Alert archive / Wisconsin / Winter Storm Warnings in 2019

Winter Storm Warning 6, NWS Milwaukee, WI

April 26, 201913 counties in Wisconsin

NWS Milwaukee, WI issued this winter storm warning at Apr 26, 2019, 3:00 PM CDT for 13 counties in Wisconsin. It took effect at Apr 27, 2019, 7:00 AM CDT. It was in force for 7 hr. 5 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Apr 26, 2019, 3:00 PM CDT (20:00 UTC)
In effect from
Apr 27, 2019, 7:00 AM CDT
Expired
Apr 27, 2019, 2:21 PM CDT
In force
7 hr
Issued by
NWS Milwaukee, WI

Counties Columbia County, WI, Dane County, WI, Green County, WI, Iowa County, WI, Jefferson County, WI, Kenosha County, WI, Lafayette County, WI, Milwaukee County, WI, Racine County, WI, Rock County, WI, Sauk County, WI, Walworth County, WI, Waukesha County, WI

The radar

The Milwaukee radar (KMKX), 36 km from the middle of the area, began a volume at 20:04 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Apr 27, 12:45 PM CDTSNOW 1.22 Se Verona, WI
Apr 27, 12:55 PM CDTSNOW 2.21 Ne Dodgeville, WI
Apr 27, 1:14 PM CDTSNOW 2Mount Horeb, WIMEASURED ON ELEVATED SURFACES. STREETS ARE WET.
Apr 27, 1:45 PM CDTSNOW 1.12 Ene Verona, WI
Apr 27, 2:00 PM CDTSNOW 42 E Belleville, WI

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 8.0 hours before the alert went out and 187 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Green Bay/Straub, WI at 12:00Z on 2019-04-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 12:00Z on 2019-04-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -88 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1793 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
-88 m²/s²
0-3 km storm-relative helicity
72 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

552 
WWUS43 KMKX 262000
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
300 PM CDT Fri Apr 26 2019

...Winter Storm Expected on Saturday... 

.Snow will overspread the region from west to east on Saturday.
Periods of heavy snow are expected, especially across southern
Wisconsin during the late morning and afternoon hours, when
snowfall rates in excess of one inch per hour will be possible.
Significant travel impacts are likely as several inches of wet,
heavy slush accumulates on area roadways. 

WIZ056-062-063-067>069-271200-
/O.UPG.KMKX.WS.A.0005.190427T1500Z-190428T0300Z/
/O.NEW.KMKX.WS.W.0006.190427T1200Z-190428T0300Z/
Sauk-Iowa-Dane-Lafayette-Green-Rock-
Including the cities of Baraboo, Reedsburg, Prairie Du Sac, 
Sauk City, Dodgeville, Mineral Point, Barneveld, Madison, 
Darlington, Shullsburg, Benton, Belmont, Argyle, Blanchardville, 
Monroe, Brodhead, Janesville, and Beloit
300 PM CDT Fri Apr 26 2019

...WINTER STORM WARNING IN EFFECT FROM 7 AM TO 10 PM CDT
SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 4 to 7 
  inches expected. Winds gusting as high as 30 mph.

* WHERE...Portions of south central Wisconsin.

* WHEN...From 7 AM to 10 PM CDT Saturday.

* ADDITIONAL DETAILS...Travel could be very difficult. Patchy 
  blowing snow could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ064-271200-
/O.UPG.KMKX.WS.A.0005.190427T1800Z-190428T0600Z/
/O.NEW.KMKX.WS.W.0006.190427T1200Z-190428T0300Z/
Jefferson-
Including the cities of Watertown, Fort Atkinson, and Jefferson
300 PM CDT Fri Apr 26 2019

...WINTER STORM WARNING IN EFFECT FROM 7 AM TO 10 PM CDT
SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 5 to 8 
  inches expected.

* WHERE...Jefferson County.

* WHEN...From 7 AM to 10 PM CDT Saturday.

* ADDITIONAL DETAILS...Travel could be very difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ065-066-070>072-271200-
/O.UPG.KMKX.WS.A.0005.190427T1800Z-190428T0600Z/
/O.NEW.KMKX.WS.W.0006.190427T1500Z-190428T0300Z/
Waukesha-Milwaukee-Walworth-Racine-Kenosha-
Including the cities of Waukesha, Brookfield, New Berlin, 
Menomonee Falls, Muskego, West Allis, Wauwatosa, Greenfield, 
Franklin, Oak Creek, South Milwaukee, Cudahy, Whitewater, 
Delavan, Elkhorn, Lake Geneva, East Troy, Racine, and Kenosha
300 PM CDT Fri Apr 26 2019

...WINTER STORM WARNING IN EFFECT FROM 10 AM TO 10 PM CDT
SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 5 to 7 
  inches expected. Winds gusting as high as 35 mph.

* WHERE...Waukesha, Milwaukee, Walworth, Racine and Kenosha 
  Counties.

* WHEN...From 10 AM to 10 PM CDT Saturday.

* ADDITIONAL DETAILS...Travel could be very difficult. Patchy 
  blowing snow could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ057-271200-
/O.NEW.KMKX.WS.W.0006.190427T1200Z-190428T0300Z/
Columbia-
Including the cities of Portage, Columbus, Lake Wisconsin, 
and Lodi
300 PM CDT Fri Apr 26 2019

...WINTER STORM WARNING IN EFFECT FROM 7 AM TO 10 PM CDT
SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 5 to 7 
  inches expected.

