Monday, November 19, 2007

Warm before the Storm

Strong southerly winds are pushing temperatures into the mid seventies across the Plains and Central Midwest today. When such unusually mild conditions develop during the colder months, one can generally assume that a Pacific or Arctic Front is approaching and, as suspected, that's the case this week.

A strong cold front is moving across the northern and central Rockies today, bringing heavy snow to the mountainous areas of Montana, Idaho and Wyoming. This frigid air mass will push on to the south and east over the next few days, igniting thunderstorms and heavy rain along its leading edge (and snow behind the front). Meanwhile, ahead of the storm, a southerly flow is producing high temperatures some 15-20 degrees above the mid November average.

Hopefully, the storm will retain its power and draw plenty of Gulf moisture into the drought-plagued Southeast. If so, Thursday will be a true day of Thanksgiving for those folks!