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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Lincoln IL
414 PM CDT Fri Jul 21 2017

ILZ027>029-036-037-041-042-221100-
Fulton-Knox-Logan-Mason-Peoria-Stark-Tazewell-
414 PM CDT Fri Jul 21 2017

...EXCESSIVE HEAT WARNING IN EFFECT UNTIL 8 PM CDT SATURDAY...

This Hazardous Weather Outlook is for portions of central
Illinois and west central Illinois.

.DAY ONE...TONIGHT...

Isolated thunderstorms will be possible tonight, with the main
threat for severe storms along and north of I-74. A few storms in
our area may produce strong wind gusts and torrential rainfall
tonight.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY...

Hot and humid conditions will prevail through Saturday. Afternoon
heat index values will peak around 110 degrees before slightly
cooler and less humid air moves in on Sunday.

The thunderstorms may become more numerous late Saturday
afternoon into Saturday night as a cold front sinks into the area.
Some of the storms could become severe on Saturday...with
damaging wind gusts, large hail, and torrential downpours
possible.

.SPOTTER INFORMATION STATEMENT...

Limited spotter activation may be needed later this afternoon.

$$



Excessive Heat Warning

URGENT - WEATHER MESSAGE
National Weather Service Lincoln IL
228 PM CDT Fri Jul 21 2017

...Hot and Humid Conditions Persist...

ILZ027>029-036-037-040>042-047>054-061-062-066>068-071>073-220900-
/O.CON.KILX.EH.W.0001.000000T0000Z-170723T0100Z/
Knox-Stark-Peoria-Fulton-Tazewell-Schuyler-Mason-Logan-Cass-
Menard-Scott-Morgan-Sangamon-Christian-Macon-Moultrie-Shelby-
Cumberland-Effingham-Jasper-Crawford-Clay-Richland-Lawrence-
Including the cities of Galesburg, Toulon, Peoria, Canton, Pekin,
Rushville, Havana, Lincoln, Beardstown, Petersburg, Winchester,
Jacksonville, Springfield, Taylorville, Decatur, Sullivan,
Shelbyville, Greenup, Effingham, Newton, Robinson, Flora, Olney,
and Lawrenceville
228 PM CDT Fri Jul 21 2017

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM CDT
SATURDAY...

* TEMPERATURE...High temperatures will reach the middle to upper
  90s through Saturday.

* HEAT INDEX...With dewpoints well into the 70s, afternoon heat
  index readings will peak from 105 to 110 degrees.

* IMPACTS...The effects of heat are cumulative, and worsen the
  longer a heat wave lasts. People without access to air
  conditioning, or those that are working or playing outdoors,
  are most likely to be impacted by the heat. Heat exhaustion or
  heat stroke are possible if work or play is too strenuous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

An Excessive Heat Warning means that a prolonged period of
dangerously hot temperatures will occur. The combination of the
heat and high humidity will create a DANGEROUS SITUATION in which
heat illnesses are likely. Drink plenty of fluids, stay in an air-
conditioned room, stay out of the sun, and check up on relatives
and neighbors.

Young children and pets should never be left unattended in
vehicles under any circumstances. This is especially true during
hot weather when car interiors can reach lethal temperatures in a
matter of minutes.

&&

$$



U.S. Dept. of Commerce
NOAA National Weather Service
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Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: May 16, 2007
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