weather.gov     
National Weather Service

Watches, Warnings & Advisories
NWS Homepage

Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
341 AM CDT Sun May 19 2019

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-200845-
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
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 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
341 AM CDT Sun May 19 2019

This Hazardous Weather Outlook is for the open waters of Lake Michigan.

.DAY ONE...Today and Tonight

Areas of dense fog may develop this morning but diminish during
the afternoon as breezy west to southwest winds develop. Wind
gusts up to 30 knots are possible over far southern and southwest
portions of Lake Michigan.

There is a slight risk for severe thunderstorms this afternoon
over the south half of the lake with the passage of a cold front.


.DAYS TWO THROUGH SEVEN...Monday through Saturday

Chances for thunderstorms return Tuesday night to the southern
portion of the lake.

$$


www.weather.gov/mkx

Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
341 AM CDT Sun May 19 2019

WIZ046-047-051-052-056>060-062>072-200845-
Marquette-Green Lake-Fond Du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
341 AM CDT Sun May 19 2019

This Hazardous Weather Outlook is for portions of east central
Wisconsin, south central Wisconsin and southeast Wisconsin.

.DAY ONE...Today and Tonight

There is a Marginal Risk for severe thunderstorms over southeast
Wisconsin from late this morning into the afternoon with the
passage of a cold front. Damaging winds and large hail is the
threat.

Westerly winds will gust to 30 to 35 mph after the passage of the
cold front.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

There are chances for thunderstorms Tuesday and Tuesday night.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed today.

$$

Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
341 AM CDT Sun May 19 2019

LMZ643>646-200845-
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
341 AM CDT Sun May 19 2019

This Hazardous Weather Outlook is for the nearshore waters from
Sheboygan Wisconsin to Winthrop Harbor Illinois.

.DAY ONE...Today and Tonight

A Small Craft Advisory is in effect this afternoon and evening for
breezy southwest winds become due westerly. Wind gusts up to 30
knots are expected. Waves will build to 2 to 5 feet.

Areas of dense fog may once again develop this morning but
diminish during the early afternoon.

There is a Marginal Risk for severe thunderstorms this afternoon
with the passage of a cold front. Damaging winds and large hail is
the threat.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

A Small Craft Advisory may be needed Tuesday night and Wednesday
for breezy east to southeast winds and high waves.

Chances for thunderstorms return for Tuesday night.

$$

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1212 PM CDT Sun May 19 2019

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
201715-
Winnebago-Boone-McHenry-Lake-Ogle-Lee-De Kalb-Kane-DuPage-Cook-
La Salle-Kendall-Grundy-Will-Kankakee-Livingston-Iroquois-Ford-
Porter-Newton-Jasper-Benton-
1212 PM CDT Sun May 19 2019 /112 PM EDT Sun May 19 2019/

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

.DAY ONE...This Afternoon and Tonight.

Weather hazards expected...

  Elevated Thunderstorm Risk...with an associated:
     Elevated damaging wind risk...up to 65 mph.
     Elevated hail risk...up to quarter size.
  Limited Non thunderstorm wind Risk.

DISCUSSION...

Fast moving clusters of thunderstorms ahead of a cold front will
move across the area through the early to mid afternoon. The
strongest thunderstorms will be capable of producing damaging wind
gusts, with an isolated risk for large hail. The highest chance
for severe wind gusts will be east and southeast of a Peru to
Antioch line. Behind the cold front, southwest winds could gust up
to 40 mph.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Tuesday...
  Limited Flooding Risk at night.
  Elevated Thunderstorm Risk at night.
  Limited Non Thunderstorm Wind Risk.
Wednesday through Saturday...
  Limited Thunderstorm Risk.

DISCUSSION:

A very strong low pressure system developing over the Plains
early this week could bring heavy rain and possibly severe
storms to the outlook area late Tuesday into Tuesday night.

.SPOTTER INFORMATION STATEMENT...

  Spotters will likely be needed through mid afternoon.

GENERAL STORM MOTION OF THE DAY:

  Moving toward the northeast at around 50 mph.

$$

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1212 PM CDT Sun May 19 2019

LMZ740>745-201715-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
1212 PM CDT Sun May 19 2019

This Hazardous Weather Outlook is for portions of the Illinois
nearshore waters of Lake Michigan and the Indiana nearshore
waters of Lake Michigan.

