Alert archive / Wisconsin / Winter Storm Warnings in 2020

Winter Storm Warning 1, NWS Green Bay, WI

January 10, 20207 counties in Wisconsin

NWS Green Bay, WI issued this winter storm warning at Jan 10, 2020, 3:16 PM CST for 7 counties in Wisconsin. It took effect at Jan 11, 2020, 3:00 PM CST. It was in force for 7 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jan 10, 2020, 3:16 PM CST (21:16 UTC)
In effect from
Jan 11, 2020, 3:00 PM CST
Expired
Jan 11, 2020, 9:51 PM CST
In force
7 hr
Issued by
NWS Green Bay, WI

Counties Brown County, WI, Calumet County, WI, Door County, WI, Kewaunee County, WI, Manitowoc County, WI, Outagamie County, WI, Winnebago County, WI

The radar

The Green Bay radar (KGRB), 19 km from the middle of the area, began a volume at 21:15 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.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 9.3 hours before the alert went out and 17 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 2020-01-10Temperature 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 2020-01-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -16 square meters per square second.1939587897117136Sfc1 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
857 m above ground
0-6 km bulk shear
75 kt
0-1 km storm-relative helicity
-16 m²/s²
0-3 km storm-relative helicity
13 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

353 
WWUS43 KGRB 102116
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
316 PM CST Fri Jan 10 2020

...WINTER WEATHER WILL IMPACT TRAVEL THIS WEEKEND...

.Two rounds of winter weather will impact the region tonight
through Saturday night. The first round will bring 1 to 3 inches
of snow to the Fox Valley and lakeshore counties tonight, along 
with blowing and drifting snow. The second round will arrive late 
Saturday afternoon and early evening, and bring 3 to 7 inches of 
snow, and considerable blowing and drifting snow, to much of 
central, northeast and east central Wisconsin. The worst conditions
will occur in the Fox Valley and lakeshore areas, where the 
highest snowfall totals are expected, and northeast winds will 
gust to 35 to 40 mph. Travel conditions will be significantly 
impacted.

The strong northeast winds will also result in increased 
potential for lakeshore flooding, shoreline erosion, and ice
shoves on the bay and Lake Winnebago.

WIZ049-050-110500-
/O.UPG.KGRB.WS.A.0001.200111T2100Z-200112T1200Z/
/O.NEW.KGRB.WS.W.0001.200111T2100Z-200112T1200Z/
/O.NEW.KGRB.WW.Y.0002.200111T0300Z-200111T1200Z/
Calumet-Manitowoc-
Including the cities of Chilton, Brillion, New Holstein, 
Manitowoc, and Two Rivers
316 PM CST Fri Jan 10 2020

...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO
6 AM CST SATURDAY...
...WINTER STORM WARNING IN EFFECT FROM 3 PM SATURDAY TO 6 AM CST
SUNDAY...

* WHAT...For the Winter Weather Advisory, snow expected. Total
  snow accumulations of 2 to 3 inches, with considerable blowing
  and drifting snow. For the Winter Storm Warning, heavy snow
  expected. Total snow accumulations of 5 to 7 inches. Winds
  gusting as high as 40 mph, along with widespread blowing and
  drifting snow. Local whiteout conditions possible.

* WHERE...Calumet and Manitowoc Counties.

* WHEN...For the Winter Weather Advisory, from 9 PM this evening 
  to 6 AM CST Saturday. For the Winter Storm Warning, from 3 PM 
  Saturday to 6 AM CST Sunday. 

* IMPACTS...Travel could be very difficult. Areas of blowing 
  snow could significantly reduce visibility. Gusty winds could 
  bring down tree branches, resulting in localized power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

Slow down and use caution while traveling. 

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

&&

$$

WIZ038>040-048-110500-
/O.UPG.KGRB.WS.A.0001.200111T2100Z-200112T1200Z/
/O.NEW.KGRB.WS.W.0001.200111T2100Z-200112T1200Z/
Outagamie-Brown-Kewaunee-Winnebago-
Including the cities of Appleton, Green Bay, Kewaunee, Luxemburg,
Oshkosh, Neenah, and Menasha
316 PM CST Fri Jan 10 2020

...WINTER STORM WARNING IN EFFECT FROM 3 PM SATURDAY TO 6 AM CST
SUNDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 5 to 7
  inches. Winds gusting as high as 40 mph, causing considerable 
  blowing and drifting snow. Local whiteout conditions possible.

* WHERE...Outagamie, Brown, Kewaunee and Winnebago Counties.

* WHEN...From 3 PM Saturday to 6 AM CST Sunday.

* IMPACTS...Travel could be very difficult. Areas of blowing 
  snow could significantly reduce visibility. Gusty winds could 
  bring down tree branches, resulting in localized power outages.

* ADDITIONAL DETAILS...Ice shoves will be possible on the southern
  end of the bay and Lake Winnebago.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

WIZ022-110500-
/O.UPG.KGRB.WS.A.0001.200111T2100Z-200112T1200Z/
/O.NEW.KGRB.WS.W.0001.200112T0000Z-200112T1200Z/
Door-
Including the cities of Sturgeon Bay, Fish Creek, and Sister Bay
316 PM CST Fri Jan 10 2020

...WINTER STORM WARNING IN EFFECT FROM 6 PM SATURDAY TO 6 AM CST
SUNDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 5 to 7
  inches. Winds gusting as high as 40 mph, causing considerable 
  blowing and drifting snow. Local whiteout conditions possible.

* WHERE...Door County.

* WHEN...From 6 PM Saturday to 6 AM CST Sunday.

* IMPACTS...Travel could be very difficult. Areas of blowing 
  snow could significantly reduce visibility. Gusty winds could 
  bring down tree branches, resulting in localized power outages.

