Winter Storm Warning 3, NWS Sioux Falls, SD

705 
WWUS43 KFSD 231659
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
1059 AM CST Thu Feb 23 2017

SDZ055-240100-
/O.CAN.KFSD.WS.W.0003.170223T2100Z-170225T0000Z/
/O.EXA.KFSD.WW.Y.0006.170223T2100Z-170224T1800Z/
Lake-
1059 AM CST Thu Feb 23 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO
NOON CST FRIDAY...
...WINTER STORM WARNING IS CANCELLED...

The National Weather Service in Sioux Falls has issued a Winter
Weather Advisory for snow and blowing snow, which is in effect 
from 3 PM this afternoon to noon CST Friday. The Winter Storm 
Warning has been cancelled. 

* TIMING...Snow will spread into the area early to mid 
  afternoon, then continue through tonight. Snow should diminish 
  through Friday morning. 

* ACCUMULATIONS...Storm total snow accumulations averaging 2 to 
  4 inches are expected. 

* WIND AND VISIBILITY...Winds will increase from the north around
  25 to 30 mph tonight and Friday, with gusts to near 35 mph at
  times. Visibility will be reduced to a half mile at times, especially
  while snow is falling. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means that 
visibilities will be limited due to a combination of falling and 
blowing snow. Use caution when traveling...especially in open 
areas.

&&

$$

SDZ057>059-240100-
/O.CAN.KFSD.WS.W.0003.170223T1800Z-170224T1800Z/
/O.EXA.KFSD.WW.Y.0006.170223T2100Z-170224T1800Z/
Brule-Aurora-Davison-
1059 AM CST Thu Feb 23 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO
NOON CST FRIDAY...
...WINTER STORM WARNING IS CANCELLED...

The National Weather Service in Sioux Falls has issued a Winter
Weather Advisory for snow and blowing snow, which is in effect 
from 3 PM this afternoon to noon CST Friday. The Winter Storm 
Warning has been cancelled. 

* TIMING...Snow will continue through tonight. Snow should
  diminish late tonight into Friday morning. 

* ACCUMULATIONS...Storm total snow accumulations averaging 2 to 5
  inches are expected, with the higher amounts near Interstate 90
  and points south.

* WIND AND VISIBILITY...Winds will increase from the north 
  around 25 to 30 mph tonight and Friday, with gusts to near 35 
  mph at times. Visibility will be reduced to a half mile or 
  less at times, especially while snow is falling. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means that 
visibilities will be limited due to a combination of falling and 
blowing snow. Use caution when traveling...especially in open 
areas.

&&

$$

SDZ038>040-231800-
/O.CAN.KFSD.WW.Y.0006.170223T2100Z-170224T1800Z/
Beadle-Kingsbury-Brookings-
1059 AM CST Thu Feb 23 2017

...WINTER WEATHER ADVISORY IS CANCELLED...

The National Weather Service in Sioux Falls has cancelled the
Winter Weather Advisory. 

While light snow will still be possible this afternoon and evening
amounts should be less than 2 inches. This will diminish the
threat for widespread blowing and drifting.

$$

MNZ071-231800-
/O.CAN.KFSD.BZ.A.0001.170224T0000Z-170225T0000Z/
Lincoln MN-
1059 AM CST Thu Feb 23 2017

...BLIZZARD WATCH IS CANCELLED...

The National Weather Service in Sioux Falls has cancelled the
Blizzard Watch. 

While light snow will still be possible this afternoon and evening
amounts should be less than 2 inches. This will diminish the
threat for widespread blowing and drifting.

$$

IAZ001-012-020-031-MNZ080-097-098-NEZ013-014-SDZ056-062-067-070-
071-240100-
/O.CON.KFSD.BZ.W.0001.170224T0000Z-170225T0000Z/
Lyon IA-Sioux-Plymouth-Woodbury-Murray-Pipestone-Rock-Dixon-
Dakota-Moody-Minnehaha-Lincoln SD-Clay SD-Union-
1059 AM CST Thu Feb 23 2017

...BLIZZARD WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO
6 PM CST FRIDAY...

* TIMING...A possible mix of rain and snow this afternoon will
  change to all snow by early this evening. Snow will continue
  heavy at times Thursday night and before gradually tapering off
  Friday morning into the afternoon. 

* ACCUMULATIONS...Storm total snow accumulations averaging 5 to 
  11 inches are likely, with the heaviest amounts expected south 
  of Highway 18 in northwest Iowa and extreme southeast South 
  Dakota. 

* WIND AND VISIBILITY...Winds will increase from the north 
  around 25 to 35 mph tonight and Friday, with gusts to near 40 
  mph at times. Visibility will be reduced to less than a 
  quarter mile at times, especially while snow is falling. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. Falling and blowing snow with strong winds
and poor visibilities are likely. This will lead to whiteout
conditions...making travel extremely dangerous. Do not travel. If
you must travel...have a winter survival kit with you. If you get
stranded...stay with your vehicle.