.DAY ONE...This Afternoon and Tonight.

Weather hazards expected...

  Gale force winds and or very hazardous waves.
  Elevated Thunderstorm Risk...with an associated:
     Elevated hail risk...up to quarter size.
     Elevated thunderstorm wind gust risk...to around 50 knots.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Monday...
  Hazardous conditions for small craft are likely.
Tuesday...
  Hazardous conditions for small craft are likely.
  Elevated Thunderstorm Risk.
Wednesday...
  Hazardous conditions for small craft are likely.
  Limited Thunderstorm Risk.
Thursday through Saturday...
  Limited Thunderstorm Risk.

$$

RC

Visit us at http://weather.gov/chicago

Follow us on Facebook, Twitter, and Youtube at:
www.facebook.com/nwschicago
www.twitter.com/nwschicago
www.youtube.com/nwschicago

Hazardous Weather Outlook
National Weather Service Green Bay WI
911 AM CDT Sun May 19 2019

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-200100-
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Door-Marathon-Shawano-
Wood-Portage-Waupaca-Outagamie-Brown-Kewaunee-Waushara-Winnebago-
Calumet-Manitowoc-Southern Marinette County-
Southern Oconto County-
911 AM CDT Sun May 19 2019

This Hazardous Weather Outlook is for north-central and northeast
Wisconsin.

.DAY ONE...This Afternoon and Tonight

Thunderstorms are possible across parts of east central Wisconsin
today. An isolated strong thunderstorm with gusty winds is
possible this afternoon.

Additional rainfall totals of around one-half inch are possible
through this evening. Minor flooding is expected to continue in
northern Brown County today, as strong northeast winds cause water
to back up in the Fox, East and Suamico Rivers, and Duck Creek.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Thunderstorms are possible during the mid to late part of the
work week. It is too early to determine if any of these storms
will be severe.

.SPOTTER INFORMATION STATEMENT...

Spotters are requested to report any occurrences of flooding.

$$

Hazardous Weather Outlook
National Weather Service Green Bay WI
911 AM CDT Sun May 19 2019

LMZ521-522-541>543-200100-
The Bay of Green Bay south of a line from Cedar River MI to Rock
Island Passage-Lake Michigan from Washington Island to Sheboygan-
911 AM CDT Sun May 19 2019

This Hazardous Weather Outlook is for portions of northwest Lake
Michigan and the waters of Green Bay.

.DAY ONE...This Afternoon and Tonight

Gusty northeast winds and high waves will result in hazardous
conditions for small craft today into tonight.

Thunderstorms with gusty winds are possible, especially south of
Kewaunee.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Thunderstorms are possible again during the mid to late part of
the work week.

$$

Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
411 AM CDT Sun May 19 2019

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-200915-
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-
411 AM CDT Sun May 19 2019

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...TODAY AND TONIGHT

The Storm Prediction Center has a marginal risk for severe
thunderstorms this afternoon in Bureau and Putnam counties in
Illinois. However, there is low confidence in severe storms
occurring.

Southwest to west winds will gust to around 40 mph late this
morning into the early evening hours. Drivers of high profile
vehicles should use extra caution.

Area rivers are experiencing flooding. Please see the
latest Flood Statements and Flood Warnings for details.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

Thunderstorms with heavy rain are expected late Tuesday afternoon
and Tuesday night.

The Storm Prediction Center has a marginal risk of severe storms
south of a Vinton, Iowa to Kewanee, Illinois line. South of an
Ottumwa, Iowa to Macomb, Illinois line there is a slight risk of
severe storms.

If severe storms occur Tuesday the most likely time frame is 4 to
8 PM. The primary risk would be large hail.

A wind risk may be possible if storms organize into a line across
Missouri and then race northeast into Iowa and Illinois. If the
line scenario occurs then the severe risk time frame would be 4 PM
to midnight.

There is a daily chance of thunderstorms from Wednesday night
through Saturday that may produce heavy rainfall. It is too early
to determine any severe risk.

Flooding will continue along area rivers. Please see the latest
Flood Statements and Flood Warnings for details.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed for today and tonight.

$$

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
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE