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   FOUS11 KWBC 190800   
   QPFHSD   
      
   Probabilistic Heavy Snow and Icing Discussion   
   NWS Weather Prediction Center College Park MD   
   300 AM EST Wed Nov 19 2025   
      
   Valid 12Z Wed Nov 19 2025 - 12Z Sat Nov 22 2025   
      
   ...California through the Southern Rockies...   
   Days 1-3...   
      
   An upper low centered over Southern California this morning will   
   slowly translate eastward over the next 24 hours before the next in   
   a series of developing lows approaches the coast and begins to   
   eject it eastward. As the leading low moves east, it will continue   
   to direct deeper moisture and associated mid level energy farther   
   inland. With high snow levels in place at the onset, there will be   
   little threat for widespread heavy snow accumulations through early   
   Thursday. WPC's Day 1 probabilities shows the threat for   
   accumulations above 6 inches to be isolated and mostly confined to   
   the higher peaks of the southern Utah Mountains, the San Francisco   
   Peaks and White Mountains in Arizona, and the San Juans in   
   southwestern Colorado.   
      
   As the leading system moves east, the extent of light snow   
   accumulations is forecast to increase across the Colorado and   
   northern New Mexico ranges. However, accumulations greater than 6   
   inches will likely be limited to areas in the San Juans and Sangre   
   de Cristos above 10,000 ft.   
      
   Meanwhile, mountain snow will spread quickly south across   
   California from the southern Cascades to the northern Transverse   
   Ranges on Thursday. Given the progressive nature of this second   
   system and more modest moisture, widespread heavy snow   
   accumulations are unlikely. WPC probabilities for 24 hour amounts   
   exceeding 6 inches are limited mostly to the higher peaks of the   
   Sierra Nevada.   
      
   Similar to its predecessor, this second low is expected to settle   
   and linger over Southern California Friday into Saturday. The   
   footprint for heavy snow is expected to become even more   
   confined, limited to the higher peaks of the Transverse Ranges and   
   perhaps the southern Nevada mountains.   
      
   Pereira   
      
   $$   
      
   = = =   
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