Alert archive / Iowa / Winter Storm Warnings in 2020
Winter Storm Warning 5, NWS La Crosse, WI
NWS La Crosse, WI issued this winter storm warning at Dec 28, 2020, 2:31 PM CST for 4 counties in Wisconsin; 7 counties in Iowa. It took effect at Dec 29, 2020, 12:00 PM CST. It was in force for 15 hr. 11 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Dec 28, 2020, 2:31 PM CST (20:31 UTC)
- In effect from
- Dec 29, 2020, 12:00 PM CST
- Expired
- Dec 30, 2020, 3:11 AM CST
- In force
- 15 hr
- Issued by
- NWS La Crosse, WI
Counties Allamakee County, IA, Chickasaw County, IA, Clayton County, IA, Fayette County, IA, Floyd County, IA, Howard County, IA, Winneshiek County, IA, Crawford County, WI, Grant County, WI, Richland County, WI, Vernon County, WI
The radar
The La Crosse radar (KARX), 78 km from the middle of the area, began a volume at 20:34 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 29, 5:00 PM CST | SNOW 1.5 | De Soto, WI | SNOWFALL SINCE 230PM. |
| Dec 29, 6:25 PM CST | SNOW 3 | Richland Center, WI | ESTIMATED SNOW TOTAL IN RICHLAND CENTER. |
| Dec 29, 7:15 PM CST | SNOW 2.3 | Calmar, IA | RELAYED VIA SOCIAL MEDIA. |
| Dec 29, 8:00 PM CST | SNOW 3 | New Hampton, IA | |
| Dec 29, 8:11 PM CST | SNOW 4 | Prairie Du Chien, WI | RELAYED VIA SOCIAL MEDIA. |
| Dec 29, 9:05 PM CST | SNOW 4.5 | Glen Haven, WI | RELAYED VIA SOCIAL MEDIA. |
| Dec 29, 9:18 PM CST | SNOW 4 | Elkader, IA | ESTIMATED 4 INCHES. |
| Dec 29, 9:19 PM CST | SNOW 6 | Wadena, IA | |
| Dec 29, 9:41 PM CST | SNOW 1.8 | 5 Ne Stoddard, WI | |
| Dec 30, 12:07 AM CST | SNOW 3 | 3 Ne Bell Center, WI | |
| Dec 30, 2:30 AM CST | SNOW 2.5 | Genoa, WI |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 8.5 hours before the alert went out and 191 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 627 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- -126 m²/s²
- 0-3 km storm-relative helicity
- -52 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
209 WWUS43 KARX 282031 WSWARX URGENT - WINTER WEATHER MESSAGE National Weather Service La Crosse WI 231 PM CST Mon Dec 28 2020 ...Winter Storm Impacts Will Being Late Tuesday and Continue into Wednesday Morning... . A strong winter storm will bring snowfall, heavy at times, to the area beginning in the afternoon Tuesday. Several hours of heavy snow of one inch per hour are expected south of Interstate 90 in the late afternoon and evening. The snow will end from west to east by Wednesday morning to allow clean up to begin. If you have travel planned Tuesday afternoon into Wednesday morning, consider changing your plans, especially if south of Interstate 90. IAZ009>011-018-019-029-030-WIZ053>055-061-291100- /O.UPG.KARX.WS.A.0006.201229T1800Z-201230T1800Z/ /O.NEW.KARX.WS.W.0005.201229T1800Z-201230T1800Z/ Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-Clayton- Vernon-Crawford-Richland-Grant- Including the cities of Cresco, Decorah, Waukon, Charles City, New Hampton, Oelwein, Elkader, Viroqua, Prairie Du Chien, Richland Center, and Platteville 231 PM CST Mon Dec 28 2020 ...WINTER STORM WARNING IN EFFECT FROM NOON TUESDAY TO NOON CST WEDNESDAY... * WHAT...Heavy snow expected. Total snow accumulations of 6 to 10 inches and ice accumulations of a light glaze. * WHERE...Portions of southwest Wisconsin and northeast Iowa. * WHEN...From noon Tuesday to noon Wednesday. Snow is expected to begin during the afternoon and become heavy by the evening commute in most areas. * IMPACTS...Travel could be very difficult. The hazardous conditions will impact the Tuesday evening and Wednesday morning commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WIZ017-029-034-042>044-291100- /O.CON.KARX.WW.Y.0021.201230T0000Z-201230T1800Z/ Taylor-Clark-Jackson-Monroe-Juneau-Adams- Including the cities of Medford, Neillsville, Black River Falls, Sparta, Tomah, Mauston, and Friendship 231 PM CST Mon Dec 28 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM TUESDAY TO NOON CST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 7 inches possible. * WHERE...Portions of central, north central and west central Wisconsin. * WHEN...From 6 PM Tuesday to noon Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact Wednesday morning's commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ008-MNZ079-086>088-094>096-WIZ032-033-041-291100- /O.CON.KARX.WW.Y.0021.201229T1800Z-201230T1800Z/ Mitchell-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston- Buffalo-Trempealeau-La Crosse- Including the cities of Osage, Wabasha, Dodge Center, Rochester, Winona, Austin, Preston, Caledonia, Alma, Arcadia, Whitehall, and La Crosse 231 PM CST Mon Dec 28 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TUESDAY TO NOON CST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 7 inches possible. * WHERE...Portions of west central Wisconsin, north central Iowa and southeast Minnesota. * WHEN...From noon Tuesday to noon CST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the Tuesday evening and Wednesday morning commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ Baumgardt
