Full Notification

SVRLOT The National Weather Service in Chicago has issued a

* Severe Thunderstorm Warning for... McHenry County in northeastern Illinois... Boone County in north central Illinois...

* Until 930 PM CDT.

* At 811 PM CDT, severe thunderstorms were located along a line extending from near Whitewater to Rockton to German Valley, moving southeast at 40 mph. HAZARD...70 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings.

* Severe thunderstorms will be near... Loves Park, Poplar Grove, and Candlewick Lake around 820 PM CDT. Capron and Timberlane around 825 PM CDT. Belvidere, Harvard, and Cherry Valley around 830 PM CDT. Hebron around 840 PM CDT. Marengo and Genoa City around 845 PM CDT. Woodstock, Twin Lakes, Spring Grove, Wonder Lake, and Richmond around 850 PM CDT. McHenry, Fox Lake, Johnsburg, Bull Valley, and McCullom Lake around 855 PM CDT. Crystal Lake, Lake in the Hills, Huntley, Lakemoor, Lakewood, Pistakee Highlands, and Prairie Grove around 900 PM CDT.

* AFFECTED AREAS: BOONE, IL ... MCHENRY, IL

Instructions:

Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. Prepare immediately for damaging winds and deadly cloud to ground lightning. Seek shelter inside a well-built structure. Stay away from windows. A Tornado Watch remains in effect until 1000 PM CDT for north central and northeastern Illinois.