Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
238 PM EST Sun Jan 19 2014
Valid 00Z Mon Jan 20 2014 - 00Z Wed Jan 22 2014
***Arctic air to surge southeast across the Northern and Eastern U.S.***
***Warm and dry weather to persist across the Western U.S.***
The weather pattern across the continental U.S. through the middle of the week will again feature a strong ridge along the West Coast and into portions of the Great Basin and a large scale trough over the eastern half of the country.
There will be a few areas of mainly light snow over the northern tier of the country, especially around the Great Lakes region, as couple of weak wave of low pressure and an arctic cold front crosses the region.
Most of the nation is very dry right now, and with a lack of moisture transport, there is not expected to be widespread areas of
The aforementioned ridge impacting the West continues to favor a
continuation of warm and very dry conditions across this region.
The driest conditions will again tend to be over California and the adjacent areas of the Southwest, where very little or no precipitation has been noted this winter season.
There is some potential for the ridge to break down a bit by Wednesday, but mainly for the Pacific Northwest, where some
cooler temperatures and scattered showers will become likely.
This activity appears unfortunately that it will bypass California, and as a result the extreme drought and enhanced threat for wildfires continues here.
Meanwhile, with the reinforcement of an upper trough over the eastern half of nation, there will be the arrival and passage of another arctic cold front. Initially focusing down across the Northern Plains and Midwest, the arctic air will filter east across the Great Lakes region and into areas of the Ohio Valley, Mid-Atlantic and Northeast by the middle of the week.
Consequently, after a brief warm-up to start the week, there will be a
trend back toward below to much below normal temperatures.