&&

$$

IAZ002-003-013-014-021-022-032-MNZ081-089-090-240100-
/O.CON.KFSD.BZ.W.0001.170224T0000Z-170225T0600Z/
Osceola-Dickinson-O'Brien-Clay IA-Cherokee-Buena Vista-Ida-
Cottonwood-Nobles-Jackson-
1059 AM CST Thu Feb 23 2017

...BLIZZARD WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO
MIDNIGHT CST FRIDAY NIGHT...

* TIMING...A possible mix of rain and snow this afternoon will 
  change to all snow through this evening. Snow will continue 
  heavy at times Thursday night and Friday, before gradually 
  tapering off Friday evening. 

* ACCUMULATIONS...Storm total snow accumulations averaging 8 to 
  12 inches are likely, with some higher amounts possible. 

* WIND AND VISIBILITY...Winds will increase from the north 
  around 25 to 35 mph tonight, with gusts to near 45 mph at 
  times late tonight into Friday. Visibility is expected to be 
  reduced to less than a quarter of a mile at times, especially 
  while snow is falling. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. Falling and blowing snow with strong winds
and poor visibilities are likely. This will lead to whiteout
conditions...making travel extremely dangerous. Do not travel. If
you must travel...have a winter survival kit with you. If you get
stranded...stay with your vehicle.

&&

$$

SDZ050-063-064-240100-
/O.CON.KFSD.WS.W.0003.170223T1800Z-170224T1800Z/
Gregory-Charles Mix-Douglas-
1059 AM CST Thu Feb 23 2017

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

* TIMING...Snow will will continue, heavy at times this afternoon
  and evening. Snow should diminish late tonight into Friday morning.

* ACCUMULATIONS...Storm total snow accumulations averaging 5 to 
  10 inches are likely, with the heaviest amounts expected near 
  the Missouri River Valley. 

* WIND AND VISIBILITY...Winds will increase from the north 
  around 25 to 30 mph tonight and Friday, with gusts to near 35 
  mph at times. Visibility will be reduced to less than a half 
  mile at times, especially while snow is falling. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for heavy snow and blowing snow means
severe winter weather conditions are expected or occurring.
Significant amounts of snow are forecast that will make travel
dangerous...and visibilities will be limited further due to
strong winds blowing snow around.  Only travel in an emergency. 
If you must travel...keep an extra flashlight...food...and water
in your vehicle in case of an emergency.

&&

$$

SDZ060-061-065-066-068-069-240100-
/O.CON.KFSD.WS.W.0003.170223T2100Z-170225T0000Z/
Hanson-McCook-Hutchinson-Turner-Bon Homme-Yankton-
1059 AM CST Thu Feb 23 2017

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

* TIMING...A possible mix of rain and snow this afternoon will 
  change to all snow by this evening. Snow will continue heavy 
  at times tonight, before gradually tapering off Friday 
  morning. 

* ACCUMULATIONS...Storm total snow accumulations averaging 5 to 
  10 inches are likely, with the heaviest amounts expected near 
  the Missouri River Valley. 

* WIND AND VISIBILITY...Winds will increase from the north 
  around 25 to 30 mph tonight and Friday, with gusts to near 35 
  mph at times. Visibility will be reduced to less than a half 
  mile at times, especially while snow is falling. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for heavy snow and blowing snow means
severe winter weather conditions are expected or occurring.
Significant amounts of snow are forecast that will make travel
dangerous...and visibilities will be limited further due to
strong winds blowing snow around.  Only travel in an emergency. 
If you must travel...keep an extra flashlight...food...and water
in your vehicle in case of an emergency.

&&

$$

MNZ072-240100-
/O.UPG.KFSD.BZ.A.0001.170224T0000Z-170225T0000Z/
/O.EXB.KFSD.WW.Y.0006.170224T0300Z-170225T0000Z/
Lyon MN-
1059 AM CST Thu Feb 23 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO
6 PM CST FRIDAY...

The National Weather Service in Sioux Falls has issued a Winter
Weather Advisory for snow and blowing snow, which is in effect 
from 9 PM this evening to 6 PM CST Friday. The Blizzard Watch is 
no longer in effect. 

* TIMING...Snow will spread into the area early this evening, then
  continue through tonight. Snow should diminish through the day 
  Friday. 

* ACCUMULATIONS...Storm total snow accumulations averaging 1 to 
  3 inches are expected. 

* WIND AND VISIBILITY...Winds will increase from the north 
  around 25 to 35 mph tonight and Friday, with gusts of 40 to 45 
  mph at times. If the falling snow is heavy enough, visibility 
  could be reduced to less than a quarter mile at times, 
  especially while snow is falling. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means that 
visibilities will be limited due to a combination of falling and 
blowing snow. Use caution when traveling...especially in open 
areas.

&&

$$

SDZ052>054-240100-
/O.CON.KFSD.WW.Y.0006.170223T2100Z-170224T1800Z/
Jerauld-Sanborn-Miner-
1059 AM CST Thu Feb 23 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO NOON CST FRIDAY...

* TIMING...Snow will spread into the area early to mid 
  afternoon, then continue through tonight. Snow should diminish 
  through Friday morning. 

* ACCUMULATIONS...Storm total snow accumulations averaging 2 to 4
  inches are expected with the higher amounts closer to Interstate
  90.