* ADDITIONAL DETAILS...Ice shoves will be possible on the southern
  end of the bay.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

WIZ037-045-110500-
/O.UPG.KGRB.WS.A.0001.200111T2100Z-200112T1200Z/
/O.NEW.KGRB.WW.Y.0003.200111T2100Z-200112T1200Z/
Waupaca-Waushara-
Including the cities of New London, Waupaca, Clintonville, 
Redgranite, and Wautoma
316 PM CST Fri Jan 10 2020

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 PM SATURDAY TO 6 AM
CST SUNDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 5 inches.
  Winds gusting to 25 to 30 mph, causing areas of blowing and 
  drifting snow in open areas. 
 
* WHERE...Waupaca and Waushara Counties.

* WHEN...From 3 PM Saturday to 6 AM CST Sunday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing 
  snow could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

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

&&

$$

WIZ013-020-021-031-073-074-110500-
/O.UPG.KGRB.WS.A.0001.200111T2100Z-200112T1200Z/
/O.NEW.KGRB.WW.Y.0003.200112T0000Z-200112T1200Z/
Northern Marinette County-Menominee-Northern Oconto County-
Shawano-Southern Marinette County-Southern Oconto County-
Including the cities of Niagara, Wausaukee, Keshena, Neopit, 
Mountain, Lakewood, Townsend, Shawano, Harmony, Peshtigo, 
Porterfield, Crivitz, High Falls Reservoir, Loomis, Middle Inlet,
Little Suamico, Sobieski, Brookside, Oconto, and Pensaukee
316 PM CST Fri Jan 10 2020

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM SATURDAY TO 6 AM
CST SUNDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 5 inches.
  Winds gusting to 25 to 35 mph. Areas of blowing and drifting
  snow, especially along the bayshore.

* WHERE...Portions of northeast Wisconsin.

* WHEN...From 6 PM Saturday to 6 AM CST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

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

&&

$$
Kieckbusch
7 follow-up statements
422 
WWUS43 KGRB 110439
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
1039 PM CST Fri Jan 10 2020

...WINTER WEATHER WILL IMPACT TRAVEL THIS WEEKEND...

.Two rounds of winter weather will impact the region tonight
through Saturday night. The first round will bring 1 to 3 inches
of snow to the Fox Valley and lakeshore counties tonight, along
with blowing and drifting snow. The second round will arrive late
Saturday afternoon and early evening, and bring 3 to 7 inches of
snow, and considerable blowing and drifting snow, to much of
central, northeast and east central Wisconsin. The worst
conditions will occur in the Fox Valley and lakeshore areas,
where the highest snowfall totals are expected, and northeast
winds will gust to 35 to 40 mph. Travel conditions will be
significantly impacted.

The strong northeast winds will also result in increased
potential for lakeshore flooding, shoreline erosion, and ice
shoves on the bay and Lake Winnebago.

WIZ049-050-111300-
/O.CON.KGRB.WS.W.0001.200111T2100Z-200112T1200Z/
/O.CON.KGRB.WW.Y.0002.000000T0000Z-200111T1200Z/
Calumet-Manitowoc-
Including the cities of Chilton, Brillion, New Holstein, 
Manitowoc, and Two Rivers
1039 PM CST Fri Jan 10 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST
SATURDAY...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 PM SATURDAY TO
6 AM CST SUNDAY...

* WHAT...For the Winter Weather Advisory, snow expected. Total 
  snow accumulations of 2 to 3 inches, with considerable blowing 
  and drifting snow. For the Winter Storm Warning, heavy snow 
  expected. Total snow accumulations of 5 to 7 inches. Winds 
  gusting as high as 40 mph, along with widespread blowing and 
  drifting snow. Local whiteout conditions possible.

* WHERE...Calumet and Manitowoc Counties.

* WHEN...For the Winter Weather Advisory, until to 6 AM CST 
  Saturday. For the Winter Storm Warning, from 3 PM Saturday to 6 
  AM CST Sunday.

* IMPACTS...Travel could be very difficult. Areas of blowing snow
  could significantly reduce visibility. Gusty winds could bring
  down tree branches, resulting in localized power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

Slow down and use caution while traveling.

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

&&

$$

WIZ038>040-048-111300-
/O.CON.KGRB.WS.W.0001.200111T2100Z-200112T1200Z/
Outagamie-Brown-Kewaunee-Winnebago-
Including the cities of Appleton, Green Bay, Kewaunee, Luxemburg,
Oshkosh, Neenah, and Menasha
1039 PM CST Fri Jan 10 2020

...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 PM SATURDAY TO
6 AM CST SUNDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 5 to 7 
  inches. Winds gusting as high as 40 mph, causing considerable 
  blowing and drifting snow. Local whiteout conditions possible.

* WHERE...Outagamie, Brown, Kewaunee and Winnebago Counties.

* WHEN...From 3 PM Saturday to 6 AM CST Sunday.

* IMPACTS...Travel could be very difficult. Areas of blowing 
  snow could significantly reduce visibility. Gusty winds could 
  bring down tree branches, resulting in localized power outages.

* ADDITIONAL DETAILS...Ice shoves will be possible on the 
  southern end of the bay and Lake Winnebago.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

WIZ022-111300-
/O.CON.KGRB.WS.W.0001.200112T0000Z-200112T1200Z/
Door-
Including the cities of Sturgeon Bay, Fish Creek, and Sister Bay
1039 PM CST Fri Jan 10 2020

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM SATURDAY TO
6 AM CST SUNDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 5 to 7 
  inches. Winds gusting as high as 40 mph, causing considerable 
  blowing and drifting snow. Local whiteout conditions possible.

* WHERE...Door County.

