The National Weather Service has issued a Frost Advisory in effect from May 17, 12:00 AM EDT until May 17, 08:00 AM EDT:
URGENT – WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTHERN INDIANA
915 PM EDT FRI MAY 16 2014…FROST ADVISORY…
AN UNSEASONABLY COLD AIRMASS OVER THE REGION…COMBINED WITH CLEARING SKIES AND LIGHT WINDS WILL ALLOW TEMPERATURES TO FALL TO BETWEEN 30 TO 35 DEGREES RANGE. AT THESE TEMPERATURES FROST IS LIKELY TO FORM BY EARLY SATURDAY MORNING.
[…] …FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT /7 AM CDT/SATURDAY…
HAZARDOUS WEATHER…
* TEMPERATURES ARE EXPECTED TO FALL TO BETWEEN 30 AND 35 DEGREES BEFORE SUNRISE SATURDAY. AREAS OF FROST ARE EXPECTED OVER SOUTHERN LOWER MICHIGAN AND NORTHERN INDIANA.
IMPACTS…
* SENSITIVE PLANTS AND TREES MAY BE DAMAGED IF NOT PROTECTED.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
A FROST ADVISORY MEANS THAT FROST IS EXPECTED. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. POTTED PLANTS NORMALLY LEFT OUTDOORS SHOULD BE COVERED OR MOVED INDOORS.