* WHERE...Columbia County.

* WHEN...From 7 AM to 10 PM CDT Saturday.

* ADDITIONAL DETAILS...Travel could be very difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ046-047-058>060-271200-
/O.NEW.KMKX.WW.Y.0015.190427T1500Z-190428T0300Z/
Marquette-Green Lake-Dodge-Washington-Ozaukee-
Including the cities of Montello, Westfield, Oxford, Neshkoro, 
Endeavor, Berlin, Princeton, Markesan, Beaver Dam, Waupun, 
Mayville, West Bend, Germantown, Hartford, Mequon, Cedarburg, 
and Grafton
300 PM CDT Fri Apr 26 2019

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM TO 10 PM CDT
SATURDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 5 
  inches expected.

* WHERE...Marquette, Green Lake, Dodge, Washington and Ozaukee 
  Counties.

* WHEN...From 10 AM to 10 PM CDT Saturday.

* ADDITIONAL DETAILS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
7 follow-up statements
799 
WWUS43 KMKX 270226
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
926 PM CDT Fri Apr 26 2019

...Winter Storm Expected On Saturday...

.Snow will overspread the region from west to east on Saturday. 
Periods of heavy snow are expected, especially across southern 
Wisconsin during the late morning and afternoon hours, when 
snowfall rates in excess of one inch per hour will be possible. 
Significant travel impacts are likely, as several inches of wet, 
heavy slush accumulates on area roadways.

WIZ056-057-062>064-067>069-271030-
/O.CON.KMKX.WS.W.0006.190427T1200Z-190428T0300Z/
Sauk-Columbia-Iowa-Dane-Jefferson-Lafayette-Green-Rock-
Including the cities of Baraboo, Reedsburg, Prairie Du Sac, 
Sauk City, Portage, Columbus, Lake Wisconsin, Lodi, Dodgeville, 
Mineral Point, Barneveld, Madison, Watertown, Fort Atkinson, 
Jefferson, Darlington, Shullsburg, Benton, Belmont, Argyle, 
Blanchardville, Monroe, Brodhead, Janesville, and Beloit
926 PM CDT Fri Apr 26 2019

...WINTER STORM WARNING REMAINS IN EFFECT FROM 7 AM TO 10 PM CDT
SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 4 to 7 
  inches expected. Winds gusting as high as 30 mph.

* WHERE...Portions of south central Wisconsin.

* WHEN...From 7 AM to 10 PM CDT Saturday.

* ADDITIONAL DETAILS...Travel could be very difficult. Patchy 
  blowing snow could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ065-066-070>072-271030-
/O.CON.KMKX.WS.W.0006.190427T1500Z-190428T0300Z/
Waukesha-Milwaukee-Walworth-Racine-Kenosha-
Including the cities of Waukesha, Brookfield, New Berlin, 
Menomonee Falls, Muskego, West Allis, Wauwatosa, Greenfield, 
Franklin, Oak Creek, South Milwaukee, Cudahy, Whitewater, 
Delavan, Elkhorn, Lake Geneva, East Troy, Racine, and Kenosha
926 PM CDT Fri Apr 26 2019

...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 AM TO 10 PM CDT
SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 5 to 7 
  inches expected. Winds gusting as high as 35 mph.

* WHERE...Waukesha, Milwaukee, Walworth, Racine and Kenosha 
  Counties.

* WHEN...From 10 AM to 10 PM CDT Saturday.

* ADDITIONAL DETAILS...Travel could be very difficult. Patchy 
  blowing snow could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ046-047-058>060-271030-
/O.CON.KMKX.WW.Y.0015.190427T1500Z-190428T0300Z/
Marquette-Green Lake-Dodge-Washington-Ozaukee-
Including the cities of Montello, Westfield, Oxford, Neshkoro, 
Endeavor, Berlin, Princeton, Markesan, Beaver Dam, Waupun, 
Mayville, West Bend, Germantown, Hartford, Mequon, Cedarburg, 
and Grafton
926 PM CDT Fri Apr 26 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM TO 10 PM
CDT SATURDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 5 
  inches expected.

* WHERE...Marquette, Green Lake, Dodge, Washington and Ozaukee 
  Counties.

* WHEN...From 10 AM to 10 PM CDT Saturday.

* ADDITIONAL DETAILS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
Wood
209 
WWUS43 KMKX 270830
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
330 AM CDT Sat Apr 27 2019

...Winter Storm Expected Today into This Evening...

.Snow will overspread the region from west to east today. Periods
of heavy snow are expected, especially across southern Wisconsin 
during the late morning and afternoon hours, when snowfall rates 
in excess of one inch per hour will be possible. Significant 
travel impacts are likely, as several inches of wet, heavy slush 
accumulates on area roadways. The axis of heaviest snow has
shifted a bit south with the latest data.

WIZ057-271630-
/O.CAN.KMKX.WS.W.0006.190427T1200Z-190428T0300Z/
/O.EXA.KMKX.WW.Y.0015.190427T1500Z-190428T0300Z/
Columbia-
Including the cities of Portage, Columbus, Lake Wisconsin, 
and Lodi
330 AM CDT Sat Apr 27 2019

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO
10 PM CDT THIS EVENING...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow expected. Total snow accumulations of 3 to 5 inches
  expected. Snow amounts have been lowered somewhat due to a 
  southward shift in the heaviest snow, thus the change to an 
  advisory.
 
