Severe Thunderstorm Warning 49, NWS Milwaukee, WI

836 
WWUS53 KMKX 150000
SVSMKX

Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
700 PM CDT Tue Apr 14 2026

WIC049-065-150030-
/O.CON.KMKX.SV.W.0049.000000T0000Z-260415T0030Z/
Lafayette WI-Iowa WI-
700 PM CDT Tue Apr 14 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR WESTERN LAFAYETTE AND SOUTHWESTERN IOWA COUNTIES...

At 700 PM CDT, severe thunderstorms were located along a line
extending from near Dodgeville to Hazel Green, moving east at 30 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Dodgeville, Mineral Point, Shullsburg, Belmont, Benton, Linden, New
Diggings, Elk Grove, Calamine, Lead Mine, London, and Governor Dodge
St Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 PM CDT for south central
Wisconsin.

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4303 9021 4303 9007 4251 9023 4251 9042
      4273 9042
TIME...MOT...LOC 0000Z 274DEG 27KT 4299 9004 4254 9044 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

GAGAN

453 
WWUS53 KMKX 150011
SVSMKX

Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
711 PM CDT Tue Apr 14 2026

WIC049-065-150030-
/O.CON.KMKX.SV.W.0049.000000T0000Z-260415T0030Z/
Lafayette WI-Iowa WI-
711 PM CDT Tue Apr 14 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR WESTERN LAFAYETTE AND SOUTH CENTRAL IOWA COUNTIES...

At 711 PM CDT, severe thunderstorms were located along a line
extending from 10 miles east of Dodgeville to near Benton, moving
east at 30 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Dodgeville, Mineral Point, Shullsburg, Benton, New Diggings,
Calamine, Lead Mine, and Governor Dodge St Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 PM CDT for south central
Wisconsin.

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4303 9021 4303 9007 4251 9023 4251 9042
      4272 9033
TIME...MOT...LOC 0011Z 274DEG 27KT 4298 8993 4253 9033 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

GAGAN

544 
WWUS53 KMKX 150022
SVSMKX

Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
722 PM CDT Tue Apr 14 2026

WIC049-065-150032-
/O.EXP.KMKX.SV.W.0049.000000T0000Z-260415T0030Z/
Lafayette WI-Iowa WI-
722 PM CDT Tue Apr 14 2026

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN LAFAYETTE AND SOUTH
CENTRAL IOWA COUNTIES WILL EXPIRE AT 730 PM CDT...

The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.

A Tornado Watch remains in effect until 1000 PM CDT for south central
Wisconsin.

&&

LAT...LON 4303 9021 4303 9007 4251 9023 4251 9042
      4272 9033
TIME...MOT...LOC 0022Z 274DEG 27KT 4297 8983 4253 9023 

$$

GAGAN

Area Forecast Discussion
National Weather Service Milwaukee/Sullivan WI
313 PM CDT Tue Apr 14 2026

.KEY MESSAGES...

- Significant severe weather event remains forecast this
  afternoon & evening (peak intensity 3-10 PM). All severe
  weather hazards, including very large hail greater than golf
  ball size and tornadoes, are possible. Seek immediate shelter
  if a warning is issued for your area later today.

- Additional severe storms possible Wednesday afternoon if a
  front remains stalled across the area. If the front sets up
  south of the area, severe potential will greatly decrease but
  flash flooding will remain possible due to training
  convection.

- Heavy rainfall could lead to additional periods of flooding
  this afternoon into Wednesday. Additional Flood Watches are
  possible especially tomorrow.

- Additional windows for heavy rainfall, flooding, and severe
  thunderstorms Friday into Saturday. All severe hazards will
  be possible later Tuesday afternoon into the evening.