9 follow-up statements
177 WWUS43 KARX 290325 WSWARX URGENT - WINTER WEATHER MESSAGE National Weather Service La Crosse WI 925 PM CST Mon Dec 28 2020 ...Winter Storm Impacts Tuesday Afternoon into Wednesday Morning... .A powerful winter storm will bring snowfall, heavy at times, to the area Tuesday afternoon into Wednesday morning. Conditions will deteriorate quickly from west to east during the afternoon, impacting the afternoon and evening commutes. Snowfall rates of one inch per hour are expected south of Interstate 90 from late afternoon into the evening, with travel becoming hazardous. Snow will taper off from west to east early Wednesday morning. If you are planning to travel Tuesday afternoon into Wednesday morning, consider changing your plans, especially if south of Interstate 90. IAZ009>011-018-019-029-030-WIZ053>055-061-291215- /O.CON.KARX.WS.W.0005.201229T1800Z-201230T1800Z/ Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-Clayton- Vernon-Crawford-Richland-Grant- Including the cities of Cresco, Decorah, Waukon, Charles City, New Hampton, Oelwein, Elkader, Viroqua, Prairie Du Chien, Richland Center, and Platteville 925 PM CST Mon Dec 28 2020 ...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON TUESDAY TO NOON CST WEDNESDAY... * WHAT...Heavy snow expected. Total snow accumulations of 6 to 10 inches and ice accumulations of a light glaze. * WHERE...Portions of southwest Wisconsin and northeast Iowa. * WHEN...From noon Tuesday to noon CST Wednesday. Snow is expected to begin during the afternoon, becoming heavy by the evening commute. * IMPACTS...Travel could be very difficult. The hazardous conditions will impact the Tuesday evening and Wednesday morning commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WIZ017-029-034-042>044-291215- /O.CON.KARX.WW.Y.0021.201230T0000Z-201230T1800Z/ Taylor-Clark-Jackson-Monroe-Juneau-Adams- Including the cities of Medford, Neillsville, Black River Falls, Sparta, Tomah, Mauston, and Friendship 925 PM CST Mon Dec 28 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM TUESDAY TO NOON CST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 7 inches. * WHERE...Portions of central, north central and west central Wisconsin. * WHEN...From 6 PM Tuesday to noon CST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the Tuesday afternoon and Wednesday morning commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ008-MNZ079-086>088-094>096-WIZ032-033-041-291215- /O.CON.KARX.WW.Y.0021.201229T1800Z-201230T1800Z/ Mitchell-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston- Buffalo-Trempealeau-La Crosse- Including the cities of Osage, Wabasha, Dodge Center, Rochester, Winona, Austin, Preston, Caledonia, Alma, Arcadia, Whitehall, and La Crosse 925 PM CST Mon Dec 28 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TUESDAY TO NOON CST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 7 inches. * WHERE...Portions of west central Wisconsin, north central Iowa and southeast Minnesota. * WHEN...From noon Tuesday to noon CST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the Tuesday afternoon and Wednesday morning commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ LL
364 WWUS43 KARX 290913 WSWARX URGENT - WINTER WEATHER MESSAGE National Weather Service La Crosse WI 313 AM CST Tue Dec 29 2020 ...Winter Storm Impacts This Afternoon into Wednesday Morning... .A winter storm will bring snowfall, heavy at times, to the area this afternoon into Wednesday morning. Conditions will deteriorate quickly from west to east this afternoon, impacting the afternoon and evening commutes. Snowfall rates of one inch per hour are expected south of Interstate 90 from late afternoon into the evening, with travel becoming hazardous. Look for the snow to taper off from west to east early Wednesday morning. If you are planning to travel this afternoon into Wednesday morning, consider changing your plans, especially south of Interstate 90. IAZ009>011-018-019-029-030-WIZ053>055-061-291715- /O.CON.KARX.WS.W.0005.201229T1800Z-201230T1800Z/ Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-Clayton- Vernon-Crawford-Richland-Grant- Including the cities of Cresco, Decorah, Waukon, Charles City, New Hampton, Oelwein, Elkader, Viroqua, Prairie Du Chien, Richland Center, and Platteville 313 AM CST Tue Dec 29 2020 ...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON TODAY TO NOON CST WEDNESDAY... * WHAT...Heavy mixed precipitation expected. Total snow accumulations of 6 to 10 inches and ice accumulations of a light glaze. * WHERE...Portions of southwest Wisconsin and northeast Iowa. * WHEN...From noon today to noon CST Wednesday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WIZ017-029-034-042>044-291715- /O.EXT.KARX.WW.Y.0021.201229T2100Z-201230T1800Z/ Taylor-Clark-Jackson-Monroe-Juneau-Adams- Including the cities of Medford, Neillsville, Black River Falls, Sparta, Tomah, Mauston, and Friendship 313 AM CST Tue Dec 29 2020 ...