Cold Front Moving Through the Northeast U.S. Monday; Atmospheric River to Impact the Pacific Northwest Midweek

A cold front will cross the Great Lakes and Northeast U.S. through Monday with gusty winds and areas of rain showers. A strong atmospheric river is expected to move into the Pacific Northwest by midweek bringing a threat for moderate to heavy rainfall, gusty winds, and mountain snows for parts of Washington, Oregon, northern California, and the Sierra Nevada. Read More >

February 5-6, 2008 Tornado Outbreak Radar Imagery

Click on any still radar image below for a larger image.

East-Central Kentucky (Reflectivity and Velocity):

KLVX radar data showed an intense squall line, with numerous embedded bowing segments and line breaks, raced east across east-central Kentucky. Velocity data indicated a number of mesovortices (small cyclonic circulations) along the line's leading edge, which produced swaths of enhanced straight-line wind damage and several short-lived tornadoes.

Meade County (Reflectivity and Velocity):

KLVX reflectivity and storm-relative velocity loops of the EF1 tornado in Meade County. A bowing segment developed quickly in reflectivity, while velocity showed a mesovortex strengthen rapidly in Meade leading to the tornado, then weakened just as quickly in southern Harrison County. The reflectivity and velocity loops are not linked.

Hardin County (Reflectivity and Velocity):

Nelson County (Reflectivity and Velocity):

KLVX radar loops showed a high- precipitation (HP) supercell storm structure embedded within a squall line of storms over Nelson County in central Kentucky. Note the bowing part of the HP storm with hail to its north. Velocity data showed a long-lasting mesovortex/ mesocyclone, which produced a swath of enhanced wind damage and intermittent EF0-EF1 tornadoes over central Nelson. The system produced more damage across neighboring Washington County.

Washington County (Reflectivity and Velocity):

Mercer County (Reflectivity and Velocity):

Hart County (Reflectivity and Velocity):

KLVX radar data showed a bulging line of storms moved over northern Hart, Larue, and northern Green counties in central Kentucky. Velocity data showed a well-defined mesovortex over northern parts of Hart and Green, which produced an EF1 tornado over northern Hart County, with sporadic straight-line wind damage over other parts of these counties.

Shelby County (Reflectivity and Velocity):

Franklin County (Reflectivity and Velocity):

Harrison County (Reflectivity and Velocity):

Spencer County (Reflectivity and Velocity):

Monroe County (Reflectivity):

KLVX reflectivity and storm-relative velocity data showed an intense supercell thunderstorm moved notheast from Tennessee into south-central Kentucky. Large hail was within the storm (pink and blue colors in reflectivity data), while velocity showed a well-defined mesocyclone that produced an EF3 tornado that moved across Monro County.