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 >

Pictures from around western Colorado and eastern Utah

Significant Weather Phenomena to Report to the National Weather Service

Large thunder storm over city at sunset

Tornado, Funnel Cloud, or Wall Cloud
Hail of any size
Wind gusts greater than 40 mph
Heavy rain and/or high rainfall rates
Flash Flooding
Street, parking lot, or underpass flooding
Weather-related damage of any kind
Unusual or questionable weather
Heavy snow or high snowfall rates
Dense Fog or Smoke (visibilities less than 1/2 mile)

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