* WHERE...Columbia County.

* WHEN...From 10 AM this morning to 10 PM CDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ046-047-270930-
/O.CAN.KMKX.WW.Y.0015.190427T1500Z-190428T0300Z/
Marquette-Green Lake-
Including the cities of Montello, Westfield, Oxford, Neshkoro, 
Endeavor, Berlin, Princeton, and Markesan
330 AM CDT Sat Apr 27 2019

...WINTER WEATHER ADVISORY IS CANCELLED...

While some snow is expected today and this evening amounts have
trended lower, with 1 to 2 inches expected. Thus the advisory has
been cancelled.

$$

WIZ056-062>064-067>069-271630-
/O.CON.KMKX.WS.W.0006.190427T1200Z-190428T0300Z/
Sauk-Iowa-Dane-Jefferson-Lafayette-Green-Rock-
Including the cities of Baraboo, Reedsburg, Prairie Du Sac, 
Sauk City, Dodgeville, Mineral Point, Barneveld, Madison, 
Watertown, Fort Atkinson, Jefferson, Darlington, Shullsburg, 
Benton, Belmont, Argyle, Blanchardville, Monroe, Brodhead, 
Janesville, and Beloit
330 AM CDT Sat Apr 27 2019

...WINTER STORM WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING
TO 10 PM CDT THIS EVENING...

* WHAT...Heavy snow expected. Total snow accumulations of 4 to 8
  inches expected. Winds gusting as high as 30 mph.

* WHERE...Portions of south central Wisconsin.

* WHEN...From 7 AM to 10 PM CDT Saturday.

* ADDITIONAL DETAILS...Travel could be very difficult. Patchy 
  blowing snow could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ065-066-070>072-271630-
/O.CON.KMKX.WS.W.0006.190427T1500Z-190428T0300Z/
Waukesha-Milwaukee-Walworth-Racine-Kenosha-
Including the cities of Waukesha, Brookfield, New Berlin, 
Menomonee Falls, Muskego, West Allis, Wauwatosa, Greenfield, 
Franklin, Oak Creek, South Milwaukee, Cudahy, Whitewater, 
Delavan, Elkhorn, Lake Geneva, East Troy, Racine, and Kenosha
330 AM CDT Sat Apr 27 2019

...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING
TO 10 PM CDT THIS EVENING...

* WHAT...Heavy snow expected. Total snow accumulations of 5 to 8
  inches expected. Heaviest totals south of I-94. Winds gusting 
  as high as 35 mph.

* WHERE...Waukesha, Milwaukee, Walworth, Racine and Kenosha 
  Counties.

* WHEN...From 10 AM to 10 PM CDT Saturday.

* ADDITIONAL DETAILS...Travel could be very difficult. Patchy 
  blowing snow could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ058>060-271630-
/O.CON.KMKX.WW.Y.0015.190427T1500Z-190428T0300Z/
Dodge-Washington-Ozaukee-
Including the cities of Beaver Dam, Waupun, Mayville, West Bend, 
Germantown, Hartford, Mequon, Cedarburg, and Grafton
330 AM CDT Sat Apr 27 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM THIS
MORNING TO 10 PM CDT THIS EVENING...

* WHAT...Snow expected. Total snow accumulations of 2 to 5 
  inches expected.

* WHERE...Marquette, Green Lake, Dodge, Washington and Ozaukee 
  Counties.

* WHEN...From 10 AM to 10 PM CDT Saturday.

* ADDITIONAL DETAILS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
Collar
862 
WWUS43 KMKX 271238
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
738 AM CDT Sat Apr 27 2019

...Winter Storm Still Expected Across Southern Wisconsin Today...

.A mix of rain and snow will spread into southern Wisconsin this
morning, and then transition to mostly snow late this morning and
afternoon. Periods of moderate to heavy snow are still expected
over parts of south central into southeast Wisconsin this
afternoon. In addition, east to northeast winds will increase and
may gust as high as 35 mph later today. 

Snowfall of anywhere from 3 to 8 inches is expected across south
central into southeast Wisconsin, with the highest accumulation on
grassy and cold surfaces, towards the Illinois border. 

Snowfall rates of an inch per hour is possible. Hazardous travel 
conditions will develop later this morning and afternoon as 
several inches of wet, heavy slush accumulates on area roadways. 
The axis of heaviest snow has shifted a bit south with the latest 
information. This trend may continue today.  

WIZ056-062>064-067>069-272045-
/O.CON.KMKX.WS.W.0006.000000T0000Z-190428T0300Z/
Sauk-Iowa-Dane-Jefferson-Lafayette-Green-Rock-
Including the cities of Baraboo, Reedsburg, Prairie Du Sac, 
Sauk City, Dodgeville, Mineral Point, Barneveld, Madison, 
Watertown, Fort Atkinson, Jefferson, Darlington, Shullsburg, 
Benton, Belmont, Argyle, Blanchardville, Monroe, Brodhead, 
Janesville, and Beloit
738 AM CDT Sat Apr 27 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING...

* WHAT...Mix of rain and snow developing this morning,
  transitioning to wet snow. Total snow accumulations of 4 to 8 
  inches expected. Winds gusting as high as 30 mph.

