Stifling heat, especially in the Twin Cities
The National Weather Service has issued an Excessive Heat Warning for the Twin Cities. Concrete and pavement of the urban area capture and store heat. While a large region of southern Minnesota will experience maximum temperatures near 90 or higher today, the downtown area will not give up the warmth overnight. It will be a few degrees hotter on Tuesday. Be cautious.
Statement issued this morning by the Chanhassen NWS.
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
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439 AM CDT MON JUN 6 2011
...HOT AND HUMID CONDITIONS MOVING IN...
.HOT AND HUMID CONDITIONS WILL MOVE INTO THE AREA LATER THIS
AFTERNOON AND CONTINUE THROUGH TUESDAY NIGHT. HIGH TEMPERATURES
IN THE 90S AND THE HIGHER HUMIDITY WILL BRING THE HEAT INDEX TO
THE MID 90S TODAY AND NEAR 100 ON TUESDAY. OVERNIGHT LOW
TEMPERATURES WILL ONLY DROP TO THE LOWER AND MIDDLE 70S FOR
TONIGHT AND TUESDAY NIGHT. THE INNER DOWNTOWN AREAS OF THE METRO
WILL BE THE MOST SUSCEPTIBLE TO THE HOT AND HUMID CONDITIONS.
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.
Strong thunderstorms may fire up later today in the summer heat and humidity.
IMPORTANT: Since heat index values were devised for shady, light wind conditions, exposure to full sunshine can increase heat index values by up to 15°F. Strong winds, particularly with very hot, dry air, can be extremely hazardous.
The Heat Index Chart shaded zone above 105°F shows a level that may cause increasingly severe heat disorders with continued exposure and/or physical activity.
Read more about excessive heat here.
A cold front pushes the hot air out of here on Wednesday. By Thursday the highs will be only in the upper 60s in the Metro. Overnight low temperatures will be in the 30s in the Arrowhead region on Thursday morning.