EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-HARDIN-GRUNDY-BLACK HAWK-TAMA-INCLUDING THE CITIES OF…ESTHERVILLE…ALGONA…FOREST CITY…NORTHWOOD…EMMETSBURG…GARNER…MASON CITY…HUMBOLDT…CLARION…HAMPTON…ALLISON…WAVERLY…ELDORA…GRUNDY CENTER…WATERLOO…TOLEDO
1138 AM CDT TUE JUN 21 2011

…CONDITIONS ARE FAVORABLE FOR FUNNEL CLOUDS OR BRIEF TORNADOES…

CURRENT ATMOSPHERIC CONDITIONS SUPPORT THE DEVELOPMENT OF FUNNEL CLOUDS. USUALLY…THESE FUNNEL CLOUDS CAN FORM FROM SHOWERS AND WEAK THUNDERSTORMS. THESE FUNNELS ARE NORMALLY BRIEF AND DROP ONLY A FEW HUNDRED FEET FROM THE CLOUD BASE. HOWEVER…IF ONE IS SPOTTED…PLEASE REPORT IT IMMEDIATELY TO LOCAL LAW ENFORCEMENT FOR RELAY TO THE NATIONAL WEATHER SERVICE. IF A TORNADO WARNING WOULD BECOME NECESSARY…TAKE APPROPRIATE ACTION.