* WHEN...From 6 PM Saturday to 6 AM CST Sunday.

* IMPACTS...Travel could be very difficult. Areas of blowing 
  snow could significantly reduce visibility. Gusty winds could 
  bring down tree branches, resulting in localized power outages.

* ADDITIONAL DETAILS...Ice shoves will be possible on the 
  southern end of the bay.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

WIZ037-045-111300-
/O.CON.KGRB.WW.Y.0003.200111T2100Z-200112T1200Z/
Waupaca-Waushara-
Including the cities of New London, Waupaca, Clintonville, 
Redgranite, and Wautoma
1039 PM CST Fri Jan 10 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM SATURDAY
TO 6 AM CST SUNDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 5 
  inches. Winds gusting to 25 to 30 mph, causing areas of 
  blowing and drifting snow in open areas.

* WHERE...Waupaca and Waushara Counties.

* WHEN...From 3 PM Saturday to 6 AM CST Sunday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing
  snow could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

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

&&

$$

WIZ013-020-021-031-073-074-111300-
/O.CON.KGRB.WW.Y.0003.200112T0000Z-200112T1200Z/
Northern Marinette County-Menominee-Northern Oconto County-
Shawano-Southern Marinette County-Southern Oconto County-
Including the cities of Niagara, Wausaukee, Keshena, Neopit, 
Mountain, Lakewood, Townsend, Shawano, Harmony, Peshtigo, 
Porterfield, Crivitz, High Falls Reservoir, Loomis, Middle Inlet,
Little Suamico, Sobieski, Brookside, Oconto, and Pensaukee
1039 PM CST Fri Jan 10 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM SATURDAY
TO 6 AM CST SUNDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 5 
  inches. Winds gusting to 25 to 35 mph. Areas of blowing and 
  drifting snow, especially along the bayshore.

* WHERE...Portions of northeast Wisconsin.

* WHEN...From 6 PM Saturday to 6 AM CST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

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

&&

$$

Kurimski
605 
WWUS43 KGRB 110837
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
237 AM CST Sat Jan 11 2020

...WINTER WEATHER WILL IMPACT TRAVEL THIS WEEKEND...

.Another round of snow will arrive late this afternoon and early 
evening, bringing snowfall totals of 2 to 6 inches, heaviest 
along the lakeshore. Along with the snowfall, considerable blowing
and drifting snow will occur, especially from the Fox Valley to 
the lakeshore counties. The worst conditions will occur along the 
lakeshore areas, where the highest snowfall totals are expected, 
and northeast winds will gust to 35 to 40 mph. Travel conditions 
will be significantly impacted.

The strong northeast winds will also result in increased
potential for lakeshore flooding, shoreline erosion, and ice
shoves on the bay and Lake Winnebago.

WIZ049-111830-
/O.CAN.KGRB.WS.W.0001.200111T2100Z-200112T1200Z/
/O.NEW.KGRB.WW.Y.0004.200111T2100Z-200112T1200Z/
/O.CON.KGRB.WW.Y.0002.000000T0000Z-200111T1200Z/
Calumet-
Including the cities of Chilton, Brillion, and New Holstein
237 AM CST Sat Jan 11 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST EARLY
THIS MORNING...
...WINTER WEATHER ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO
6 AM CST SUNDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...For the first Winter Weather Advisory, snow and blowing
  snow. Additional snow accumulations of up to one inch. Winds
  gusting as high as 35 mph. For the second Winter Weather
  Advisory, snow and blowing snow expected. Total snow 
  accumulations of 1 to 3 inches. Winds gusting as high as 35 mph.

* WHERE...Calumet County.

* WHEN...For the first Winter Weather Advisory, until 6 AM CST 
  early this morning. For the second Winter Weather Advisory, 
  from 3 PM this afternoon to 6 AM CST Sunday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing
  snow could significantly reduce visibility. Gusty winds could
  bring down tree branches, resulting in localized power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

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

&&

$$

WIZ039-048-111830-
/O.CAN.KGRB.WS.W.0001.200111T2100Z-200112T1200Z/
/O.NEW.KGRB.WW.Y.0004.200111T2100Z-200112T1200Z/
Brown-Winnebago-
Including the cities of Green Bay, Oshkosh, Neenah, and Menasha
237 AM CST Sat Jan 11 2020

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO
6 AM CST SUNDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow and blowing snow expected. Total snow accumulations
  of up to two inches. Winds gusting as high as 35 mph.

* WHERE...Brown and Winnebago Counties.

* WHEN...From 3 PM this afternoon to 6 AM CST Sunday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing
  snow could significantly reduce visibility. Gusty winds could
  bring down tree branches, resulting in localized power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

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

&&

$$

WIZ022-111830-
/O.CAN.KGRB.WS.W.0001.200112T0000Z-200112T1200Z/
/O.NEW.KGRB.WW.Y.0004.200112T0000Z-200112T1200Z/
Door-
Including the cities of Sturgeon Bay, Fish Creek, and Sister Bay
237 AM CST Sat Jan 11 2020

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO
6 AM CST SUNDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow and blowing snow expected. Total snow accumulations
  of up to two inches. Winds gusting as high as 40 mph. Local
  whiteout conditions possible in exposed locations.

* WHERE...Door County.

* WHEN...From 6 PM this evening to 6 AM CST Sunday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing
  snow could significantly reduce visibility. Gusty winds could
  bring down tree branches, resulting in localized power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

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

&&

$$

WIZ038-110945-
/O.CAN.KGRB.WS.W.0001.200111T2100Z-200112T1200Z/
Outagamie-
Including the city of Appleton
237 AM CST Sat Jan 11 2020

...WINTER STORM WARNING IS CANCELLED...

