 The forecast indicates that strong upper-level high pressure will
build eastward into Illinois. Increasing amounts of heat and
moisture will result in heat index values over 105 over much of
central Illinois west of Illinois 55.A heat advisory is in effect
from noon to 8 p.m. today for the counties of Knox, Stark, Peoria,
Marshall, Woodford, Fulton, Tazewell, McLean, Schuyler, Mason,
Logan, Cass, Menard, Scott, Morgan and Sangamon, including the
cities of Galesburg, Peoria, Bloomington, Normal, Havana, Lincoln,
Jacksonville and Springfield.
Timing: High levels of heat and humidity are likely across
the area from midday until sunset.
Temperature: While air temperatures reach the mid-90s,
dewpoints well into the 70s will result in heat index values of 105
to 110 degrees during the afternoon hours.
Impacts: Heat stress will be possible, especially if you
spend a significant amount of time outdoors or are involved in any
strenuous outdoor activity.
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 Precautionary and preparedness actions:
A heat advisory means that a period of hot temperatures is
expected. 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
heatstroke. Wear lightweight and loose-fitting clothing when
possible and drink plenty of water. Do not leave children or pets in
unattended vehicles.
To reduce risk during outdoor activity, take frequent rest breaks
in shaded or air-conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heatstroke is an
emergency -- call 911.
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Geographical depiction:
http://www.crh.noaa.gov/wxstory.php?site=ilx
[Text from National Weather Service,
Lincoln office] |
