Weather Underground midday recap for Thursday, December 12, 2013
A few areas of active weather developed across the country on Thursday, while most of the East remained dry but cold. A ridge of high pressure built over the Eastern states and continued to pull cool air in from Canada. This allowed for temperatures to remain 10 to 20 degrees below normal from the the Great Lakes and Northeast through the Gulf states. In the North, a low pressure system moved over the Great Lakes and into eastern Canada. The back side of this system picked up moisture from the Great Lakes and produced lake effect snow showers along the downwind shores. Snowfall totals ranged from 3 to 5 inches in these areas.
Out West, a strong low pressure system slid eastward and into British Columbia from the Gulf of Alaska. This system created a strong cold front that was pushed into Oregon and Washington, triggering rain and high elevation snow showers. Snowfall totals ranged fro 3 to 6 inches across the Cascades.
In the Southwest, a trough of low pressure moved over southern California and into Arizona on Thursday. This system brought rain and snow showers to parts of Arizona and New Mexico throughout the day. Temperatures remained cool across most of California after this system passed.
Temperatures in the Lower 48 states Thursday have ranged from a morning low of -29 degrees at International Falls, Minn. to a midday high of 89 degrees at Imperial, Calif.