* WIND AND VISIBILITY...Winds will increase from the north 
  around 25 to 30 mph tonight and Friday, with gusts to near 35 
  mph at times. Visibility will be reduced to a half mile or 
  less at times, especially while snow is falling. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means that
visibilities will be limited due to a combination of falling and
blowing snow. Use caution when traveling...especially in open
areas.

&&

$$

116 
WWUS43 KFSD 232213
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
413 PM CST Thu Feb 23 2017

SDZ056-240615-
/O.CAN.KFSD.BZ.W.0001.170224T0000Z-170225T0000Z/
/O.EXB.KFSD.WW.Y.0006.000000T0000Z-170224T1500Z/
Moody-
413 PM CST Thu Feb 23 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 9 AM CST FRIDAY...
...BLIZZARD WARNING IS CANCELLED...

The National Weather Service in Sioux Falls has issued a Winter
Weather Advisory for snow and blowing snow, which is in effect 
until 9 AM CST Friday. The Blizzard Warning has been cancelled. 

* TIMING...Snow will continue through tonight. Snow should 
  diminish late tonight into Friday morning. 

* ACCUMULATIONS...Storm total snow accumulations averaging 2 to 5
  inches are expected.

* WIND AND VISIBILITY...Winds will increase from the north around
  20 to 30 mph tonight and Friday, with gusts to near 35 mph at 
times. Visibility will be reduced to a half mile or less at 
times, especially while snow is falling. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means that 
visibilities will be limited due to a combination of falling and 
blowing snow. Use caution when traveling...especially in open 
areas.

&&

$$

IAZ001-012-020-031-MNZ080-097-098-NEZ013-014-SDZ062-067-070-071-
240615-
/O.EXT.KFSD.BZ.W.0001.170224T0000Z-170224T1800Z/
Lyon IA-Sioux-Plymouth-Woodbury-Murray-Pipestone-Rock-Dixon-
Dakota-Minnehaha-Lincoln SD-Clay SD-Union-
413 PM CST Thu Feb 23 2017

...BLIZZARD WARNING NOW IN EFFECT UNTIL NOON CST FRIDAY...

* TIMING...Snow will continue to develop this evening. Snow will 
continue heavy at times tonight before gradually tapering off 
Friday morning.

* ACCUMULATIONS...Storm total snow accumulations averaging 6 to 11
  inches are likely, with the heaviest amounts expected south of
  Highway 18 in northwest Iowa and extreme southeast South Dakota.

* WIND AND VISIBILITY...Winds will increase from the north around
  20 to 30 mph tonight and Friday, with gusts to near 40 mph at
  times. Visibility will be reduced to less than a quarter mile at
times, especially while snow is falling. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. Falling and blowing snow with strong winds
and poor visibilities are likely. This will lead to whiteout
conditions...making travel extremely dangerous. Do not travel. If
you must travel...have a winter survival kit with you. If you get
stranded...stay with your vehicle.

&&

$$

IAZ002-003-013-014-021-022-032-MNZ081-089-090-240615-
/O.EXT.KFSD.BZ.W.0001.170224T0300Z-170225T0600Z/
Osceola-Dickinson-O'Brien-Clay IA-Cherokee-Buena Vista-Ida-
Cottonwood-Nobles-Jackson-
413 PM CST Thu Feb 23 2017

...BLIZZARD WARNING NOW IN EFFECT FROM 9 PM THIS EVENING TO
MIDNIGHT CST FRIDAY NIGHT...

* TIMING...Areas of snow early this evening will become widespread
  before midnight. Snow will continue heavy into Friday afternoon
  before gradually ending by Friday evening.

* ACCUMULATIONS...Storm total snow accumulations averaging 8 to 
  12 inches are likely, with some higher amounts possible. 

* WIND AND VISIBILITY...Winds will increase from the north 
  around 25 to 35 mph tonight, with gusts to near 45 mph at 
  times late tonight into Friday. Visibility is expected to be 
  reduced to less than a quarter of a mile at times, especially 
  while snow is falling. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. Falling and blowing snow with strong winds
and poor visibilities are likely. This will lead to whiteout
conditions...making travel extremely dangerous. Do not travel. If
you must travel...have a winter survival kit with you. If you get
stranded...stay with your vehicle.

&&

$$

SDZ050-063-064-240615-
/O.EXT.KFSD.WS.W.0003.000000T0000Z-170224T1500Z/
Gregory-Charles Mix-Douglas-
413 PM CST Thu Feb 23 2017

...WINTER STORM WARNING NOW IN EFFECT UNTIL 9 AM CST FRIDAY...

* TIMING...Snow will will into this evening. Snow should diminish
  late tonight and early Friday morning. 

* ACCUMULATIONS...Storm total snow accumulations averaging 5 to 
  10 inches are likely, with the heaviest amounts expected near 
  the Missouri River Valley. 

* WIND AND VISIBILITY...Winds will increase from the north around
  20 to 30 mph tonight and Friday, with gusts to near 35 mph at 
times. Visibility will be reduced to less than a half mile at 
times, especially while snow is falling. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for heavy snow and blowing snow means
severe winter weather conditions are expected or occurring.
Significant amounts of snow are forecast that will make travel
dangerous...and visibilities will be limited further due to
strong winds blowing snow around.  Only travel in an emergency.
If you must travel...keep an extra flashlight...food...and water
in your vehicle in case of an emergency.

