Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Duluth MN
526 PM CDT Tue Aug 11 2026
MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-122230-
Koochiching-North St. Louis-Northern Cook/Northern Lake-
North Itasca-Central St. Louis-Southern Lake/North Shore-
Southern Cook/North Shore-North Cass-South Itasca-South Cass-
Crow Wing-Northern Aitkin-South Aitkin-Carlton/South St. Louis-
Pine-Douglas-Bayfield-Ashland-Iron-Burnett-Washburn-Sawyer-Price-
526 PM CDT Tue Aug 11 2026
This Hazardous Weather Outlook is for portions of northeast
Minnesota and northwest Wisconsin.
.DAY ONE...Tonight
Areas of fog are forecast tonight along the Lake Superior shore,
portions of the Iron Range, and most of northwest Wisconsin. Fog
may be locally dense with visibility less than 1/4 mile at times.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday
Dense fog will dissipate by 9 AM.
There is a level 1 out of 5 risk of severe storms Wednesday south
of a line from Brainerd, MN and Park Falls, WI. Wind gusts of
40-60 mph and hail up to half dollar coin size are the main
threats.
Strong northeast winds will increase the threat of rip currents
Friday afternoon and evening for areas near the Twin Ports,
including the beaches of Duluth and Superior.
There will be several rounds of thunderstorm chances Saturday
through early next week. Widespread severe storms are not
expected Saturday through early next week at this time.
.SPOTTER INFORMATION STATEMENT...
Skywarn spotter activation is not anticipated tonight.
$$
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
416 PM CDT Tue Aug 11 2026
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-122130-
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
416 PM CDT Tue Aug 11 2026 /516 PM EDT Tue Aug 11 2026/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Elevated Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 65 mph.
Level 1 of 5 Large Hail Risk...up to half dollar size.
Elevated Flooding Risk.
DISCUSSION...
Isolated non-severe thunderstorms may develop late this afternoon
through mid evening. Primary hazards include occasional lightning
strikes and localized downpours.
Scattered thunderstorms are expected late this evening and
overnight. Some of these thunderstorms may become severe with
localized damaging winds and large hail. Heavy rain and localized
flash flooding will also be possible.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Wednesday and Thursday...
Elevated Flooding Risk.
Elevated Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Friday...
Elevated Flooding Risk.
Limited Thunderstorm Risk.
Saturday...
Limited Flooding Risk.
Limited Thunderstorm Risk.
Sunday...
Limited Thunderstorm Risk.
DISCUSSION...
Several rounds of thunderstorms are expected through the end of
this week. Strong to severe thunderstorms will be possible at
times. Heavy rain and localized flash flooding will also be
possible at times.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed later this evening and overnight.
GENERAL STORM MOTION OF THE DAY:
Moving toward the southeast at 30 to 40 mph.
$$
Hazardous Weather Outlook
National Weather Service Des Moines IA
253 PM CDT Tue Aug 11 2026
IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-
081>086-092>097-122000-
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Pocahontas-Humboldt-Wright-Franklin-Butler-Bremer-Sac-Calhoun-
Webster-Hamilton-Hardin-Grundy-Black Hawk-Crawford-Carroll-Greene-
Boone-Story-Marshall-Tama-Audubon-Guthrie-Dallas-Polk-Jasper-
Poweshiek-Cass-Adair-Madison-Warren-Marion-Mahaska-Adams-Union-
Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold-Decatur-Wayne-
Appanoose-Davis-
253 PM CDT Tue Aug 11 2026
This Hazardous Weather Outlook is for portions of central Iowa.
.DAY ONE...This afternoon and tonight
Warm and humid conditions are expected this afternoon in southern
to portions of central Iowa where heat indices may near 100
degrees.
There remains a chance of storms arriving after midnight tonight.
If storms do arrive, they may contain damaging winds and perhaps
locally heavy rainfall.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday
Additional chances for showers and thunderstorms continue through
the week. Severe weather and excessive rainfall are possible at
times through at least Thursday.
Warm and humid conditions are expected to continue into Wednesday
in southern to portions of central Iowa where heat indices may
near 100 degrees.
.SPOTTER INFORMATION STATEMENT...
Spotter activation may be needed at times over the next few days.
Severe weather and rainfall reports are also appreciated.
$$
Ansorge
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
202 PM CDT Tue Aug 11 2026
WIZ046-047-051-052-056>060-062>072-121915-
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
202 PM CDT Tue Aug 11 2026
This Hazardous Weather Outlook is for portions of east central
Wisconsin, south central Wisconsin and southeast Wisconsin.
.DAY ONE...Tonight
There are slight chances for weak isolated thunderstorms.
Areas of fog are expected late tonight into early Wednesday
morning. Some areas may become dense.
.DAYS TWO THROUGH SEVEN...Wednesday through Tuesday
Off and on chances for showers and thunderstorms this week and
into the weekend.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed.
$$
Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
142 PM CDT Tue Aug 11 2026
IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-121845-
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-
142 PM CDT Tue Aug 11 2026
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
A heat advisory remains in effect until 8 PM for areas along and
south of a line from Sigourney, Iowa to Aledo, Illinois.
Isolated thunderstorms are possible this afternoon and tonight.
The entire area is in a marginal, level 1 out 5, risk for severe
storms. If a severe storm would occur, damaging wind would be the
primary risk.
.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
Rounds of strong to severe storms will again be possible Wednesday
and Thursday as the area remains in the active storm track. There
is a Marginal, level 1 out of 5, Risk for severe weather for the
portions of the Outlook Area both days. Locally heavy rain and
flooding will also be a concern.
There will continue to be an almost daily chance for thunderstorms
into the upcoming weekend.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated this afternoon or tonight.
$$
Hazardous Weather Outlook
National Weather Service Green Bay WI
1248 PM CDT Tue Aug 11 2026
WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-121800-
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Door-Marathon-Shawano-
Wood-Portage-Waupaca-Outagamie-Brown-Kewaunee-Waushara-Winnebago-
Calumet-Manitowoc-Southern Marinette County-
Southern Oconto County-
1248 PM CDT Tue Aug 11 2026
This Hazardous Weather Outlook is for north-central and northeast
Wisconsin.
.DAY ONE...This Afternoon and Tonight
An isolated thunderstorm is possible through this evening. The
threat of severe weather is low.
Areas of locally dense fog may reduce visibility to under 1/2 mile
tonight.
.DAYS TWO THROUGH SEVEN...Wednesday through Tuesday
Small chances for thunderstorms continue through Thursday with
additional thunderstorms possible over the weekend. The risk for
organized severe weather is low.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed tonight.
$$
