Summary:
A storm system over the West Coast will bring heavy rainfall and a flooding threat from the southern Coast of Oregon to central California, heavy mountain snow over the Sierra, and gusty winds to the region. Warmer temperatures ranging between 20-40 degrees above average will expand across the Great Plains and Mississippi Valley. Impacted Lanes: I-90, I-5, I-84, I-82, I-80, I-680, I-280, I-10, I-15, I-70, I-86, I-35, I-29, I-71, I-75
California
Winter Storm Warning remains in effect until 12:15 PM PST Thursday afternoon
- Heavy snow expected above 4000 feet. Total snow accumulations of 12 to 24 inches. Winds gusting as high as 50 mph.
- Impacts: Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. Strong winds could cause tree damage.
Flood Watch remains in effect until 10 AM PST Friday morning
- Flooding caused by excessive rainfall continues to be possible. A strong Pacific storm will bring widespread moderate to locally heavy rainfall.
- Impacts: Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas.
High Wind Warning remains in effect until 1 PM PST this afternoon
- Southeast winds 35 to 45 mph. Gusts up to 75 mph on exposed ridges.
- Impacts: Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.
Wind Advisory remains in effect until 1 PM PST this afternoon
- Southeast winds 25 to 35 mph. Gusts up to 60 mph on exposed ridges.
- Impacts: Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Travel could be difficult, especially for high profile vehicles.
Winter Weather Advisory remains in effect until 10 AM PST Friday morning
- Snow expected. Snow accumulations of 3 to 8 inches above 5000 feet west of US-395, with 8 to 18 inches for higher passes such as Fredonyer Summit and Yuba Pass. Below 5000 feet, less than 3 inches of snow are expected. Winds gusting as high as 50 mph, with a few gusts up to 65 mph for wind prone portions of US-395 Wednesday afternoon and evening.
- Impacts: Travel could be very difficult especially near and above 5000 feet, with snowfall rates up to 2 inches per hour at times. Hazardous conditions will impact the commutes from Wednesday evening through Friday morning. Strong winds may blow down some tree limbs and a few power outages may result.
Maryland
Coastal Flood Warning remains in effect until 10 PM EST this evening
- Up to one foot of inundation above ground level in low lying areas due to tidal flooding.
- Impacts: At 3.5 feet, water covers roads, is in yards, and is approaching structures.
New Jersey
Coastal Flood Advisory remains in effect until 6 PM EST this evening
- Up to one half foot of inundation above ground level in low-lying areas near shorelines and tidal waterways.
- Impacts: Flooding of lots, parks, and roads with only isolated road closures expected.
Iowa
Dense Fog Advisory remains in effect until 10 AM CST this morning
- Visibility one quarter mile or less in dense fog.
- Impacts: Low visibility could make driving conditions hazardous. Slick spots may develop on roads where the fog freezes.
Montana
Dense Fog Advisory remains in effect until 11 AM MST this morning
- Visibility less than one half mile in dense fog.
- Impacts: Low visibility could make driving conditions hazardous.
Freezing Fog Advisory remains in effect until 11 AM MST this morning
- Visibility less than one half mile in freezing fog causing icy conditions.
- Impacts: Low visibility and icy roadways could make driving conditions hazardous.
Additional Winter Storm Warnings include but are not limited to: Nevada, and Utah
Additional High Wind Warnings include but are not limited to: Oregon
Additional Wind Advisories include but are not limited to: Oregon, and Nevada
Additional Winter Weather Advisories include but are not limited to: Nevada, and Utah
Additional Dense Fog Advisories include but are not limited to: Ohio, Minnesota, Washington, Oregon and Idaho
