Hard freeze expected in Wisconsin

Will kill any early season vegetation that is unprotected.

NATIONAL WEATHER SERVICE LA CROSSE WI

A RIDGE OF HIGH PRESSURE WILL USHER IN A COLDER AND DRIER AIR
MASS INTO THE GREAT LAKES REGION THROUGH THE END OF THE WORK WEEK.

TEMPERATURES ARE EXPECTED TO FALL WELL BELOW FREEZING OVER NORTH-CENTRAL…CENTRAL…AND FAR NORTHEAST WISCONSIN TONIGHT AND THURSDAY NIGHT. THIS WILL RESULT IN SEVERAL NIGHTS OF A HARD
FREEZE…WHICH WILL KILL ANY EARLY SEASON VEGETATION THAT IS
UNPROTECTED.

INCLUDING THE CITIES OF…EAGLE RIVER…RHINELANDER…CRANDON…
TOMAHAWK…ANTIGO…KESHENA…WAUSAU…WISCONSIN RAPIDS…
STEVENS POINT…WAUTOMA

TEMPERATURES WILL FALL INTO THE MIDDLE 20S TONIGHT AND LIKELY
FALL INTO THE LOWER TO MIDDLE 20S THURSDAY NIGHT.

EARLY SEASON COLD-SENSITIVE VEGETATION WILL BE EXTREMELY
VULNERABLE TO SEVERE DAMAGE DUE TO TEMPERATURES WELL BELOW
FREEZING.
http://www.nws.noaa.gov/view/states.php?state=WI&map=on

Thanks to Kenneth Lund for this link