The storm system has shifted farther to the east, which will allow
for only minor snowfall accumulations.

$$

WIZ013-020-021-031-073-074-110945-
/O.CAN.KGRB.WW.Y.0003.200112T0000Z-200112T1200Z/
Northern Marinette County-Menominee-Northern Oconto County-
Shawano-Southern Marinette County-Southern Oconto County-
Including the cities of Niagara, Wausaukee, Keshena, Neopit, 
Mountain, Lakewood, Townsend, Shawano, Harmony, Peshtigo, 
Porterfield, Crivitz, High Falls Reservoir, Loomis, Middle Inlet,
Little Suamico, Sobieski, Brookside, Oconto, and Pensaukee
237 AM CST Sat Jan 11 2020

...WINTER WEATHER ADVISORY IS CANCELLED...

The storm system has shifted farther to the east, which will 
allow for only minor snowfall accumulations.

$$

WIZ037-045-110945-
/O.CAN.KGRB.WW.Y.0003.200111T2100Z-200112T1200Z/
Waupaca-Waushara-
Including the cities of New London, Waupaca, Clintonville, 
Redgranite, and Wautoma
237 AM CST Sat Jan 11 2020

...WINTER WEATHER ADVISORY IS CANCELLED...

The storm system has shifted farther to the east, which will 
allow for only minor snowfall accumulations.

$$

WIZ050-111830-
/O.CON.KGRB.WS.W.0001.200111T2100Z-200112T1200Z/
/O.CON.KGRB.WW.Y.0002.000000T0000Z-200111T1200Z/
Manitowoc-
Including the cities of Manitowoc and Two Rivers
237 AM CST Sat Jan 11 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST EARLY
THIS MORNING...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 6 AM CST SUNDAY...

* WHAT...For the Winter Storm Warning, heavy snow and blowing snow
  expected. Total snow accumulations of 3 to 6 inches. Winds
  gusting as high as 40 mph. For the Winter Weather Advisory, snow
  and blowing snow. Additional snow accumulations of up to one 
  inch. Winds gusting as high as 40 mph.

* WHERE...Manitowoc County.

* WHEN...For the Winter Storm Warning, from 3 PM this afternoon 
  to 6 AM CST Sunday. For the Winter Weather Advisory, until 6 
  AM CST early this morning.

* IMPACTS...Travel could be very difficult. Areas of blowing snow
  could significantly reduce visibility. Gusty winds could bring
  down tree branches, resulting in localized power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

Slow down and use caution while traveling. 

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

&&

$$

WIZ040-111830-
/O.CON.KGRB.WS.W.0001.200111T2100Z-200112T1200Z/
Kewaunee-
Including the cities of Kewaunee and Luxemburg
237 AM CST Sat Jan 11 2020

...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 6 AM CST SUNDAY...

* WHAT...Heavy snow and blowing snow expected. Total snow
  accumulations of 2 to 5 inches with locally higher totals
  possible. Winds gusting as high as 40 mph.

* WHERE...Kewaunee County.

* WHEN...From 3 PM this afternoon to 6 AM CST Sunday.

* IMPACTS...Travel could be very difficult. Areas of blowing 
  snow could significantly reduce visibility. Gusty winds could 
  bring down tree branches, resulting in localized power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$
156 
WWUS43 KGRB 111148
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
548 AM CST Sat Jan 11 2020

...WINTER WEATHER WILL IMPACT TRAVEL THIS WEEKEND...

.Another round of snow will arrive late this afternoon and early
evening, bringing snowfall totals of 2 to 6 inches, heaviest
along the lakeshore. Along with the snowfall, considerable
blowing and drifting snow will occur, especially from the Fox
Valley to the lakeshore counties. The worst conditions will occur
along the lakeshore areas, where the highest snowfall totals are
expected, and northeast winds will gust to 35 to 40 mph. Travel
conditions will be significantly impacted.

The strong northeast winds will also result in increased
potential for lakeshore flooding, shoreline erosion, and ice
shoves on the bay and Lake Winnebago.

WIZ050-111830-
/O.EXP.KGRB.WW.Y.0002.000000T0000Z-200111T1200Z/
/O.CON.KGRB.WS.W.0001.200111T2100Z-200112T1200Z/
Manitowoc-
Including the cities of Manitowoc and Two Rivers
548 AM CST Sat Jan 11 2020

...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 6 AM CST SUNDAY...
...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 AM CST EARLY THIS
MORNING...

* WHAT...Heavy snow and blowing snow expected. Total snow 
  accumulations of 3 to 6 inches. Winds gusting as high as 40 mph.
 
* WHERE...Manitowoc County.

* WHEN...For the Winter Storm Warning, from 3 PM this afternoon 
  to 6 AM CST Sunday. For the Winter Weather Advisory, until 6 
  AM CST early this morning.

* IMPACTS...Travel could be very difficult. Areas of blowing snow
  could significantly reduce visibility. Gusty winds could bring
  down tree branches, resulting in localized power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

WIZ049-111830-
/O.EXP.KGRB.WW.Y.0002.000000T0000Z-200111T1200Z/
/O.CON.KGRB.WW.Y.0004.200111T2100Z-200112T1200Z/
Calumet-
Including the cities of Chilton, Brillion, and New Holstein
548 AM CST Sat Jan 11 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 6 AM CST SUNDAY...
...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 AM CST EARLY THIS
MORNING...

* WHAT...Snow and blowing snow expected. Total snow accumulations
  of 1 to 3 inches. Winds gusting as high as 35 mph.

* WHERE...Calumet County.

* WHEN...For the first Winter Weather Advisory, until 6 AM CST 
  early this morning. For the second Winter Weather Advisory, 
  from 3 PM this afternoon to 6 AM CST Sunday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing
  snow could significantly reduce visibility. Gusty winds could
  bring down tree branches, resulting in localized power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

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

&&

$$

WIZ040-111830-
/O.CON.KGRB.WS.W.0001.200111T2100Z-200112T1200Z/
Kewaunee-
Including the cities of Kewaunee and Luxemburg
548 AM CST Sat Jan 11 2020

...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 6 AM CST SUNDAY...

* WHAT...Heavy snow and blowing snow expected. Total snow
  accumulations of 2 to 5 inches with locally higher totals
  possible. Winds gusting as high as 40 mph.

* WHERE...Kewaunee County.

* WHEN...From 3 PM this afternoon to 6 AM CST Sunday.

* IMPACTS...Travel could be very difficult. Areas of blowing 
  snow could significantly reduce visibility. Gusty winds could 
  bring down tree branches, resulting in localized power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

WIZ039-048-111830-
/O.CON.KGRB.WW.Y.0004.200111T2100Z-200112T1200Z/
Brown-Winnebago-
Including the cities of Green Bay, Oshkosh, Neenah, and Menasha
548 AM CST Sat Jan 11 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 6 AM CST SUNDAY...

* WHAT...Snow and blowing snow expected. Total snow accumulations
  of up to two inches. Winds gusting as high as 35 mph.

* WHERE...Brown and Winnebago Counties.

* WHEN...From 3 PM this afternoon to 6 AM CST Sunday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing
  snow could significantly reduce visibility. Gusty winds could
  bring down tree branches, resulting in localized power outages.
  Ice shoves could occur along the Bay and along the south shore
  of Lake Winnebago.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

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

&&

$$

WIZ022-111830-
/O.CON.KGRB.WW.Y.0004.200112T0000Z-200112T1200Z/
Door-
Including the cities of Sturgeon Bay, Fish Creek, and Sister Bay
548 AM CST Sat Jan 11 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO 6 AM CST SUNDAY...

* WHAT...Snow and blowing snow expected. Total snow accumulations
  of up to two inches. Winds gusting as high as 40 mph. Localized
  whiteout conditions possible in exposed locations.

* WHERE...Door County.

* WHEN...From 6 PM this evening to 6 AM CST Sunday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing
  snow could significantly reduce visibility. Gusty winds could
  bring down tree branches, resulting in localized power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

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

&&

$$
193 
WWUS43 KGRB 111810
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
1210 PM CST Sat Jan 11 2020

...WINTER WEATHER WILL IMPACT TRAVEL THIS WEEKEND...

.Another round of snow will arrive late this afternoon and early
evening, bringing total snowfall accumulations of 2 to 5 inches, 
heaviest along the lakeshore. Along with the snowfall, 
considerable blowing and drifting snow will occur, especially from
the Fox Valley to the lakeshore counties. The worst conditions 
will occur along the lakeshore areas, where the highest snowfall 
totals are expected, and north to northeast winds will gust to 35
to 40 mph. Travel conditions will be significantly impacted.

WIZ040-050-120215-
/O.CON.KGRB.WS.W.0001.200111T2100Z-200112T1200Z/
Kewaunee-Manitowoc-
Including the cities of Kewaunee, Luxemburg, Manitowoc, 
and Two Rivers
1210 PM CST Sat Jan 11 2020

...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 6 AM CST SUNDAY...

* WHAT...Heavy snow and blowing snow expected. Total snow 
  accumulations of 2 to 5 inches with locally higher totals 
  possible. Winds gusting as high as 40 mph.

* WHERE...Kewaunee and Manitowoc County.

* WHEN...From 3 PM this afternoon to 6 AM CST Sunday.

* IMPACTS...Travel could be very difficult. Areas of blowing and
  drifting snow could significantly reduce visibility. Gusty 
  winds could bring down tree branches, resulting in localized 
  power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

WIZ039-048-049-120215-
/O.CON.KGRB.WW.Y.0004.200111T2100Z-200112T1200Z/
Brown-Winnebago-Calumet-
Including the cities of Green Bay, Oshkosh, Neenah, Menasha, 
Chilton, Brillion, and New Holstein
1210 PM CST Sat Jan 11 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 6 AM CST SUNDAY...

* WHAT...Snow and blowing snow expected. Total snow 
  accumulations of up to two inches. Winds gusting as high as 35 
  mph.

* WHERE...Winnebago, Calumet, and Brown County.

* WHEN...From 3 PM this afternoon to 6 AM CST Sunday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing and
  drifting snow could significantly reduce visibility. Gusty 
  winds could bring down tree branches, resulting in localized 
  power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

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

&&

$$

WIZ022-120215-
/O.CON.KGRB.WW.Y.0004.200112T0000Z-200112T1200Z/
Door-
Including the cities of Sturgeon Bay, Fish Creek, and Sister Bay
1210 PM CST Sat Jan 11 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO 6 AM CST SUNDAY...

* WHAT...Snow and blowing snow expected. Total snow accumulations
  of up to two inches. Winds gusting as high as 40 mph.

* WHERE...Door County.

* WHEN...From 6 PM this evening to 6 AM CST Sunday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing and
  drifting snow could significantly reduce visibility. Gusty 
  winds could bring down tree branches, resulting in localized 
  power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

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

&&

$$
282 
WWUS43 KGRB 112014
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
214 PM CST Sat Jan 11 2020

...WINTER WEATHER WILL IMPACT TRAVEL THIS EVENING AND OVERNIGHT...

.Snow will arrive early this evening, bringing total snowfall 
accumulations of 1 to 4 inches southeast of a line from
Washington Island to Oshkosh. The heaviest snowfall is expected in
Manitowoc County. Along with the snowfall, blowing and drifting 
snow is likely, especially along lakeshore counties due to north 
to northeast winds gusting up to 40 mph. Travel conditions will be
significantly impacted along the lakeshore.