* WHERE...Portions of south central Wisconsin.

* WHEN...From 7 AM to 10 PM CDT Saturday.

* ADDITIONAL DETAILS...Travel could be very difficult. Patchy
  blowing snow could reduce visibility. The wet snow could weigh
  down tree branches and causes power outages. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ065-066-070>072-272045-
/O.CON.KMKX.WS.W.0006.190427T1500Z-190428T0300Z/
Waukesha-Milwaukee-Walworth-Racine-Kenosha-
Including the cities of Waukesha, Brookfield, New Berlin, 
Menomonee Falls, Muskego, West Allis, Wauwatosa, Greenfield, 
Franklin, Oak Creek, South Milwaukee, Cudahy, Whitewater, 
Delavan, Elkhorn, Lake Geneva, East Troy, Racine, and Kenosha
738 AM CDT Sat Apr 27 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING...

* WHAT...A mix of rain and snow developing later this morning,
  transitioning to mainly snow this afternoon. Total snow
  accumulations of 3 to 8 inches. Heaviest totals south of I-94. 
  Winds gusting as high as 35 mph.

* WHERE...Waukesha, Milwaukee, Walworth, Racine and Kenosha 
  Counties.

* WHEN...From 10 AM to 10 PM CDT Saturday.

* ADDITIONAL DETAILS...Travel could be very difficult. Patchy
  blowing snow could reduce visibility. The wet snow could weigh
  down tree branches and causes power outages. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ057>060-272045-
/O.CON.KMKX.WW.Y.0015.190427T1500Z-190428T0300Z/
Columbia-Dodge-Washington-Ozaukee-
Including the cities of Portage, Columbus, Lake Wisconsin, Lodi, 
Beaver Dam, Waupun, Mayville, West Bend, Germantown, Hartford, 
Mequon, Cedarburg, and Grafton
738 AM CDT Sat Apr 27 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING...

* WHAT...A mix of rain and snow developing this morning,
  transitioning to mainly snow. Total snow accumulations of 2 to 
  5 inches expected.

* WHERE...Columbia, Dodge, Washington and Ozaukee Counties.

* WHEN...From 10 AM to 10 PM CDT Saturday.

* ADDITIONAL DETAILS...Travel could become difficult. The wet 
  snow could weigh down tree branches and causes power outages. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
MBK
346 
WWUS43 KMKX 271428
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
928 AM CDT Sat Apr 27 2019

WIZ056-062>064-067>069-272230-
/O.CON.KMKX.WS.W.0006.000000T0000Z-190428T0300Z/
Sauk-Iowa-Dane-Jefferson-Lafayette-Green-Rock-
Including the cities of Baraboo, Reedsburg, Prairie Du Sac, 
Sauk City, Dodgeville, Mineral Point, Barneveld, Madison, 
Watertown, Fort Atkinson, Jefferson, Darlington, Shullsburg, 
Benton, Belmont, Argyle, Blanchardville, Monroe, Brodhead, 
Janesville, and Beloit
928 AM CDT Sat Apr 27 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING...

* WHAT...Heavy snow. Additional snow accumulations of 3 to 6
  inches, highest to the south. Winds gusting as high as 35 mph.

* WHERE...Portions of south central and southeast Wisconsin.

* WHEN...Until 10 PM CDT this evening.

* ADDITIONAL DETAILS...Travel could be very difficult. Patchy 
  blowing snow could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ065-066-070>072-272230-
/O.CON.KMKX.WS.W.0006.190427T1500Z-190428T0300Z/
Waukesha-Milwaukee-Walworth-Racine-Kenosha-
Including the cities of Waukesha, Brookfield, New Berlin, 
Menomonee Falls, Muskego, West Allis, Wauwatosa, Greenfield, 
Franklin, Oak Creek, South Milwaukee, Cudahy, Whitewater, 
Delavan, Elkhorn, Lake Geneva, East Troy, Racine, and Kenosha
928 AM CDT Sat Apr 27 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING...

* WHAT...Heavy snow expected. Total snow accumulations of 3 to 6
  inches expected, highest to the south. Winds gusting as high as
  35 mph.

* WHERE...Milwaukee, Waukesha, Racine, Walworth and Kenosha 
  Counties.

* WHEN...Until 10 PM CDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Patchy 
  blowing snow could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ057>060-272230-
/O.CON.KMKX.WW.Y.0015.190427T1500Z-190428T0300Z/
Columbia-Dodge-Washington-Ozaukee-
Including the cities of Portage, Columbus, Lake Wisconsin, Lodi, 
Beaver Dam, Waupun, Mayville, West Bend, Germantown, Hartford, 
Mequon, Cedarburg, and Grafton
928 AM CDT Sat Apr 27 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING...

* WHAT...Snow expected. Total snow accumulations of 1 to 3 inches
  expected. The highest totals will be across the southern portion
  of the counties. 

* WHERE...Ozaukee, Columbia, Washington and Dodge Counties.

* WHEN...Until 10 PM CDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
551 
WWUS43 KMKX 271722
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
1222 PM CDT Sat Apr 27 2019

...Snow Threat Continues, but Heaviest Shifting South... 

.The heaviest snow is expected to fall across southwestern
and southern Wisconsin through the rest of the afternoon. The
highest accumulations will be near the Illinois state line, with 
lower amounts to the north. 

