Thunderstorm echos on radar moving through the area in a very northerly direction — Low pressure center just to the west over Iowa.

CHICAGOLAND FORECAST
Tonight: A 50 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 41. South southeast wind around 5 mph becoming calm.

Friday: A 20 percent chance of showers after noon. Cloudy, with a high near 54. Calm wind becoming north northeast between 10 and 15 mph.

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Storm chaser video shows power flash as tornado hit power lines, and large pieces of debris.

Two storm chasers captured a tornado on video that touched down in western Oklahoma Monday. Authorities say at least five homes and a barn were destroyed by the twister in Hammon, Oklahoma — about 100 miles west of Oklahoma City.

Oklahoma Department of Emergency Management spokeswoman Michelann Ooten reported there were no initial reports of any injuries with the storm, which occurred about 5:15 p.m. Monday.

View of Hammon, Oklahoma tornado on the horizon.

A total of 3.5 inches of new snow fell from Wednesday 7:30 p.m. through Thursday at 2:00 a.m. in Arlington Heights. Snow is light to medium — not good packing. Snow cover at 7:00 a.m. Thursday was 9.5 inches in Arlington Heights.

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Lake Effect Snow Advisory until noon Thursday. A lake effect snowfall hit Cook County with light snow starting about 7:30 p.m. Wednesday, and heavy snow falling at 8:00 p.m. At least 2.5 inches had fallen by 9:00 p.m. Up to 6 inches accumulation is possible in some neighborhoods by Thursday morning.

Injury crashes occurred at Buffalo Grove Road and Birchwood in Buffalo Grove and at 855 East Golf Road in Arlington Heights.

The Golf Road crash at about 8:30 p.m. involved three vehicles, including a silver Mercedes that left the roadway. Arlington Heights Fire Department sent two rescue-ambulances to the scene. Police blocked eastbound Golf Road at Goebbert Road. Traffic on Golf Road was a mess with a bad traffic backup. The eastbound lanes were re-opened at 9:40 p.m.

Numerous other minor crashes also occurred Wednesday night. A second accident also occurred at Golf and Arlington Heights Road. Crashes also occurred at Palatine and Kennicott, and at Arlington Heights Road and Olive.

A total of one-half of new snow fell from Tuesday 10:30 p.m. through Wednesday at 8:00 a.m. in Arlington Heights. Snow is continuing to fall. The new snow that fell overnight Tuesday to Wednesday was an expanded fluffy snowfall. Snow cover at 8:00 a.m. Wednesday was 6.5 inches in Arlington Heights after settling and melting from last snowfall.

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A total of 3 inches of new snow fell from Sunday 6:00 p.m. through Monday at 6:30 a.m. in Arlington Heights. The new snow that fell overnight Sunday to Monday was heavy, wet and slushy. Snow cover at 6:30 a.m. Monday was 7.0 inches in Arlington Heights. The snow is still falling at 6:30 a.m. Monday. The precipitation began as light right about 5:30 p.m. Sunday.

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