Wet weather will continue over portions of the Northwest as a cold front treks eastward through the region. The front will produce rain over portions of the Northern Intermountain West through the Northern Rockies during the next couple of days.
Rainfall totals of a half-inch to an inch will be possible over the Northern Rockies, while lighter amounts may spread into the Central Great Basin. Cooler air will accompany the front and will lead to lower snow levels across the higher elevations of these regions.
As this system moves eastward, high pressure will build over the West Coast with plenty of sunshine. Gusty offshore flow will dry out skies and warm temperatures through the day. Fire conditions may be possible across inland areas of central California.
Meanwhile, in the central U.S., low pressure over Nebraska will continue dropping southward toward eastern Oklahoma. The low will kick up scattered showers, locally heavy rainfall and thunderstorms from southeastern Nebraska through northeastern Texas and in the western portions of Missouri and Arkansas. Storms in eastern Texas may turn severe with hail and gusty winds.
Elsewhere in the Midwest, a weak frontal boundary will become stalled over the Ohio Valley and the northern Mid-Atlantic on Monday. Waves of low pressure will develop along the front and will trigger showers and chances of scattered thunderstorms in the Upper Great Lakes.
Quieter weather is expected in the eastern third of the nation. A few showers are possible in the Northeast due to the weak frontal boundary.
Temperatures in the Lower 48 states Sunday ranged from a low of 22 degrees at Alamosa, Colo. to a high of 102 degrees at Death Valley, Calif.