As a deep low pressure system moves out of the southern plains into the Ohio
Valley, a broad area of rain on the north side of the storm will spread into
the southern Great Lakes. Counter-clockwise flow around the low will steer
easterly winds off 40-degree Lake Michigan waters into northeastern Illinois
and southeastern Wisconsin. South of the storm center, and east of the
associated cold front, the area of severe storms will shift east, impacting
Tennessee, Mississippi, Alabama and Georgia today.
WEST COAST WARM-UP
As a high pressure ridge moves over the West Coast, an off-shore flow is
developing over southern California which will bring upper 90s and
100-degree readings to the valleys over the next few days. Los Angeles is
forecasting highs in the low to mid 90s through Tuesday.
WEATHER TRANSITIONS MIDWEEK IN CHICAGO
Later Wednesday, a southerly flow should return to Illinois. By Thursday,
the strengthening flow will pull significantly warmer air into
northeastern Illinois with readings reaching the lower to middle 70s.
Computer models indicate this flow will continue into next weekend with
Chicago in store for it's first 80s of 2009 on Friday and Saturday.