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 3 PM THIS AFTERNOON TO NOON CST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 6 inches. * WHERE...Portions of central, north central and west central Wisconsin. * WHEN...From 3 PM this afternoon to noon CST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the commutes this evening and Wednesday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ008-MNZ079-086>088-094>096-WIZ032-033-041-291715- /O.CON.KARX.WW.Y.0021.201229T1800Z-201230T1800Z/ Mitchell-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston- Buffalo-Trempealeau-La Crosse- Including the cities of Osage, Wabasha, Dodge Center, Rochester, Winona, Austin, Preston, Caledonia, Alma, Arcadia, Whitehall, and La Crosse 313 AM CST Tue Dec 29 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO NOON CST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 6 inches. * WHERE...Portions of west central Wisconsin, north central Iowa and southeast Minnesota. * WHEN...From noon today to noon CST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ DAS
214 WWUS43 KARX 291358 WSWARX URGENT - WINTER WEATHER MESSAGE National Weather Service La Crosse WI 758 AM CST Tue Dec 29 2020 ...Travel To Deteriorate This Afternoon... .At mid-morning, radar showed snow, heavy at times, across western Iowa. 3-4" of snow had fallen in western Iowa in only a few hours. That snow is headed for the local area and will spread in from west to east this afternoon. By 6 pm, most of northeast Iowa and far southwest Wisconsin will have 3 to 4 inches of fresh snow. Areas north of Interstate 94 will see snow increase in the early evening. Travel is expected to deteriorate rapidly south of Interstate 94 this afternoon and become hazardous by early evening. If you are planning to travel this afternoon into Wednesday morning, consider changing your plans, especially if into Iowa, southern Wisconsin, or northern Illinois. IAZ009>011-018-019-029-030-WIZ053>055-061-292200- /O.CON.KARX.WS.W.0005.201229T1800Z-201230T1800Z/ Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-Clayton- Vernon-Crawford-Richland-Grant- Including the cities of Cresco, Decorah, Waukon, Charles City, New Hampton, Oelwein, Elkader, Viroqua, Prairie Du Chien, Richland Center, and Platteville 758 AM CST Tue Dec 29 2020 ...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON TODAY TO NOON CST WEDNESDAY... * WHAT...Heavy mixed precipitation expected. Total snow accumulations of 6 to 10 inches and ice accumulations of a light glaze. * WHERE...Portions of southwest Wisconsin and northeast Iowa. * WHEN...From noon today to noon CST Wednesday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WIZ017-029-034-042>044-292200- /O.CON.KARX.WW.Y.0021.201229T2100Z-201230T1800Z/ Taylor-Clark-Jackson-Monroe-Juneau-Adams- Including the cities of Medford, Neillsville, Black River Falls, Sparta, Tomah, Mauston, and Friendship 758 AM CST Tue Dec 29 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO NOON CST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 6 inches. * WHERE...Portions of central, north central and west central Wisconsin. * WHEN...From 3 PM this afternoon to noon CST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the commutes this evening and Wednesday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ008-MNZ079-086>088-094>096-WIZ032-033-041-292200- /O.CON.KARX.WW.Y.0021.201229T1800Z-201230T1800Z/ Mitchell-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston- Buffalo-Trempealeau-La Crosse- Including the cities of Osage, Wabasha, Dodge Center, Rochester, Winona, Austin, Preston, Caledonia, Alma, Arcadia, Whitehall, and La Crosse 758 AM CST Tue Dec 29 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO NOON CST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 6 inches. * WHERE...Portions of west central Wisconsin, north central Iowa and southeast Minnesota. * WHEN...From noon today to noon CST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ db
012 WWUS43 KARX 291750 WSWARX URGENT - WINTER WEATHER MESSAGE National Weather Service La Crosse WI 1150 AM CST Tue Dec 29 2020 ...Snow Approaching Northeast Iowa and Southeast Minnesota... .Around noon, radar indicated snow, some heavy, was approaching Interstate 35 in north central Iowa and southern Minnesota. Visibilities in the snow quickly dropped to less than one mile and roads become immediately covered and slick. Expect snow to begin in the early afternoon west of the Mississippi river, shifting into Wisconsin by mid to late afternoon. By 6 pm, most of northeast Iowa and far southwest Wisconsin will have 3 to 4 inches of fresh snow. Areas north of Interstate 94 will see snow increase in the early evening. Travel is expected to deteriorate rapidly once snow begins. If you have travel plans during the storm, consider changing them, especially south of Interstate 90. The storm is moving through slightly faster and thus travel should be improving Wednesday morning. The Advisories and Warnings will now end 3 hours sooner Wednesday morning. IAZ009>011-018-019-029-030-WIZ053>055-061-300200- /O.EXT.KARX.WS.W.0005.201229T1800Z-201230T1500Z/ Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-Clayton- Vernon-Crawford-Richland-Grant- Including the cities of Cresco, Decorah, Waukon, Charles City, New Hampton, Oelwein, Elkader, Viroqua, Prairie Du Chien, Richland Center, and Platteville 1150 AM CST Tue Dec 29 2020 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 9 AM CST WEDNESDAY... * WHAT...Heavy snow. Total snow accumulations of 6 to 10 inches and ice accumulations of a light glaze. * WHERE...Portions of southwest Wisconsin and northeast Iowa. * WHEN...Until 9 AM CST Wednesday. Heavy snow later this afternoon and evening. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WIZ017-029-034-042>044-300200- /O.EXT.KARX.WW.Y.0021.201229T2100Z-201230T1500Z/ Taylor-Clark-Jackson-Monroe-Juneau-Adams- Including the cities of Medford, Neillsville, Black River Falls, Sparta, Tomah, Mauston, and Friendship 1150 AM CST Tue Dec 29 2020 ...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 3 PM THIS AFTERNOON TO 9 AM CST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 6 inches. * WHERE...Portions of central, north central and west central Wisconsin. * WHEN...From 3 PM this afternoon to 9 AM CST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the commutes this evening and Wednesday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ008-MNZ079-086>088-094>096-WIZ032-033-041-300200- /O.EXT.KARX.WW.Y.0021.201229T1800Z-201230T1200Z/ Mitchell-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston- Buffalo-Trempealeau-La Crosse- Including the cities of Osage, Wabasha, Dodge Center, Rochester, Winona, Austin, Preston, Caledonia, Alma, Arcadia, Whitehall, and La Crosse 1150 AM CST Tue Dec 29 2020 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 AM CST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 6 inches. * WHERE...Portions of west central Wisconsin, north central Iowa and southeast Minnesota. * WHEN...Until 6 AM CST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ Baumgardt
327 WWUS43 KARX 292002 WSWARX URGENT - WINTER WEATHER MESSAGE National Weather Service La Crosse WI 202 PM CST Tue Dec 29 2020 ...Accumulating Snow Shifting Into Wisconsin... .Accumulating snow was falling in southeast Minnesota, northeast Iowa, and southwest Wisconsin at mid-afternoon. Travel conditions rapidly deteriorate once the snow begins and visibilities are dropping to about 1/2 mile. The snow will continue to spread into Wisconsin through the late afternoon and accumulate. The afternoon commute will be snowy for many so plan ahead and allow extra time. By 6 pm, several inches of snow are expected west and south of La Crosse. Travel will become hazardous tonight with additional snowfall. If you have travel plans, consider changing them, especially south of Interstate 90. IAZ009>011-018-019-029-030-WIZ053>055-061-300415- /O.CON.KARX.WS.W.0005.000000T0000Z-201230T1500Z/ Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-Clayton- Vernon-Crawford-Richland-Grant- Including the cities of Cresco, Decorah, Waukon, Charles City, New Hampton, Oelwein, Elkader, Viroqua, Prairie Du Chien, Richland Center, and Platteville 202 PM CST Tue Dec 29 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST WEDNESDAY... * WHAT...Heavy snow. Total snow accumulations of 6 to 10 inches and ice accumulations of a light glaze. * WHERE...Portions of southwest Wisconsin and northeast Iowa. * WHEN...Until 9 AM CST Wednesday. Heavy snow later this afternoon and evening. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WIZ017-029-034-042>044-300415- /O.CON.KARX.WW.Y.0021.201229T2100Z-201230T1500Z/ Taylor-Clark-Jackson-Monroe-Juneau-Adams- Including the cities of Medford, Neillsville, Black River Falls, Sparta, Tomah, Mauston, and Friendship 202 PM CST Tue Dec 29 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 5 inches. * WHERE...Portions of central, north central and west central Wisconsin. * WHEN...Through 9 AM CST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the commutes this evening and Wednesday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ008-MNZ079-086>088-094>096-WIZ032-033-041-300415- /O.CON.KARX.WW.Y.0021.000000T0000Z-201230T1200Z/ Mitchell-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston- Buffalo-Trempealeau-La Crosse- Including the cities of Osage, Wabasha, Dodge Center, Rochester, Winona, Austin, Preston, Caledonia, Alma, Arcadia, Whitehall, and La Crosse 202 PM CST Tue Dec 29 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 5 inches. * WHERE...Portions of west central Wisconsin, north central Iowa and southeast Minnesota. * WHEN...Until 6 AM CST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ Baumgardt