&&

.SHORT TERM...
Issued 309 PM CDT Tue Apr 14 2026

Tonight through Wednesday night:

Storms have begun to fire this afternoon over central to NW
Iowa. This corroborates a westward shift in initiation trends in
recent runs of the HRRR model. Current runs of the WoFS support
two main areas of storms this afternoon with a cluster of
storms over central WI through Sauk, Columbia, Green Lake, and
Marquette Counties that will then track east to the lakeshore
and a cluster that will move through southwest Wisconsin and
east to the lake. These storms are projected to be supercells
when they enter our area but may cluster into a line with
eastward extent

An 18z sounding from Davenport supports a very unstable
environment supportive of 4000 J/kg held by a cap at 800mb. With
the cap eroding to our west, explosive supercell development is
expected, leading to the corridors of storms in southern WI
mentioned in the previous paragraph. All hazards will be
possible during the supercell mode, as mid level lapse rates ~8
C/km and hodograph curvature will support large hail, and
curvature in the low levels of the hodographs and 3CAPE >150J/kg
will support 0-1 km SRH >200 m2/s2 and low level stretching for
tornado formation. As we head into the evening, there may be
some potential for these storms to become linear, leading to a
damaging wind and QLCS tornado threat, especially as the LLJ
increases near sunset and lengthens the low level hodographs.
Todays severe weather hazards are expected to be high end and
should not be taken lightly. Have multiple ways to receive
warnings.

Storms are largely expected to be out of the area after 10PM,
and may push a surface boundary through our area. If this
happens, storms tomorrow will be less severe though flash
flooding will still be a threat. Runs of the CAMs depict a west
to east oriented line of storms that may set up along the WI/IL
border during the late afternoon into the evening, capable of
heavy rain. The wind, hail, and tornado threat with the storms
tomorrow will be far less than today.

CMiller

&&

.LONG TERM...
Issued 245 PM CDT Tue Apr 14 2026

Thursday through Tuesday:

A shortwave trough will track across southern WI Thursday morning.
Scattered showers and a few thunderstorms are expected with this
feature, especially in the morning with deeper moisture still in
place over the region. The chance for showers and thunderstorms
will linger into the afternoon. As the deeper moisture departs
during this time and we heat up, the low level lapse rates will
increase to allow for instability (up to 1000 j/kg) to develop. A
lake breeze should push inland and help to trigger some of the
showers/storms. Look for the precip chances to exit by sunset.

High pressure will pass through Thursday night and lows will dip
into the 40s wherever the lake breeze hit, so bisecting southern
WI from east to west. Friday morning and early afternoon look
quiet, but we will be getting primed for the next system to arrive
Friday late afternoon and night.

Low pressure tracking across the northern Plains on Friday, in
response to a high-amplitude upper trough, will cross Lake
Superior Friday night. A strong cold front will slide across WI
from west to east late Friday night through Saturday morning.
Showers are thunderstorms are expected within the warm sector
Friday afternoon/evening and also along the cold front. Scattered
showers are possible behind the front during the day Saturday.
Strong cold air advection will follow, so low temps should dip
down to around or below freezing Saturday night on brisk westerly
winds. The models dry out the atmosphere quickly, but if there
happens to be any lingering moisture, the precip type would chance
to flurries/snow.

Brisk westerly winds will persist through Sunday. Finally, high
pressure will dominate and give us dry weather through Monday or
Tuesday. The weather pattern has a large degree of uncertainty
beyond Monday between the models.

Cronce

&&

.AVIATION...
Issued 236 PM CDT Tue Apr 14 2026

Severe storms are expected this evening across all of southern
Wisconsin. These storms will be capable of all severe weather
hazards. The storms should track from west to east across the
area between 21Z and 03Z tonight. Higher surface moisture has
supported low VFR to high MVFR BKN to SCT conditions and those
cigs should largely continue into tonight. Ambient, background
flow should be southerly to southwesterly with breezes from 15
to 20 knots. After storms move through tonight, winds should
briefly become light and variable for a time before southerly
winds return. Fog may also form over south central WI.

CMiller

&&

.MARINE...
Issued 245 PM CDT Tue Apr 14 2026

A stationary front will remain parked over the middle third of
the lake into tomorrow, slowly sinking south to the southern end
of the lake by Thursday morning. Winds will remain southerly
south of the front and modestly breezy, while winds north of the
front will remain light and variable to northerly during this
time. Today, severe storms are expected over the southern half
to southern two thirds of the lake. Hail and gusty winds will be
possible and waterspouts may occur with any tornadic storms from
land that move over the waters. This will be most likely near
the shoreline of Wisconsin and Illinois.

The front will clear the lake as a cold front Friday, before
low pressure of 29.6 inches approaches from the west.

