Rock Island, Texas

... Heat advisory now in effect until 7 PM CDT Saturday...

The heat advisory has been extended until 7 PM CDT Saturday.

Late afternoon heat indices of 102 to 110 will be common through 7
PM. Overnight lows in the mid 70s to around 80 will blanket the
area offering only a slight respite from the heat. Plenty of
sunshine Saturday leading to highs again near the 100 mark will
combine with the humidity to bring widespread heat indices of 105
to 109 over the area on Saturday. Even more moisture could move
into the region on Sunday and this may warrant a further extension
of the advisory.

Precautionary/preparedness actions...

If you plan to be outside... avoid prolonged exposure or strenuous
physical activity. Your body can lose up to a gallon of water an
hour through perspiration. Drink plenty of fluids well in advance
of going outdoors and while outside to avoid dehydration.
Alcoholic and caffeinated beverages can increase the rate of water
loss in your body... increasing the risk of heat exhaustion or
stroke. Wear lightweight... light- colored... loose- fitting
clothing. Wear a hat to shield yourself from the sun... and use a
sunscreen to reduce possible sunburn.