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Awinter storm watch is issued by theNational Weather Service of theUnited States when there is a possibility of heavysnow or potential of significantice accumulations, without meeting a specific other winter criteria. The watch is typically issued 12 to 48 hours before the storm's expected arrival in the given area.[1] The criteria for this watch can vary from place to place, which is true with other winter weather warning and advisories.[citation needed]
As the event of the storm draws nearer in time and confidence in the occurrence of significant winter weather conditions and accumulation is increased, the weather watch will be upgraded to awinter storm warning orblizzard warning, depending on whether blizzard conditions will be met. If there is considerable confidence in significant ice accumulations with little to no snow, the watch will be upgraded to anice storm warning. When confidence increases in the occurrence of winter like conditions that are not expected to reach warning or other winter criteria, awinter weather advisory will be issued instead. A watch could be discontinued altogether if neither warning nor advisory-level conditions are expected to be met and when the possibility of a winter storm fades. Generally, a watch is not issued when only advisory-level conditions are expected.[2][3] Watches generally go into effect when the chance of meeting warning criteria ranges from 50% to 80% of snow.[3]
095 WWUS43 KMPX 030922WSWLOTURGENT - WINTER WEATHER MESSAGENATIONAL WEATHER SERVICE Twin Cites/Chanhassen322 AM CST Wed Feb 28 2021...SNOW AND BLOWING EXPECTED THURSDAY WITH SOME POTENTIAL FOR BLIZZARD CONDITIONS ALSO ACROSS SOUTH CENTRAL MINNESOTA Rain, snow, and possibly some freezing rainwill develop latetonight, mostly across southern and eastern Minnesota intowestern Wisconsin. A cold front will pass through Thursday morningwith temperatures falling from the low to mid 30s to the teens inthe afternoon. Precipitation will become widespread and turn tosnow quickly early Thursday morning following the cold front. Snowwill end from west to east in the afternoon and early evening.Total snow accumulations of 3 to 6 inches are expected acrosssouth central Minnesota into west central Wisconsin, with thehighest totals of around 6 inches along and east of a line fromEau Claire to Ladysmith.In addition to the snow, strong northwest winds with gusts of 35to 45 mph are expected Thursday through early Thursday evening.There is some potential for blizzard conditions across southcentral Minnesota where the strongest gusts are likely to occur.Much of this risk will depend on how much snow falls.A Winter Storm Watch is in effect Thursday through Thursdayevening south and east of a line from St. James, to Mankato, RedWing, Eau Claire, and Ladysmith.MNZ078-WIZ016-026>028-032100-/O.NEW.KMPX.WS.A.0003.210204T1200Z-210205T0300Z/Goodhue-Rusk-Pepin-Chippewa-Eau Claire-Including the cities of Red Wing, Ladysmith, Durand,Chippewa Falls, and Eau Claire322 AM CST Wed Feb 3 2021...WINTER STORM WATCH IN EFFECT FROM THURSDAY MORNING THROUGHTHURSDAY EVENING...* WHAT...Heavy snow possible. Total snow accumulations of 4 to 7 inches possible. Winds could gust as high as 40 mph.* WHERE...In Wisconsin, Rusk, Pepin, Chippewa and Eau Claire Counties. In Minnesota, Goodhue County.* WHEN...From Thursday morning through Thursday evening.* IMPACTS...Plan on slippery road conditions. Patchy blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening commute.PRECAUTIONARY/PREPAREDNESS ACTIONS...Monitor the latest forecasts for updates on this situation.&&$$MNZ077-082>085-091>093-032100-/O.NEW.KMPX.WS.A.0003.210204T1200Z-210205T0300Z/Rice-Watonwan-Blue Earth-Waseca-Steele-Martin-Faribault-Freeborn-Including the cities of Faribault, St James, Mankato, Waseca,Owatonna, Fairmont, Blue Earth, and Albert Lea322 AM CST Wed Feb 3 2021...WINTER STORM WATCH IN EFFECT FROM THURSDAY MORNING THROUGHTHURSDAY EVENING...* WHAT...Blizzard conditions possible. Total snow accumulations around 3 inches possible. Winds could gust as high as 45 mph.* WHERE...Portions of south central Minnesota.* WHEN...From Thursday morning through Thursday evening.* IMPACTS...Plan on slippery road conditions. Areas of blowing snow could significantly reduce visibility. The hazardous conditions could impact the morning or evening commute.PRECAUTIONARY/PREPAREDNESS ACTIONS...Prepare for possible blizzard conditions. Continue to monitor thelatest forecasts for updates on this situation.&&$$Borghoff
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