Alert archive / Minnesota / Winter Storm Warnings in 2017

Winter Storm Warning 9, NWS Duluth, MN

December 4, 20178 counties in Minnesota

NWS Duluth, MN issued this winter storm warning at Dec 4, 2017, 3:22 AM CST for 8 counties in Minnesota. It took effect at Dec 4, 2017, 9:00 AM CST. It was in force for 14 hr. 1 report 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
Dec 4, 2017, 3:22 AM CST (09:22 UTC)
In effect from
Dec 4, 2017, 9:00 AM CST
Expired
Dec 4, 2017, 11:23 PM CST
In force
14 hr
Issued by
NWS Duluth, MN

Counties Aitkin County, MN, Cass County, MN, Cook County, MN, Crow Wing County, MN, Itasca County, MN, Koochiching County, MN, Lake County, MN, Saint Louis County, MN

The radar

The Duluth radar (KDLH), 79 km from the middle of the area, began a volume at 09:23 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
Dec 4, 8:48 PM CSTSNOW 15 N Virginia, MN

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

The nearest sounding before it

International Fa, MN (KINL), launched 00:00Z, 9.4 hours before the alert went out and 139 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, International Fa, MN at 00:00Z on 2017-12-04Temperature 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, International Fa, MN at 00:00Z on 2017-12-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 93 square meters per square second.1939587897117Sfc1 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
1544 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
93 m²/s²
0-3 km storm-relative helicity
140 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

669 
WWUS43 KDLH 040922
WSWDLH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Duluth MN
322 AM CST Mon Dec 4 2017

...WINTER STORM TO BRING HEAVY SNOW AND NEAR-BLIZZARD CONDITIONS
TO PARTS OF THE NORTHLAND MONDAY THROUGH TUESDAY MORNING...

.Weather conditions will become dangerous this afternoon in parts
of northern Minnesota from International Falls through Walker, 
and the Brainerd lakes area. Rain will turn to snow, temperatures
will fall and winds will becoming very strong. All these factors 
will result in near blizzard conditions and possibly icy roads. 
These dangerous winter conditions will overtake the Arrowhead 
region on northeastern Minnesota later this evening. The Aitkin 
area, the Twin Ports, Pine City and far northwestern Wisconsin 
will get snow and wind also in the evening. The rest of Wisconsin 
will see the changeover from rain to snow later tonight with gusty
winds. 

Temperatures will drop when a strong cold front moves through the
region. Wet roads could freeze and become ice, then be covered
with snow. 

MNZ010-042130-
/O.UPG.KDLH.WS.A.0009.171204T1800Z-171205T1800Z/
/O.NEW.KDLH.WS.W.0009.171204T1500Z-171205T1800Z/
Koochiching-
Including the city of International Falls
322 AM CST Mon Dec 4 2017

...WINTER STORM WARNING IN EFFECT FROM 9 AM THIS MORNING TO NOON
CST TUESDAY...

* WHAT...Heavy snow expected. Plan on difficult travel 
  conditions. Total snow accumulations of 6 to 8 inches, with 
  localized amounts up to 10 inches, are expected.

* WHERE...Koochiching County.

* WHEN...From 9 AM this morning to noon CST Tuesday.

* ADDITIONAL DETAILS...Be prepared for significant and dangerous
  reductions in visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for Minnesota can be
obtained by calling 511 in state, or 1-800-542-0220. For
Wisconsin, call 511 in state, or 1-866-511-9472

$$

MNZ018-042130-
/O.UPG.KDLH.WS.A.0009.171204T1800Z-171205T1800Z/
/O.NEW.KDLH.WS.W.0009.171204T1800Z-171205T1200Z/
North Itasca-
Including the city of Bigfork
322 AM CST Mon Dec 4 2017

...WINTER STORM WARNING IN EFFECT FROM NOON TODAY TO 6 AM CST
TUESDAY...

* WHAT...Heavy snow expected. Plan on difficult travel conditions.
  Total snow accumulations of 3 to 5 inches are expected near
  blizzard conditions in blowing snow. 

* WHERE...North Itasca County.

* WHEN...From noon today to 6 AM CST Tuesday.

* ADDITIONAL DETAILS...Be prepared for significant and dangerous reductions
  in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for Minnesota can be
obtained by calling 511 in state, or 1-800-542-0220. For
Wisconsin, call 511 in state, or 1-866-511-9472

$$

MNZ025-026-033>035-042130-
/O.UPG.KDLH.WS.A.0009.171204T1800Z-171205T0600Z/
/O.NEW.KDLH.WS.W.0009.171204T1800Z-171205T1200Z/
North Cass-South Itasca-South Cass-Crow Wing-Northern Aitkin-
Including the cities of Walker, Grand Rapids, Pine River, 
Brainerd, and Hill City
322 AM CST Mon Dec 4 2017

...WINTER STORM WARNING IN EFFECT FROM NOON TODAY TO 6 AM CST
TUESDAY...

* WHAT...Heavy snow expected. Plan on difficult travel conditions.
  Tree branches could fall as well. Total snow accumulations of 3
  to 5 inches are expected with blowing snow and near blizzard
  conditions at times. 

* WHERE...North Cass, South Itasca, South Cass, Crow Wing and 
  Northern Aitkin Counties.

* WHEN...From noon today to 6 AM CST Tuesday.

