Alert archive / Iowa / Winter Storm Watches in 2021
Winter Storm Watch 4, NWS La Crosse, WI
NWS La Crosse, WI issued this winter storm watch at Mar 13, 2021, 3:20 AM CST for Mower County, Minnesota; 5 counties in Iowa. It took effect at Mar 15, 2021, 1:00 AM CDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Mar 13, 2021, 3:20 AM CST (09:20 UTC)
- In effect from
- Mar 15, 2021, 1:00 AM CDT
- Expired
- Mar 14, 2021, 4:06 AM CDT
- In force
- Issued by
- NWS La Crosse, WI
Counties Chickasaw County, IA, Fayette County, IA, Floyd County, IA, Howard County, IA, Mitchell County, IA, Mower County, MN
The radar
The La Crosse radar (KARX), 122 km from the middle of the area, began a volume at 09:25 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 9.3 hours before the alert went out and 202 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
- 1554 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 82 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
524 WWUS43 KARX 130920 WSWARX URGENT - WINTER WEATHER MESSAGE National Weather Service La Crosse WI 320 AM CST Sat Mar 13 2021 ...Winter Weather To Make A Return... .Winter weather looks like it will return to the area starting Sunday night and continue through Monday morning. Accumulating snow is expected with amounts ranging from 4 to 6 inches, with locally higher totals possible. This snow should impact the Monday morning commute with slippery road conditions. In addition, east winds gusting as high as 30 mph will likely create some drifting of the heavy, wet snow. IAZ008-009-018-019-131730- /O.NEW.KARX.WS.A.0004.210315T0600Z-210315T1800Z/ Mitchell-Howard-Floyd-Chickasaw- Including the cities of Osage, Cresco, Charles City, and New Hampton 320 AM CST Sat Mar 13 2021 ...WINTER STORM WATCH IN EFFECT FROM SUNDAY NIGHT THROUGH MONDAY MORNING... * WHAT...Heavy wet snow possible. Total snow accumulations of 4 to 6 inches possible. East winds gusting as high as 30 mph will likely create some drifting snow. * WHERE...Mitchell, Howard, Floyd and Chickasaw Counties. * WHEN...From Sunday night through Monday morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Monday morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ 04
4 follow-up statements
868 WWUS43 KARX 131508 WSWARX URGENT - WINTER WEATHER MESSAGE National Weather Service La Crosse WI 908 AM CST Sat Mar 13 2021 ...Winter Weather Returning on Sunday Night... .Winter weather will move into the area on Sunday night and continue through early Monday afternoon. Accumulating snow is expected with amounts ranging from 4 to 6 inches, with locally higher totals possible. This snow should impact the Monday morning commute with slippery road conditions. In addition, east winds gusting as high as 30 mph will likely create some drifting of the heavy, wet snow. IAZ008-009-018-019-132315- /O.CON.KARX.WS.A.0004.210315T0600Z-210315T1800Z/ Mitchell-Howard-Floyd-Chickasaw- Including the cities of Osage, Cresco, Charles City, and New Hampton 908 AM CST Sat Mar 13 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE SUNDAY NIGHT THROUGH EARLY MONDAY AFTERNOON... * WHAT...Heavy wet snow possible. Total snow accumulations of 4 to 6 inches possible. Locally higher amounts possible. * WHERE...Chickasaw, Floyd, Mitchell and Howard Counties. * WHEN...From late Sunday night through early Monday afternoon. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Monday morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ Boyne
019 WWUS43 KARX 131956 WSWARX URGENT - WINTER WEATHER MESSAGE National Weather Service La Crosse WI 156 PM CST Sat Mar 13 2021 ...Winter Weather Moving in Sunday Night... .Winter weather will move into the area on Sunday night and continue through Monday. Accumulating snow is expected with amounts ranging from 4 to 7 inches, with locally higher totals possible. This snow should impact the Monday morning commute with slippery road conditions. Depending on temperatures, there may be some light icing on Monday afternoon. In addition, east winds gusting as high as 30 mph will likely create some drifting of the heavy, wet snow. IAZ029-MNZ094-140400- /O.EXB.KARX.WS.A.0004.210315T0600Z-210315T2300Z/ Fayette-Mower- Including the cities of Oelwein and Austin 156 PM CST Sat Mar 13 2021 ...WINTER STORM WATCH IN EFFECT FROM LATE SUNDAY NIGHT THROUGH MONDAY AFTERNOON... * WHAT...Heavy wet snow possible. Total snow accumulations of 4 to 6 inches and ice accumulations of a light glaze possible. * WHERE...In Iowa, Fayette County. In Minnesota, Mower County. * WHEN...From late Sunday night through Monday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ IAZ008-009-018-019-140400- /O.EXT.KARX.WS.A.0004.210315T0600Z-210315T2300Z/ Mitchell-Howard-Floyd-Chickasaw- Including the cities of Osage, Cresco, Charles City, and New Hampton 156 PM CST Sat Mar 13 2021 ...WINTER STORM WATCH NOW IN EFFECT FROM LATE SUNDAY NIGHT THROUGH MONDAY AFTERNOON... * WHAT...Heavy wet snow possible. Total snow accumulations of 5 to 7 inches and ice accumulations of a light glaze possible. * WHERE...Chickasaw, Floyd, Mitchell and Howard Counties. * WHEN...From late Sunday night through Monday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ Boyne
