400 AM CDT MON JUL 21 2014 …A HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 7 PM CDT TUESDAY FOR ALL BUT THE EXTREME PARTS OF WESTERN/SOUTHWEST IOWA, WHERE THE ADVISORY IS IN EFFECT FROM 1-PM TO 7-PM MONDAY…

HOT AND HUMID CONDITIONS ARE EXPECTED THIS AFTERNOON AND EVENING…WITH ONLY MODERATE RELIEF TONIGHT. THE MOST PRONOUNCED HEAT AND HUMIDITY WILL BE EXPERIENCED IN MOST AREAS…ESPECIALLY SOUTH OF HIGHWAY 30…ON TUESDAY AFTERNOON AND EVENING.

TEMPERATURES TODAY WILL PEAK IN THE UPPER 80S TO LOWER 90S…WITH HEAT INDEX VALUES REACHING THE LOWER 100S IN MANY AREAS TO AROUND 105 OVER THE WEST THIRD OF IOWA. ON TUESDAY TEMPERATURES WILL PEAK IN THE UPPER 80S NORTH TO MID 90S CENTRAL AND SOUTH…WITH HEAT INDEX VALUES APPROACHING 100 OVER THE NORTH…AROUND 105 OVER THE CENTRAL THIRD…AND APPROACHING 110 OVER THE SOUTH THIRD OF IOWA.

PRECAUTIONARY/PREPAREDNESS ACTIONS… A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS…STAY IN AN AIR-CONDITIONED ROOM…STAY OUT OF THE SUN…AND CHECK UP ON RELATIVES AND NEIGHBORS.

TAKE EXTRA PRECAUTIONS…IF YOU WORK OR SPEND TIME OUTSIDE. WHEN POSSIBLE…RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR EVENING. KNOW THE SIGNS 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.