Stay up to date with all weather conditions affecting transportation in the United States

Summary: Severe thunderstorms and heavy rains are expected to continue in the Southeast into the Ohio Valley. Widespread potential record high temperatures will continue throughout parts of the Mid-Atlantic and Southeast today.

• Snow expected. Total snow accumulations of 5 to 11.
• The hazardous conditions could impact the morning or evening travel.

• Sub-freezing temperatures as low as 27
• Northeast winds 20 to 35 mph with gusts up to 50 mph expected
• Gusty winds will make driving difficult, especially for high profile vehicles

• Snow expected. Total snow accumulations of 5 to 8 inches likely.
• Plan on slippery road conditions. The hazardous conditions could impact the morning and evening commutes.

• Snow, heavy at times, expected. Total snow accumulations between 5 and 9 inches.
• Winds gusting as high as 35 mph
• Rapid accumulations and a flash freeze will likely accompany this heavy snow
• Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult. The hazardous conditions could impact the Tuesday morning and evening commutes.

• Snow expected. Total snow accumulations of 4 to 10 inches
  • Higher elevation expected to receive 12- 18 inches of snow
• Ice accumulations of a light glaze
• Winds gusting as high as 40 mph
• Mountain travel will be very difficult or impossible due to icy, snow packed roads and low visibilities in falling and blowing snow

• Additional snow accumulations of 2 to 4 inches with locally higher amounts
• Plan on slippery road conditions

Additional Flood Advisories continue to scatter across the following: Arkansas, Indiana, Tennessee, Kentucky, Mississippi, Missouri, and Ohio

Summary: Two storms will produce heavy mountain snow and gusty winds with some lower elevation rain in California. This system ejects into the Central U.S. with widespread heavy snow and gusty winds extending from the California mountains to the North and Central Plains.

• For the Winter Weather Advisory, snow expected. Total snow accumulations
  of 3 to 6 inches
• Expect slippery and snow covered roads

• High Wind Warning - West winds 35 to 45 mph with gusts up to 70 mph expected
• Winter Storm Warning - Heavy snow expected. Total snow accumulations of 6 to 8 inches above 5500 feet
• Travel will be difficult, especially for high profile vehicles. Expect difficult driving conditions.

• Snow expected. Total snow accumulations of 2 to 5 inches
  • 5 to 10 inches above 7000 feet west of Highway 89
• Sustained winds of 10 to 20 mph with gusts to 35 mph
• Gusts of 50 to 90 mph for exposed areas along the Sierra crest
• Hazardous driving conditions for high profile vehicles
• Plan on slippery road conditions

• Rain and melting snow will contribute to rises on creeks and streams in north Idaho
• Rock slides, minor field flooding, and mudslides in steep terrain may also be possible

• Southwest winds 20 to 30 mph with gusts up to 50 mph expected
  • Strongest values in the mountains and wind prone locations
• Winds this strong can reduce visibilities and make driving difficult for high profile vehicles
• Snow expected. Total snow accumulations of 1 to 5 inches

• Winter Weather Advisory - Wet snow and freezing drizzle. Additional snow accumulations up to one inch at lower elevations, and up to 3 inches in the mountains. Ice accumulations around a light glaze. Plan on slick roads.
• Winter Storm Warning - Heavy snow expected. Total snow accumulations between 5 and
  8 inches. Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult. Where: Beartooth Foothills and Red Lodge Foothills

• Snow expected. Total snow accumulations of 4 to 10 inches
  • Higher elevation expected to receive 12- 18 inches of snow
• Ice accumulations of a light glaze
• Winds gusting as high as 40 mph
• Mountain travel will be very difficult or impossible due to icy, snow packed roads and low visibilities in falling and blowing snow

• Heavy snow expected. Total snow accumulations of 10 to 20 inches with locally higher amounts
• Winds gusting as high as 50 mph
• Travel could be very difficult. Patchy blowing snow could significantly reduce visibility

• Southwest winds 20 to 35 mph with gusts up to 50 mph

Additional Flood Advisories continue to scatter across the following: Missouri, Arkansas, Illinois, Indiana, Tennessee, Kentucky, Mississippi, and New York. 

Summary: Two storms will bring heavy mountain snow, lower elevation rain, and gusty winds to California later this week and into this weekend. An Arctic front interacting with these systems will produce widespread, heavy snow from the Southwest Mountains to the Plains and severe weather potential.

• Minor flooding is occurring and minor flooding is forecast
• Expect rivers to flood low pasture lands and some roads

• A wintry mix of freezing rain and snow accumulations of up to two inches
• Dense fog can be expected
• Expect ice accumulations of a light glaze, and snow accumulations less than an inch
• Roads are likely slick and hazardous in spots, including I-94

• Visibility less than one-quarter mile in dense fog
• Hazardous driving conditions due to low visibility
• ADDITIONAL DETAILS...Icy spots have developed on roadways

• Visibility as low as one-quarter mile in dense fog
• Hazardous driving conditions due to low visibility
• Be prepared for rapid changes in visibility over short distances. Elevated surfaces may also become slick as temperatures are below freezing.