934 WWUS43 KARX 140314 WSWARX URGENT - WINTER WEATHER MESSAGE National Weather Service La Crosse WI 914 PM CST Sat Mar 13 2021 ...Winter Weather returns Sunday Night... .Winter weather will move into the area on Sunday night continuing through Monday. Accumulating snow is expected with amounts ranging from 4 to 7 inches. Locally higher totals are possible. This snow would impact the Monday morning commute with slippery road conditions. Depending on temperatures, there may be some light icing Monday afternoon. In addition, east winds gusting as high as 30 mph will likely create some drifting of the heavy, wet snow. IAZ008-009-018-019-029-MNZ094-141200- /O.CON.KARX.WS.A.0004.210315T0600Z-210315T2300Z/ Mitchell-Howard-Floyd-Chickasaw-Fayette-Mower- Including the cities of Osage, Cresco, Charles City, New Hampton, Oelwein, and Austin 914 PM CST Sat Mar 13 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE SUNDAY NIGHT THROUGH MONDAY AFTERNOON... * WHAT...Heavy wet snow possible. Total snow accumulations of 4 to 7 inches and ice accumulations of a light glaze possible. * WHERE...Portions of north central and northeast Iowa and southeast Minnesota. * WHEN...From late Sunday night through Monday afternoon. * IMPACTS...Travel could be difficult. The hazardous conditions could impact the Monday morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ Peters
812 WWUS43 KARX 140906 WSWARX URGENT - WINTER WEATHER MESSAGE National Weather Service La Crosse WI 406 AM CDT Sun Mar 14 2021 ...Accumulating Snow Returns For Tonight And Monday... .Snow will move into areas west of the Mississippi River late tonight and then work northeast through Monday morning. As the snow ends Monday afternoon, there is the potential for some light freezing rain to occur. Accumulations of 3 to 5 inches are expected in the advisory area and up to 6 inches in the warning. Some light icing will be possible if the freezing rain occurs. In addition, east winds gusting as high as 30 mph will likely create some drifting snow. The winter weather could impact both the morning and evening commutes Monday. IAZ018-141715- /O.UPG.KARX.WS.A.0004.210315T0600Z-210315T2300Z/ /O.NEW.KARX.WS.W.0004.210315T0900Z-210315T2100Z/ Floyd- Including the city of Charles City 406 AM CDT Sun Mar 14 2021 ...WINTER STORM WARNING IN EFFECT FROM 4 AM TO 4 PM CDT MONDAY... * WHAT...Heavy mixed precipitation expected. Total snow accumulations of 4 to 6 inches and ice accumulations of a light glaze. Winds gusting as high as 30 mph will likely create some drifting snow. * WHERE...Floyd County. * WHEN...From 4 AM to 4 PM CDT Monday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning or evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ008-009-019-029-MNZ094-141715- /O.UPG.KARX.WS.A.0004.210315T0600Z-210315T2300Z/ /O.NEW.KARX.WW.Y.0009.210315T0900Z-210315T2100Z/ Mitchell-Howard-Chickasaw-Fayette-Mower- Including the cities of Osage, Cresco, New Hampton, Oelwein, and Austin 406 AM CDT Sun Mar 14 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO 4 PM CDT MONDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 3 to 5 inches and ice accumulations of a light glaze. Winds gusting as high as 35 mph will likely create some drifting snow. * WHERE...In Iowa, Mitchell, Howard, Chickasaw and Fayette Counties. In Minnesota, Mower County. * WHEN...From 4 AM to 4 PM CDT Monday. * 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. && $$ IAZ010-030-MNZ086-087-095-141715- /O.NEW.KARX.WW.Y.0009.210315T0900Z-210315T2100Z/ Winneshiek-Clayton-Dodge-Olmsted-Fillmore- Including the cities of Decorah, Elkader, Dodge Center, Rochester, and Preston 406 AM CDT Sun Mar 14 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO 4 PM CDT MONDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 2 to 4 inches and ice accumulations of a light glaze. * WHERE...In Iowa, Winneshiek and Clayton Counties. In Minnesota, Dodge, Olmsted and Fillmore Counties. * WHEN...From 4 AM to 4 PM CDT Monday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IAZ011-MNZ079-088-096-WIZ032-033-041-053>055-061-141715- /O.NEW.KARX.WW.Y.0009.210315T1200Z-210316T0000Z/ Allamakee-Wabasha-Winona-Houston-Buffalo-Trempealeau-La Crosse- Vernon-Crawford-Richland-Grant- Including the cities of Waukon, Wabasha, Winona, Caledonia, Alma, Arcadia, Whitehall, La Crosse, Viroqua, Prairie Du Chien, Richland Center, and Platteville 406 AM CDT Sun Mar 14 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 7 AM TO 7 PM CDT MONDAY... * WHAT...Mixed precipitation expected. Total snow accumulations of 2 to 4 inches and ice accumulations of around one tenth of an inch. * WHERE...Portions of southwest and west central Wisconsin, northeast Iowa and southeast Minnesota. * WHEN...From 7 AM to 7 PM CDT Monday. * 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. && $$ 04
Nearby
Winter Storm Watches in Iowa, 2021Winter Storm Watches in Minnesota, 2021Every winter storm watch in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.