Excessive Heat Watch

The Indianapolis NWS has issued an Excessive Heat Watch for Tuesday through Friday this week.

Excessive Heat Watch

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE INDIANAPOLIS IN
421 AM EDT SUN JUL 17 2011

...OPPRESSIVE HEAT AND HUMIDITY EXPECTED DURING THE UPCOMING
WEEK...

.A LARGE AREA OF HIGH PRESSURE ALOFT WILL INTENSIFY OVER THE
MIDDLE OF THE NATION...AND VERY SLOWLY DRIFT EASTWARD OUT OF THE
PLAINS. HEAT AND HUMIDITY WILL BUILD EASTWARD...AND WILL ENGULF
MUCH OF THE MISSISSIPPI VALLEY. CENTRAL INDIANA WILL BEGIN TO
FEEL THE HEAT INCREASING TODAY AND MONDAY...WITH OPPRESSIVE HEAT
AND HUMIDITY EXPECTED FROM TUESDAY THROUGH AT LEAST FRIDAY.

INZ021-028>031-035>049-051>057-060>065-067>072-171630-
/O.CON.KIND.EH.A.0001.110719T1800Z-110723T0000Z/
CARROLL-WARREN-TIPPECANOE-CLINTON-HOWARD-FOUNTAIN-MONTGOMERY-
BOONE-TIPTON-HAMILTON-MADISON-DELAWARE-RANDOLPH-VERMILLION-PARKE-
PUTNAM-HENDRICKS-MARION-HANCOCK-HENRY-VIGO-CLAY-OWEN-MORGAN-
JOHNSON-SHELBY-RUSH-SULLIVAN-GREENE-MONROE-BROWN-BARTHOLOMEW-
DECATUR-KNOX-DAVIESS-MARTIN-LAWRENCE-JACKSON-JENNINGS-
INCLUDING THE CITIES OF...LAFAYETTE...FRANKFORT...KOKOMO...
CRAWFORDSVILLE...ANDERSON...MUNCIE...INDIANAPOLIS...TERRE HAUTE...
SHELBYVILLE...BLOOMINGTON...COLUMBUS...VINCENNES...BEDFORD...
SEYMOUR
421 AM EDT SUN JUL 17 2011

...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON
THROUGH FRIDAY EVENING...

* THE COMBINATION OF TEMPERATURES IN THE 90S...AND DEWPOINTS IN
  THE MID TO UPPER 70S...WILL PRODUCE DANGEROUS HEAT INDEX
  VALUES OF 105 TO 110 DEGREES FROM LATE MORNING INTO EARLY
  EVENING EACH DAY.

* THE IMPACTS OF HEAT STRESS ARE CUMULATIVE...AND INCREASE EACH
  DAY THE HEAT LASTS. ANYONE SPENDING SIGNIFICANT AMOUNTS OF
  TIME OUTDOORS...OR INVOLVED IN STRENUOUS ACTIVITY...WILL BE
  SUSCEPTIBLE TO SERIOUS AND POTENTIALLY LIFE THREATENING HEAT
  ILLNESSES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT WATCH MEANS THAT A PROLONGED PERIOD OF HOT
TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND
HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS 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.