* ADDITIONAL DETAILS...Be prepared for significant and dangerous reductions
  in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for Minnesota can be
obtained by calling 511 in state, or 1-800-542-0220. For
Wisconsin, call 511 in state, or 1-866-511-9472

$$

MNZ011-012-019-042130-
/O.UPG.KDLH.WS.A.0009.171205T0000Z-171205T1800Z/
/O.NEW.KDLH.WS.W.0009.171205T0000Z-171205T1800Z/
North St. Louis-Northern Cook/Northern Lake-Central St. Louis-
Including the cities of Ely, Isabella, and Hibbing
322 AM CST Mon Dec 4 2017

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO NOON
CST TUESDAY...

* WHAT...Heavy snow expected. Plan on difficult travel 
  conditions. Total snow accumulations of 3 to 5 inches are 
  expected.

* WHERE...North St. Louis, Northern Cook/Northern Lake and 
  Central St. Louis Counties.

* WHEN...From 6 PM this evening to noon CST Tuesday.

* ADDITIONAL DETAILS...Be prepared for significant and dangerous reductions
  in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for Minnesota can be
obtained by calling 511 in state, or 1-800-542-0220. For
Wisconsin, call 511 in state, or 1-866-511-9472

$$

MNZ020-021-042130-
/O.NEW.KDLH.WS.W.0009.171205T0000Z-171205T1800Z/
Southern Lake/North Shore-Southern Cook/North Shore-
Including the cities of Two Harbors, Silver Bay, and Grand Marais
322 AM CST Mon Dec 4 2017

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO NOON
CST TUESDAY...

* WHAT...Heavy snow expected. Plan on difficult travel 
  conditions, including during the morning commute on Tuesday. 
  Total snow accumulations of 3 to 5 inches are expected.

* WHERE...Southern Lake/North Shore and Southern Cook/North 
  Shore Counties.

* WHEN...From 6 PM this evening to noon CST Tuesday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for Minnesota can be
obtained by calling 511 in state, or 1-800-542-0220. For
Wisconsin, call 511 in state, or 1-866-511-9472

$$

MNZ036-042130-
/O.UPG.KDLH.WS.A.0009.171204T1800Z-171205T0600Z/
/O.NEW.KDLH.WW.Y.0029.171205T0000Z-171205T1800Z/
South Aitkin-
Including the city of Aitkin
322 AM CST Mon Dec 4 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO
NOON CST TUESDAY...

* WHAT...Snow expected. Plan on slippery road conditions. Total 
  snow accumulations of 1 to 3 inches are expected.

* WHERE...South Aitkin County.

* WHEN...From 6 PM this evening to noon CST Tuesday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
  times in blowing snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for Minnesota can be obtained by
calling 511 in state, or 1-800-542-0220. For Wisconsin, call
511 in state, or 1-866-511-9472

$$

MNZ037-038-WIZ001-006-007-042130-
/O.NEW.KDLH.WW.Y.0029.171205T0000Z-171205T1800Z/
Carlton/South St. Louis-Pine-Douglas-Burnett-Washburn-
Including the cities of Duluth, Pine City, Hinckley, Superior, 
Grantsburg, and Spooner
322 AM CST Mon Dec 4 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO
NOON CST TUESDAY...

* WHAT...Snow expected. Plan on slippery road conditions. Total 
  snow accumulations of 1 to 3 inches are expected.

* WHERE...In Wisconsin, Douglas, Burnett and Washburn Counties. 
  In Minnesota, Carlton/South St. Louis and Pine Counties.

* WHEN...From 6 PM this evening to noon CST Tuesday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
  times in blowing snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for Minnesota can be obtained by
calling 511 in state, or 1-800-542-0220. For Wisconsin, call
511 in state, or 1-866-511-9472

$$

For more information from the National Weather Service visit
http://weather.gov/Duluth
4 follow-up statements
676 
WWUS43 KDLH 041511 AAB
WSWDLH

URGENT - WINTER WEATHER MESSAGE...UPDATED
National Weather Service Duluth MN
911 AM CST Mon Dec 4 2017

...WINTER STORM TO BRING HEAVY SNOW AND NEAR-BLIZZARD CONDITIONS
TO PARTS OF THE NORTHLAND MONDAY THROUGH TUESDAY MORNING...

.Winter weather conditions will become dangerous this afternoon 
in parts of northern Minnesota from International Falls through 
Walker, and the Brainerd lakes area. Rain will rapidly change to 
snow, temperatures will rapidly fall into the teens and 20s, and
winds will become northwest and increase drastically. All these 
factors will result in near blizzard conditions in open areas and
near lakes, and roads rapidly becoming snow and ice covered. 
These dangerous winter conditions will then rapidly spread 
eastward across the remainder of northeast Minnesota between 3 and
9 PM this evening, with roads rapidly becoming snow and ice 
covered. Rain will change to snow before ending across northwest 
Wisconsin overnight.

MNZ010-050315-
/O.CAN.KDLH.WS.W.0009.000000T0000Z-171205T1800Z/
/O.NEW.KDLH.WS.W.0010.171204T1800Z-171205T1800Z/
Koochiching-
Including the city of International Falls
911 AM CST Mon Dec 4 2017

...WINTER STORM WARNING NOW IN EFFECT FROM NOON TODAY TO NOON CST
TUESDAY...

* WHAT...Heavy snow expected. Plan on difficult travel conditions.
  Total snow accumulations of 6 to 8 inches are expected.

* WHERE...Koochiching County.

* WHEN...From noon today to noon CST Tuesday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in
  visibility at times, and snow and ice covered roads by mid
  afternoon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for Minnesota can be
obtained by calling 511 in state, or 1-800-542-0220. For
Wisconsin, call 511 in state, or 1-866-511-9472

$$

MNZ018-025-026-033>035-050315-
/O.CON.KDLH.WS.W.0009.171204T1800Z-171205T1200Z/
North Itasca-North Cass-South Itasca-South Cass-Crow Wing-
Northern Aitkin-
Including the cities of Bigfork, Walker, Grand Rapids, 
Pine River, Brainerd, and Hill City
911 AM CST Mon Dec 4 2017

...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON TODAY TO 6 AM
CST TUESDAY...

* WHAT...Heavy snow expected. Plan on difficult travel conditions.
  Tree branches could fall as well. Total snow accumulations of 3
  to 5 inches, with localized greater than 6 inches, are 
  expected.

* WHERE...Portions of east central and north central Minnesota.

* WHEN...From noon today to 6 AM CST Tuesday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times, and snow and ice covered roads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for Minnesota can be
obtained by calling 511 in state, or 1-800-542-0220. For
Wisconsin, call 511 in state, or 1-866-511-9472

$$

MNZ011-012-019>021-050315-
/O.CON.KDLH.WS.W.0009.171205T0000Z-171205T1800Z/
North St. Louis-Northern Cook/Northern Lake-Central St. Louis-
Southern Lake/North Shore-Southern Cook/North Shore-
Including the cities of Ely, Isabella, Hibbing, Two Harbors, 
Silver Bay, and Grand Marais
911 AM CST Mon Dec 4 2017

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO NOON CST TUESDAY...

* WHAT...Heavy snow and strong expected. Plan on difficult travel
  conditions. Total snow accumulations of 3 to 5 inches, with 
  localized amounts greater than 6 inches, are expected.

* WHERE...North St. Louis, Northern Cook/Northern Lake, Central 
  St. Louis, Southern Lake/North Shore and Southern Cook/North 
  Shore Counties.
1 to 3 i
* WHEN...From 6 PM this evening to noon CST Tuesday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in
  visibility at times, and snow and ice covered roads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for Minnesota can be
obtained by calling 511 in state, or 1-800-542-0220. For
Wisconsin, call 511 in state, or 1-866-511-9472

$$

MNZ036>038-WIZ001-006-007-050315-
/O.CON.KDLH.WW.Y.0029.171205T0000Z-171205T1800Z/
South Aitkin-Carlton/South St. Louis-Pine-Douglas-Burnett-
Washburn-
Including the cities of Aitkin, Duluth, Pine City, Hinckley, 
Superior, Grantsburg, and Spooner
911 AM CST Mon Dec 4 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO NOON CST TUESDAY...

* WHAT...Snow expected. Plan on slippery road conditions. Total
  snow accumulations of 2 to 5 inches are expected.

* WHERE...Portions of northwest Wisconsin and east central and 
  northeast Minnesota.

* WHEN...From 6 PM this evening to noon CST Tuesday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times, and snow and ice covered roads developing this evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for Minnesota can be obtained by
calling 511 in state, or 1-800-542-0220. For Wisconsin, call
511 in state, or 1-866-511-9472

$$

For more information from the National Weather Service visit
http://weather.gov/Duluth
177 
WWUS43 KDLH 042125 AAC
WSWDLH

URGENT - WINTER WEATHER MESSAGE...UPDATED
National Weather Service Duluth MN
325 PM CST Mon Dec 4 2017

...WINTER STORM TO BRING HEAVY SNOW AND NEAR-BLIZZARD CONDITIONS
TO PARTS OF THE NORTHLAND TONIGHT THROUGH TUESDAY MORNING...

.A major winter storm will affect all of the Northland tonight and
Tuesday morning. Rain will rapidly change to snow from west to
east this evening with temperatures rapidly falling into the 
teens above zero, and winds become northwest and increase to 25 to
40 mph with higher gusts. All these factors will result in near 
blizzard conditions in open areas and near inland lakes, and roads
rapidly becoming snow and ice covered. These winter storm 
conditions will then rapidly spread eastward across the remainder 
of northeast Minnesota through roughly 10 PM this evening. Rain 
will change to snow before ending across northwest Wisconsin 
overnight. Light snow and windy conditions will persist in many 
areas for much of the day Tuesday, before diminishing Tuesday 
afternoon and evening.

MNZ010-050930-
/O.CON.KDLH.WS.W.0010.000000T0000Z-171205T1800Z/
Koochiching-
Including the city of International Falls
325 PM CST Mon Dec 4 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST
TUESDAY...

* WHAT...Heavy snow occurring. Snow accumulations of 7 to 12
  inches expected, with strong northwest winds gusting up to 35
  mph tonight. Plan on difficult travel conditions.

* WHERE...Koochiching County.

* WHEN...Until noon CST Tuesday.

* ADDITIONAL DETAILS...Be prepared for snow and ice covered roads,
  and significant reductions in visibility at times. Heavy wet
  snow will also accumulate on trees and power lines, and could
  result in some power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. Slow down and allow plenty of extra time to reach your
destination. Watch out for downed tree limbs when driving tonight
and Tuesday, and avoid parking vehicles under trees. The latest 
road conditions for Minnesota can be obtained by calling 511 in 
state, or 1-800-542-0220. For Wisconsin, call 511 in state, or 
1-866-511-9472.

$$

MNZ018-025-026-033>035-050930-
/O.CON.KDLH.WS.W.0009.000000T0000Z-171205T1200Z/
North Itasca-North Cass-South Itasca-South Cass-Crow Wing-
Northern Aitkin-
Including the cities of Bigfork, Walker, Grand Rapids, 
Pine River, Brainerd, and Hill City
325 PM CST Mon Dec 4 2017

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

* WHAT...Heavy snow expected. Snow accumulations of 4 to 7 inches,
  with localized amounts up to 9 inches, along with strong 
  northwest winds gusting up to 40 mph later tonight. Plan on 
  difficult travel conditions.

* WHERE...Portions of central and north central Minnesota.

* WHEN...Until 6 AM CST Tuesday.

* ADDITIONAL DETAILS...Be prepared for snow and ice covered roads,
  and significant reductions in visibility at times. Heavy wet
  snow will also accumulate on trees and power lines, and could
  result in some power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. Slow down and allow plenty of extra time to reach your
destination. Watch out for downed tree limbs when driving tonight
and Tuesday, and avoid parking vehicles under trees. The latest 
road conditions for Minnesota can be obtained by calling 511 in 
state, or 1-800-542-0220. For Wisconsin, call 511 in state, or 
1-866-511-9472.

$$

MNZ011-012-019>021-050930-
/O.CON.KDLH.WS.W.0009.171205T0000Z-171205T1800Z/
North St. Louis-Northern Cook/Northern Lake-Central St. Louis-
Southern Lake/North Shore-Southern Cook/North Shore-
Including the cities of Ely, Isabella, Hibbing, Two Harbors, 
Silver Bay, and Grand Marais
325 PM CST Mon Dec 4 2017

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO NOON CST TUESDAY...

* WHAT...Heavy snow expected. Snow accumulations of 4 to 7 inches,
  with localized amounts up to 9 inches, along with strong
  northwest winds gusting up to 40 mph later tonight. Plan on
  difficult travel conditions.

* WHERE...Much of northeast Minnesota, including the Arrowhead and
  the Iron Range.

* WHEN...From 6 PM this evening to noon CST Tuesday.

* ADDITIONAL DETAILS...Be prepared for snow and ice covered roads,
  and significant reductions in visibility at times. Heavy wet
  snow will also accumulate on trees and power lines, and could
  result in some power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. Slow down and allow plenty of extra time to reach your
destination. Watch out for downed tree limbs when driving tonight
and Tuesday, and avoid parking vehicles under trees. The latest 
road conditions for Minnesota can be obtained by calling 511 in 
state, or 1-800-542-0220. For Wisconsin, call 511 in state, or 
1-866-511-9472.

$$

WIZ004-050930-
/O.NEW.KDLH.WW.Y.0030.171206T0600Z-171207T0000Z/
Iron-
Including the city of Hurley
325 PM CST Mon Dec 4 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TUESDAY NIGHT
TO 6 PM CST WEDNESDAY...

* WHAT...Lake effect snow showers expected. Total snow
  accumulations of 2 to 4 inches, with localized amounts up to 6
  inches, are expected. Plan on slippery road conditions, 
  including during the morning commute on Wednesday. 

* WHERE...Mainly the Gogebic Range of northern Iron County.

* WHEN...From midnight Tuesday night to 6 PM CST Wednesday.

* ADDITIONAL DETAILS...Be prepared for snow and ice covered roads,
  and significant reductions in visibility at times in the heavier
  snow showers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause travel difficulties. Be prepared for snow covered roads and
limited visibilities, and use caution while driving. The latest 
road conditions for Minnesota can be obtained by calling 511 in 
state, or 1-800-542-0220. For Wisconsin, call 511 in state, or 
1-866-511-9472.

$$

MNZ036>038-WIZ001-006-007-050930-
/O.CON.KDLH.WW.Y.0029.171205T0000Z-171205T1800Z/
South Aitkin-Carlton/South St. Louis-Pine-Douglas-Burnett-
Washburn-
Including the cities of Aitkin, Duluth, Pine City, Hinckley, 
Superior, Grantsburg, and Spooner
325 PM CST Mon Dec 4 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO NOON CST TUESDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 5 inches,
  with localized amounts up to 7 inches are expected through
  Tuesday evening, along with strong northwest winds gusting up to
  40 mph later tonight. Plan on difficult travel conditions
  overnight and Tuesday morning.

* WHERE...Portions of northwest Wisconsin and east central and
  northeast Minnesota, including interstate 35 between Pine City
  and Duluth, and the Twin Ports area.

* WHEN...From 6 PM this evening to noon CST Tuesday.

* ADDITIONAL DETAILS...Be prepared for snow and ice covered roads,
  and significant reductions in visibility at times. Heavy wet
  snow will also accumulate on trees and power lines, and could
  combine with the wind to cause power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause travel difficulties. Be prepared for snow covered roads and
limited visibilities, and use caution while driving. Watch out for 
downed tree limbs when driving tonight and Tuesday, and avoid 
parking vehicles under trees. The latest road conditions for 
Minnesota can be obtained by calling 511 in state, or 
1-800-542-0220. For Wisconsin, call 511 in state, or 
1-866-511-9472

$$

For more information from the National Weather Service visit
http://weather.gov/Duluth
002 
WWUS43 KDLH 050215
WSWDLH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Duluth MN
815 PM CST Mon Dec 4 2017

MNZ025-026-033>035-051415-
/O.CAN.KDLH.WS.W.0009.000000T0000Z-171205T1200Z/
/O.EXA.KDLH.WW.Y.0029.000000T0000Z-171205T1800Z/
North Cass-South Itasca-South Cass-Crow Wing-Northern Aitkin-
Including the cities of Walker, Grand Rapids, Pine River, 
Brainerd, and Hill City
815 PM CST Mon Dec 4 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON CST TUESDAY...
...WINTER STORM WARNING HAS BEEN REPLACED WITH A WINTER WEATHER
ADVISORY...

* WHAT...Snow occurring. Plan on slippery road conditions. Tree
  branches could fall as well. Additional snow accumulations of up
  to three inches are expected.

* WHERE...North Cass, South Itasca, South Cass, Crow Wing and 
  Northern Aitkin Counties.

* WHEN...Until noon CST Tuesday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for Minnesota can be obtained by
calling 511 in state, or 1-800-542-0220. For Wisconsin, call
511 in state, or 1-866-511-9472

$$

MNZ010-051200-
/O.EXT.KDLH.WS.W.0010.000000T0000Z-171205T1200Z/
Koochiching-
Including the city of International Falls
815 PM CST Mon Dec 4 2017

...WINTER STORM WARNING NOW IN EFFECT UNTIL 6 AM CST TUESDAY...

* WHAT...Heavy snow occurring. Plan on difficult travel 
  conditions. Additional snow accumulations of up to six inches 
  are expected.

* WHERE...Koochiching County.

* WHEN...Until 6 AM CST Tuesday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning means significant amounts of snow, sleet
and ice are occurring. This will make travel very hazardous or
impossible. The latest road conditions for Minnesota can be
obtained by calling 511 in state, or 1-800-542-0220. For
Wisconsin, call 511 in state, or 1-866-511-9472

$$

MNZ018-051200-
/O.CON.KDLH.WS.W.0009.000000T0000Z-171205T1200Z/
North Itasca-
Including the city of Bigfork
815 PM CST Mon Dec 4 2017

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

* WHAT...Heavy snow occurring. Plan on difficult travel
  conditions. Additional snow accumulations of up to three inches
  are expected.

* WHERE...North Itasca County.

* WHEN...Until 6 AM CST Tuesday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for Minnesota can be
obtained by calling 511 in state, or 1-800-542-0220. For
Wisconsin, call 511 in state, or 1-866-511-9472

$$

MNZ011-012-019>021-051415-
/O.CON.KDLH.WS.W.0009.000000T0000Z-171205T1800Z/
North St. Louis-Northern Cook/Northern Lake-Central St. Louis-
Southern Lake/North Shore-Southern Cook/North Shore-
Including the cities of Ely, Isabella, Hibbing, Two Harbors, 
Silver Bay, and Grand Marais
815 PM CST Mon Dec 4 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST
TUESDAY...

* WHAT...Heavy snow occurring. Plan on difficult travel
  conditions, including during the morning commute on Tuesday.
  Additional snow accumulations of up to four inches are 
  expected.

* WHERE...North St. Louis, Northern Cook/Northern Lake, Central 
  St. Louis, Southern Lake/North Shore and Southern Cook/North 
  Shore Counties.

* WHEN...Until noon CST Tuesday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for Minnesota can be
obtained by calling 511 in state, or 1-800-542-0220. For
Wisconsin, call 511 in state, or 1-866-511-9472

$$

WIZ004-051415-
/O.EXA.KDLH.WW.Y.0029.000000T0000Z-171205T1800Z/
/O.CON.KDLH.WW.Y.0030.171206T0600Z-171207T0000Z/
Iron-
Including the city of Hurley
815 PM CST Mon Dec 4 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON CST TUESDAY...
...WINTER WEATHER ADVISORY FOR LAKE EFFECT SNOW REMAINS IN EFFECT
FROM MIDNIGHT TUESDAY NIGHT TO 6 PM CST WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 1 to 3 inches
  along with wind gusts to 40 mph.

  Then on Wednesday, lake effect 
  snow showers expected. Total snow accumulations of 2 to 4 
  inches, with localized amounts up to 6 inches, are expected. 
  Plan on slippery road conditions, including during the morning 
  commute on Wednesday. 

* WHERE...Iron County.

* WHEN...For the Winter Weather Advisory, until noon CST 
  Tuesday. 

  For the Winter Weather Advisory, from midnight 
  Tuesday night to 6 PM CST Wednesday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for Minnesota can be obtained by
calling 511 in state, or 1-800-542-0220. For Wisconsin, call
511 in state, or 1-866-511-9472

A Winter Weather Advisory for lake effect snow means lake effect
snow is forecast that will make travel difficult in some areas.
Use caution when traveling. The latest road conditions for
Minnesota can be obtained by calling 511 in state, or 1-800-542-
0220. For Wisconsin, call 511 in state, or 1-866-511-9472

$$

WIZ002-003-008-009-051415-
/O.EXA.KDLH.WW.Y.0029.000000T0000Z-171205T1800Z/
Bayfield-Ashland-Sawyer-Price-
Including the cities of Washburn, Bayfield, Ashland, Hayward, 
and Phillips
815 PM CST Mon Dec 4 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON CST TUESDAY...

* WHAT...Snow occurring. Plan on slippery road conditions,
  including during the morning commute on Tuesday. Tree branches
  could fall as well. Additional snow accumulations of up to two
  inches are expected along with wind gusts to 40 mph.

* WHERE...Bayfield, Ashland, Sawyer and Price Counties.

* WHEN...Until noon CST Tuesday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for Minnesota can be obtained by
calling 511 in state, or 1-800-542-0220. For Wisconsin, call
511 in state, or 1-866-511-9472

$$

MNZ036>038-WIZ001-006-007-051415-
/O.CON.KDLH.WW.Y.0029.000000T0000Z-171205T1800Z/
South Aitkin-Carlton/South St. Louis-Pine-Douglas-Burnett-
Washburn-
Including the cities of Aitkin, Duluth, Pine City, Hinckley, 
Superior, Grantsburg, and Spooner
815 PM CST Mon Dec 4 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST
TUESDAY...

* WHAT...Snow occurring. Plan on slippery road conditions. Tree 
  branches could fall as well. Additional snow accumulations of 
  1 to 3 inches are expected.

* WHERE...Portions of northwest Wisconsin and east central and 
  northeast Minnesota.

* WHEN...Until noon CST Tuesday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for Minnesota can be obtained by
calling 511 in state, or 1-800-542-0220. For Wisconsin, call
511 in state, or 1-866-511-9472

$$

For more information from the National Weather Service visit
http://weather.gov/Duluth
641 
WWUS43 KDLH 050523
WSWDLH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Duluth MN
1123 PM CST Mon Dec 4 2017

MNZ011-012-019>021-050630-
/O.CAN.KDLH.WS.W.0009.000000T0000Z-171205T1800Z/
North St. Louis-Northern Cook/Northern Lake-Central St. Louis-
Southern Lake/North Shore-Southern Cook/North Shore-
Including the cities of Ely, Isabella, Hibbing, Two Harbors, 
Silver Bay, and Grand Marais
1123 PM CST Mon Dec 4 2017

...WINTER STORM WARNING IS CANCELLED...

The National Weather Service in Duluth has cancelled the Winter
Storm Warning. 

Snowfall has moved out of the area or is light in nature and does
not pose a significant threat.

$$

MNZ018-050630-
/O.CAN.KDLH.WS.W.0009.000000T0000Z-171205T1200Z/
North Itasca-
Including the city of Bigfork
1123 PM CST Mon Dec 4 2017

...WINTER STORM WARNING IS CANCELLED...

The National Weather Service in Duluth has cancelled the Winter
Storm Warning. 

Snowfall has moved out of the area or is light in nature and does
not pose a significant threat.

$$

MNZ010-050630-
/O.CAN.KDLH.WS.W.0010.000000T0000Z-171205T1200Z/
Koochiching-
Including the city of International Falls
1123 PM CST Mon Dec 4 2017

...WINTER STORM WARNING IS CANCELLED...

The National Weather Service in Duluth has cancelled the Winter
Storm Warning. 

Snowfall has moved out of the area or is light in nature and does
not pose a significant threat.

$$

MNZ025-026-033>037-050630-
/O.CAN.KDLH.WW.Y.0029.000000T0000Z-171205T1800Z/
North Cass-South Itasca-South Cass-Crow Wing-Northern Aitkin-
South Aitkin-Carlton/South St. Louis-
Including the cities of Walker, Grand Rapids, Pine River, 
Brainerd, Hill City, Aitkin, and Duluth
1123 PM CST Mon Dec 4 2017

...WINTER WEATHER ADVISORY IS CANCELLED...

The National Weather Service in Duluth has cancelled the Winter
Weather Advisory. 

Snowfall has moved out of the area or is light in nature and does
not pose a significant threat.

$$

WIZ004-051330-
/O.CON.KDLH.WW.Y.0029.000000T0000Z-171205T1800Z/
/O.CON.KDLH.WW.Y.0030.171206T0600Z-171207T0000Z/
Iron-
Including the city of Hurley
1123 PM CST Mon Dec 4 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST
TUESDAY...
...WINTER WEATHER ADVISORY FOR LAKE EFFECT SNOW REMAINS IN EFFECT
FROM MIDNIGHT TUESDAY NIGHT TO 6 PM CST WEDNESDAY...

* WHAT...Snow expected. Total snow accumulations of 1 to 3 
  inches along with wind gusts to 40 mph. 

  Then on Wednesday, lake effect   snow showers expected. Total
  snow accumulations of 2 to 4 inches, with localized amounts up 
  to 6 inches, are expected. Plan on slippery road conditions, 
  including during the morning commute on Wednesday.

* WHERE...Iron County.

* WHEN...For the Winter Weather Advisory, until noon CST 
  Tuesday. 

  For the Winter Weather Advisory, from midnight   Tuesday night
  to 6 PM CST Wednesday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for Minnesota can be obtained by
calling 511 in state, or 1-800-542-0220. For Wisconsin, call
511 in state, or 1-866-511-9472

A Winter Weather Advisory for lake effect snow means lake effect
snow is forecast that will make travel difficult in some areas.
Use caution when traveling. The latest road conditions for
Minnesota can be obtained by calling 511 in state, or 1-800-542-
0220. For Wisconsin, call 511 in state, or 1-866-511-9472

$$

MNZ038-WIZ001-006-007-051330-
/O.CON.KDLH.WW.Y.0029.000000T0000Z-171205T1800Z/
Pine-Douglas-Burnett-Washburn-
Including the cities of Pine City, Hinckley, Superior, 
Grantsburg, and Spooner
1123 PM CST Mon Dec 4 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST
TUESDAY...

* WHAT...Snow occurring. Plan on slippery road conditions. Tree 
  branches could fall as well. Additional snow accumulations of 
  1 to 3 inches are expected. 

* WHERE...Portions of northwest Wisconsin and east central and 
  northeast Minnesota. 

* WHEN...Until noon CST Tuesday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for Minnesota can be obtained by
calling 511 in state, or 1-800-542-0220. For Wisconsin, call
511 in state, or 1-866-511-9472

$$

WIZ002-003-008-009-051330-
/O.CON.KDLH.WW.Y.0029.000000T0000Z-171205T1800Z/
Bayfield-Ashland-Sawyer-Price-
Including the cities of Washburn, Bayfield, Ashland, Hayward, 
and Phillips
1123 PM CST Mon Dec 4 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST
TUESDAY...

* WHAT...Snow occurring. Plan on slippery road conditions, 
  including during the morning commute on Tuesday. Tree branches 
  could fall as well. Additional snow accumulations of up to two 
  inches are expected along with wind gusts to 40 mph. 

