 mph.
Friday: Partly cloudy and slightly warmer. Highs in the mid 50s. Winds northwest 5-15 mph.
Saturday: Partly cloudy and milder. Highs near 60. Winds southeast 10-20 mph.
Sunday: Increasing clouds and breezy. Chance for showers. Highs near 60. Winds southeast 10-20 mph.
8-15 day temperature trend outlook
Monday Nov. 5: Highs in the 50s.
Tuesday Nov. 6: Highs in the 50s.
Wednesday Nov. 7: Highs in the 40s.
Thursday Nov. 8: Highs in the 40s/50s.
Friday Nov. 9: Highs in the 50s.
Saturday Nov. 10: Highs in the 40s.
Sunday Nov. 11: Highs in the 40s.
Monday Nov. 12: Highs in the 40s.
Tuesday Nov. 13: Highs in the 40s.
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