Summary:
Power Pacific system will continue to bring significant impacts for Pacific Northwest into northern California the remainder of the week. Dangerous coastal affects, heavy rain, flooding, strong winds, and higher elevation mountain snow continues. Meanwhile, a storm across the east is set to bring the first accumulating snow to many higher elevations of the Catskills into the central Appalachians. Impacted Lanes: I-40, I-90, I-5, I-84, I-80, I-15, I-35, I-94, I-55, I-39, I-74, I-57, I-64, I-65, I-71, I-70, I-77, I-79, I-76, I-81, I-86, I-99, I-88, I-20, I-26, I-95
Pennsylvania
Winter Storm Warning remains in effect until 7 AM EST Saturday morning
- Heavy snow expected. Total snow accumulations between 6 and 12 inches. Locally higher amounts possible across the highest ridge tops. Winds gusting as high as 40 mph.
- Impacts: Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult. The hazardous conditions could impact the Thursday evening and Friday commutes.
Winter Weather Advisory remains in effect until 7 AM EST Saturday morning
- Snow expected. Total snow accumulations between 2 and 4 inches.
- Impacts: Plan on slippery road conditions. The hazardous conditions could impact the Friday morning commute.
Oregon
High Wind Warning remains in effect until 10 AM PST Friday morning
- South winds 25 to 40 mph with gusts up to 65 mph.
- Impacts: Damaging winds could blow down trees and power lines. Power outages are possible. Travel will be difficult, especially for high profile vehicles. Unsecured objects may be lost or damaged.
Wind Advisory remains in effect until 1 PM PST Friday afternoon
- Southeast winds 20 to 35 mph with gusts up to 45 mph.
- Impacts: Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Winds this strong can make driving difficult, especially for high profile vehicles.
Flood Warning remains in effect until 11:59 PM PST Friday evening
- Flooding caused by excessive rainfall and snow melt is expected.
- Impacts: Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is expected. Water over roadways.
Flood Watch remains in effect until further notice
- Flooding caused by excessive rainfall is expected
- Impacts: There will be an increased risk of rock and land slides along roadways. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded. Storm drains and ditches may become clogged with debris. Extensive street flooding and flooding of creeks and rivers are possible. Area creeks and streams are running high and could flood with more heavy rain.
Winter Weather Advisory remains in effect until 8 AM PST Thursday morning
- Wet snow above 4500 ft in western Lake County and eastern Klamath County. Additional snow accumulations of 2 to 7 inches.
- Impacts: Plan on slippery road conditions. The hazardous conditions could impact the Thursday morning commute. Gusty winds could bring down tree branches.
Oklahoma
Flood Advisory remains in effect until 6 AM CST Sunday morning
- Flooding caused by excessive rainfall continues.
- Impacts: Minor flooding in low-lying and poor drainage areas. Water over roadways.
New York
Winter Storm Warning remains in effect until 4 PM EST Friday afternoon
- Snow, heavy at times under localized bands. Totals will be highly elevation dependent as well. A few inches or less in valley locations with amounts of 5-12 inches above 1,500 feet. Totals of 12-18 inches possible in the highest elevations in western Wayne, eastern Lackawanna, Delaware and eastern Susquehanna counties.
- Impacts: Travel could be very difficult, especially with snowfall rates of 1-3 inches per hour in spots overnight. The hazardous conditions could impact the Friday morning commute. Heavy snowfall could bring down trees and wires due to the weight of the snow.
Winter Weather Advisory remains in effect until 1 AM EST Saturday morning
- Snow expected. Total snow accumulations up to 4 inches inches, with the greatest snowfall amounts for areas above 1000 ft. in elevation.
- Impacts: Roads, and especially bridges and overpasses, will likely become slick and hazardous.
Coastal Flood Advisory remains in effect until 5 PM EST this evening
- Up to one foot of inundation above ground level expected in vulnerable areas near the waterfront and shoreline.
- Impacts: Minor flooding in the more vulnerable locations near the waterfront and shoreline. Some roads and low lying properties near the waterfront will experience minor flooding.
Additional Winter Storm Warnings include but are not limited to: Washington, California, Idaho, West Virginia, and Maryland
Additional Winter Weather Advisories include but are not limited to: Washington, California, Idaho, Montana, Wisconsin, Illinois, Indiana, Ohio, Kentucky, Tennessee, North Carolina, Virginia, and West Virginia
Additional High Wind Warnings include but are not limited to: California
Additional Wind Advisories include but are not limited to: Washington, California, Nevada, Minnesota, Wisconsin, Iowa, Illinois, Indiana, Georgia, and South Carolina
Additional Flood Warnings include but are not limited to: Florida, Kansas, California, and Louisiana
Additional Flood Advisories include but are not limited to: California
Additional Coastal Flood Advisories include but are not limited to: Connecticut
Additional Flood Watches include but are not limited to: California, and Washington
