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Hazardous Weather Outlook

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
406 PM CDT SAT JUL 23 2016

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
242115-
WINNEBAGO-BOONE-MCHENRY-LAKE ILLINOIS-OGLE-LEE-DE KALB-KANE-
DUPAGE-COOK-LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-
IROQUOIS-FORD-LAKE INDIANA-PORTER-NEWTON-JASPER-BENTON-
406 PM CDT SAT JUL 23 2016 /506 PM EDT SAT JUL 23 2016/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TONIGHT.

WEATHER HAZARDS EXPECTED:
  SIGNIFICANT THUNDERSTORM RISK...WITH AN ASSOCIATED:
      LIMITED HAIL RISK...UP TO HALF DOLLAR SIZE.
      ELEVATED THUNDERSTORM WIND DAMAGE RISK...UP TO 70 MPH.
  LIMITED FLOODING RISK.
  SIGNIFICANT EXCESSIVE HEAT RISK.

DISCUSSION:

ISOLATED TO SCATTERED THUNDERSTORMS WILL BE POSSIBLE LATE THIS AFTERNOON
MAINLY ALONG AND NORTH OF INTERSTATE 80. MOST STORMS WILL BE SLOW
MOVING AND THUS CAPABLE OF HEAVY RAINFALL AND LOCALIZED FLOODING.
IN ADDITION...THERE WILL BE A BRIEF GUSTY WIND THREAT WITH ANY STORMS.

A MORE ORGANIZED AREA OF THUNDERSTORMS WILL MOVE IN FROM EASTERN IOWA
THIS EVENING AND IMPACT AREAS ALONG AND NORTH OF INTERSTATE 80. DAMAGING
WINDS...TORRENTIAL DOWNPOURS AND LIGHTNING WILL BE THE MAIN THREATS. A
MINIMAL TORNADO THREAT EXISTS NEAR THE WISCONSIN BORDER.

ADDITIONAL THUNDERSTORMS ARE POSSIBLE OVERNIGHT.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

SUNDAY...
  LIMITED FLOODING RISK.
  LIMITED SEVERE THUNDERSTORM RISK.
  SIGNIFICANT EXCESSIVE HEAT RISK.
MONDAY...
  LIMITED THUNDERSTORM RISK.
WEDNESDAY THROUGH FRIDAY...
  LIMITED THUNDERSTORM RISK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER REPORTS WILL LIKELY BE NEEDED THROUGH TONIGHT.

GENERAL STORM MOTION OF THE DAY:

MOVING TOWARD THE EAST AT 10 MPH THIS AFTERNOON AND THEN TO THE SOUTHEAST
AT 20 TO 30 MPH THIS EVENING AND TONIGHT.

&&

$$



Special Weather Statement

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
544 PM CDT SAT JUL 23 2016

ILZ006-014-232330-
LAKE IL-COOK IL-
544 PM CDT SAT JUL 23 2016

...SPECIAL WEATHER STATEMENT FOR NORTHEASTERN COOK AND EASTERN LAKE
COUNTIES UNTIL 630 PM CDT...

AT 544 PM CDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR NORTH CHICAGO TO
VERNON HILLS...AND MOVING SOUTH AT 30 MPH.

NICKEL SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH
THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
CHICAGO...             WAUKEGAN...            EVANSTON...
SKOKIE...              DES PLAINES...         MOUNT PROSPECT...
GLENVIEW...            BUFFALO GROVE...       WHEELING...
PARK RIDGE...          NORTHBROOK...          NORTH CHICAGO...
GURNEE...              MUNDELEIN...           HIGHLAND PARK...
WILMETTE...            VERNON HILLS...        ZION...
MORTON GROVE...        GRAYSLAKE...

INCLUDING THE FOLLOWING INTERSTATES... I-94 BETWEEN MILE MARKERS 1
AND 46. I-294 BETWEEN MILE MARKERS 1 AND 46.

THIS INCLUDES...  LOYOLA UNIVERSITY...OAKTON COMMUNITY COLLEGE...TRITON
COLLEGE...COLLEGE OF LAKE COUNTY...GREAT LAKES NAVAL TRAINING CENTER...
IL BEACH STATE PARK...LAKE COUNTY FIELDERS BASEBALL...LAKE FOREST
COLLEGE...NORTHEASTERN ILLINOIS UNIVERSITY...NORTHWESTERN UNIVERSITY...
RAVINIA MUSIC FESTIVAL...SIX FLAGS GREAT AMERICA...AND WRIGLEY FIELD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FOR
NORTHEASTERN ILLINOIS.

LAT...LON 4249 8780 4238 8781 4236 8783 4233 8783
      4231 8782 4230 8783 4227 8783 4219 8779
      4211 8773 4206 8767 4199 8765 4196 8763
      4195 8764 4191 8787 4249 8806
TIME...MOT...LOC 2244Z 340DEG 25KT 4228 8776 4224 8794

$$

RC




Severe Thunderstorm Watch

SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 412
NWS STORM PREDICTION CENTER NORMAN OK
320 PM CDT SAT JUL 23 2016

SEVERE THUNDERSTORM WATCH 412 IS IN EFFECT UNTIL 1000 PM CDT
FOR THE FOLLOWING LOCATIONS

ILC007-011-015-031-037-043-063-073-085-089-093-097-099-103-111-
141-155-161-177-195-197-201-240300-
/O.NEW.KWNS.SV.A.0412.160723T2020Z-160724T0300Z/

IL
.    ILLINOIS COUNTIES INCLUDED ARE

BOONE                BUREAU              CARROLL
COOK                 DE KALB             DUPAGE
GRUNDY               HENRY               JO DAVIESS
KANE                 KENDALL             LAKE
LA SALLE             LEE                 MCHENRY
OGLE                 PUTNAM              ROCK ISLAND
STEPHENSON           WHITESIDE           WILL
WINNEBAGO
$$




Air Quality Alert

ILZ005-006-012>014-020>022-241015-
MCHENRY-LAKE IL-KANE-DUPAGE-COOK-KENDALL-GRUNDY-WILL-
INCLUDING THE CITIES OF...WOODSTOCK...WAUKEGAN...AURORA...ELGIN...
WHEATON...CHICAGO...OSWEGO...MORRIS...JOLIET
512 AM CDT SAT JUL 23 2016

...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...

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 UNTIL MIDNIGHT CDT TONIGHT.

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.

PARTICIPANTS IN THE...PARTNERS FOR CLEAN AIR PROGRAM...ARE REQUESTED
TO INITIATE THEIR ACTIVITIES. RESIDENTS ARE ALSO URGED TO REDUCE
POLLUTION LEVELS. AQI FORECAST AND TIPS ON HOW YOU CAN REDUCED YOUR
EMISSIONS CAN BE FOUND AT WWW.CLEANTHEAIR.ORG.

INFORMATION AND AQI LEVELS CAN ALSO BE FOUND AT WWW.EPA.STATE.IL.US
AND AT WWW.AIRNOW.GOV. MEDIA CONTACT...217 299 6057.

$$



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Silver Spring, MD 20910
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Page last modified: May 16, 2007
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