Powerful Storms Impacting both the West and East Coasts

A heavy precipitation event is expected in California over the next couple days. Several inches of rain may lead to flash flooding in southern/central California, including debris flows from burn scars. Up to 5 feet of snowfall is expected in the Sierra Nevada. Meanwhile, the 4th Nor'easter of March will bring heavy snow, wind, and coastal flooding to the Mid-Atlantic and New England.

Coastal Waters Forecast for Northerly Island to Calumet Harbor IL (LMZ742) (Text-Only)
NWS Forecast for: Northerly Island to Calumet Harbor IL (LMZ742)
Issued by: National Weather Service Chicago, IL
Last Update: 340 AM CDT Wed Mar 21 2018

Today: North winds 15 to 25 kt. Cloudy in the morning then becoming partly sunny. Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft.

Tonight: North winds 15 to 20 kt becoming northwest 10 to 15 kt after midnight. Mostly clear. Waves 3 to 5 ft subsiding to 2 to 4 ft after midnight.

Thursday: North winds 10 to 15 kt becoming northeast 5 to 10 kt in the afternoon. Sunny. Waves 2 to 4 ft subsiding to 1 to 3 ft in the afternoon.

Thursday Night: Northeast winds 10 to 15 kt. Mostly clear. Waves 1 ft or less.

Zone Forecast: Northerly Island to Calumet Harbor IL (LMZ742)

Visit your local NWS office at: http://www.crh.noaa.gov/lot