Southwest & Southern California
A system moving from southeastern California toward the Southern Rockies will bring heavy rain and thunderstorms Tuesday into Wednesday. A Slight Risk (Level 2/4) of excessive rainfall is in place, with the highest concern for flash flooding in urban areas, on roads, near small streams, and around burn scars.
Moderate to heavy mountain snow is expected in the Sierra Nevada and southern Utah mountains Tuesday and Wednesday.
Pacific Northwest & Northern Rockies
A weak front will bring light rain and high-elevation snow to the Pacific Northwest and Northern Intermountain Region Tuesday into early Wednesday.
Upper Midwest & Great Lakes
A low-pressure system will bring light snow to the Upper Mississippi Valley and Great Lakes on Tuesday, extending into parts of the Ohio Valley. Rain and a few storms in the Ohio Valley will taper off by Wednesday. Rain will also spread into the Central Appalachians and Mid-Atlantic Tuesday into early Wednesday.
Southern Plains to Mississippi Valley
Another low will form over the Southern Plains on Wednesday and track northeast. This will bring showers and thunderstorms to the Southern Plains on Wednesday, spreading into the Middle and Lower Mississippi Valley by Thursday.
Upper Mississippi Valley (Midweek)
A separate front from south-central Canada will bring light rain to the Upper Mississippi Valley and Upper Great Lakes late Wednesday into Thursday.
West Coast (Late Wednesday–Thursday)
Another front approaching the coast will bring light rain to the Pacific Northwest and Northern California by Wednesday afternoon, moving into Southern California by early Thursday.
WYOMING
Lingering showers this morning with cloudy skies through the afternoon hours. A bit warmer but with a cooler night ahead along with improving skies overnight into Wednesday.
Have a fantastic day.