&&

$$

SDZ060-061-065-066-068-069-240615-
/O.EXT.KFSD.WS.W.0003.000000T0000Z-170224T1800Z/
Hanson-McCook-Hutchinson-Turner-Bon Homme-Yankton-
413 PM CST Thu Feb 23 2017

...WINTER STORM WARNING NOW IN EFFECT UNTIL NOON CST FRIDAY...

* TIMING...Snow, heavy at times tonight, will continue through
  this evening.  

* ACCUMULATIONS...Storm total snow accumulations averaging 5 to 
  10 inches are likely, with the heaviest amounts expected near 
  the Missouri River Valley. 

* WIND AND VISIBILITY...Winds will increase from the north around
  20 to 30 mph tonight and Friday, with gusts to near 35 mph at 
times. Visibility will be reduced to less than a half mile at 
times, especially while snow is falling. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for heavy snow and blowing snow means
severe winter weather conditions are expected or occurring.
Significant amounts of snow are forecast that will make travel
dangerous...and visibilities will be limited further due to
strong winds blowing snow around.  Only travel in an emergency.
If you must travel...keep an extra flashlight...food...and water
in your vehicle in case of an emergency.

&&

$$

SDZ052>055-057>059-240615-
/O.EXT.KFSD.WW.Y.0006.000000T0000Z-170224T1500Z/
Jerauld-Sanborn-Miner-Lake-Brule-Aurora-Davison-
413 PM CST Thu Feb 23 2017

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 9 AM CST FRIDAY...

* TIMING...Snow will continue through tonight. Snow should
  diminish by early Friday morning. 

* ACCUMULATIONS...Storm total snow accumulations averaging 2 to 
  4 inches are expected. 

* WIND AND VISIBILITY...Winds will increase from the north around
  20 to 30 mph tonight and Friday, with gusts to near 35 mph at 
times. Visibility will be reduced to a half mile at times, 
especially while snow is falling. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means that
visibilities will be limited due to a combination of falling and
blowing snow. Use caution when traveling...especially in open
areas.

&&

$$

MNZ072-240615-
/O.CON.KFSD.WW.Y.0006.170224T0300Z-170225T0000Z/
Lyon MN-
413 PM CST Thu Feb 23 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM THIS
EVENING TO 6 PM CST FRIDAY...

* TIMING...Snow will spread into the area early this evening, 
  then continue through tonight. Snow should diminish through 
  the day Friday. 

* ACCUMULATIONS...Storm total snow accumulations averaging 1 to 
  3 inches are expected. 

* WIND AND VISIBILITY...Winds will increase from the north 
  around 25 to 35 mph tonight and Friday, with gusts of 40 to 45 
  mph at times. If the falling snow is heavy enough, visibility 
  could be reduced to less than a quarter mile at times, 
  especially while snow is falling. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means that
visibilities will be limited due to a combination of falling and
blowing snow. Use caution when traveling...especially in open
areas.

&&

$$

Schumacher

635 
WWUS43 KFSD 240312
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
912 PM CST Thu Feb 23 2017

SDZ052-053-240415-
/O.CAN.KFSD.WW.Y.0006.000000T0000Z-170224T1500Z/
Jerauld-Sanborn-
912 PM CST Thu Feb 23 2017

...WINTER WEATHER ADVISORY IS CANCELLED...

The National Weather Service in Sioux Falls has cancelled the
Winter Weather Advisory. 

Any additional snowfall accumulation is expected to be light.

$$

MNZ072-240415-
/O.CAN.KFSD.WW.Y.0006.000000T0000Z-170225T0000Z/
Lyon MN-
912 PM CST Thu Feb 23 2017

...WINTER WEATHER ADVISORY IS CANCELLED...

The National Weather Service in Sioux Falls has cancelled the
Winter Weather Advisory. 

Any additional snowfall accumulation is expected to be light.


$$

IAZ001-012-020-031-MNZ080-097-098-NEZ013-014-SDZ062-067-070-071-
241115-
/O.CON.KFSD.BZ.W.0001.000000T0000Z-170224T1800Z/
Lyon IA-Sioux-Plymouth-Woodbury-Murray-Pipestone-Rock-Dixon-
Dakota-Minnehaha-Lincoln SD-Clay SD-Union-
912 PM CST Thu Feb 23 2017

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON CST FRIDAY...

* TIMING...Snow will continue heavy at times tonight before 
  gradually tapering off Friday morning.

* ACCUMULATIONS...Storm total snow accumulations averaging 6 to 9
  inches are likely, with the heaviest amounts expected south of Highway
  18 in northwest Iowa and extreme southeast South Dakota.

* WIND AND VISIBILITY...Winds will increase from the north 
  around 20 to 30 mph tonight and Friday, with gusts to near 40 
  mph at times. Visibility will be reduced to less than a 
  quarter mile at times, especially while snow is falling. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. Falling and blowing snow with strong winds
and poor visibilities are likely. This will lead to whiteout
conditions...making travel extremely dangerous. Do not travel. If
you must travel...have a winter survival kit with you. If you get
stranded...stay with your vehicle.

