Freeze Watch from the National Weather Service:
URGENT – WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORTHERN INDIANA
332 PM EDT FRI APR 16 2010…SEVERAL COLD NIGHTS IN STORE INTO EARLY NEXT WEEK.
.LOW PRESSURE WILL SLOWLY MOVE EAST OVER THE WEEKEND. A COLD NORTHWEST FLOW WILL SETUP WITH SKIES POSSIBLY BECOMING CLEAR AND WINDS BECOMING CALM. THIS MAY SET THE STAGE FOR TEMPERATURES OVER THE NEXT COUPLE OF NIGHTS TO FALL INTO THE LOW TO MIDDLE 30S AND POSSIBLY BELOW FREEZING. THE BEST CHANCE OF THIS LOOKS TO BE SATURDAY NIGHT INTO SUNDAY MORNING.
…FREEZE WATCH IN EFFECT FROM LATE SATURDAY NIGHT THROUGH SUNDAY
MORNING…THE NATIONAL WEATHER SERVICE IN NORTHERN INDIANA HAS ISSUED A FREEZE WATCH…WHICH IS IN EFFECT FROM LATE SATURDAY NIGHT THROUGH SUNDAY MORNING.
* IMPACTS…A PERIOD OF NEAR OR SUB-FREEZING TEMPERATURES IS POSSIBLE SATURDAY NIGHT INTO SUNDAY MORNING. THE COLD TEMPERATURES COMBINED WITH AN EARLY START TO THE GROWING SEASON MAY RESULT IN DAMAGE TO SENSITIVE VEGETATION.
* TIMING…WHILE TEMPERATURES OVER THE NEXT SEVERAL NIGHTS WILL BE IN THE 30S…THE BEST CHANCE FOR NEAR OR SUB-FREEZING TEMPERATURES WILL BE BETWEEN 3 AM AND 10 AM EDT SUNDAY.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE. THESE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION.