Summary:
A significant winter storm from the Mid-South today will transition to a strong Nor'easter for the Mid-Atlantic and New England by Tuesday. Severe thunderstorms, heavy rainfall, and flash flooding will be possible across portions of the Southeast today. A new storm system arrives across the Pacific Northwest by the middle of the week with areas of locally heavy rain and mountain snowfall. Impacted Lanes: I-5, I-80, I-90, I-94, I-25, I-44, I-49, I-40, I-30, I-530, I-20, I-10, I-55, I-59, I-65, I-85, I-75, I-16, I-95, I-26, I-77
Georgia
Flash Flood Warning remains in effect until 12:30 PM EST this afternoon
- Flash flooding caused by thunderstorms.
- Impacts: Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas.
Wind Advisory remains in effect until 3 PM EST Tuesday afternoon
- Northwest winds 20 to 30 mph with gusts up to 50 mph expected.
- Impacts: Gusty winds will 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.
Flood Watch remains in effect until 11 PM EST this evening
- Flooding caused by excessive rainfall continues to be possible.
- Impacts: Excessive runoff may result in flooding of rivers, creeks, streams, roadways, 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.
Pennsylvania
Winter Storm Warning remains in effect until 3 PM EST Tuesday afternoon
- Heavy snow expected. Total snow accumulations of 9 to 12 inches.
- Impacts: Travel could be very difficult to impossible. The hazardous conditions will impact the Tuesday morning commute.
Winter Weather Advisory remains in effect until 3 PM EST Tuesday afternoon
- Rain will change over to snow. Total snow accumulations of 2 to 4 inches. Winds gusting as high as 35 mph.
- Impacts: Plan on slippery road conditions. The hazardous conditions could impact the Tuesday morning commute.
Coastal Flood Advisory remains in effect until 10 AM EST Wednesday morning
- Up to one foot of inundation above ground level expected in low-lying areas near shorelines and tidal waterways.
- Impacts: Flooding begins on the most vulnerable roads along tidal waterways. Some partial or full road closures are possible.
Wyoming
High Wind Warning remains in effect until 5 AM MST Tuesday morning
- West winds 30 to 40 mph with gusts up to 60 mph expected.
- Impacts: Mainly to transportation. Strong cross winds will be hazardous to light weight or high profile vehicles, including campers and tractor trailers.
Delaware
Coastal Flood Warning remains in effect until 3 AM EST Wednesday morning
- One to two feet of inundation above ground level expected in low-lying areas near shorelines and tidal waterways.
- Impacts: Widespread roadway flooding occurs in coastal and bayside communities and along inland tidal waterways. Many roads become impassable.
Coastal Flood Advisory remains in effect until 4 PM EST Tuesday afternoon
- Up to one half foot of inundation above ground level expected in low-lying areas near shorelines and tidal waterways.
- Impacts: Flooding begins on the most vulnerable roads along tidal waterways. Some partial or full road closures are possible.
Florida
Flood Advisory remains in effect until 10 AM CST this morning
- Flooding caused by excessive rainfall is expected.
- Impacts: Minor flooding in low-lying and poor drainage areas. Water over roadways.
California
Dense Fog Advisory remains in effect until 10 AM PST this morning
- Visibility to one-quarter mile or less in dense fog.
- Impacts: Hazardous driving conditions due to low visibility.
Additional Flash Flood Warnings include but are not limited to: Alabama
Additional Flood Watches include but are not limited to: Mississippi, Tennessee, Alabama, South Carolina, and North Carolina
Additional Coastal Flood Advisories include but are not limited to: New Jersey, New York and Maryland
Additional Coastal Flood Warnings include but are not limited to: New Jersey
Additional Flood Advisories include but are not limited to: Alabama
Additional Wind Advisories include but are not limited to: West Virginia, Maryland, Virginia, North Carolina, Tennessee, South Carolina, Louisiana, and Texas
Additional High Wind Warnings include but are not limited to: Massachusetts, Virginia, North Carolina, and South Carolina
Additional Winter Storm Warnings include but are not limited to: Oklahoma, Missouri, Arkansas, Maryland, West Virginia, New Jersey, New York, Massachusetts, Rhode Island, and Connecticut
Additional Winter Weather Advisories include but are not limited to: Washington, Idaho, Montana, Oklahoma, Kansas, Missouri, Arkansas, Illinois, Kentucky, Ohio, Maryland, Virginia, and New York
Additional Dense Fog Advisories include but are not limited to: Louisiana, and Maryland