Because of the southward shift to the snow, portions of the Winter
Storm Warning have been covered to a Winter Weather Advisory. 

WIZ056-064>066-280130-
/O.CAN.KMKX.WS.W.0006.000000T0000Z-190428T0300Z/
/O.EXA.KMKX.WW.Y.0015.000000T0000Z-190428T0300Z/
Sauk-Jefferson-Waukesha-Milwaukee-
Including the cities of Baraboo, Reedsburg, Prairie Du Sac, 
Sauk City, Watertown, Fort Atkinson, Jefferson, Waukesha, 
Brookfield, New Berlin, Menomonee Falls, Muskego, West Allis, 
Wauwatosa, Greenfield, Franklin, Oak Creek, South Milwaukee, 
and Cudahy
1222 PM CDT Sat Apr 27 2019

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 PM CDT THIS
EVENING...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow. Additional snow accumulations of 2 to 4 inches.

* WHERE...Sauk, Jefferson, Waukesha and Milwaukee Counties.

* WHEN...Until 10 PM CDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ062-063-067>069-280130-
/O.CON.KMKX.WS.W.0006.000000T0000Z-190428T0300Z/
Iowa-Dane-Lafayette-Green-Rock-
Including the cities of Dodgeville, Mineral Point, Barneveld, 
Madison, Darlington, Shullsburg, Benton, Belmont, Argyle, 
Blanchardville, Monroe, Brodhead, Janesville, and Beloit
1222 PM CDT Sat Apr 27 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING...

* WHAT...Heavy snow. Additional snow accumulations of 3 to 5
  inches. Storm total snow accumulation of 4 to 6 inches. Winds 
  gusting as high as 35 mph.

* WHERE...Green, Rock, Lafayette, Dane and Iowa Counties.

* WHEN...Until 10 PM CDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Patchy 
  blowing snow could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ070>072-280130-
/O.CON.KMKX.WS.W.0006.000000T0000Z-190428T0300Z/
Walworth-Racine-Kenosha-
Including the cities of Whitewater, Delavan, Elkhorn, 
Lake Geneva, East Troy, Racine, and Kenosha
1222 PM CDT Sat Apr 27 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING...

* WHAT...Heavy snow. Additional snow accumulations of 4 to 6 
  inches. Winds gusting as high as 35 mph.

* WHERE...Racine, Walworth and Kenosha Counties.

* WHEN...Until 10 PM CDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Patchy 
  blowing snow could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ057>060-280130-
/O.CON.KMKX.WW.Y.0015.000000T0000Z-190428T0300Z/
Columbia-Dodge-Washington-Ozaukee-
Including the cities of Portage, Columbus, Lake Wisconsin, Lodi, 
Beaver Dam, Waupun, Mayville, West Bend, Germantown, Hartford, 
Mequon, Cedarburg, and Grafton
1222 PM CDT Sat Apr 27 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING...

* WHAT...Snow. Additional snow accumulations of 2 to 4 inches.

* WHERE...Ozaukee, Columbia, Washington and Dodge Counties.

* WHEN...Until 10 PM CDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
059 
WWUS43 KMKX 271724 CCA
WSWMKX

URGENT - WINTER WEATHER MESSAGE...CORRECTED
National Weather Service Milwaukee/Sullivan WI
1224 PM CDT Sat Apr 27 2019

...Snow Threat Continues, but Heaviest Shifting South... 

.The heaviest snow is expected to fall across southwestern
and southern Wisconsin through the rest of the afternoon. The
highest accumulations will be near the Illinois state line, with 
lower amounts to the north. 

Because of the southward shift to the snow, portions of the Winter
Storm Warning have been converted to a Winter Weather Advisory. 

WIZ056-064>066-280130-
/O.CAN.KMKX.WS.W.0006.000000T0000Z-190428T0300Z/
/O.EXA.KMKX.WW.Y.0015.000000T0000Z-190428T0300Z/
Sauk-Jefferson-Waukesha-Milwaukee-
Including the cities of Baraboo, Reedsburg, Prairie Du Sac, 
Sauk City, Watertown, Fort Atkinson, Jefferson, Waukesha, 
Brookfield, New Berlin, Menomonee Falls, Muskego, West Allis, 
Wauwatosa, Greenfield, Franklin, Oak Creek, South Milwaukee, 
and Cudahy
1224 PM CDT Sat Apr 27 2019

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 PM CDT THIS
EVENING...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow. Additional snow accumulations of 2 to 4 inches.

* WHERE...Sauk, Jefferson, Waukesha and Milwaukee Counties.

* WHEN...Until 10 PM CDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ062-063-067>069-280130-
/O.CON.KMKX.WS.W.0006.000000T0000Z-190428T0300Z/
Iowa-Dane-Lafayette-Green-Rock-
Including the cities of Dodgeville, Mineral Point, Barneveld, 
Madison, Darlington, Shullsburg, Benton, Belmont, Argyle, 
Blanchardville, Monroe, Brodhead, Janesville, and Beloit
1224 PM CDT Sat Apr 27 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING...

* WHAT...Heavy snow. Additional snow accumulations of 3 to 5
  inches. Storm total snow accumulation of 4 to 6 inches. Winds 
  gusting as high as 35 mph.

* WHERE...Green, Rock, Lafayette, Dane and Iowa Counties.

* WHEN...Until 10 PM CDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Patchy 
  blowing snow could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ070>072-280130-
/O.CON.KMKX.WS.W.0006.000000T0000Z-190428T0300Z/
Walworth-Racine-Kenosha-
Including the cities of Whitewater, Delavan, Elkhorn, 
Lake Geneva, East Troy, Racine, and Kenosha
1224 PM CDT Sat Apr 27 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING...

* WHAT...Heavy snow. Additional snow accumulations of 4 to 6 
  inches. Winds gusting as high as 35 mph.

* WHERE...Racine, Walworth and Kenosha Counties.

* WHEN...Until 10 PM CDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Patchy 
  blowing snow could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions will make travel very hazardous or impossible. If you
must travel, keep an extra flashlight, food and water in your
vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ057>060-280130-
/O.CON.KMKX.WW.Y.0015.000000T0000Z-190428T0300Z/
Columbia-Dodge-Washington-Ozaukee-
Including the cities of Portage, Columbus, Lake Wisconsin, Lodi, 
Beaver Dam, Waupun, Mayville, West Bend, Germantown, Hartford, 
Mequon, Cedarburg, and Grafton
1224 PM CDT Sat Apr 27 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING...

* WHAT...Snow. Additional snow accumulations of 2 to 4 inches.

* WHERE...Ozaukee, Columbia, Washington and Dodge Counties.

* WHEN...Until 10 PM CDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
022 
WWUS43 KMKX 271921
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
221 PM CDT Sat Apr 27 2019

...Light to Moderate Snow Across Southern Wisconsin into This
Evening...

WIZ062-063-067-068-280000-
/O.CAN.KMKX.WS.W.0006.000000T0000Z-190428T0300Z/
/O.EXB.KMKX.WW.Y.0015.000000T0000Z-190428T0000Z/
Iowa-Dane-Lafayette-Green-
Including the cities of Dodgeville, Mineral Point, Barneveld, 
Madison, Darlington, Shullsburg, Benton, Belmont, Argyle, 
Blanchardville, Monroe, and Brodhead
221 PM CDT Sat Apr 27 2019

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 7 PM CDT THIS
EVENING...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow. Additional snow accumulations of 1 to 3 inches.
  Storm total snow of 3 to 5 inches. 

* WHERE...Iowa, Dane, Lafayette and Green Counties.

* WHEN...Until 7 PM CDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Patchy 
  blowing snow could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ069>072-280300-
/O.CAN.KMKX.WS.W.0006.000000T0000Z-190428T0300Z/
/O.EXA.KMKX.WW.Y.0015.000000T0000Z-190428T0300Z/
Rock-Walworth-Racine-Kenosha-
Including the cities of Janesville, Beloit, Whitewater, Delavan, 
Elkhorn, Lake Geneva, East Troy, Racine, and Kenosha
221 PM CDT Sat Apr 27 2019

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 PM CDT THIS
EVENING...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow. Additional snow accumulations of 2 to 4 inches.
  Storm total snow of 3 to 5 inches.  

* WHERE...Rock, Walworth, Racine and Kenosha Counties.

* WHEN...Until 10 PM CDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Patchy 
  blowing snow could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ057>060-272030-
/O.CAN.KMKX.WW.Y.0015.000000T0000Z-190428T0300Z/
Columbia-Dodge-Washington-Ozaukee-
Including the cities of Portage, Columbus, Lake Wisconsin, Lodi, 
Beaver Dam, Waupun, Mayville, West Bend, Germantown, Hartford, 
Mequon, Cedarburg, and Grafton
221 PM CDT Sat Apr 27 2019

...WINTER WEATHER ADVISORY IS CANCELLED...

While light snow showers will remain possible this afternoon and
early this evening, significant accumulations are no longer
expected. Motorists should still be alert for a few slick spots on
area roadways this evening. 

$$

WIZ056-280000-
/O.EXT.KMKX.WW.Y.0015.000000T0000Z-190428T0000Z/
Sauk-
Including the cities of Baraboo, Reedsburg, Prairie Du Sac, 
and Sauk City
221 PM CDT Sat Apr 27 2019

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

* WHAT...Snow. Additional snow accumulations of up to 3 inches.

* WHERE...Sauk County.

* WHEN...Until 7 PM CDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ064>066-280300-
/O.CON.KMKX.WW.Y.0015.000000T0000Z-190428T0300Z/
Jefferson-Waukesha-Milwaukee-
Including the cities of Watertown, Fort Atkinson, Jefferson, 
Waukesha, Brookfield, New Berlin, Menomonee Falls, Muskego, 
West Allis, Wauwatosa, Greenfield, Franklin, Oak Creek, 
South Milwaukee, and Cudahy
221 PM CDT Sat Apr 27 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT THIS
EVENING...

* WHAT...Snow. Additional snow accumulations of 1 to 3 inches.

* WHERE...Milwaukee, Jefferson and Waukesha Counties.

* WHEN...Until 10 PM CDT this evening.

* ADDITIONAL DETAILS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Expect snow covered roads
and limited visibilities, and use caution while driving. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

What forecasters said that day

The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Milwaukee, WI wrote its last area forecast discussion before this winter storm warning went out at Apr 26, 12:32 PM CDT, 2 hours 28 minutes earlier.

Area forecast discussion, Apr 26, 12:32 PM CDT, 2 hours 28 minutes before
Area Forecast Discussion
National Weather Service Milwaukee/Sullivan WI
1232 PM CDT Fri Apr 26 2019

.UPDATE...

