Weather across America

(NATIONAL) Severe weather possible over Northeast Texas, ArkLaTex, and Florida, critical fire weather conditions across portions of the Southern High Plains on Monday and additional heavy precipitation possible across the Northwest. 

A system that moved inland early Sunday and brought widespread precipitation to the Northwest and northern Rockies, including areas of locally heavy mountain snow, is forecast to move steadily southeast. Generally light precipitation is expected across the central Rockies as this system moves across that area this evening and overnight.  

By Monday morning, the system is expected to move east of the Rockies, sending a cold front south through the southern High Plains. Low humidity and gusty winds are expected to generate elevated to critical fire weather concerns across portions of the region, especially for the Trans-Pecos and Big Bend regions of Texas.

As the system continues farther east, it will begin to interact with moist and unstable air streaming north from the Gulf of Mexico. Showers and thunderstorms are likely to develop during the afternoon and evening hours across eastern Texas and Oklahoma into Arkansas and Louisiana. Some of these storms may become strong to severe. The Storm Prediction Center continues to highlight much of Northeast Texas into the ArkLaTex and far southeastern Oklahoma with a Slight Risk (level 2/5). 

Storms that develop across this area may produce large hail, isolated wind damage or a tornado two during the afternoon and evening hours.

On Tuesday, as the system tracks east along the Gulf Coast, showers and storms will spread from the lower Mississippi Valley across the Southeast, with locally heavy rain possible. Strong to severe storms will once again be possible. The Storm Prediction Center has highlighted portions of the northern Florida Peninsula with Slight Risk, noting that damaging winds will be possible during the afternoon and evening hours.

Freeze Warnings and Frost Advisories currently cover much of central Alabama, Georgia, and South Carolina. One more night of well-below normal temperatures is expected before cold high pressure moves offshore and temperatures begin to moderate on Monday.

Farther to the north, a weak upper disturbance is expected to produce of narrow strip of light to moderate snow, producing accumulations of a few inches from North Dakota to northern Michigan tonight into Monday.

Meanwhile, another system is forecast to move into the Pacific Northwest and northern Rockies, producing another round of widespread precipitation, including potentially locally heavy amounts across portions of the western Washington and Oregon as it moves across the region on Tuesday.