CMiller

&&

.MKX WATCHES/WARNINGS/ADVISORIES...
WI...None.
LM...Dense Fog Advisory...LMZ261-LMZ362-LMZ364-LMZ366-LMZ563-LMZ565-
     LMZ567-LMZ643-LMZ644-LMZ669-LMZ671-LMZ868-LMZ870-LMZ872
     until 7 AM Wednesday.

&&

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Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
306 PM CDT Tue Apr 14 2026

WIZ046-047-051-052-056>060-062>072-152015-
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
306 PM CDT Tue Apr 14 2026

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

.DAY ONE...Tonight

Several significant severe storms are expected through late
evening. All severe weather hazards, including very large hail
greater than golf ball size and a few tornadoes, are possible.

.DAYS TWO THROUGH SEVEN...Wednesday through Tuesday

Additional severe thunderstorms are possible Wednesday afternoon
and evening. Heavy rain may produce flooding. Keep up with the
latest forecast updates.

There is a chance of thunderstorms Thursday. Another round of
thunderstorms is forecast Friday night into Saturday. Some of
these storms could be severe.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is needed through this evening. Spotter
activation may be needed once again on Wednesday.

LMZ643>646-152015-
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-
306 PM CDT Tue Apr 14 2026

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

.DAY ONE...Tonight

Dense fog continues mainly north of Milwaukee through tonight.

Severe thunderstorms are expected this evening.

.DAYS TWO THROUGH SEVEN...Wednesday through Tuesday

Chances for thunderstorms continue through the end of the week,
with some strong to severe storms possible Wednesday and Friday
evening.

Fog may continue into Wednesday morning.

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-152015-
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-
306 PM CDT Tue Apr 14 2026

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

.DAY ONE...Tonight

Dense fog continues for the northern two thirds of Lake Michigan
through tonight.

Severe thunderstorms are expected this evening, particularly over
the south half of the lake.

.DAYS TWO THROUGH SEVEN...Wednesday through Tuesday

Chances for thunderstorms continue through the end of the week,
with some strong to severe storms possible Wednesday and Friday
evening.

Fog may continue into Wednesday morning.

MRC

www.weather.gov/mkx

Preliminary Local Storm Report
National Weather Service Milwaukee/Sullivan WI
541 PM CDT Tue Apr 14 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0540 PM     Hail             Cobb                    42.97N 90.33W
04/14/2026  M1.75 Inch       Iowa               WI   Fire Dept/Rescue

&&

Halbach

Preliminary Local Storm Report
National Weather Service Milwaukee/Sullivan WI
543 PM CDT Tue Apr 14 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0520 PM     Hail             1 SE Maple Bluff        43.10N 89.35W
04/14/2026  M2.75 Inch       Dane               WI   Public

0530 PM     Hail             1 NW Sun Prairie        43.19N 89.24W
04/14/2026  E1.00 Inch       Dane               WI   Public

            Report from mPING: Quarter (1.00 in.).

0531 PM     Hail             1 SW Watertown          43.18N 88.73W
04/14/2026  E0.75 Inch       Jefferson          WI   Public

            Report from mPING: Dime (0.75 in.).

0532 PM     Hail             3 N Cottage Grove       43.12N 89.20W
04/14/2026  E1.75 Inch       Dane               WI   Public

            Report from mPING: Golf Ball (1.75 in.).

0533 PM     Hail             1 S Maple Bluff         43.10N 89.36W
04/14/2026  E2.00 Inch       Dane               WI   Public

            Report from mPING: Hen Egg (2.00 in.).

0534 PM     Hail             1 E Maple Bluff         43.10N 89.34W
04/14/2026  E3.00 Inch       Dane               WI   Public

            Report from mPING: Tea Cup (3.00 in.).

0534 PM     Hail             3 NE Maple Bluff        43.14N 89.31W
04/14/2026  E1.75 Inch       Dane               WI   Public

            Report from mPING: Golf Ball (1.75 in.).

0537 PM     Hail             3 E Maple Bluff         43.11N 89.30W
04/14/2026  M0.00 Inch       Dane               WI   Public

0537 PM     Hail             4 W Cottage Grove       43.09N 89.27W
04/14/2026  E2.25 Inch       Dane               WI   Public

            Report from mPING: Hen Egg+ (2.25 in.).