Things are on track for the rest of this afternoon.

An initial look at tomorrow's snow suggests no radical changes to
the going forecast. Snow should overspread the area from west to
east during the morning. A very short period of rain/snow mix may
occur on the leading edge of the precipitation, but a changeover
to all snow should happen quickly.

It appears that the heaviest snow accumulation will be from the
Dodgeville area east to Madison and on over to Whitewater and
Racine, and points south to the Illinois state line. This area
could see 5-10 inches of snow on grassy surfaces, with several
inches of slush on area roadways. Somewhat lower amounts in the
3-7 inch range can be expected north of this area. Given that
we're dealing with a fairly narrow band of intense snow, slight
shifts north or south to the heaviest axis of accumulation will
be possible.

Will be finalizing the latest forecast over the next few hours,
including potential upgrades to Winter Storm Warnings and/or
Winter Weather Advisories. Stay tuned.

&&

.AVIATION(18Z TAFS)...

Gusty northwest winds will continue through the rest of this
afternoon, with frequent 25 to 30 knot gusts. Winds will fall off
quickly this evening, as a fast moving area of high pressure moves
through the area.

Winds will become southeasterly to easterly on Saturday. Snow will
overspread the area from the west Saturday morning, with periods
of moderate to heavy snow possible, especially from late morning
through the afternoon hours. Up to an inch per hour of
accumulation will be possible. Snow will be very wet and dense in
nature, with pavement surfaces seeing slushy accumulation.

Snow will end from west to east tomorrow evening.

&&

.PREV DISCUSSION... (Issued 908 AM CDT Fri Apr 26 2019)

UPDATE...

No changes at this point for today. Will be getting our first look
at the 12Z guidance for tomorrow's winter weather event over the
next hour or two; will be taking a look at that and making the
necessary updates late this morning and early this afternoon.

MARINE...

Gusty northwest winds are expected across the lake today. A Small
Craft Advisory is in effect through this afternoon across the
nearshore. A Gale Warning is in effect starting this afternoon,
continuing through late tonight for the northern half of the lake.
Gales to 40 knots can be expected across this area.

Strong low pressure will then move across northern Illinois
Saturday and Saturday night. Gales are likely to develop Saturday
and Saturday night across the southern half of the open waters,
and possibly the nearshore as well. A Gale Watch may eventually be
issued later today.

PREV DISCUSSION... (Issued 527 AM CDT Fri Apr 26 2019)

UPDATE...

No change to the forecast for today.

AVIATION(12Z TAFS)...

A brief period of low level wind shear is possible early this
morning as northwest winds increase aloft before they increase at
the ground. Winds will become gusty out of the northwest by mid
morning and diminish later this evening. Scattered cumulus clouds
are possible across east central and far southeast WI this
afternoon. Look for mostly clear skies and light winds tonight.

Accumulating snow is expected on Saturday. That will spread into
Madison by late morning and Milwaukee by early afternoon. The axis
of heaviest snow looks like it will be along the I-94 corridor
and highest snowfall rates should be during the afternoon hours,
perhaps lingering into the early evening in southeast WI.

Although the snow is falling during the day in late April,
snowfall rates should be able to overcome warm pavement and
accumulate thick slush on runways.

PREV DISCUSSION... (Issued 240 AM CDT Fri Apr 26 2019)

DISCUSSION...

Early this morning...

Winds are light at the surface and aloft early this morning, but
expect the winds aloft to increase out of the northwest over the
next couple of hours. This will help any patchy fog diminish
by sunrise.

Today and Tonight...Forecast Confidence is High.

It will be a windy but sunny day across southern WI. Northwest
winds will be in the 15 to 20 mph range with gusts up to around 30
mph. This is below the wind advisory criteria (gusts over 45 mph).
High temperatures should be around 60 this afternoon.

Low pressure over western Lake Erie will slide east today as high
pressure guilds into the Northern Plains. This will put southern
WI in a tight pressure gradient and thus allow for gusty winds.
Cyclonic flow and lingering moisture may give us some scattered
cumulus clouds over east central and southeast WI this afternoon.

Look for winds to diminish early in the evening as the pressure
gradient relaxes. High cloud will begin to spread in overnight
ahead of the next system. Low temperatures in the 30s are
expected, with coldest temps around 33 degrees toward east central
WI.

Saturday into Saturday night...Forecast confidence is high.

A winter storm watch has been posted for far southern Wisconsin
for roughly Saturday into Saturday evening.

There has not been any significant deviation from the previous
forecast. The previously highlighted forcing elements have not
changed in a meaningful way. There is a potent, fast moving mid
level short wave tied into an impressive coupled upper jet. The
deep omega fields and frontogenesis are strong. The column
moisture has increased slightly...especially near the state line.
The atmosphere is initially dry in the lower portion of the
atmosphere, allowing for rapid wet bulbing below freezing
everywhere except at the surface where temps will be in the lower
to mid 30s. Thus, thankfully, there is no complicating elevated
warm layer. It looks like nearly all this precip will fall as
snow...a little will be lost to evaporation initially, but not
much. Given the strong dynamics, snowfall rates will be high and
will overcome high late April sun angle and mid 30s temp
influence. Ensembles give a large range in potential snowfall. The
aggregate model probabilities give strong support to the previous
forecast snow amounts. There will be a fairly large area of 4 to
6 inches, with a narrow band of up to 10 inches not out of the
question...especially from Madison on west. This banded, heavier
stuff will be assessed more in the very short term as the event
unfolds.

