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Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
336 PM CDT Fri Aug 18 2017

LMZ740>745-192045-
Winthrop Harbor to Wilmette Harbor-
Wilmette Harbor to Northerly Island-
Northerly Island to Calumet Harbor-Calumet Harbor to Gary-
Gary to Burns Harbor-Burns Harbor to Michigan City-
336 PM CDT Fri Aug 18 2017

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE ILLINOIS NEARSHORE
WATERS OF LAKE MICHIGAN AND THE INDIANA NEARSHORE WATERS OF LAKE
MICHIGAN.

.DAY ONE...Tonight.

  Limited Thunderstorm Risk.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Monday...
  Limited Thunderstorm Risk.
Tuesday...
  Elevated Thunderstorm Risk.
  Hazardous Conditions for Small Craft are likely.
Wednesday...
  Hazardous Conditions for Small Craft are likely.

&&

$$

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
336 PM CDT Fri Aug 18 2017

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-192045-
Lake Michigan from Michigan City IN to St. Joseph MI 5 NM
offshore to Mid Lake-
Lake Michigan from Seul Choix Point to Rock Island Passage 5 NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and north of a line from Charlevoix MI to South
Fox Island 5 NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5 NM offshore to
Mid Lake-
Lake Michigan from Point Betsie to Manistee MI 5 NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5 NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5 NM offshore to
Mid Lake-
Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5 NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5 NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5 NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid
Lake-
Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to
Mid Lake-
336 PM CDT Fri Aug 18 2017

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE OPEN WATERS OF LAKE
MICHIGAN.

.DAY ONE...Tonight.

A few thunderstorms are possible across southern Lake Michigan
this evening and overnight.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

There will be periodic chances for thunderstorms Sunday night
through Tuesday.

&&

$$

BMD

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Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
336 PM CDT Fri Aug 18 2017

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
192045-
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-
336 PM CDT Fri Aug 18 2017 /436 PM EDT Fri Aug 18 2017/

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

.DAY ONE...Tonight.

WEATHER HAZARDS EXPECTED:
  Limited Thunderstorm Risk.
  Limited Fog Risk.

DISCUSSION:

A few thunderstorms are possible this evening and overnight.
Severe weather is not expected.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Sunday...
  Limited Thunderstorm Risk.
Monday and Tuesday...
  Elevated Thunderstorm Risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.

GENERAL STORM MOTION OF THE DAY:

Moving east at 30 MPH.

&&

$$

Hazardous Weather Outlook
National Weather Service Northern Indiana
746 PM EDT Fri Aug 18 2017

INZ003>009-012>018-020-022>027-032>034-MIZ077>081-OHZ001-002-004-005-
015-016-024-025-200000-
La Porte-St. Joseph IN-Elkhart-Lagrange-Steuben-Noble-De Kalb-Starke-
Pulaski-Marshall-Fulton IN-Kosciusko-Whitley-Allen IN-White-Cass IN-
Miami-Wabash-Huntington-Wells-Adams-Grant-Blackford-Jay-Berrien-
Cass MI-St. Joseph MI-Branch-Hillsdale-Williams-Fulton OH-Defiance-
Henry-Paulding-Putnam-Van Wert-Allen OH-
746 PM EDT Fri Aug 18 2017 /646 PM CDT Fri Aug 18 2017/

This hazardous weather outlook is for portions of southwest
Michigan...northern Indiana and northwest Ohio.

.DAY ONE...Tonight

There is a slight chance of thunderstorms overnight. Severe weather
is not expected.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

There is a slight chance of a thunderstorm Saturday morning, mainly
east of Interstate 69.

There is a chance of thunderstorms Monday night through Tuesday
evening.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed tonight.

&&

Stay tuned to NOAA Weather Radio for further details or updates...or
check our web site at weather.gov/iwx

$$

Hazardous Weather Outlook
National Weather Service Northern Indiana
746 PM EDT Fri Aug 18 2017

LMZ043-046-200000-
New Buffalo MI to St Joseph MI-Michigan City IN to New Buffalo MI-
746 PM EDT Fri Aug 18 2017

This hazardous weather outlook is for portions of The Nearshore
Waters of Southeastern Lake Michigan.

.DAY ONE...Tonight

There is a slight chance of thunderstorms overnight. Severe
thunderstorms are not expected.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

There is a chance of thunderstorms Monday night through Tuesday
evening.

Hazardous conditions for small craft are possible again from Tuesday
evening through Wednesday afternoon.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed overnight.

&&

Stay tuned to NOAA Weather Radio for further details or updates...or
check our web site at weather.gov/iwx

$$

Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
414 PM CDT Fri Aug 18 2017

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-191000-
Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson-
Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson-
Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll-
Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson-
Warren-Hancock-McDonough-Scotland-Clark-
414 PM CDT Fri Aug 18 2017

This Hazardous Weather Outlook is for portions of north central
Illinois...northwest Illinois...west central Illinois...east
central Iowa...northeast Iowa...southeast Iowa and northeast
Missouri.

