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 >

2018 Winter Weather Preparedness Week in Colorado

Sunday, October 14th through Saturday, October 20th

View the slides below for a graphical depiction of the daily topics.

For more detailed information on the topics each day in Colorado, visit: www.weather.gov/gjt/wwpw_co

For more information on various weather safety tips and resources for the winter season:

For Winter Safety, visit: www.weather.gov/safety/winter
For Cold Safety, visit: www.weather.gov/safety/cold
For Avalanche Safety, visit: www.weather.gov/safety/winter-avalanche

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