WIZ040-120400-
/O.CAN.KGRB.WS.W.0001.200111T2100Z-200112T1200Z/
/O.EXB.KGRB.WW.Y.0004.200112T0000Z-200112T1200Z/
Kewaunee-
Including the cities of Kewaunee and Luxemburg
214 PM CST Sat Jan 11 2020

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO
6 AM CST SUNDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow expected. Total snow accumulations of up to two 
  inches. Winds gusting as high as 35 mph.

* WHERE...Kewaunee County.

* WHEN...From 6 PM this evening to 6 AM CST Sunday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing and
  drifting snow could significantly reduce visibility. Gusty winds
  could bring down tree branches, resulting in localized power
  outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

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

&&

$$

WIZ039-048-112115-
/O.CAN.KGRB.WW.Y.0004.200111T2100Z-200112T1200Z/
Brown-Winnebago-
Including the cities of Green Bay, Oshkosh, Neenah, and Menasha
214 PM CST Sat Jan 11 2020

...WINTER WEATHER ADVISORY IS CANCELLED...

The storm system has shifted further east, which will allow for
only minor snowfall accumulations.


$$

WIZ022-112115-
/O.CAN.KGRB.WW.Y.0004.200112T0000Z-200112T1200Z/
Door-
Including the cities of Sturgeon Bay, Fish Creek, and Sister Bay
214 PM CST Sat Jan 11 2020

...WINTER WEATHER ADVISORY IS CANCELLED...

The storm system has shifted further east, which will allow for
only minor snowfall accumulations.

$$

WIZ050-120400-
/O.EXT.KGRB.WS.W.0001.200112T0000Z-200112T1200Z/
Manitowoc-
Including the cities of Manitowoc and Two Rivers
214 PM CST Sat Jan 11 2020

...WINTER STORM WARNING NOW IN EFFECT FROM 6 PM THIS EVENING TO
6 AM CST SUNDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 2 to 4
  inches with locally higher totals possible. Winds gusting as 
  high as 40 mph.

* WHERE...Manitowoc County.

* WHEN...From 6 PM this evening to 6 AM CST Sunday.

* IMPACTS...Travel could be very difficult. Areas of blowing and
  drifting snow could significantly reduce visibility. Gusty winds
  could bring down tree branches, resulting in localized power
  outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

WIZ049-120400-
/O.EXT.KGRB.WW.Y.0004.200112T0000Z-200112T1200Z/
Calumet-
Including the cities of Chilton, Brillion, and New Holstein
214 PM CST Sat Jan 11 2020

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 6 PM THIS EVENING
TO 6 AM CST SUNDAY...

* WHAT...Snow expected. Total snow accumulations of up to two 
  inches. Winds gusting as high as 35 mph.

* WHERE...Calumet County.

* WHEN...From 6 PM this evening to 6 AM CST Sunday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing and
  drifting snow could significantly reduce visibility. Gusty winds
  could bring down tree branches, resulting in localized power
  outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

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

&&

$$
835 
WWUS43 KGRB 112152 AAA
WSWGRB

URGENT - WINTER WEATHER MESSAGE...UPDATED
National Weather Service Green Bay WI
352 PM CST Sat Jan 11 2020

...WINTER WEATHER WILL IMPACT TRAVEL THIS EVENING AND OVERNIGHT...

.Snow will arrive early this evening, bringing total snowfall
accumulations of 1 to 4 inches south and east of a line from
Sturgeon Bay to Oshkosh. The heaviest snowfall is expected in 
Manitowoc County. Along with the snowfall, blowing and drifting 
snow is likely, especially along lakeshore counties due to north 
to northeast winds gusting up to 40 mph. Travel conditions will be
significantly impacted along the lakeshore.

WIZ050-120400-
/O.CON.KGRB.WS.W.0001.200112T0000Z-200112T1200Z/
Manitowoc-
Including the cities of Manitowoc and Two Rivers
352 PM CST Sat Jan 11 2020

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM CST SUNDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 2 to 4 
  inches with locally higher totals possible. Winds gusting as 
  high as 40 mph.

* WHERE...Manitowoc County.

* WHEN...From 6 PM this evening to 6 AM CST Sunday.

* IMPACTS...Travel could be very difficult. Areas of blowing and 
  drifting snow could significantly reduce visibility. Gusty 
  winds could bring down tree branches, resulting in localized 
  power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

WIZ040-049-120400-
/O.CON.KGRB.WW.Y.0004.200112T0000Z-200112T1200Z/
Kewaunee-Calumet-
Including the cities of Kewaunee, Luxemburg, Chilton, Brillion, 
and New Holstein
352 PM CST Sat Jan 11 2020

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST
SUNDAY...

* WHAT...Snow expected. Total snow accumulations of up to two 
  inches. Winds gusting as high as 35 mph.

* WHERE...Kewaunee County.

* WHEN...From 6 PM this evening to 6 AM CST Sunday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing 
  and drifting snow could significantly reduce visibility. Gusty 
  winds could bring down tree branches, resulting in localized 
  power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

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

&&

$$
917 
WWUS43 KGRB 120351
WSWGRB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Green Bay WI
951 PM CST Sat Jan 11 2020

...LIGHT TO MODERATE SNOW HAS COME TO AN END THIS EVENING...

.The heaviest snow has come to an end across east-central
Wisconsin. Therefore the current headlines will be cancelled. Some
blowing and drifting snow is still possible during the overnight
hours.