• Very cold wind chills as low as 35 below zero

• Southwest winds 20 to 30 mph with gusts up to 45 mph

Additional Flood Advisories continue to scatter across the following: Washington, Idaho, Oregon, Montana, Arkansas, Missouri, Illinois, Indiana, Tennessee, Alabama, Mississippi, and New York. 

Summary: Overall a quiet few days are expected with the weather. A clipper system will track through the Great Lakes and Northeast with lake effect snow, rain and snow showers and gusty winds through Thursday. The constant moisture into the Northwest will gradually calm with just some rain showers lingering.

• Minor flooding is occurring and is forecast
• Rising rivers will cause minor flooding of lowlands not protected by levees

• Rain and melting snow will produce increased runoff
• Minor flooding is forecast
• Portions of roads may be underwater and impassable

Additional Flood Warnings in effect including but not limited to: Mississippi, Alabama, Arkansas, Illouinois, Indiana, Tennessee, Kentucky, Missouri, and Washington.

Summary: A series of storms are bringing avalanche and flooding concerns to the Pacific Northwest and northern Rockies as precipitation and heavy winds continue to impact the area.

Washington

• Freezing rain. Additional ice accumulations of a light glaze. Black ice is expected.
• Wet snow. Additional snow accumulations up to 3 inches.
• Southwest winds mostly 35 to 45 mph with gusts high as 75 mph
• Travel could be difficult for high profile vehicles. Blowing snow will also reduce visibility at times.

• Visibility less than one quarter mile in dense fog making driving conditions hazardous
• The fog may deposit a thin layer of ice on untreated surfaces
  
  

Additional Flood Advisories scatter central and eastern US, including but not limited to: Mississippi, Alabama, Arkansas, Illouinois, Indiana, Tennessee, Kentucky, Ohio, and Missouri.

Summary: A series of storms will impact the Pacific Northwest through midweek with heavy low elevation rain that could cause flooding, heavy mountain snow, and high winds along the Rocky Mountain Front.

Oregon

High Wind Warning / Wind Advisory

• High Wind Warning: South winds 25 to 35 mph with gusts up to 60 mph.Strongest wind on exposed beaches and headlands. Impacts: Travel will be challenging, especially for high profile vehicles late tonight through Monday afternoon.
• Wind Advisory:South winds 25 to 35 mph with gusts up to 50 mph expected.

• Snow expected. From 4 AM to noon, up to an additional 2 inches of snow below 3000 feet.
• Additional mountain snow accumulations between 5 to 10 inches today.

• Winds 35 to 40 mph with gusts up to 70 mph. Strong crosswinds will make travel difficult along interstate 90.
• Mixed precipitation. Snow accumulations of 1 to 3 inches and ice accumulations of a light glaze.

• Very cold wind chills. Wind chills as low as 15 below zero.

Additional Flood Advisories scatter central and eastern US, including but not limited to: Mississippi, Alabama, Arkansas, Illouinois, Indiana, Tennessee, Kentucky, Ohio, and Missouri.

Summary: Winter Storm to Impact the Mid-Atlantic and Northeast Friday. A winter storm will produce a swath of freezing rain into Friday over the northern Mid-Atlantic and a swath of heavy snow over upstate New York State and much of New England. Ice accumulations over 0.25” are most likely over west-central Pennsylvania where particularly hazardous travel and localized power outages are likely. Snowfall rates of 1-2" per hour will be possible in the Northeast. 

Major Lanes of Concern

• Interstate 35 from Dallas to Oklahoma City.
• Interstate 40 from Oklahoma City to Little Rock.
• Interstate 44 from Wichita Falls, Texas, to St. Louis.
• Interstate 64 from St. Louis to Louisville, Kentucky.
• Interstate 65 from Indianapolis to Nashville, Tennessee.
• Interstate 70 from St. Louis to Frederick, Maryland.
• Interstate 80 from Toledo, Ohio, to Teaneck, New Jersey.
• Interstate 95 from Philadelphia to the Maine-Canada border.

• Sub-freezing temperatures as low as 30 degrees expected
• Northeast winds 15 to 25 mph with gusts up to 35 mph expected

• Wind chills as low as 40 below zero

• Wind chills as low as 30 below zero

• Light ice accumulations possible with visibility one mile or less in freezing fog
• Visibility may drop as low as 1/4 mile
• Hazardous driving conditions due to low visibility and potential frost on bridges

• Visibility one-quarter mile or less in dense fog
• Hazardous driving conditions due to low visibility

• Winter Weather Advisory: Pockets of light snow or freezing drizzle will remain possible this morning. Falling temperatures behind a cold front may allow ice to linger on roads. Roads, and especially bridges and overpasses, will remain slick and hazardous.
• Flood Warning: Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. Streams continue to rise due to excess runoff from earlier rainfall.