* WHERE...Bayfield, Ashland, Sawyer and Price Counties.

* WHEN...Until noon CST Tuesday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for Minnesota can be obtained by
calling 511 in state, or 1-800-542-0220. For Wisconsin, call
511 in state, or 1-866-511-9472

$$

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 Duluth, MN wrote its last area forecast discussion before this winter storm warning went out at Dec 3, 11:50 PM CST, 3 hours 32 minutes earlier.

Area forecast discussion, Dec 3, 11:50 PM CST, 3 hours 32 minutes before
Area Forecast Discussion
National Weather Service Duluth MN
1150 PM CST Sun Dec 3 2017

.UPDATE...
Issued at 810 PM CST Sun Dec 3 2017

No major changes will be made this evening to the forecast,
including leaving the Winter Storm Watch as is for now.

An FGEN generated band of precipitation was moving northeast
through far northern Minnesota. Observations reveal most
temperatures were in the lower to middle thirties, but KCDD was 30
as of 8 pm. The 00Z KINL sounding showed a warm nose of +3C but a
wetbulb zero that remains at or below freezing. A light wintry mix
will be possible in spots as this band moves through and the short
term guidance is consistent warming surface temperatures to at
least the mid thirties later tonight. We still expect a chance
for light rain/drizzle through the night with chances highest over
the Arrowhead south into parts of northern Wisconsin.

We will wait for the rest of the model guidance to come in before
making changes to the Winter Storm Watch. It's possible we may
need a Winter Weather Advisory for snowfall and strong winds
causing blowing/drifting to areas not currently highlighted such
as the Twin Ports, Hinckley, Pine City, and far northwest
Wisconsin areas.

&&

.SHORT TERM...(This evening)
Issued at 312 PM CST Sun Dec 3 2017

A high pressure ridge axis was over the forecast area at 20Z. A
cold front extended from a departing low in Ontario, to near the
international border. Meanwhile, a warm front extended from the
Wyoming low into southern Minnesota. Mid and high clouds were
flowing overhead in the warm air advection ahead of the surface
low organizing in northeast Wyoming. Looking for precipitation to
break out this evening around the periphery of Lake Superior. This
will be along and north of the surface warm front lifting into
the southern portion for the forecast area by 03Z. By 12Z Monday,
the surface low center reaches eastern South Dakota, with the warm
front lifting north to the international border. An upper trof
also moves out of the Rockies into the Northern Plains by 12Z
Monday. Pieces of energy will eject into the forecast area ahead
of this upper trof and generate additional precipitation. The bulk
of the precipitation will be rain south of the Iron Range. A
rain/snow mix north of the Iron Range from 03Z to 09Z. However,
this mixed precipitation will change to all rain by 09Z as the
boundary layer warms through the night. Forecast soundings no
longer support a mention of freezing rain and have removed. Not
expecting snow accumulation tonight either with that expected
warming as seen in the model thermal profiles.

.LONG TERM...(Monday through Sunday)
Issued at 312 PM CST Sun Dec 3 2017

The extended forecast continues to show a complex and impactful
scenario for the Northland as a potent low pressure system is slated
to move through the region Monday and Tuesday. This system should
not only bring a swath of heavy snow from the Brainerd Lakes
northward towards International Falls, but also should pack strong
northwest winds with it, which should lead to blowing and drifting
snow.

This system will develop over eastern Wyoming tonight via lee
cyclogenesis on the leeward side of the Rockies, and intensify over
the Central Plains states. A deep longwave mid-level trough and
upper-level divergence will provide plenty of lift with this system.
On the backside of the low will be an 850-700 mb layer deformation
zone that is progged in the 03.12z GFS/NAM models that will support
the heaviest snowfall amounts, which is expected to drape over our
western counties. The heaviest snow is expected Monday evening,
continuing through Tuesday morning over our northern counties. The
forecast has been complicated by the 03.12z GFS shifting northwest
by about 100 miles, while the latest ECMWF/NAM models are showing
good agreement and bring the surface low along the
Minnesota/Wisconsin border in our forecast area, and points
northeast. Considered upgrading the current Winter Storm Watch to
Winter Storm Warning/Winter Weather Advisories, but decided to hold
off considering the models are still not coming into full agreement.
However, we did delay the start of the watch to 18Z Monday due to
the slight shift northwest. Overall, most of the day Monday will
be rain across a large portion of the Northland, transitioning to
snow as the day goes on. While snowfall amounts are not expected
to be as large near the Brainerd Lakes, near-blizzard conditions
will be possible there due to the strongest winds expected over
this area. Gusts of up to 40 knots will be possible in these
areas, with blowing and drifting snow continuing Tuesday across
most of the region.

For the latter half of the week, temperatures will plummet, thanks
to strong cold air advection on the backside of the low. High
temperatures Tuesday will fall into the middle teens over north-
central Minnesota to the lower 20s over northwest Wisconsin, which
should continue through the rest of the week. Due to this cold air
advection, and an upper-level trough becoming entrenched over the
region, lake effect snow is expected over the snowbelt region of
northern Wisconsin Tuesday night through the rest of the week. There
is a bit of uncertainty regarding snow amounts at this time due to a
less favorable wind direction off Lake Superior, with 1000-850 mb
layer winds more west to northwesterly. Delta-Ts continue to be
favorable for supporting this lake enhancement, so will continue
PoP mentions over this area.

