March Roars in...Like January...Across Wyoming
March 10, 2003 - A strong westerly flow and abundant Pacific moisture, a weather pattern more characteristic of January, brought heavy snow to the mountains of western Wyoming from March 5th through the morning of March 7th. Also, a series of upper level disturbances aided in the heavy snowfall. In addition, strong winds produced considerable blowing and drifting snow, causing blizzard conditions in the Jackson Valley on the morning of March 6th. Also, blowing and drifting snow and southwest winds of 30 to 40 mph resulted in US 89 being impassable between Moose and Moran Junction on March 5th. On the morning of March 6th, snow drifts of 3 to 4 feet north of Afton stranded several motorists. Later that evening (around 11 PM), the summit of Rendezvous Peak at the Jackson Hole Ski Resort reported a wind gust of 93 mph. The summit also clocked a wind gust of 84 mph on March 7th around midnight.
The Arctic express made a return to northern Wyoming on the night of March 5th and March 6th . An Arctic cold front moved south across the area, then hit the brakes across central Wyoming, near a Casper to Thermopolis to Cody line. High temperatures across eastern Park, Big Horn, Washakie and Johnson counties from March 6th through March 8th ranged from zero to 10 above and lows were zero to 10 below. These temperatures are much below normal for early March. In addition, some localized heavy snow occurred around Cody, to areas north of Cody on March 6th.