Tracking Atmospheric River for the West Coast; Space Weather Storming Continues

An atmospheric river will bring threats of gusty to high winds and heavy rainfall to California mainly Thursday into Saturday which may bring areas of flooding and wind damage. Heavy snow will be possible over the Sierra Nevada mountains Thursday into Friday associated with the atmospheric river. Minor to severe geomagnetic storming (space weather) is expected to continue into early Thursday. Read More >

Summary
A series of supercell thunderstorms swept across the Tennessee Valley during the late afternoon and evening hours on Friday, April 7, 2006. The storms resulted in numerous tornado touchdowns, large hail up the size of softballs, and straight-line wind gusts in excess of 60 mph. Although additional storm surveys are still possible, it appears there were at least 21 brief tornado touchdowns across the Huntsville County Warning Area, occurring along 16 tornado tracks (many of the tornadoes touched down multiple times). The tornadoes were all in the F0 to F1 range on the Fujita Scale. Several days in advance of the storms, local National Weather Service offices and media partners began to mention the potential for significant weather across the region. In addition, early Thursday afternoon, the Storm Prediction Center began to forecast a high risk of severe weather across the Tennessee Valley Region for Friday afternoon and evening. Click here to see more details, inlcuding radar imagery and damage photographs of this event.

Weather Summary/Overview	Storm Photos


Tornado Tracks
Larger red triangles indicate the touchdown point, while the smaller purple triangles indicate where damage ended. Locations where the triangles overlap indicate a very brief, short-track tornado. Click the county for more information on tornadoes that hit that county (please bear with us as these pages are still being updated).


Severe Weather (Hail/Wind) Reports Blue squares indicate wind damage or a severe wind gust. Green circles indicate large hail (3/4" or penny-size or larger). Click the image for a complete list (updated 4/12/06).


Additional Coverage from Other NWS Offices
Nashville, TN (middle Tennessee) • Storm Survey Map & Pictures (warning: many large images) • Damage Summary Birmingham, AL (central Alabama) • Storm Surveys Pictures & Information

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Tracking Atmospheric River for the West Coast; Space Weather Storming Continues

April 7, 2006 Severe Event Summary