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   FOUS11 KWBC 010630   
   QPFHSD   
      
   Probabilistic Heavy Snow and Icing Discussion   
   NWS Weather Prediction Center College Park MD   
   130 AM EST Sun Feb 1 2026   
      
   Valid 12Z Sun Feb 01 2026 - 12Z Wed Feb 04 2026   
      
      
   ...Southeastern Massachusetts...   
   Day 1...   
      
   The powerful winter storm exiting the Carolinas this morning will=20   
   graze southeastern New England today with generally light snow but=20   
   very gusty winds. WPC probabilities for at least 4 inches of snow=20   
   are 10-30% over Nantucket and into parts of Cape Cod (e.g.,=20   
   Chatham).=20   
      
      
   ...Northern Plains through the Upper Midwest and Great Lakes...=20   
   Days 1-3...   
      
   A surface front will move out of the Upper Midwest into the=20   
   western Great Lakes today then into Michigan and the eastern Great=20   
   Lakes Monday. Snow will be light, generally 1-3", as the system=20   
   remains progressive. Another round of light snow arrives in the=20   
   northern High Plains on Monday and ending Monday night, but totals=20   
   are likely to be below 3 inches. Some areas in the U.P. may see=20   
   several inches of the three-day period with modest lake effect snow   
   behind the front.=20   
      
      
   ...Ohio Valley & Central Appalachians...   
   Day 3...=20   
      
   The shortwave trough responsible for light snow in the northern=20   
   High Plains on Monday will dive into the Middle MS Valley early=20   
   Tuesday morning and race into the OH Valley by Tuesday afternoon=20   
   and the Mid-Atlantic by Wednesday morning. Weak 850-700mb WAA and=20   
   mid-level moisture will favor light snowfall in a west-to-east=20   
   areas. Most snowfall amounts will be generally a coating-2", but=20   
   some upslope enhancement into the central Appalachians may allow=20   
   for a bit more. Here, WPC probabilities for at least 4 inches of=20   
   snow are low (10-20%). Light snow will extend eastward into the=20   
   Mid-Atlantic early Wednesday.   
      
      
   Fracasso   
      
      
   ...Extreme Cold Key Messages are in effect. Please see current Key   
   Messages below...   
      
   https://urldefense.com/v3/__https://www.wpc.ncep.noaa.gov/key_messages/Late=   
   stKeyMessage_1.png__;!!DZ3fjg!9GBpM9epRWaJGrcPUfEKW7ns0MQShIt24-3aSTYra4iBS=   
   yEc4zdUJy3kS0uC9meUdSdqsB6te8uKUm4NjS4o-T7c-Og$=20   
      
      
   $$   
      
   =3D =3D =3D   
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