&&

$$

IAZ002-003-013-014-021-022-032-MNZ081-089-090-241115-
/O.CON.KFSD.BZ.W.0001.000000T0000Z-170225T0600Z/
Osceola-Dickinson-O'Brien-Clay IA-Cherokee-Buena Vista-Ida-
Cottonwood-Nobles-Jackson-
912 PM CST Thu Feb 23 2017

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST FRIDAY
NIGHT...

* TIMING...Areas of snow will continue heavy at times into Friday
  afternoon before gradually ending by Friday evening.

* ACCUMULATIONS...Storm total snow accumulations averaging 8 to 
  10 inches are likely, with some higher amounts possible. 

* WIND AND VISIBILITY...Winds will increase from the north 
  around 25 to 35 mph tonight, with gusts to near 45 mph at 
  times late tonight into Friday. Visibility is expected to be 
  reduced to less than a quarter of a mile at times, especially 
  while snow is falling. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. Falling and blowing snow with strong winds
and poor visibilities are likely. This will lead to whiteout
conditions...making travel extremely dangerous. Do not travel. If
you must travel...have a winter survival kit with you. If you get
stranded...stay with your vehicle.

&&

$$

SDZ050-063-064-241115-
/O.CON.KFSD.WS.W.0003.000000T0000Z-170224T1500Z/
Gregory-Charles Mix-Douglas-
912 PM CST Thu Feb 23 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST FRIDAY...

* TIMING...Snow will continue through the evening then diminish 
  late tonight and early Friday morning. 

* ACCUMULATIONS...Storm total snow accumulations averaging 5 to 
  10 inches are likely, with the heaviest amounts expected near 
  the Missouri River Valley. 

* WIND AND VISIBILITY...Winds will increase from the north 
  around 20 to 30 mph tonight and Friday, with gusts to near 35 
  mph at times. Visibility will be reduced to less than a half 
  mile at times, especially while snow is falling. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for heavy snow and blowing snow means
severe winter weather conditions are expected or occurring.
Significant amounts of snow are forecast that will make travel
dangerous...and visibilities will be limited further due to
strong winds blowing snow around.  Only travel in an emergency.
If you must travel...keep an extra flashlight...food...and water
in your vehicle in case of an emergency.

&&

$$

SDZ060-061-065-066-068-069-241115-
/O.CON.KFSD.WS.W.0003.000000T0000Z-170224T1800Z/
Hanson-McCook-Hutchinson-Turner-Bon Homme-Yankton-
912 PM CST Thu Feb 23 2017

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

* TIMING...Snow, heavy at times tonight, will continue through 
  this evening. 

* ACCUMULATIONS...Storm total snow accumulations averaging 5 to 
  10 inches are likely, with the heaviest amounts expected near 
  the Missouri River Valley. 

* WIND AND VISIBILITY...Winds will increase from the north 
  around 20 to 30 mph tonight and Friday, with gusts to near 35 
  mph at times. Visibility will be reduced to less than a half 
  mile at times, especially while snow is falling. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for heavy snow and blowing snow means
severe winter weather conditions are expected or occurring.
Significant amounts of snow are forecast that will make travel
dangerous...and visibilities will be limited further due to
strong winds blowing snow around.  Only travel in an emergency.
If you must travel...keep an extra flashlight...food...and water
in your vehicle in case of an emergency.

&&

$$

SDZ054>059-241115-
/O.CON.KFSD.WW.Y.0006.000000T0000Z-170224T1500Z/
Miner-Lake-Moody-Brule-Aurora-Davison-
912 PM CST Thu Feb 23 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST
FRIDAY...

* TIMING...Snow will continue through tonight. Snow should 
  diminish late tonight into Friday morning. 

* ACCUMULATIONS...Storm total snow accumulations averaging 2 to 
  5 inches are expected. 

* WIND AND VISIBILITY...Winds will increase from the north 
  around 20 to 30 mph tonight and Friday, with gusts to near 35 
  mph at times. Visibility will be reduced to a half mile or 
  less at times, especially while snow is falling. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means that
visibilities will be limited due to a combination of falling and
blowing snow. Use caution when traveling...especially in open
areas.

&&

$$

050 
WWUS43 KFSD 241013
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
413 AM CST Fri Feb 24 2017

MNZ080-097-098-SDZ062-241115-
/O.CAN.KFSD.BZ.W.0001.000000T0000Z-170224T1800Z/
Murray-Pipestone-Rock-Minnehaha-
413 AM CST Fri Feb 24 2017

...BLIZZARD WARNING IS CANCELLED...

The National Weather Service in Sioux Falls has cancelled the
Blizzard Warning. 

Accumulating snow has ended across the area. Although strong winds
are still expected, and drifting snow is still likely, the wet
nature of the snowfall should limit significant blowing snow. Be
sure to check the latest road conditions before heading out.

$$

SDZ050-063-064-241115-
/O.CAN.KFSD.WS.W.0003.000000T0000Z-170224T1500Z/
Gregory-Charles Mix-Douglas-
413 AM CST Fri Feb 24 2017

...WINTER STORM WARNING IS CANCELLED...

