National Weather Service United States Department of Commerce

Severe Storms For The Northeast U.S..; Heat And Fire Out West

A strong cold front will likely trigger severe thunderstorms and locally heavy rain on Friday from the Interior Northeast into the eastern Ohio Valley and northern Mid-Atlantic region, especially in New York state and Pennsylvania. Meanwhile, in addition to the ongoing heat wave in the West, fire weather concerns are increasing across the Great Basin into the Four Corners region. Read More >

April 3, 1974 meteorology


Map of the entire outbreak

Satellite pictures at 11:11am EDT, 1:54pm EDT, and 5pm EDT.

Surface weather map at 8am EDT, 2pm EDT, and 8pm EDT

Jet streams

Weather maps:  250mb winds, 500mb winds, 500mb heights, 700mb relative humidity, 850mb winds, surface temperatures, surface relative humidity, sea level pressure.

General Outbreak Information


See an 11"x17" version of our commemorative poster (3.7Mb):
Super Outbreak Poster

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