376 WWUS43 KARX 300058 WSWARX URGENT - WINTER WEATHER MESSAGE National Weather Service La Crosse WI 658 PM CST Tue Dec 29 2020 ...Accumulating Snow Continues For Parts of the Area... .Accumulating snow continues for parts of eastern Iowa into western Wisconsin. The dry air has worked into parts of southeast Minnesota and northern Iowa, shutting down much of the accumulating snow. The heavier snow and reduced visibilities of a half mile or less are expected across far eastern Iowa and parts of southeast Wisconsin through early evening. The snow will continue to diminish from west to east with the highest amounts across the warned area. Some freezing drizzle is possible, so with the snow covered roads and some patchy drizzle, the winter weather advisory remains in place. IAZ009-010-018-019-WIZ053-300900- /O.CAN.KARX.WS.W.0005.000000T0000Z-201230T1500Z/ /O.EXA.KARX.WW.Y.0021.000000T0000Z-201230T1200Z/ Howard-Winneshiek-Floyd-Chickasaw-Vernon- Including the cities of Cresco, Decorah, Charles City, New Hampton, and Viroqua 658 PM CST Tue Dec 29 2020 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM CST WEDNESDAY... ...WINTER STORM WARNING IS CANCELLED... * WHAT...Snow. Additional snow accumulations of up to two inches. * WHERE...In Wisconsin, Vernon County. In Iowa, Howard, Winneshiek, Floyd and Chickasaw Counties. * WHEN...Until 6 AM CST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ011-029-030-WIZ054-055-061-300900- /O.CON.KARX.WS.W.0005.000000T0000Z-201230T1500Z/ Allamakee-Fayette-Clayton-Crawford-Richland-Grant- Including the cities of Waukon, Oelwein, Elkader, Prairie Du Chien, Richland Center, and Platteville 658 PM CST Tue Dec 29 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST WEDNESDAY... * WHAT...Heavy snow. Additional snow accumulations of up to two inches. * WHERE...Portions of southwest Wisconsin and northeast Iowa. * WHEN...Until 9 AM CST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WIZ017-029-034-042>044-300900- /O.CON.KARX.WW.Y.0021.000000T0000Z-201230T1500Z/ Taylor-Clark-Jackson-Monroe-Juneau-Adams- Including the cities of Medford, Neillsville, Black River Falls, Sparta, Tomah, Mauston, and Friendship 658 PM CST Tue Dec 29 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST WEDNESDAY... * WHAT...Snow. Additional snow accumulations of up to two inches. * WHERE...Portions of central, north central and west central Wisconsin. * WHEN...Until 9 AM CST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ008-MNZ079-086>088-094>096-WIZ032-033-041-300900- /O.CON.KARX.WW.Y.0021.000000T0000Z-201230T1200Z/ Mitchell-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston- Buffalo-Trempealeau-La Crosse- Including the cities of Osage, Wabasha, Dodge Center, Rochester, Winona, Austin, Preston, Caledonia, Alma, Arcadia, Whitehall, and La Crosse 658 PM CST Tue Dec 29 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST WEDNESDAY... * WHAT...Snow. Additional snow accumulations trace to one inch. Some patchy freezing drizzle possible. * WHERE...Portions of west central Wisconsin, north central Iowa and southeast Minnesota. * WHEN...Until 6 AM CST Wednesday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ Zapotocny
600 WWUS43 KARX 300301 WSWARX URGENT - WINTER WEATHER MESSAGE National Weather Service La Crosse WI 901 PM CST Tue Dec 29 2020 The snow will continue to diminish from west to east with the highest snow amounts across parts of southwest Wisconsin. Some freezing drizzle is possible. Snow covered roads will make travel slippery to hazardous. IAZ011-029-301115- /O.CAN.KARX.WS.W.0005.000000T0000Z-201230T1500Z/ /O.EXA.KARX.WW.Y.0021.000000T0000Z-201230T1200Z/ Allamakee-Fayette- Including the cities of Waukon and Oelwein 901 PM CST Tue Dec 29 2020 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM CST WEDNESDAY... ...WINTER STORM WARNING IS CANCELLED... * WHAT...Snow and some patchy freezing drizzle. Additional snow accumulations a trace to one inch. * WHERE...Allamakee and Fayette Counties. * WHEN...Until 6 AM CST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ030-WIZ054-055-061-301115- /O.CON.KARX.WS.W.0005.000000T0000Z-201230T1500Z/ Clayton-Crawford-Richland-Grant- Including the cities of Elkader, Prairie Du Chien, Richland Center, and Platteville 901 PM CST Tue Dec 29 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST WEDNESDAY... * WHAT...Snow and some patchy freezing drizzle. Some additional snow accumulations of an inch or two for far southern Wisconsin. * WHERE...In Iowa, Clayton County. In Wisconsin, Grant, Richland and Crawford Counties. * WHEN...Until 9 AM CST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WIZ017-029-034-042>044-301115- /O.CON.KARX.WW.Y.0021.000000T0000Z-201230T1500Z/ Taylor-Clark-Jackson-Monroe-Juneau-Adams- Including the cities of Medford, Neillsville, Black River Falls, Sparta, Tomah, Mauston, and Friendship 901 PM CST Tue Dec 29 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST WEDNESDAY... * WHAT...Snow and some patchy freezing drizzle. Additional snow accumulations of a trace to one inch. * WHERE...Portions of central, north central and west central Wisconsin. * WHEN...Until 9 AM CST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ008>010-018-019-MNZ079-086>088-094>096-WIZ032-033-041-053- 