The same storm system that packed quite a wet punch from Los Angeles to Phoenix and Las Vegas Thursday and Thursday night will head to the four corners on Friday.
A concentrated area of soaking, heavy showers and thunderstorms will hammer areas such as Grand Junction, Durango, Santa Fe and Albuquerque.
In some areas, rainfall will exceed one inch or more in only a couple of hours. Places that receive rainfall of this magnitude will have rapid flooding of small streams and normally dry washes.
Along steep canyons, ravines and mountainsides, dangerous mudflows and rockslides are possible.
In the highest elevations and ski resort areas, such as Telluride, Steamboat Springs, Vail and Aspen, the first winter storm of the season will dump 4-8 inches of thick, wet snow.
If you will be driving though mountain and back country roads, hiking wilderness trails, camping or sightseeing, be prepared for flooding or rapidly changing snow levels.
Heavy snow can bring down tree branches and snow packed roads over high mountain passes can make traveling impossible.
Be sure to have a plan of action if you get into trouble and to let someone know which trails or roads you will be taking.
Also, be aware that flood waters can travel a long distance from the origin of the rainfall through dry wash channels and stream/creek/river beds.
This storm will exit the Four Corners Saturday and move on the Nation's Heartland for Saturday.
Keep checking back at AccuWeather.com for the latest on this autumn storm, and for all your weather needs.
Severe thunderstorms with the risk of a few tornadoes will advance eastward across the northern Plains and Upper Midwest into Friday.
A dangerous outbreak of severe storms will strike the northern High Plains and Canadian Prairies on Wednesday.
Evacuations and closed roads as wildfires continue to burn across the United States.
Join us on Thursday for AccuWeather LIVE as we will discuss the debate of climate change and hurricane frequency and the top five things you need to know about summer weather.
A hot and humid weekend is shaping up for Chicagoland just in time for the official start of summer, while severe thunderstorms fire nearby to the north.
Tropical Storm Barry formed over the southwestern Gulf of Mexico and may hit the Mexico state of Veracruz Thursday.
Central Illinois (1964)
19th-20th) Hail as large as grapefruits battered more than 50 counties, causing crop and property damage totalling $9.2 million.
Philadelphia, PA (1994)
Strong thunderstorm winds blew off a large section of a hanger roof and also damaged two aircraft.
A violent tornado started west of the Hudson River, then travelled on to Poughkeepsie, Waterbury, North Haven, Milford, and Branford line into Long Island Sound. Extensive damage; funnel looked like an "aurora borealis." At New Milford, 28 buildings were destroyed or damaged. A barn door was carried 9 miles from its original site.