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

Accumulating snow has ended across the area. Strong winds today
may still produce some patchy drifting snow, so be sure to check
the latest road conditions before heading out.

$$

SDZ060-061-065-241115-
/O.CAN.KFSD.WS.W.0003.000000T0000Z-170224T1800Z/
Hanson-McCook-Hutchinson-
413 AM CST Fri Feb 24 2017

...WINTER STORM WARNING IS CANCELLED...

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

Accumulating snow has ended across the area. Strong winds today
may still produce some patchy drifting snow, so be sure to check
the latest road conditions before heading out.

$$

SDZ054>059-241115-
/O.CAN.KFSD.WW.Y.0006.000000T0000Z-170224T1500Z/
Miner-Lake-Moody-Brule-Aurora-Davison-
413 AM CST Fri Feb 24 2017

...WINTER WEATHER ADVISORY IS CANCELLED...

The National Weather Service in Sioux Falls has cancelled the
Winter Weather Advisory. 

Accumulating snow has ended across the area. Strong winds today
may still produce some patchy drifting snow, so be sure to check
the latest road conditions before heading out.

$$

IAZ001-012-020-031-NEZ013-014-SDZ067-070-071-241800-
/O.CON.KFSD.BZ.W.0001.000000T0000Z-170224T1800Z/
Lyon IA-Sioux-Plymouth-Woodbury-Dixon-Dakota-Lincoln SD-Clay SD-
Union-
413 AM CST Fri Feb 24 2017

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY...

* TIMING...Snow will continue this morning, gradually tapering off
  by midday.

* ACCUMULATIONS...Additional accumulations of 1 to 3 inches are
  possible, with the highest amounts south of Highway 18.

* WIND AND VISIBILITY...North winds of 20 to 30 mph, with
  occasional gusts of 35 to 40 mph, will be common today. Expect
  areas of low visibility, especially while snow is falling.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. Falling and blowing snow with strong winds
and poor visibilities are likely. This will lead to whiteout
conditions...making travel extremely dangerous. Do not travel. If
you must travel...have a winter survival kit with you. If you get
stranded...stay with your vehicle.

&&

$$

IAZ002-003-013-014-021-022-032-MNZ081-089-090-241815-
/O.CON.KFSD.BZ.W.0001.000000T0000Z-170225T0600Z/
Osceola-Dickinson-O'Brien-Clay IA-Cherokee-Buena Vista-Ida-
Cottonwood-Nobles-Jackson-
413 AM CST Fri Feb 24 2017

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* TIMING...Snow will continue this morning, gradually tapering off
  through the afternoon.

* ACCUMULATIONS...Additional accumulations averaging 1 to 3 inches
  are possible, with the highest amounts south of Highway 18 in
  northwest Iowa.

* WIND AND VISIBILITY...North winds of 25 to 35 mph, with
  occasional gusts of 40 to 45 mph, will be common today. Expect
  areas of low visibility, especially while snow is falling. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. Falling and blowing snow with strong winds
and poor visibilities are likely. This will lead to whiteout
conditions...making travel extremely dangerous. Do not travel. If
you must travel...have a winter survival kit with you. If you get
stranded...stay with your vehicle.

&&

$$

SDZ066-068-069-241800-
/O.CON.KFSD.WS.W.0003.000000T0000Z-170224T1800Z/
Turner-Bon Homme-Yankton-
413 AM CST Fri Feb 24 2017

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

* TIMING...Snow will gradually taper off through the morning.

* ACCUMULATIONS...Additional accumulations around an inch are
  possible. 

* WIND AND VISIBILITY...North winds of 20 to 30 mph, with
  occasional gusts to 35 mph, will be common today. Expect areas
  of low visibility, especially while snow is falling.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for heavy snow and blowing snow means
severe winter weather conditions are expected or occurring.
Significant amounts of snow are forecast that will make travel
dangerous...and visibilities will be limited further due to
strong winds blowing snow around.  Only travel in an emergency.
If you must travel...keep an extra flashlight...food...and water
in your vehicle in case of an emergency.

&&

$$

152 
WWUS43 KFSD 241751
WSWFSD

URGENT - WINTER WEATHER MESSAGE
National Weather Service Sioux Falls SD
1151 AM CST Fri Feb 24 2017

IAZ001-012-020-031-NEZ013-014-SDZ067-070-071-241900-
/O.CAN.KFSD.BZ.W.0001.000000T0000Z-170224T1800Z/
Lyon IA-Sioux-Plymouth-Woodbury-Dixon-Dakota-Lincoln SD-Clay SD-
Union-
1151 AM CST Fri Feb 24 2017

...BLIZZARD WARNING IS CANCELLED...

The National Weather Service in Sioux Falls has cancelled the
Blizzard Warning. 

Light snow has come to an end or will be coming to an end early
this afternoon. While winds may continue to gust to 30 mph,
widespread blowing snow is not anticipated. Roads however will
remain slippery into the evening. 

$$

SDZ066-068-069-241900-
/O.CAN.KFSD.WS.W.0003.000000T0000Z-170224T1800Z/
Turner-Bon Homme-Yankton-
1151 AM CST Fri Feb 24 2017

...WINTER STORM WARNING IS CANCELLED...

