(MSC News)--Summer officially begins Sunday, and perfectly timed for the occasion is the arrival of extreme heat for the local area. 

A Heat Advisory is in effect from 10:00 in the morning until 10:00 Saturday night for the Kansas Counties of Atchison, Doniphan, Brown, Marshall, Nemaha, Jackson, Jefferson and Pottawatomie. Also included in the Heat Advisory is Buchanan County, Missouri. 

From the National Weather Service: 

* TEMPERATURES...SATURDAY AFTERNOON TEMPERATURES WILL RANGE THROUGH THE LOWER TO MID 90S...WITH HEAT INDEX VALUES RANGING AROUND 105 DEGREES.

* IMPACTS...THOSE EXPOSED TO THE DANGEROUS HEAT AND HIGH HUMIDITY OVER A PROLONGED PERIOD COULD RESULT IN AN INCREASED RISK TO HEAT RELATED ILLNESSES. CARS CAN REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES. NEVER LEAVE CHILDREN OR PETS UNATTENDED IN A VEHICLE...NOT EVEN FOR A MINUTE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE.

DRINK PLENTY OF WATER...AVOID CAFFEINATED...ALCOHOLIC OR HIGH SUGAR CONTENT BEVERAGES...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP ON NEIGHBORS...THE ELDERLY...AND PETS.

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...AND SEEK EMERGENCY ASSISTANCE. HEAT STROKE IS AN EMERGENCY - CALL 911 IMMEDIATELY.