The report follows. August weather
Precipitation varied across the state, with rainfall amounts 1 to
2 inches above normal in western and much of central Illinois along
with totals more than 2 inches below normal in extreme eastern and
southeast Illinois.
Temperatures were three to four degrees above normal for August
across the entire state. A prolonged period of excessive heat and
humidity occurred in the middle of the month.
Flood outlook through September
No significant river flooding is expected.
Note: Individual severe thunderstorms and remnants of hurricanes
can produce copious amounts of rainfall and flash flooding, which
are not included in this outlook.
Illinois weather outlook for the rest of September
Temperatures: Above-normal temperatures are expected.
Precipitation: Normal precipitation is anticipated, except in
extreme southern Illinois, where below-normal rainfall is expected.
Illinois weather outlook for fall: September through November
Temperatures: Overall, above-normal temperatures are anticipated.
Precipitation: Normal conditions are expected in northern
Illinois, with a trend toward below-normal precipitation in the
southern half of Illinois.
National Weather Service notes
Summer summary for Illinois: Very warm and humid could best
describe the weather across the state for much of the summer of
2010.
Temperatures across the state averaged nearly three degrees above
normal. The number of days with highs above 90 degrees varied, but
overall it was about six to 10 days more than what we normally
experience in an Illinois summer.
The summer started out quite wet across the state, but by the end
of the summer, drier-than-normal conditions became established in
east-central, southeast and extreme southern Illinois. Many of the
storms with heavy rainfall affected parts of central, western and
northwest Illinois during the summer. Overall, total precipitation
for June through August averaged 10 to 12 inches above normal from
just west of Rockford to the Quad Cites to Springfield, Shelbyville
and Alton and points to the west. The driest areas were along the
Wabash and Ohio River valleys, where amounts averaged nearly 2
inches below normal for the summer.
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Springfield experienced not only its seventh-warmest summer on
record, but also its 10th-wettest. This is the first time since
weather records have been kept in Springfield (since 1879) that a
summer season was both one of the top 10 warmest and wettest. Thus,
the phrase "it was a warm and humid summer" is an understatement.
September is National Preparedness Month
Be prepared for all types of weather-related hazards, including
tornadoes, severe thunderstorms, floods, winter storms and extremes
of heat and cold.
-
Have a disaster
supply kit, which includes water, nonperishable food,
flashlights and spare batteries, a NOAA Weather Radio with spare
batteries, blankets, and other supplies.
-
Have a plan for
your home, your workplace and on the road. Have a designated
shelter to use during tornadoes and severe storms. Have an
escape route in case of flooding. Make sure everyone in your
family and at your workplace is familiar with the plan. Practice
the plan to make sure the plan works and to make sure everyone
is familiar with it.
-
Be informed.
Monitor the weather. Be aware of weather hazards in your area.
Check the forecast before you go out. Have a method to receive
watches and warnings for hazardous weather. A tone-alert NOAA
Weather Radio with a battery backup is the best way to receive
warnings direct from your local National Weather Service office.
More information is available at
http://www.ready.gov/ and
http://www.ready.illinois.gov/.
[Text from file received from
National Weather Service;
LDN]
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