National Weather Service United States Department of Commerce

Arctic Air Bringing Cold Temperatures to the Eastern Half of the U.S.; Strong Clipper System Wednesday and Thursday

Arctic air will continue below normal temperatures across the eastern half of the U.S. through today. A strengthening clipper storm will track north of the Great Lakes midweek with a widespread snow and gusty to strong winds through the region and into the Northeast U.S. followed by some lake effect snow. Read More >

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Synopsis
PERIOD 1 PERIOD 2
Weather Comment: None Weather Comment: None
Alta Guard Temperature (°F) Snow
Amount
Probability
Snow
Water Eq.
Probability
Snow Level (kFt) Alta Guard Temperature (°F) Snow
Amount
Probability
Snow
Water Eq.
Probability
Snow Level (kFt)
               
Snow Rate (in/hr) Average Peak Snow Rate (in/hr) Average Peak
           
Snow Comment: None Snow Comment: None
Wind (MPH) 12 Hr Average Direction Gust (Peak) Wind (MPH) 12 Hr Average Direction Gust (Peak)
9000' Ridgelines       9000' Ridgelines      
11000' Ridgelines       11000' Ridgelines      
Wind Comment: None Wind Comment: None
Probability of Lightning (%) Probability of Lightning (%)
   
Storm Totals
Storm Duration Storm Total Water Storm Total Snow
N/A N/A N/A
Remarks: None
           
Issuance
Synopsis
PERIOD 1 PERIOD 2
Weather Comment: None Weather Comment: None
Alta Guard Temperature (°F) Snow
Amount
Probability
Snow
Water Eq.
Probability
Alta Guard Temperature (°F) Snow
Amount
Probability
Snow
Water Eq.
Probability
 
Snow Level (kFt)
 
 
 
 
 
 
 
 
Snow Level (kFt)
 
 
 
 
 
 
 
Snow Comment: None Snow Comment: None
Precipitation Intensity (in/hour) - Snow Precipitation Intensity (in/hour) - Snow click for Water
   
Precipitation Intensity (in/hour) - Water Precipitation Intensity (in/hour) - Water click for Snow
   
Snow Density (%) Snow Density (%)click for SLR
   
Snow-Liquid Ratio Snow-Liquid Ratio click for Density
   
Wind Comment: None Wind Comment: None
9,000 ft Wind (mph) 9,000 ft Wind (mph)
   
11,000 ft Wind - Mt Baldy (mph) 11,000 ft Wind - Mt Baldy (mph)
   
Probability of Lightning (%) Probability of Lightning (%)
   
Storm Totals
Storm Duration Storm Total Water Storm Total Snow
N/A N/A N/A
Remarks: None
 
 
           
Issuance
PERIOD 1 PERIOD 2
Weather Comment: None Weather Comment: None
Temperature (°F) Snow
Amount
Probability
Snow
Water Eq.
Probability
Temperature (°F) Snow
Amount
Probability
Snow
Water Eq.
Probability
 
Snow Level (kFt)
 
 
 
 
 
 
 
 
Snow Level (kFt)
 
 
 
 
 
 
 
Precipitation Intensity (in/hour) - Snow Precipitation Intensity (in/hour) - Snow click for Water
   
Precipitation Intensity (in/hour) - Water Precipitation Intensity (in/hour) - Water click for Snow
   
Snow Density (%) Snow Density (%)click for SLR
   
Snow-Liquid Ratio Snow-Liquid Ratio click for Density
   
Surface Wind (mph) Surface Wind (mph)
   
700 mb Wind (mph) 700 mb Wind (mph)
   
Probability of Lightning (%) Probability of Lightning (%)