0539 PM     Hail             1 E Madison             43.08N 89.37W
04/14/2026  E3.25 Inch       Dane               WI   Public

            Report from mPING: Baseball+ (3.25 in.).

0540 PM     Hail             Waterloo                43.19N 88.99W
04/14/2026  E0.50 Inch       Jefferson          WI   Public

            Report from mPING: Half-inch (0.50 in.).

0540 PM     Hail             2 NW Watertown          43.21N 88.75W
04/14/2026  E0.50 Inch       Dodge              WI   Public

            Report from mPING: Half-inch (0.50 in.).

&&

Halbach

Preliminary Local Storm Report
National Weather Service Milwaukee/Sullivan WI
547 PM CDT Tue Apr 14 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0500 PM     Hail             2 N Maple Bluff         43.14N 89.38W
04/14/2026  M1.00 Inch       Dane               WI   Public

0543 PM     Hail             Watertown               43.19N 88.73W
04/14/2026  E0.75 Inch       Jefferson          WI   Public

            Report from mPING: Dime (0.75 in.).

0544 PM     Hail             1 N Cottage Grove       43.10N 89.20W
04/14/2026  E1.75 Inch       Dane               WI   Public

            Report from mPING: Golf Ball (1.75 in.).

0545 PM     Hail             3 W Cottage Grove       43.10N 89.26W
04/14/2026  E2.50 Inch       Dane               WI   Public

            Report from mPING: Tennis Ball (2.50 in.).

&&

Halbach

Preliminary Local Storm Report
National Weather Service Milwaukee/Sullivan WI
552 PM CDT Tue Apr 14 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0552 PM     Hail             Watertown               43.19N 88.72W
04/14/2026  M1.75 Inch       Jefferson          WI   NWS Employee

&&

Halbach

Preliminary Local Storm Report
National Weather Service Milwaukee/Sullivan WI
609 PM CDT Tue Apr 14 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0547 PM     Hail             Watertown               43.19N 88.73W
04/14/2026  E1.00 Inch       Jefferson          WI   Public

            Report from mPING: Quarter (1.00 in.).

0548 PM     Hail             Waterloo                43.19N 88.99W
04/14/2026  E1.00 Inch       Jefferson          WI   Public

            Report from mPING: Quarter (1.00 in.).

0548 PM     Hail             4 S Watertown           43.14N 88.74W
04/14/2026  E1.75 Inch       Jefferson          WI   Public

            Report from mPING: Golf Ball (1.75 in.).

0549 PM     Hail             2 E Sun Prairie         43.18N 89.20W
04/14/2026  E1.25 Inch       Dane               WI   Public

            Report from mPING: Half Dollar (1.25 in.).

0549 PM     Hail             1 N Watertown           43.21N 88.73W
04/14/2026  E1.00 Inch       Dodge              WI   Public

            Report from mPING: Quarter (1.00 in.).

0552 PM     Hail             3 N Monona              43.09N 89.32W
04/14/2026  E2.00 Inch       Dane               WI   Public

            Report from mPING: Hen Egg (2.00 in.).

0556 PM     Hail             Waterloo                43.19N 88.99W
04/14/2026  E1.00 Inch       Jefferson          WI   Public

            Report from mPING: Quarter (1.00 in.).

0557 PM     Hail             2 SE Watertown          43.17N 88.69W
04/14/2026  E2.75 Inch       Jefferson          WI   Public

0600 PM     Hail             4 NW Lake Mills         43.12N 88.96W
04/14/2026  E1.00 Inch       Jefferson          WI   Public

            Report from mPING: Quarter (1.00 in.).

0601 PM     Hail             4 NW Lake Mills         43.12N 88.96W
04/14/2026  E1.50 Inch       Jefferson          WI   Public

            Report from mPING: Ping Pong Ball (1.50
            in.).

0606 PM     Hail             1 W Oconomowoc          43.10N 88.53W
04/14/2026  E1.00 Inch       Waukesha           WI   Public

            Report from mPING: Quarter (1.00 in.).

&&

Halbach

Preliminary Local Storm Report
National Weather Service Milwaukee/Sullivan WI
619 PM CDT Tue Apr 14 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0616 PM     Hail             Hartland                43.10N 88.35W
04/14/2026  M1.00 Inch       Waukesha           WI   Trained Spotter

&&

MRC