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

Light snow has come to an end or will be coming to an end early
this afternoon. While winds may continue to gust to 30 mph,
widespread blowing snow is not anticipated. Roads however will
remain slippery into the evening. 

$$

IAZ002-003-013-014-021-022-032-MNZ081-089-090-250100-
/O.CON.KFSD.BZ.W.0001.000000T0000Z-170225T0600Z/
Osceola-Dickinson-O'Brien-Clay IA-Cherokee-Buena Vista-Ida-
Cottonwood-Nobles-Jackson-
1151 AM CST Fri Feb 24 2017

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CST
TONIGHT...

* TIMING...Snow will gradually taper off this afternoon.


* ACCUMULATIONS...Additional accumulations averaging 1 inch is 
possible.

* WIND AND VISIBILITY...North winds of 25 to 35 mph, with
  occasional gusts of 40 to 45 mph, will be common this afternoon
  before diminishing this evening. Expect areas of low 
visibility, especially while snow is falling. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are
expected or occurring. Falling and blowing snow with strong winds
and poor visibilities are likely. This will lead to whiteout
conditions...making travel extremely dangerous. Do not travel. If
you must travel...have a winter survival kit with you. If you get
stranded...stay with your vehicle.

&&

$$

Area Forecast Discussion
National Weather Service Sioux Falls SD
1058 PM CST Wed Feb 22 2017

.SHORT TERM...(This evening through Thursday)
Issued at 439 PM CST Wed Feb 22 2017

The tail end of a fairly strong short wave continues to move across
areas to the north of the CWA. The wave is fairly strong but it is
not sagging southward enough to impact our northern zones. Therefore
believe we will see an increase in low cloudiness from north to
south tonight behind the advancing cold front which this wave is
forcing through. Late tonight, deep saturation begins in our south
central SD zones ahead of a large upper trough digging into the
western United States. Isentropic lift is abundant in the 290-300K
layer, so therefore to the north of the aforementioned front, will
likely see some light snow develop in those zones before moving
eastward. The upper trough will then move eastward through the day
on Thursday into western Neb, southeast WY and northeast CO by the
end of the day. Surface low pressure develops in response in western
and central KS with a warm conveyor belt of moisture aloft beginning
to develop to the north of strong frontal forcing in the central
plains. Deep saturation really begins to take hold during the
afternoon hours for much of our forecast area minus our far
northeast zones from Brookings, to Marshall and Windom. In addition,
our aforementioned isentropic lift remains strong. Most notably,
strong 750-700mb frontogenesis begins to take shape close to I 90
which will aid in spreading precipitation eastward through the day.
Because of a northeasterly fetch of low level air and obvious ample
cloud cover, daytime highs on Thursday will likely not move more
then a few or several degrees off of morning lows. Given the surface
temperatures, should see primarily rainfall in northwest IA and
immediate adjacent locations, transitioning to all snow from east
central SD to south central SD, and also through a good portion of
southwest MN.

By the end of the day, 3 to 5 inches of snow is quite possible in
far southwest zones in south central SD as surface temperatures in
that area just hover around 30 degrees. They also exhibit the
coldest temperatures aloft with even a bit of dendricity to work
with. Daytime snow amounts will taper off to the east and north of
that area to eventually what is no accumulation at all in northwest
IA and immediate adjacent locations. For headlines, updated the
winter storm watch to a blizzard watch for the afternoon hours for
south central SD. We can fine tune this area in the future, but
eventually the blizzard watch area will see 45 to 50 knot winds in
the mixed layer.  This accounts for a potential model trend of
sliding southward per the GEM Global and ECMWF from their previous
runs, but noting that the GFS has slide a bit northward by late
Thursday more similar to the older runs of the GEM Global. So there
is still uncertainty in the low track which means everything where
the mesoscale dynamics and instability will eventually setup. So
therefore even for Thursday afternoon, did not want to upgrade to a
winter storm warning in south central SD in case we need a blizzard
warning in that area, but not enough confidence to go all out
blizzard warning yet due to track uncertainty.

.LONG TERM...(Thursday night through Wednesday)
Issued at 439 PM CST Wed Feb 22 2017

Models still expressing a spread in solutions with regard to upper
and surface low tracks for the Thursday night through Friday time
period. Still rejected the NAM with its far northern solution, but
the 12Z GFS, ECMWF, and GEM all shifted slightly farther south with
QPF fields/dynamics for that time period. In light of that, shifted
the heavier snow band slightly southward also. A couple model
changes of note; all models indicating instability in the form of
weak CAPE lifting northward out of eastern Nebraska on Thursday
evening, so introduced isolated thunder over portions of our lower
IA zones before 03Z. In addition, both the GFS and GEM develop strong
midlevel frontogenesis over northwestern IA in the evening, with
increased QPF amounts over that area. Temperatures aloft will be
cool enough by that point that this precipitation should be in the
form of snow, though surface temps may sit in the mid 30s, putting a
damper on snow accumulations over that area. At this point, it does
not appear that any convection over eastern Nebraska in the evening
would be enough to disrupt snow accumulations to the north, but it
will be something to keep an eye on.