301115- /O.CON.KARX.WW.Y.0021.000000T0000Z-201230T1200Z/ Mitchell-Howard-Winneshiek-Floyd-Chickasaw-Wabasha-Dodge-Olmsted- Winona-Mower-Fillmore-Houston-Buffalo-Trempealeau-La Crosse- Vernon- Including the cities of Osage, Cresco, Decorah, Charles City, New Hampton, Wabasha, Dodge Center, Rochester, Winona, Austin, Preston, Caledonia, Alma, Arcadia, Whitehall, La Crosse, and Viroqua 901 PM CST Tue Dec 29 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST WEDNESDAY... * WHAT...Snow and some patchy freezing drizzle. Additional snow accumulations of a trace to one inch. * WHERE...Portions of southwest and west central Wisconsin, north central and northeast Iowa and southeast Minnesota. * WHEN...Until 6 AM CST Wednesday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ Zapotocny
044 WWUS43 KARX 300358 WSWARX URGENT - WINTER WEATHER MESSAGE National Weather Service La Crosse WI 958 PM CST Tue Dec 29 2020 Some snow showers continue to push across the area. Additional snow amounts will be minimal. Some freezing drizzle is possible. Snow covered roads will make travel slippery to hazardous. IAZ030-WIZ054-055-301200- /O.CAN.KARX.WS.W.0005.000000T0000Z-201230T1500Z/ /O.EXA.KARX.WW.Y.0021.000000T0000Z-201230T1200Z/ Clayton-Crawford-Richland- Including the cities of Elkader, Prairie Du Chien, and Richland Center 958 PM CST Tue Dec 29 2020 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM CST WEDNESDAY... ...WINTER STORM WARNING IS CANCELLED... * WHAT...Snow and some patchy freezing drizzle. Additional snow accumulations a trace to one inch. * WHERE...In Wisconsin, Crawford and Richland Counties. In Iowa, Clayton County. * WHEN...Until 6 AM CST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WIZ061-301200- /O.CON.KARX.WS.W.0005.000000T0000Z-201230T1500Z/ Grant- Including the city of Platteville 958 PM CST Tue Dec 29 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST WEDNESDAY... * WHAT...Snow and some patchy freezing drizzle. Additional snow accumulations a trace to one inch. * WHERE...Grant County. * WHEN...Until 9 AM CST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WIZ017-029-034-042>044-301200- /O.CON.KARX.WW.Y.0021.000000T0000Z-201230T1500Z/ Taylor-Clark-Jackson-Monroe-Juneau-Adams- Including the cities of Medford, Neillsville, Black River Falls, Sparta, Tomah, Mauston, and Friendship 958 PM CST Tue Dec 29 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST WEDNESDAY... * WHAT...Snow and some patchy freezing drizzle. Additional snow accumulations a trace to one inch. * WHERE...Portions of central, north central and west central Wisconsin. * WHEN...Until 9 AM CST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ008>011-018-019-029-MNZ079-086>088-094>096-WIZ032-033-041-053- 301200- /O.CON.KARX.WW.Y.0021.000000T0000Z-201230T1200Z/ Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette- Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston-Buffalo- Trempealeau-La Crosse-Vernon- Including the cities of Osage, Cresco, Decorah, Waukon, Charles City, New Hampton, Oelwein, Wabasha, Dodge Center, Rochester, Winona, Austin, Preston, Caledonia, Alma, Arcadia, Whitehall, La Crosse, and Viroqua 958 PM CST Tue Dec 29 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST WEDNESDAY... * WHAT...Snow and some patchy freezing drizzle. Additional snow accumulations a trace to one inch. * WHERE...Portions of southwest and west central Wisconsin, north central and northeast Iowa and southeast Minnesota. * WHEN...Until 6 AM CST Wednesday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ Zapotocny
314 WWUS43 KARX 300911 WSWARX URGENT - WINTER WEATHER MESSAGE National Weather Service La Crosse WI 311 AM CST Wed Dec 30 2020 Some light snow, mixing with or changing to freezing drizzle continues to push across the area. Additional snow amounts will be minimal with possibly some glazing from the freezing drizzle. The combination of this light precipitation and snow covered roads will make travel slippery to hazardous early this morning. WIZ061-301500- /O.CAN.KARX.WS.W.0005.000000T0000Z-201230T1500Z/ /O.EXA.KARX.WW.Y.0021.000000T0000Z-201230T1500Z/ Grant- Including the city of Platteville 311 AM CST Wed Dec 30 2020 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 9 AM CST THIS MORNING... ...WINTER STORM WARNING IS CANCELLED... The National Weather Service in La Crosse has issued a Winter Weather Advisory for Grant County, which is in effect until 9 AM CST this morning. The Winter Storm Warning has been cancelled. * WHAT...Snow and some patchy freezing drizzle. Additional snow accumulations a trace to one inch. Light glaze possible from freezing drizzle. * WHERE...Portions of central, north central and west central Wisconsin. * WHEN...Until 9 AM CST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ008-009-018-019-MNZ086-087-094-095-301015- /O.CAN.KARX.WW.Y.0021.000000T0000Z-201230T1200Z/ Mitchell-Howard-Floyd-Chickasaw-Dodge-Olmsted-Mower-Fillmore- Including the cities of Osage, Cresco, Charles City, New Hampton, Dodge