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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
405 AM CDT Mon Jun 18 2018

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
191100-
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-DeKalb-Kane-DuPage-Cook-
La Salle-Kendall-Grundy-Will-Kankakee-Livingston-Iroquois-Ford-
Lake IN-Porter-Newton-Jasper-Benton-
405 AM CDT Mon Jun 18 2018 /505 AM EDT Mon Jun 18 2018/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Early this Morning through Tonight.

Weather hazards expected...

  Elevated Thunderstorm Risk...with an associated:
     Limited damaging wind risk...up to 60 mph.
  Limited Flooding Risk.
  Elevated Excessive Heat Risk.

DISCUSSION...

Temperatures will warm to the low to even some mid 90s today. This
combined with dewpoints in the 70s will result in dangerous heat
indices of 100 to 105 area wide being that this is the third consecutive
day with high heat index values and lower recovery at night.

Thunderstorms are expected later this afternoon and evening. An
isolated strong to severe thunderstorm is possible, with heavy
rainfall also expected. Heavy rain from thunderstorms is also
possible Monday night, mainly north of Interstate 80, that may lead to
flash flooding.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Tuesday...
  Limited Severe Thunderstorm Risk.
  Limited Flooding Risk.
  Limited Excessive Heat Risk.
Wednesday through Sunday...
  Occasional periods of thunderstorms possible.

DISCUSSION:

Heavy rain from thunderstorms is also possible again Tuesday, mainly along
and south of I-80. This may lead to flash flooding. A few stronger storms are
also possible during the afternoon. Warm and muggy conditions
will linger into Tuesday mainly south of I-80.

.SPOTTER INFORMATION STATEMENT...

  Spotters may be needed this evening.

GENERAL STORM MOTION OF THE DAY:

  Moving toward the east at 20 to 30 mph.

$$



Excessive Heat Warning

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
331 AM CDT Mon Jun 18 2018

...Third Consecutive Day of High Heat and Humidity...

ILZ014-181645-
/O.CON.KLOT.EH.W.0001.000000T0000Z-180619T0000Z/
Cook-
Including the city of Chicago
331 AM CDT Mon Jun 18 2018

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

* TEMPERATURES...Highs in the low to mid 90s.

* HEAT INDICES...Peak heat indices of 100 to 105.

* IMPACTS...The extended duration of heat, combined with nearly
  full sunshine, and oppressive warmth at night will lead to
  hazardous conditions, particularly for the elderly and those
  with pre-existing health conditions. Residents of the city of
  Chicago can call 3...1...1...to request well being checks for
  elderly friends or family members, or for information on
  finding the nearest cooling center.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

An Excessive Heat Warning means that a prolonged period of
dangerously hot temperatures will occur. The combination of hot
temperatures and high humidity will combine to 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
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&

$$



Air Quality Alert

ILZ005-006-012>014-020>022-181700-
McHenry-Lake IL-Kane-DuPage-Cook-Kendall-Grundy-Will-
Including the cities of Woodstock, Waukegan, Aurora, Elgin, Wheaton,
Chicago, Oswego, Morris, and Joliet
1152 AM CDT Sat Jun 16 2018

...AIR QUALITY ALERT IN EFFECT SUNDAY...

The Illinois Environmental Protection Agency has determined that an
air pollution action day will be declared for the greater Chicago
Metropolitan Area and is in effect from midnight tonight to midnight
CDT Sunday night.

An air pollution action day is declared when weather conditions are
such that widespread ozone and or particulate levels are expected to
be at or above the unhealthy for sensitive groups category of the
air quality index.

Active children and adults especially people with pulmonary or
respiratory disease such as asthma should limit prolonged outdoor
activity.

Area residents are urged to reduce pollution levels. Air quality
forecasts and tips on how you can reduce your emissions can be found
at www.airnow.gov.

media contact...217 558 1536.

$$




U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: May 16, 2007
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