Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

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Winter Storm Warning	Winter Weather Advisory	Ice Storm Warning
Wind Chill Warning	Winter Storm Watch	Wind Chill Watch
Blizzard Warning	High Wind Watch	High Wind Warning

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NDDOT Travel Map

Beach - West	Beach	Bowman	Daglum

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Medora (I-94)	Dickinson Bypass West	Lehigh Separation	Green River

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Four Bears Bridge	Killdeer4NW ND22	Killdeer Roundabout	Mott 10N

Watford City	Panger	Grassy Butte	Manning

Belfield 6N US85	Newtown	New England 9NNE	New Leipzig

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Columbus	Westhope	Minot	Minot AFB

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Sterling	Gackle	Medina	Jamestown

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Rugby	Dunseith

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Fargo	Fargo	Buxton	Crary

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Bowesmont	Pembina	Cavalier

Snow and Ice Accumulation Forecasts

Experimental Snowfall Forecasts

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Made Routinely Twice Daily Around 345 AM CST and 345 PM CST. ******See Valid Time Near The Top Of The Image Image*****

Low End Amount 9 in 10 Chance (90%) of Higher Snowfall	Expected Snowfall Official NWS Forecast	High End Amount 1 in 10 Chance (10%) of Higher Snowfall

% Chance Of 2" or More	% Chance Of 4" or More	% Chance Of 6" or More	% Chance Of 12" or More

Experimental Ice Accumulation Forecast Made Routinely Twice Daily Around 345 AM CST and 345 PM CST. See Valid Time On Image

Cold Advisory For Newborn Livestock (CANL)

Cold Advisory For Newborn Livestock (CANL)

The CANL graphics below show the risk of cold exposure to newborn livestock. The risk is related to wind chill temperature, precipitation, and humidity, and ranges from "NONE" for no risk, to "EXTREME" for rare and particularly dangerous situations. For more information click here for the product fact sheet. The images below are each valid for a 6 hour time period out to 66 hours. Click on the images to expand and see the forecast valid time. The CANL images are updated at least twice daily at 5 am and 5 pm.

0 Hour	6 Hour	12 Hour

18 Hour	24 Hour	30 Hour

36 Hour	42 Hour	48 Hour

54 Hour	60 Hour	66 Hour

NONE: Wind Chill above 41 degrees
SLIGHT: Wind Chill less than 41 degrees for two or more hours
MILD: Wind Chill less than 32 degrees for two or more hours
MODERATE: Wind Chill less than 0 degrees for two or more hours or Wind Chill less than 36 degrees for two or more hours and .02" precipitation
SEVERE: Wind Chill of -9 degrees or colder for two or more hours, or wind chill of less than 34 degrees for two or more hours and .05" of precipitation
EXTREME: Wind Chill of -18 or colder for two or more hours, or wind chill less than 32 degrees for two or more hours and .1" of precipitation

For sunny conditions (Cloud cover less than 40%), reduce wind chill thresholds by 10 degrees
For humid conditions (Minimum relative humidity remaining above 95%), increase wind chill thresholds by 10 degrees
For dry snow conditions (Maximum temperature remains less than 26F), double the precipitation thresholds for MOD-EXTREME

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Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

North Dakota Winter Weather Briefing Page

NDDOT Travel Map

**Use these maps with caution as they may not cover the entire event**

Use these maps with caution as they may not cover the entire event