Center, Rochester, Austin, and Preston 311 AM CST Wed Dec 30 2020 ...WINTER WEATHER ADVISORY IS CANCELLED... The National Weather Service in La Crosse has cancelled the Winter Weather Advisory. Precipitation has moved out of the area. Therefore, the Winter Weather Advisory has been cancelled. $$ WIZ017-029-034-042>044-301500- /O.CON.KARX.WW.Y.0021.000000T0000Z-201230T1500Z/ Taylor-Clark-Jackson-Monroe-Juneau-Adams- Including the cities of Medford, Neillsville, Black River Falls, Sparta, Tomah, Mauston, and Friendship 311 AM CST Wed Dec 30 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING... * WHAT...Snow and some patchy freezing drizzle. Additional snow accumulations a trace to one inch. Light glaze possible from the freezing drizzle. * WHERE...Portions of central, north central and west central Wisconsin. * WHEN...Until 9 AM CST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ010-011-029-030-MNZ079-088-096-WIZ032-033-041-053>055-301200- /O.CON.KARX.WW.Y.0021.000000T0000Z-201230T1200Z/ Winneshiek-Allamakee-Fayette-Clayton-Wabasha-Winona-Houston- Buffalo-Trempealeau-La Crosse-Vernon-Crawford-Richland- Including the cities of Decorah, Waukon, Oelwein, Elkader, Wabasha, Winona, Caledonia, Alma, Arcadia, Whitehall, La Crosse, Viroqua, Prairie Du Chien, and Richland Center 311 AM CST Wed Dec 30 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST EARLY THIS MORNING... * WHAT...Snow and some patchy freezing drizzle. Additional snow accumulations a trace to one inch. Light glaze possible from the freezing drizzle. * WHERE...Portions of southwest and west central Wisconsin, north central and northeast Iowa and southeast Minnesota. * WHEN...Until 6 AM CST Wednesday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ DAS
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 La Crosse, WI wrote its last area forecast discussion before this winter storm warning went out at Dec 28, 11:05 AM CST, 3 hours 26 minutes earlier.
Area forecast discussion, Dec 28, 11:05 AM CST, 3 hours 26 minutes before
Area Forecast Discussion
National Weather Service La Crosse WI
1105 AM CST Mon Dec 28 2020
.SHORT TERM...(This afternoon through Tuesday)
Issued at 1102 AM CST Mon Dec 28 2020
No changes are expected to the Advisories or Watches at mid-day.
Clouds continue to stream southeast today per GOES satellite
imagery with a sharp wind shift along an arctic front making its
way through MN. At 17Z the front was located along a DLH-ABR line
with colder air behind...mainly the single digits above zero.
There were also some flurries along the front in the
observations. Some pockets of light snow were also falling across
northwest WI and have added some scattered snow showers in the
forecast this afternoon north of highway 29 in WI.
The arctic front moves through in the early evening with some
flurries and clouds. While there are breaks across the
Dakotas...no confident these will completely clear the area
tonight. Might be kind of messy.
Timing still looks on track for a late afternoon arrival of snow
from southwest to northeast. By 7 pm, the entire local area should
be snowing with accumulations across northeast IA and southwest WI
affecting the commute /possibly 1-2"/ by early evening.
.LONG TERM...(Tuesday through Sunday)
Issued at 409 AM CST Mon Dec 28 2020
Winter storm still on track to bring widespread several inches of
snow to the local area Tuesday afternoon into Wednesday morning.
Latest trends among most deterministic and ensemble guidance
favors a slight southward shift in storm track and thus the axis
of heavier QPF. For now, this places northeast Iowa and southwest
Wisconsin in the crosshairs for the heaviest snow within our
forecast area, and confidence is high enough at this point to
hoist a Winter Storm Watch for potential of 6 to locally up to
8". Elsewhere, confidence at this time is high enough for at least
a few inches of snowfall (generally 4 to locally up to 6"), so in
coordination with western neighbors have hoisted a Winter Weather
Advisory for the rest of the forecast area. But will have to
closely monitor trends over the next 24 hours to see if this
southward shift continues, as the NAM and RAP still bring some heavier
QPF a bit further north. Continue to monitor the forecast for the
latest on this evolving storm system.
The snow will lift northeast into the area towards midday Tuesday,
likely spreading east of the Mississippi River by mid to late
afternoon and into central/north-central WI by early evening.
Guidance continues to show it falling heaviest Tuesday evening and
into the early morning hours on Wednesday. Can't rule out snow rates
of an inch or more per hour across northeast IA/southwest WI during
that timeframe with a nice conjunction of stronger lift and deep
saturation through the dendritic growth zone. By early Wednesday
morning the dry slot will begin to punch into the area from the
southwest, which will steadily eat away at our saturation from top
down through daybreak and bring an end to the accumulating snow.