.DAY ONE...THIS AFTERNOON AND TONIGHT

Scattered thunderstorms are expected late this afternoon and
evening. Latest indications suggest the best chances for storms
are in the counties south of Interstate 80, and especially along
and south of a line generally from Fairfield Iowa, to Princeton
Illinois. A few storms could be severe with the main risks being
damaging winds and large hail.

Widespread coverage of showers and storms is still not
anticipated, so several locations will receive little to no rain.

Later tonight, patchy to areas of fog may develop after midnight
and toward dawn, with some chance of locally dense fog reducing
visibilties down to a quarter mile.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

Thunderstorms are possible across the outlook area from late
Sunday through Tuesday. It is still too soon to determine the
potential for severe weather, but heavy rainfall may be possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon and evening,
especially south of Interstate 80.

$$

12/RP Kinney

Hazardous Weather Outlook
National Weather Service Lincoln IL
351 PM CDT Fri Aug 18 2017

ILZ027>031-036>038-040>057-061-191100-
Cass-Champaign-Christian-Coles-De Witt-Douglas-Edgar-Fulton-Knox-
Logan-Macon-Marshall-Mason-McLean-Menard-Morgan-Moultrie-Peoria-
Piatt-Sangamon-Schuyler-Scott-Shelby-Stark-Tazewell-Vermilion-
Woodford-
351 PM CDT Fri Aug 18 2017

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

.DAY ONE...TONIGHT...

Isolated to scattered thunderstorms are possible tonight mainly
after sunset. Thunderstorms are not expected to be severe but may
contain brief heavy rain and gusty winds.

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

Thunderstorms are possible again starting Monday afternoon or
Monday evening, and going into early Tuesday evening. A period of
strong to severe thunderstorms is possible Tuesday afternoon.
Heat indices will peak from 95 to 100 degrees on Monday afternoon.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated through tonight.

$$

Hazardous Weather Outlook
National Weather Service Indianapolis IN
959 AM EDT Fri Aug 18 2017

INZ021-028>031-035>049-051>057-060>065-067>072-191400-
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-Boone-
Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-Putnam-
Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-Johnson-Shelby-
Rush-Sullivan-Greene-Monroe-Brown-Bartholomew-Decatur-Knox-Daviess-
Martin-Lawrence-Jackson-Jennings-
Including the cities of Lafayette, Frankfort, Kokomo,
Crawfordsville, Anderson, Muncie, Indianapolis, Terre Haute,
Shelbyville, Bloomington, Columbus, Vincennes, Bedford, and Seymour
959 AM EDT Fri Aug 18 2017

This hazardous weather outlook is for central Indiana.

.DAY ONE...Today and Tonight.

Outlook: Thunderstorm activity is possible late tonight. Severe
storms are not expected at this time.

Hazards: Cloud to ground lightning.

Timing: After 1100 PM EDT.

Discussion: High pressure will provide dry weather today. Thunderstorm
chances will return by late tonight as an upper level disturbance
moves across the lower Great Lakes and Ohio Valley.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Outlook: Thunderstorm activity is possible during the day on
Saturday, as well as Monday night through Tuesday night. At this
time, the potential exists for severe storms around Tuesday.

Discussion: An exiting upper level disturbance will provide a
lingering chance for showers and thunderstorms during the day
Saturday. Another frontal zone will result in additional chances for
showers and thunderstorms next week.

.SPOTTER INFORMATION STATEMENT...

Severe storm spotters are encouraged to monitor future weather
statements regarding the severe threat next week.

&&

More information, along with other weather, hydrological and climate
information can be found at http://weather.gov/ind

$$

HAZARDOUS WEATHER OUTLOOK
National Weather Service Grand Rapids MI
429 AM EDT Fri Aug 18 2017

MIZ037>040-043>046-050>052-056>059-064>067-071>074-190830-
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon-
Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton-
Ingham-Van Buren-Kalamazoo-Calhoun-Jackson-
429 AM EDT Fri Aug 18 2017

This hazardous weather outlook is for portions of southwest Lower
Michigan.

.DAY ONE...Today and Tonight

A few thunderstorms are possible late tonight south of a line from
Muskegon to Lansing. Severe weather is not expected.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Non severe storms are possible early Saturday south and east of
Grand Rapids. Thunderstorms are likely Monday night and Tuesday.
Some of these storms could be strong with locally heavy rainfall.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$

HAZARDOUS WEATHER OUTLOOK
National Weather Service Grand Rapids MI
429 AM EDT Fri Aug 18 2017

LMZ844>849-190830-
St Joseph to South Haven MI-South Haven to Holland MI-
Holland to Grand Haven MI-Grand Haven to Whitehall MI-
Whitehall to Pentwater MI-Pentwater to Manistee MI-
429 AM EDT Fri Aug 18 2017

This hazardous weather outlook is for portions of southwest Lower
Michigan.

.DAY ONE...Today and Tonight

Winds and waves will be hazardous to small craft and beach goers
through this evening. A few thunderstorms are possible late
tonight south of Whitehall. Severe weather is not expected.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Thunderstorms are likely Monday night and Tuesday. Some of these
storms could be strong. Hazardous winds and waves may develop
later Tuesday into early Wednesday behind a strong cold front.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$

Meade

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: June 2, 2009
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