November to kick off with major cross-country storm bringing snow, flooding rain as it sweeps US

November is expected to statesman with a bang arsenic a almighty tempest that could present unsafe upwind to 35 states crossed the country. 

Starting Friday, a beardown upper-level debased situated adjacent the Pacific Northwest seashore volition pivot a well-defined, beardown Pacific pitchy toward the Southwest. This volition let a secondary debased to develop, drafting affluent Pacific moisture into the Southwest into Saturday. 

Election week tempest overview

Some rainfall volition autumn successful Arizona up of the main event, mounting the signifier for further rainfall coming aboriginal Saturday into Sunday.

Southern California volition spot moderate-to-heavy soaking rains by Saturday, apt disrupting Halloween plans, particularly for those successful larger cities similar Los Angeles and San Diego. 

WEST COAST FACES DAYS OF RECORD-BREAKING TIDAL FLOODING, SENDING STREETS AND BUSINESSES UNDERWATER

In San Diego, determination person lone been 9 Halloweens with measurable rainfall since 1850, with the astir caller being successful 1987.

Through Monday morning, the strategy volition propulsion inland crossed the Southwest, spreading rainfall eastward. This volition pb to wide 1 to 2 inches oregon much of rainfall crossed portions of Arizona done Monday, the FOX Forecast Center said. 

Up to 5 inches of rainfall could autumn from Phoenix to Flagstaff done Monday. 

KNOW YOUR FLOOD TERMINOLOGY: WHAT FLOOD WATCHES, WARNINGS AND EMERGENCIES REALLY MEAN

So acold successful October, Flagstaff has recorded 5.69 inches of rain. If an further 3 inches is recorded arsenic forecast, important flash flooding could occur. 

A level 2 retired of 4 flash flood menace is successful effect done the full weekend. 

Up successful the higher elevations, acold aerial volition go trapped, starring to snow from the Sierra to the Rockies. 

COULD SUPER EL NIÑO INFLUENCE THE POLAR VORTEX TO DO SOMETHING IT'S NEVER DONE BEFORE THIS WINTER?

NEDERLAND, COLORADO - MARCH 14: A lone idiosyncratic walks on Highway 119 arsenic dense amounts of snowfall falls  on March 14, 2021 successful Nederland, Colorado.  

(Getty Images)

The confederate Rockies volition spot the highest snowfall totals, betwixt 12 and 18 inches. 

Storms determination into the Plains and Midwest for Election Day

Later Monday, the tempest volition statesman to determination into the Plains and Midwest. 

Heavy rainfall could besides summation the hazard of flash flooding crossed the Plains. 

ANTIOCH, ILLINOIS - APRIL 21:  A location on the  Fox River watershed is surrounded by floodwater connected April 21, 2026 successful Antioch, Illinois. 

(Scott Olson / Getty Images)

Nearly 40 cardinal Americans are nether a ample level 1 retired of 4 flash flood menace from Texas to Wisconsin connected Monday. 

Ahead of the storm, a caller country of debased unit crossed the Plains volition apt form, allowing warm, moist aerial to watercourse in. 

HOW TO WATCH FOX WEATHER

Said lukewarm aerial volition interact with an approaching acold front, which whitethorn let severe storms to make on it from Tuesday into Wednesday, the FOX Forecast Center said. 

The forecast remains uncertain astir wherever terrible storms volition develop, arsenic forecast models disagree connected wherever precisely the country of debased unit volition signifier and however beardown it volition become.

Regardless, the FOX Forecast Center said the ambiance is becoming primed and energized for terrible storms from Texas into parts of the Southeast by aboriginal week done midweek.

Forecast uncertain for precocious week

From Wednesday onward, the storms volition proceed moving into the East, perchance bringing dense rainfall Thursday and Friday to large cities connected the I-95 corridor. 

Locations from Raleigh, North Carolina, to Washington, D.C., New York City and Boston could each spot rainfall for the archetypal clip successful astir 2 weeks.