Depending on how fast the moisture strips out from aloft, we could
end up with a period of light freezing drizzle as the snow tapers
off, which would be most likely across our southern counties. GEFS
and EPS members continue to support this possibility of light
freezing drizzle early Wednesday morning. Maybe a light glaze
possible in the watch area.
Expecting widespread impacts to travel across the region as this
storm pushes through, though the worst of it will be during the
nighttime hours. Nevertheless, some areas will have their Tuesday
evening commutes impacted and most will likely have a slow, very
slippery Wednesday morning commute. Snow ratios look to range from
around 9:1 in the south (leaning towards wetter/heavier type) to
near 12:1 in the north (not as wet/heavy) through this event.
Looking beyond, there's an increasing signal for a New Year's Day
snow event from a system lifting into the Great Lakes region. Old
man winter continues to deliver as of late, so once we get done
with this impending storm we'll have plenty more to talk about!
&&
.AVIATION...(For the 18Z TAFS through 18Z Tuesday afternoon)
Issued at 1102 AM CST Mon Dec 28 2020
As an arctic front moves through the airfields during the early
evening, it appears MVFR or lower VFR ceilings could affect the
TAF sites for a period. Some light snow showers will probably
also be around but these should maintain VFR visibilities, or
very briefly cause 5SM. No accumulation is expected this evening.
These clouds are forecast to dissipate during the overnight.
IFR snow is expected at the TAF sites by later afternoon Tuesday
continuing into Wednesday morning.
&&
.ARX WATCHES/WARNINGS/ADVISORIES...
WI...Winter Storm Watch from Tuesday afternoon through Wednesday
morning for WIZ053>055-061.
Winter Weather Advisory from 6 PM Tuesday to noon CST Wednesday
for WIZ017-029-034-042>044.
Winter Weather Advisory from noon Tuesday to noon CST Wednesday
for WIZ032-033-041.
MN...Winter Weather Advisory from noon Tuesday to noon CST Wednesday
for MNZ079-086>088-094>096.
IA...Winter Storm Watch from Tuesday afternoon through Wednesday
morning for IAZ009>011-018-019-029-030.
Winter Weather Advisory from noon Tuesday to noon CST Wednesday
for IAZ008.
&&
SHORT TERM...Baumgardt
LONG TERM...Kurz
AVIATION...BaumgardtHazardous weather outlook, Dec 28, 4:59 AM CST, 9 hours 32 minutes before
Hazardous Weather Outlook National Weather Service La Crosse WI 459 AM CST Mon Dec 28 2020 IAZ008-MNZ079-086>088-094>096-WIZ017-029-032>034-041>044-291200- Mitchell-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston- Taylor-Clark-Buffalo-Trempealeau-Jackson-La Crosse-Monroe-Juneau- Adams- 459 AM CST Mon Dec 28 2020 This Hazardous Weather Outlook is for portions of north central Iowa...southeast Minnesota...central Wisconsin...north central Wisconsin and west central Wisconsin. .DAY ONE...Today and Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday Winter Weather Advisory in effect from Tuesday afternoon through Wednesday morning with widespread travel impacts expected. Widespread snowfall of 4 to locally up to 6 inches is expected, the bulk of which will fall Tuesday night. However, the track of this winter storm may still shift which would cause current forecast snow totals to change. A brief period of light freezing drizzle may also occur Wednesday morning as the snow tapers off. Another system may bring additional wintry precipitation to a portion of the area heading into New Year's Day, but it is too early to determine potential amounts and impacts. .SPOTTER INFORMATION STATEMENT... Snowfall reports will be appreciated. .EMERGENCY MANAGEMENT COORDINATION... A webinar is scheduled for 2 PM today. IAZ009>011-018-019-029-030-WIZ053>055-061-291200- Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-Clayton- Vernon-Crawford-Richland-Grant- 459 AM CST Mon Dec 28 2020 This Hazardous Weather Outlook is for portions of north central Iowa...northeast Iowa and southwest Wisconsin. .DAY ONE...Today and Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday Winter Storm Watch in effect from Tuesday afternoon through Wednesday morning with hazardous travel possible. Snowfall in excess of 6 inches is possible, the bulk of which will fall Tuesday night. However, the track of this winter storm may still shift which would cause current forecast snow totals to change. A brief period of light freezing drizzle may also occur early Wednesday morning as the snow tapers off. Another system may bring additional wintry precipitation to a portion of the area heading into New Year's Day, but it is too early to determine potential amounts and impacts. .SPOTTER INFORMATION STATEMENT... Snowfall reports will be appreciated. .EMERGENCY MANAGEMENT COORDINATION... A webinar is scheduled for 2 PM today. Kurz
The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 28, 3:45 AM CST | Winter Storm Watch | ARX | Crawford, Grant, Richland, Vernon | 11 hr |
| Dec 28, 3:45 AM CST | Winter Weather Advisory | ARX | Adams, Buffalo, Clark, Crawford, Grant, Jackson and 7 more | 53 hr |
Nearby
Winter Storm Warnings in Iowa, 2020Winter Storm Warnings in Wisconsin, 2020Every winter storm warning in 2020
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.