• Winter Weather Advisory: Mixed precipitation. Additional sleet accumulations of up to one inch and ice accumulations of up to one tenth of an inch. Plan on slippery road conditions
• Ice Storm Warning: Significant icing. Around a third of an inch of ice accumulation. Downed tree limbs and isolated power outages are likely due to the ice. Hazardous travel conditions could impact the morning.

• Winter Weather Advisory: Mixed precipitation. Total combined snow and sleet accumulations of 1 to 3 inches, and ice accumulations up to around a tenth of an inch. Hazardous conditions could impact travel.
• Winter Storm Warning: Ice accumulations of a light glaze to a tenth of an inch. Total snow and sleet accumulations 4 - 7 inches. Some areas may see up to 12 - 15 inches. Maximum snowfall rates of 1 to 2 inches per hour are expected into this morning. Snow will continue to mix with then change to sleet by mid morning, with a brief period of freezing rain possible late this morning. Travel will be very difficult to impossible

• West northwest winds 20 to 35 mph with gusts to 55 mph
• Difficult travel for high profile vehicles

• Mixed precipitation. Total combined snow and sleet accumulations of 1 to 3 inches
• Ice accumulations of up to two tenths of an inch
• Plan on slippery road conditions

• Heavy snow. Total snow accumulations of 8 to 12 inches with 12 to 15 inches
• Maximum snowfall rates of 1 to 2 inches per hour are expected this morning into the early afternoon
• Travel will be very difficult to impossible. The hazardous conditions will impact morning and evening travel.

New Hampshire

• Heavy snow. Snow accumulations between 6 and 9 inches, with locally higher amounts of up to a foot
• The potential exists for snowbands that will bring periods of locally heavy snowfall, which will lead to rapid snow accumulations and extremely dangerous travel conditions
• Travel could be very difficult due to low visibility and snow covered roads

Massachusetts

• Heavy snow. Total snow accumulations of 8 to 12 inches. Some sleet could mix in this morning.
• 1 to 2 inch per hour snowfall rates will develop early this morning
• Snow will change to sleet later this morning near and south of the Massachusetts Turnpike
• Travel will be very difficult and treacherous
• A flash freeze is also expected late this afternoon and early this evening along the coast as
  above freezing temperatures fall back into the 20s

Connecticut & Rhode Island

• Heavy mixed precipitation. Total snow and sleet accumulations up to 7 inches
• Heavy snow changing to sleet with a bit of light freezing drizzle possible
• Ice accumulations of a light glaze to a tenth of an inch
• Maximum snowfall rates of 1 to 2 inches per hour are expected into this morning

Maine

• Heavy snow. Total snow accumulations of 5 to 9 inches expected
• Higher snow accumulation amounts of up to a foot in localized areas expected
• The potential exists for snowbands that will bring periods of locally heavy snowfall, which will lead to rapid snow accumulations and extremely dangerous travel conditions.
• Travel could be very difficult due to low visibility and snow covered roads.

Additional Flood Advisories scatter central and eastern US, including but not limited to: Missouri, Arkansas, Indiana, Illinois, Kentucky, Tennessee, Alabama, Mississippi, and Michigan

Summary: Winter Storm Bringing Ice to the Central U.S. Shifting to the Mid-Atlantic; Heavy Snow Expected for the Northeast. A significant winter storm will bring snow and ice from the southern Plains to the Ohio Valley through Thursday night, with heavy snow for the Northeast U.S. Thursday night through Friday. Freezing rain and sleet ongoing from north Texas through the Mid-Mississippi Valley will shift to the eastern Ohio Valley through the central Appalachians. 

Major interstates in the potential impact zone include but are not limited to I-35, I-40, I-44, I-55, I-57, I-70, I-75, I-76, I-80, I-81, I-90 and I-95. Impacts will include a variety of issues ranging from reduced speeds to major slowdowns and long-term road closures.

• Very cold wind chills occurring. Wind chills as low as 50 below zero
• In effect until noon today

Dense Fog Advisories for the following: Louisiana, Mississippi, Alabama, Georgia, Florida - Panhandle, Georgia, North Carolina, and South Carolina

Summary:  A significant winter storm will bring snow and ice from the southern Plains to the Ohio Valley Wednesday through Thursday night, and the Northeast U.S. Thursday night through Friday. Freezing rain and sleet is expected from north Texas through the Mid-Mississippi Valley and eastern Ohio Valley through the central Appalachians which could bring dangerous travel and power outages.

 Major interstates will be impacted as this storm moves.  Interstates include but are not limited to:     I -35, I-40, I-44, I-55, I-57, I-70, I-75, I-76, I-80, I-81, I-90 and I-95. Impacts will include a variety of issues ranging from reduced speeds to major slowdowns and long-term road closures.

Summary:   A winter storm will continue with heavy snow, localized blizzard conditions, and ice from the upper Midwest into New England on Tuesday. Further south severe thunderstorms may bring large hail, damaging winds, and heavy rain with flooding over portions of the mid Mississippi Valley and Deep South. Another winter storm will develop over the Southwest midweek tracking across the U.S. into late week.