By Friday morning the surface low center will be somewhere in the
vicinity of south central IA, and in a tightening gradient and mixed
layer winds increasing to 40 to 50 kts, surface winds speeds will be
ramping up later on Thursday night into Friday. With this comes an
increasing confidence of blizzard conditions developing through that
time frame, and as mentioned in the short term discussion, elected
to transition the Winter Storm Watch to a Blizzard Watch for most of
the area. The exceptions to this, which will most likely be more
refined in future forecasts, is through the western Highway 14
corridor counties where with southerly shifting model trends
snowfall may be less and winds may not be quite as strong, and
through Woodbury and Ida counties where warmer temperatures may
preclude as much blowing. These areas remain in a Winter Storm
Watch. Temperatures will move little on Friday, sitting in the mid
and upper 20s.

Light snow could be lingering Friday evening in areas east of
Interstate 29, otherwise clouds will decrease later in the night
with dying winds as low pressure moves out of the region. At this
time, snowfall totals by Friday evening will range from 6 to 12
inches, with locally higher amounts possible, and maximized amounts
running from south central SD into southeastern SD, through
southwestern MN and the IA Great Lakes area. More uncertainty exists
through the northern James River Valley with the aforementioned
southerly shifting model trends. With snow cover and decreasing
clouds/dying winds it will be colder on Friday night as lows drop
into the mid teens.

Little changes made to the remainder of the extended period with the
nearer term storm. The main theme looks to be temperatures at or
just above normal, with the next best chance of precipitation coming
in the Tuesday of next week time frame.

&&

.AVIATION...(For the 06Z TAFS through 06Z Thursday night)
Issued at 1050 PM CST Wed Feb 22 2017

MVFR and IFR ceilings near and north of I-90 will continue to
advect southward through the overnight hours. Snow will begin
developing around daybreak in south central SD and spread east
through the region through midday Thursday. Snow will likely
begin as rain, or a rain and snow mix, in far southeast SD,
northwest Iowa, and portions of southwest MN. During the evening
hours Thursday, any areas with rain or a mix will turn over
entirely to snownfall. Northerly winds tonight will be breezy at
times, then turn more east or northeast and increase to 15 to 30
kt mid morning. This will further reduce visibilites in snow and
blowing snow. Visibilities may locally drop to a half mile or
less. Ceilings will also drop to the 500 to 1500 ft range as snow
and rain develops.

&&

.FSD WATCHES/WARNINGS/ADVISORIES...
SD...Blizzard Watch from Thursday evening through Friday afternoon
     for SDZ053>056-059>062-065>071.

     Blizzard Watch from Thursday afternoon through Friday afternoon
     for SDZ050-052-057-058-063-064.

     Winter Storm Watch from Thursday evening through Friday
     afternoon for SDZ038>040.

MN...Blizzard Watch from Thursday evening through Friday evening for
     MNZ071-072-080-081-089-090-097-098.

IA...Blizzard Watch from Thursday evening through Friday evening for
     IAZ001>003-012>014-020>022.

     Winter Storm Watch from Thursday evening through Friday evening
     for IAZ031-032.

NE...Blizzard Watch from Thursday evening through Friday afternoon
     for NEZ013.

     Blizzard Watch from Thursday evening through Friday evening for
     NEZ014.

&&

SHORT TERM...MJ
LONG TERM...JM
AVIATION...

Hazardous Weather Outlook
National Weather Service Sioux Falls SD
1025 PM CST Wed Feb 22 2017

IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097-
098-NEZ013-014-SDZ038>040-050-052>071-240430-
Lyon IA-Osceola-Dickinson-Sioux-O'Brien-Clay IA-Plymouth-Cherokee-
Buena Vista-Woodbury-Ida-Lincoln MN-Lyon MN-Murray-Cottonwood-
Nobles-Jackson-Pipestone-Rock-Dixon-Dakota-Beadle-Kingsbury-
Brookings-Gregory-Jerauld-Sanborn-Miner-Lake-Moody-Brule-Aurora-
Davison-Hanson-McCook-Minnehaha-Charles Mix-Douglas-Hutchinson-
Turner-Lincoln SD-Bon Homme-Yankton-Clay SD-Union-
1025 PM CST Wed Feb 22 2017

This Hazardous Weather Outlook is for portions of northwest Iowa,
west central Iowa, southwest Minnesota, northeast Nebraska,
central South Dakota, east central South Dakota, south central
South Dakota, and southeast South Dakota.

.DAY ONE...Tonight

Hazardous weather is not expected at this time.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

A strong storm system will bring widespread moderate to heavy
snow, along with strong winds, to the region late Thursday through
Friday evening. Snowfall amounts of 6 to 12 inches are likely in
some areas, with locally higher amounts possible. The strong winds
will combine with the snow to create very low visibility,
especially in open areas.

The exact track of this storm remains uncertain, and this could
impact the location of the heaviest snow amounts. Continue to
monitor your local forecast.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed tonight.