...EXTREME HEAT WARNING IN EFFECT FROM NOON FRIDAY TO MIDNIGHT CDT SATURDAY NIGHT... ...EXTREME HEAT WATCH NOW IN EFFECT FROM LATE SATURDAY NIGHT THROUGH SUNDAY EVENING... * WHAT...Dangerously hot conditions with heat index values up to 109 expected. The warmest day is expected to be Saturday. * WHERE...Portions of central, east central, and south central Nebraska. * WHEN...For the Extreme Heat Warning, from noon Friday to midnight CDT Saturday Night. For the Extreme Heat Watch, from late Saturday night through Sunday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...Overnight low temperatures will fall no lower than the upper 70s, providing limited relief from the heat. Steady south winds may provide some relief for those outdoors, but dehydration and heat-related illnesses remain possible even in the windy conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. &&