Even though Sandy will remain a distant storm, its unusually large circulation will bring strong wind gusts and Lake Michigan flooding to part of Chicagoland.
North to northwest wind gusts of 40 to 50 mph will be common over the region. However, higher gusts to 60 mph are possible over the open water, along the lakeshore and between buildings.
The worst conditions will be in northwestern Indiana and southwestern Michigan, given the forecast wind direction and fetch off the lake. However, problems are likely along part of Chicago's Lakefront.
Lakeshore flooding of 2 to 4 feet is forecast with higher wave action on top of the surge. Wave action and strong winds can cause structural damage along the lake.
Wave heights will average 15 to 20 feet but can peak near 25 feet offshore. Conditions will be very dangerous for craft. Venturing near the lake can be very dangerous.
Even miles inland, wind gusts will be strong enough to down tree limbs, power lines and entire trees. Be alert for flying debris, as loose items will become airborne.
Avoid walking or parking under trees as limbs can come down with no notice.
The worst wind and wave conditions will span Monday night into Tuesday night. However, locally strong gusts in the neighborhood of 40 to 45 mph and overwash will continue into Wednesday.
Sandy is forecast to weaken slowly after moving inland from New Jersey over Pennsylvania and New York state, but it will take time for the large storm to unwind.
Following thunderstorms, cooler settles into the Midwest and Northeast through Midweek.
One person is dead, and another remains critically injured after a lightning strike in Southern California.
Relief is on the way for portions of the Plains that are in the grips of the ongoing drought.
People across the Northeast will be reaching for their umbrellas on Monday as rain and thunderstorms spread across the region.
Heavy rain will aim for eastern France, southern Germany and northern Italy early this week.
Severe storms brought damaging winds, hail, flooding downpours and possibly tornadoes across the Ohio Valley and mid-Atlantic Sunday and early Monday.
Small but intense storm, said to be the worst in about 50 years, hit southern Mississippi (where Camille hit in 1969). U.S. Coast Guard cutter lost with 39 aboard.
New England (1949)
Heat wave in New England; Greenville, RI hit 102 degrees.
Marquette, Il (1988)
99 degrees for a date record.