339 AM CDT WED APR 11 2012

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING…

* TIMING…TEMPERATURES ARE ALREADY BELOW FREEZING OR WILL FALL BELOW FREEZING BETWEEN 400 AM AND 700 AM. READINGS SHOULD THEN REMAIN AT OR BELOW FREEZING UNTIL SHORTLY AFTER SUNRISE.

* TEMPERATURE…EARLY MORNING LOWS WILL DIP INTO THE UPPER TEENS AND 20S NORTH AND EAST…AND IN THE UPPER 20S TO LOWER 30S FROM DES MOINES SOUTH AND WEST.

* IMPACTS…A HARD FREEZE IS LIKELY IN MOST LOCATIONS. YOUNG TENDER VEGETATION WILL BE KILLED UNLESS PROTECTED IN THESE AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. ALTHOUGH NOT AS COOL AS EARLY THIS MORNING…ADDITIONAL SUB-FREEZING TEMPERATURES MAY ALSO OCCUR INTO EARLY THURSDAY MORNING OVER NORTHERN AND EASTERN IOWA.