Weather across America

(NATIONAL) A storm system will produce locally heavy snow across the northern Cascades/Rockies before impacting the Northern Plains with gusty winds and potential blizzard conditions, heavy rain and scattered flash floods will be possible throughout southeast Texas, and a potent cold front traversing the Pacific Northwest and Northern Rockies will spread moderate snowfall across the higher terrain, with totals up to a foot in spots. 

By Monday morning, an area of low pressure is expected to strengthen and move eastward across far southern Canada. This will create a strong pressure gradient across the Northern Plains on Monday and thus the potential for high winds. Where there remains substantial fresh snow depth, blizzard conditions are possible by Monday evening. High Wind Warnings and Watches have been issued for parts of Montana, Wyoming, and North/South Dakota. 

Winter Storm Watches have been issued throughout eastern North Dakota and northwestern Minnesota to highlight the potential for light snow and simultaneous wind gusts as high as 60 mph. 

Farther south, an upper-level low ejecting out of the Southwest will spawn numerous showers and scattered thunderstorms across southeast Texas on Monday. The main hazard forecast throughout this region is expected to be associated with locally heavy rain. A few thunderstorms will have the potential to produce sufficient rainfall rates while remaining nearly stationary. This will create the possibility of scattered instances of flash flooding. 

A Slight Risk (level 2/4) of excessive rainfall has been issued for an area that roughly situates between Houston, Corpus Christi, and Austin, TX.  

Elsewhere, the combination of low relative humidity and gusty winds will potentially lead to critical fire weather throughout western and central Nebraska on Monday. 

Meanwhile, a warming trend is on the way for the eastern half of the U.S. ahead of an approaching cold front that should bisect the country from the Great Lakes to the Southern Plains by Tuesday night. Warm southerly winds will allow for well above normal temperatures to surge from the Gulf of Mexico to the Midwest to start the workweek. 

Showers are expected to develop across the Mid-Mississippi Valley on Tuesday as the aforementioned cold front clashes with the warm airmass. Finally, after a bitter cold last few days, the Florida Peninsula will endure one more cold morning on Monday, while the majority of the East Coast will enjoy temperatures only slightly below average by Tuesday.