&&

.AVIATION...(For the 06Z TAFS through 06Z Monday night)
Issued at 1150 PM CST Sun Dec 3 2017

Low pressure has moved into South Dakota and will strengthen
Monday as it moves toward far western Lake Superior by 00Z
Tuesday. The low will then continue to just north of Lake
Superior by 12Z Tuesday. Light rain or drizzle will be possible
tonight with lowering ceilings and visibility. There could be a
wintry mix along the Borderland and Arrowhead into early morning,
then temperatures should warm enough for mainly light rain.
Ceilings will lower to below 800 feet tonight the visibility will
drop as well as moisture continues to increase.

Light rain or drizzle will be possible Monday morning across much
of the Northland, then colder air will start to move in during the
afternoon from west to east causing the rain to mix with then
change to snow during the afternoon over portions of northern
Minnesota and over northwest wisconsin during the evening hours. A
thunderstorm could also occur Monday, mainly over far eastern
Minnesota and northwest Wisconsin.

Strong winds will develop behind the departing low with gusts of
30 knots to 40 knots possible, the strongest winds will occur late
in the TAF period.

&&

.PRELIMINARY POINT TEMPS/POPS...
DLH  35  43  15  18 /  60  80  80  40
INL  32  36  13  16 /  40 100  90  70
BRD  36  43  13  17 /  40  90  90  20
HYR  40  51  17  20 /  70  80  80  50
ASX  38  49  21  23 /  70  80  70  60

&&

.DLH WATCHES/WARNINGS/ADVISORIES...
WI...None.
MN...Winter Storm Watch from Monday afternoon through Monday evening
     for MNZ025-026-033>036.

     Winter Storm Watch from Monday evening through Tuesday morning
     for MNZ011-012-019.

     Winter Storm Watch from Monday afternoon through Tuesday morning
     for MNZ010-018.

LS...Storm Watch from late Monday night through Tuesday morning for
     LSZ146-147.

     Small Craft Advisory from 6 PM to 9 PM CST Monday for LSZ121-
     143>148.

     Gale Warning from 9 PM Monday to midnight CST Tuesday night for
     LSZ121-140>148.

&&

UPDATE...Melde
SHORT TERM...GSF
LONG TERM...JTS
AVIATION...Melde
Hazardous weather outlook, Dec 3, 6:03 PM CST, 9 hours 19 minutes before
Hazardous Weather Outlook
National Weather Service Duluth MN
603 PM CST Sun Dec 3 2017

MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-041130-
Koochiching-North St. Louis-Northern Cook/Northern Lake-
North Itasca-Central St. Louis-Southern Lake/North Shore-
Southern Cook/North Shore-North Cass-South Itasca-South Cass-
Crow Wing-Northern Aitkin-South Aitkin-Carlton/South St. Louis-
Pine-Douglas-Bayfield-Ashland-Iron-Burnett-Washburn-Sawyer-Price-
603 PM CST Sun Dec 3 2017

This Hazardous Weather Outlook is for portions of northeast
Minnesota and northwest Wisconsin.

.DAY ONE...Tonight

A wintry mix is possible over far northern Minnesota tonight,
mainly across the Arrowhead and along the International Border.
Temperatures, especially inland from Lake Superior, will be a
couple degrees either side of freezing. Light snow and ice
accumulations are possible which may lead to slick spots on area
roads.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

A potent winter storm is expected to bring accumulating snowfall
to the Northland Monday through Tuesday. The heaviest snow amounts
are expected to fall over north-central Minnesota over the
International Falls area, with less amounts by the Brainerd Lakes
area. Strong northwest winds will also accompany this system over
all areas Monday evening and Tuesday morning. Reduced
visibilities and near-blizzard conditions are possible for
portions of central Minnesota during this time. Please see the
latest Winter Weather Messages for additional details regarding
the Winter Storm Watch in effect for portions of Minnesota.

.SPOTTER INFORMATION STATEMENT...

Snow spotters are requested to report precipitation type, and
measurements of snow or ice accumulations today through Tuesday
to the National Weather Service. Spotters and the public can also
report precipitation type with the free M-PING smartphone app.

LSZ121-140>148-041130-
Bayfield to Oak Point WI-Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN-
Duluth MN to Port Wing WI-Port Wing to Sand Island WI-
Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI-
603 PM CST Sun Dec 3 2017

This Hazardous Weather Outlook is for portions of the Nearshore
waters of western Lake Superior.

.DAY ONE...Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

A potent winter storm will move through the region Monday and
Tuesday and will bring strong west to northwest winds over
western Lake Superior. Sustained winds of 15 to 30 knots are
expected with frequent gale-force gusts to 45 knots likely, with
some storm-force gusts to 55 knots possible for a small time
period Tuesday morning along the Apostle Islands. The Gale Watch
has been upgraded to a Gale Warning over all of western Lake
Superior, with a Storm Watch issued from Port Wing to Bayfield.
Please refer to the latest Nearshore Marine Forecast and Marine
Weather Message for additional details regarding the Gale Warning
and Storm Watch in effect.

Melde/GSF/JTS

More information may be obtained at the following web address:
http://www.weather.gov/duluth (all lower case)

The office that day

Everything else NWS Duluth, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 4, 3:22 AM CSTWinter Weather AdvisoryDLHAitkin, Carlton, Cass, Cook, Crow Wing, Itasca and 3 more33 hr
Dec 4, 9:11 AM CSTWinter Storm WarningDLHKoochiching14 hr
Dec 4, 10:31 AM CSTStorm WarningDLH29 hr
Dec 4, 5:04 PM CSTSpecial Weather StatementDLHLake11 min
Dec 4, 5:20 PM CSTSpecial Weather StatementDLHLake10 min

Nearby

Winter Storm Warnings in Minnesota, 2017Every winter storm warning in 2017

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.