…A PROLONGED HEAT EPISODE IS LIKELY THIS WEEKEND AND INTO THE
MIDDLE OF WEEK…

.A LARGE UPPER LEVEL RIDGE OF HIGH PRESSURE WILL BUILD INTO THE
UPPER MIDWEST BY THE WEEKEND AND REMAIN IN THE REGION INTO AT
LEAST THE MIDDLE OF NEXT WEEK. UNDER THE HIGH PRESSURE RIDGE…
HOT AND HUMID WEATHER IS FORECAST FOR SEVERAL DAYS.

WINNEBAGO-WORTH-HANCOCK-CERRO GORDO-WRIGHT-FRANKLIN-BUTLER-BREMER-
HAMILTON-HARDIN-GRUNDY-BLACK HAWK-STORY-MARSHALL-TAMA-
INCLUDING THE CITIES OF…FOREST CITY…NORTHWOOD…GARNER…
MASON CITY…CLARION…HAMPTON…ALLISON…WAVERLY…
WEBSTER CITY…ELDORA…GRUNDY CENTER…WATERLOO…AMES…
MARSHALLTOWN…TOLEDO

…EXCESSIVE HEAT WARNING IN EFFECT FROM NOON SUNDAY TO 7 PM CDT
WEDNESDAY…

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED AN
EXCESSIVE HEAT WARNING…WHICH IS IN EFFECT FROM NOON SUNDAY TO
7 PM CDT WEDNESDAY. THE EXCESSIVE HEAT WATCH IS NO LONGER IN
EFFECT.

* TEMPERATURE…AFTERNOON HIGH TEMPERATURES WILL REACH THE LOWER
90S ON SUNDAY AND IN THE MID 90S ON MONDAY THROUGH WEDNESDAY.
OVERNIGHT LOWS WILL ONLY FALL INTO THE MID 70S. SWELTERING
HUMIDITY THROUGHOUT THE PERIOD WILL PRODUCE HEAT INDEX
TEMPERATURES FROM 100 TO 115 DEGREES EACH AFTERNOON AND AROUND
80 AT NIGHT.

* IMPACTS…SEVERAL DAYS OF DANGEROUSLY HIGH HEAT AND HUMIDITY
WITH LITTLE RELIEF AT NIGHT CAN CAUSE SIGNIFICANT STRESS ON
INDIVIDUALS AND CREATE CONDITIONS FAVORABLE FOR HEAT RELATED
PROBLEMS.

IT IS POSSIBLE THAT THE EXCESSIVE HEAT WILL LAST BEYOND WEDNESDAY.
IF SO…THE EXCESSIVE HEAT WARNING WOULD BE EXTENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

TAKE EXTRA PRECAUTIONS…IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE…RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK…THE OCCUPATIONAL SAFETY
AND HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST
BREAKS IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE
OVERCOME BY HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION.
HEAT STROKE IS AN EMERGENCY…CALL 9 1 1.

AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF
DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS
SITUATION IN WHICH HEAT ILLNESSES ARE LIKELY. DRINK PLENTY OF
FLUIDS…STAY IN AN AIR-CONDITIONED ROOM…STAY OUT OF THE SUN…
AND CHECK UP ON RELATIVES AND NEIGHBORS.