Heat Advisory just issued for large chunk of SE Michigan

NWS Detroit has issued a heat advisory for all of the forecast area except for the northern Thumb (Huron, Sanilac, Tuscola counties).

Text of the advisory is as follows:

...HEAT ADVISORY IN EFFECT FROM 1 PM THURSDAY TO 10 PM EDT
FRIDAY...

THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A HEAT
ADVISORY...WHICH IS IN EFFECT FROM 1 PM THURSDAY TO 10 PM EDT
FRIDAY.

HAZARDOUS WEATHER...

 * TEMPERATURES IN THE 90S AND HIGH HUMIDITY WILL CAUSE HEAT
   INDICES TO APPROACH 100 DEGREES ON THURSDAY AND EXCEED 100
   DEGREES ON FRIDAY.

 * VERY HIGH HUMIDITY WILL LIMIT THE POTENTIAL FOR OVERNIGHT
   RELIEF.

IMPACTS...

 * THOSE SPENDING TIME OUTDOORS WILL BE SUCEPTIBLE TO DEHYDRATION
   AND HEAT-RELATED ILLNESS.

 * ELDERLY PERSONS, OUTDOOR PETS, AND THOSE WITHOUT AIR
   CONDITIONING WILL ALSO BE SUBJECT TO HEAT STRESS.


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 AND SYMPTOMS 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.