The peak snowfall will run from around mid morning through early
to mid evening. The earlier ending will be west of Madison, later
in the Milwaukee area.

Given the warm pavement temperatures, we'll see melting, but there
will be a rapid slushy accumulation. This slushy stuff will be
difficult to travel in. Impact will likely be high.

Lows Saturday night will fall into the mid 20s to lower 30s. That
slush will then freeze overnight. April sunshine and highs in the
mid to upper 40s will cause a lot of the snow to melt on Sunday.

Sunday...Forecast confidence is high.

There is good agreement that it will be dry as high pressure very
briefly moves through the area. Despite sunshine, the expected
snowcover will keep temps well below normal. As mentioned above,
that sunshine coupled with temps in the 40s will do a lot to melt
the snow.

Sunday night through Friday...Forecast confidence is medium.

The models are getting into a tighter agreement for next week...at
least the early half of the week. A series of low pressure
systems will bring us more rainfall. Temps will be warm enough to
keep it all rain. We should see rain move through Sunday night and
Monday. Tuesday looks to be dry right now. Another round of rain
for Tuesday night and Wednesday. Thursday and Friday look
uncertain as the guidance begins to diverge. There is more rain
potential toward the end of next week. Temps begin the week below
normal, but climb toward seasonal normals by the end of next week.

AVIATION(09Z TAF Update)...

Patchy fog developing under the clearing skies and light winds
will diminish by sunrise as winds increase out of the northwest.
A brief period of low level wind shear is possible as these
northwest winds increase aloft before they increase at the ground.
Winds will become gusty out of the northwest by mid morning and
diminish later this evening. Scattered cumulus clouds are
possible across east central and far southeast WI this afternoon.

Accumulating snow is expected on Saturday. That will spread into
Madison by late morning and Milwaukee by early afternoon. The axis
of heaviest snow looks like it will be along the I-94 corridor
and highest snowfall rates should be during the afternoon hours,
perhaps lingering into the early evening in southeast WI.

Although the snow is falling during the day in late April,
snowfall rates should be able to overcome warm pavement and
accumulate thick slush on runways.

&&

.MKX WATCHES/WARNINGS/ADVISORIES...
WI...Winter Storm Watch from Saturday morning through Saturday
     evening for WIZ056-062-063-067>069.

     Winter Storm Watch from Saturday afternoon through late Saturday
     night for WIZ064>066-070>072.

LM...Gale Warning until 4 AM CDT Saturday for LMZ261-362-364-366-563-
     565-567-868.

     Small Craft Advisory until 7 PM CDT this evening for LMZ643>646.

&&

Update...Boxell
Today/Tonight and Aviation/Marine...Boxell
Saturday THROUGH Thursday...99
Hazardous weather outlook, Apr 26, 3:02 AM CDT, 11 hours 58 minutes before
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
302 AM CDT Fri Apr 26 2019

WIZ046-047-051-052-056>060-062>072-270815-
Marquette-Green Lake-Fond Du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
302 AM CDT Fri Apr 26 2019

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

.DAY ONE...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Winter storm watch has been issued for far southern Wisconsin
Saturday into Saturday evening. A Snow accumulation of 5 to 8
inches is possible. The bulk of the snow will accumulate on colder
surfaces and grassy areas. Despite warmer pavement temperatures,
a slushy accumulation is expected on roads and sidewalks. Stay on
top of the latest forecast, especially if traveling across the
region on Saturday. Sunshine and temperatures in the 40s on Sunday
will help to melt this new snowfall.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected however your snowfall reports
this weekend will be appreciated.

LMZ643>646-270815-
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-
302 AM CDT Fri Apr 26 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 from 9 am through early this
evening due to brisk northwest winds.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Strong east to northeast winds are expected Saturday through
Sunday morning as a potent low pressure system tracks south of
Lake Michigan. A few Gale Gusts are possible Saturday night...
especially south of Milwaukee.

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-270815-
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-
302 AM CDT Fri Apr 26 2019

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

.DAY ONE...Today and Tonight

A gale warning is in effect for the north half of Lake Michigan
this afteroon and tonight due to strong northwest winds.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

A potent low pressure system will track south of Lake Michigan
Saturday into Saturday night. Look for brisk easterly winds on
Saturday followed by strong northeast winds Saturday night. Winds
will likely reach Gale force levels over the southern 1/3 of the
Lake Michigan basin Saturday night, diminishing by sunrise on
Sunday.

www.weather.gov/mkx

The office that day

Everything else NWS Milwaukee, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 26, 2:51 AM CDTWinter Storm WatchMKXDane, Green, Iowa, Jefferson, Kenosha, Lafayette and 6 more12 hr
Apr 26, 3:01 AM CDTGale WarningMKX24 hr
Apr 26, 2:44 PM CDTGale WatchMKX7 hr
Apr 26, 3:00 PM CDTWinter Weather AdvisoryMKXColumbia, Dane, Dodge, Green, Green Lake, Iowa and 12 more31 hr

Nearby

Winter Storm Warnings in Wisconsin, 2019Every winter storm warning in 2019

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.