WIZ050-120500-
/O.CAN.KGRB.WS.W.0001.000000T0000Z-200112T1200Z/
Manitowoc-
Including the cities of Manitowoc and Two Rivers
951 PM CST Sat Jan 11 2020

...WINTER STORM WARNING IS CANCELLED...

Light to moderate snow has come to an end, therefore the Winter
Storm Warning has been cancelled. Gusty winds may still cause 
some blowing and drifting snow during the overnight hours.

$$

WIZ040-049-120500-
/O.CAN.KGRB.WW.Y.0004.000000T0000Z-200112T1200Z/
Kewaunee-Calumet-
Including the cities of Kewaunee, Luxemburg, Chilton, Brillion, 
and New Holstein
951 PM CST Sat Jan 11 2020

...WINTER WEATHER ADVISORY IS CANCELLED...

Light snow has come to an end, therefore the Winter Weather
Advisory has been cancelled. Gusty winds may still cause some 
blowing and drifting snow during the overnight hours.

$$

Kurimski

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 Green Bay, WI wrote its last area forecast discussion before this winter storm warning went out at Jan 10, 11:49 AM CST, 3 hours 27 minutes earlier.

Area forecast discussion, Jan 10, 11:49 AM CST, 3 hours 27 minutes before
Area Forecast Discussion
National Weather Service Green Bay WI
1149 AM CST Fri Jan 10 2020

Updated aviation portion for 18Z TAF issuance

.SHORT TERM...Today...Tonight...and Saturday
Issued at 402 AM CST Fri Jan 10 2020

The main concerns for the short-term portion of the forecast will be
the potential for light snow and blowing snow tonight into early
Saturday morning. Heavier snow and blowing snow may develop yet
again late Saturday afternoon, but confidence in the final low trek
is lower with this update.

Today: As a broad low pressure system meanders across eastern
Ontario and western Quebec, another low pressure system is expected
to develop across the Panhandle of Texas. Ahead of the low, a fairly
strong south to southwest LLJ is forecast to develop across much of
the the lower and mid-Mississippi Valley. This will effectively help
to rapidly transport moisture northward, toward southern Wisconsin.
As this happens, the Plains surface low is expected to lift
northeastward as it elongates along the aforementioned, nearly
stationary, frontal boundary. This would lead to steadily
increasing/thickening cloud cover across central into east-central
WI. Models aren't really painting out much QPF across the area
through much of the day. Most of it remains south of the front.
Otherwise, high temperatures are expected to range from the low to
mid 20s over central/north-central WI to the mid 30s elsewhere.

Tonight: The aforementioned surface low is expected to lift
northeastward along the front, into lower to mid-Mississippi Valley.
At the same time, a surface ridge is expected to build across the
northern Plains. Convergent flow between these features along with
fairly strong 850-700 mb FGEN banding, to the northwest of a
stationary surface front, is expected to pass through the east-
central and far northeast portions of Wisconsin. Additional support
will be provided by a strong upper-level jet positioned to the north
of the area. This places much of northern WI in the favorable right-
entrance region of the jet, which is indicative of upward vertical
motion and rapid evacuation of mass through the column. The
combination of these features along with fairly deep moisture
lifting northward into the area, will lead to a band of light to
moderate snow across portions of east-central and far northeast WI.
Generally looking at 1 to 3 inches of snow in those areas, heaviest
from the Door Peninsula through much of the Fox Valley. To the
northwest of those locations, accumulations are expected to be
significantly lighter, as they remain closer to the influence of the
drier surface ridge and are farther away from the FGEN banding. The
pressure gradient will begin to increase across the area overnight,
which may lead to some blowing and drifting snow, especially for
unsheltered locations and locations close to Lake Michigan.
Overnight lows are expected to range from the single digits
above zero north-central to the teens elsewhere.

Saturday: The intensifying low pressure system is expected to lift
northward along the nearly stationary frontal boundary through
Saturday afternoon. There may be some lingering snow showers close
to the front, over the Fox Valley during the morning hours, but the
better chance of heavier snow will develop toward the late afternoon
hours. This will be as the surface low lifts northward through the
mid-Mississippi Valley. At the same time, a vort max is expected to
round the base of the upper-level trough as it lifts toward northern
Illinois. Moisture will steadily increase/deepen into the late
afternoon hours, allowing for moderate snowfall to lift into east-
central portions of Wisconsin. Winds will also become gusty as the
pressure gradient tightens across the area. There are some model
differences with the final storm trek, with the EC/Canadian/GFS
taking the low farther east than previous runs, which would reduce
the totals across the CWA. The NAM remains farther west, brining a
much heavier swath of snow across the east-central portions of
Wisconsin. The farther east movement in the low center, reduces the
confidence a bit in the highest snowfall totals, but it doesn't
reduce it enough to change the current Winter Storm Watch that is in
effect. Even if the snow totals are a bit lower, the combination of
falling snow and blowing snow would lead to some impacts, including
lower visibilities and the potential for some lake shore flooding
and ice shoves. At this point, will continue the Winter Storm Watch
and see if later models come into better agreement with the
afternoon update.

.LONG TERM...Saturday Night Through Thursday
Issued at 402 AM CST Fri Jan 10 2020

Active weather pattern continues in the extended forecast as
southwest flow brings several rounds of snow across the forecast
area. Main focus is on the system early Sunday, as there is still
much uncertainty.

From 00Z-12Z Sunday, a surface low is generally expected to track
across the southern Great Lake/Ohio Valley area, but where this
system will track remains uncertain. The latest (00Z) ECMWF took a
jog to the east (after a few runs trending W), the GFS is still
trending east, and the Canadian is now so far east much of the
forecast area is dry, especially west of the Fox River. The NAM
is similar to the GFS/EC solutions. Therefore, sticking with a
blend close to the GFS/EC which features high PoPs across the Fox
Valley and east- central WI, and chance PoPs once getting into
north- central Wisconsin. However, QPF for this wave of precip
(which would begin a couple hours before 00Z) is lower than the
previous forecast, ranging from about 0.10 inches in the north to
0.40 inches along the lakeshore. As a result, snowfall totals are
lower than the previous forecast, ranging from 1 to 3 inches in
north- central Wisconsin to 6 to 7 inches in east- central
Wisconsin. Amounts may be a little high near the lake shore where
some lake enhancement is possible. Overall, confidence in these
amounts is low.

The other element to keep in mind during this time is the wind
speeds. Northeast winds will be gusting to around 30 to 40, which
would easily creating blowing and drifting snow, especially
across the Fox Valley and east- central WI. Additionally, the
strong NE winds could create ice shoves or lakeshore flood. See
the Hazardous Weather Outlook (HWO) for additional info.

With all that said, models do agree this system will pull far
enough east Sunday morning and snow will come to an end. Expect
dry conditions through the rest of the morning and afternoon, and
then another shortwave approaches from the southwest. This would
bring another shot of snow Sunday night. Snow amounts look lighter
with this quick moving system.

For the rest of the week, expect active weather with several waves
to move up from the southwest. Right now, Tuesday and Thursday
appear to be the target days, but with so much waffling in the
models confidence is low. Stuck with a blended model forecast.

Temperatures will be near or a little above normal through at
least Tuesday or Wednesday. There are some indications of cooler
temps for the second half of the week, but models disagree on this
as well.
&&

.AVIATION...for 18Z TAF Issuance
Issued at 1143 AM CST Fri Jan 10 2020

Patches of MVFR stratus were eroding across the region at midday,
and high clouds were increasing ahead of the next system. This
system will bring a brief period of light snow to the eastern TAF
sites starting late this evening, and continuing into the
overnight hours. Will likely see VSBYs in the IFR category. Strong
winds will affect the Fox Valley and lakeshore areas tonight into
Saturday, with NNE wind gusting to around 30 kts. Farther west,
surface winds will not be as strong, but increasing winds aloft
may bring a period of LLWS Saturday morning.

&&

.GRB WATCHES/WARNINGS/ADVISORIES...
Winter Storm Watch from Saturday afternoon through late Saturday
night for WIZ013-020>022-031-037>040-045-048>050-073-074.
&&

SHORT TERM.....Cooley
LONG TERM......KLJ
AVIATION.......Kieckbusch
Hazardous weather outlook, Jan 10, 9:47 AM CST, 5 hours 29 minutes before
Hazardous Weather Outlook
National Weather Service Green Bay WI
947 AM CST Fri Jan 10 2020

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-111600-
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-
947 AM CST Fri Jan 10 2020

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

.DAY ONE...This Afternoon and Tonight

Light to moderate snow is expected to develop tonight across
portions of the Fox Valley and lakeshore areas. Snowfall
accumulations are expected to be in the 1 to 3 inch range, which
will likely lead to snow covered and slippery roads. Some blowing
snow may cause reduced visibilities overnight.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Another round of snow is likely late Saturday afternoon through
early Sunday morning, however there is still uncertainty on the
storm track and snowfall amounts. This storm will have the
potential to produce snow amounts of 6 inches or more along with
blowing snow, especially across east-central Wisconsin. In
addition, gusty northeast to north winds will increase the
potential for ice shoves, lakeshore and bayshore flooding, and
shoreline erosion.

Additional chances for light accumulating snow will occur at times
from Sunday night into the middle of next week.

.SPOTTER INFORMATION STATEMENT...

Spotters are requested to forward snowfall measurements to the
National Weather Service in Green Bay.

LMZ521-522-541>543-111600-
The Bay of Green Bay south of a line from Cedar River MI to Rock
Island Passage-Lake Michigan from Washington Island to Sheboygan-
947 AM CST Fri Jan 10 2020

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

.DAY ONE...This Afternoon and Tonight

North winds may gust to near gale force late tonight.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Northeast to north gales to 40 knots will be possible Saturday
and Saturday night.

Kieckbusch

In the hours before

Special weather statement, Jan 10, 9:42 AM CST, 5 hours 34 minutes before
Special Weather Statement
National Weather Service Green Bay WI
942 AM CST Fri Jan 10 2020

WIZ022-037>040-045-048>050-102200-
Door-Waupaca-Outagamie-Brown-Kewaunee-Waushara-Winnebago-Calumet-
Manitowoc-
942 AM CST Fri Jan 10 2020

...SNOW AND BLOWING SNOW EXPECTED TONIGHT...

Light to moderate snow is expected to develop this evening and
then linger through much of tonight. Snowfall totals are generally
expected to be in the 1 to 3 inch range from the Fox Valley to
the lakeshore. In addition, winds may gust as high as 30 mph late
tonight, which will likely lead to reduced visibilities at times.

Please allow extra time to reach your destination if traveling
tonight and be alert for rapidly changing road conditions.

Kieckbusch

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 10, 3:40 AM CSTGale WatchGRB7 hr
Jan 10, 10:56 AM CSTGale WarningGRB40 hr
Jan 10, 3:16 PM CSTWinter Weather AdvisoryGRBCalumet, Manitowoc15 hr
Jan 10, 3:16 PM CSTWinter Weather AdvisoryGRBMarinette, Menominee, Oconto, Shawano, Waupaca, Waushara11 hr
Jan 10, 3:26 PM CSTLakeshore Flood AdvisoryGRBBrown, Door, Kewaunee, Manitowoc, Marinette, Oconto29 hr

Nearby

Winter Storm Warnings in Wisconsin, 2020Every winter storm warning in 2020

Sources

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