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Fall Weather Pattern Arrives

Rain and much cooler temperatures behind a cold front will bring a feeling of fall to the east coast today. In addition, an active fall storm pattern developing in the Pacific Northwest this week will bring areas of heavy rains, and very high elevations could receive heavy snow. Wetting rains to the valley floors will spread south Thu and Fri into northern California,where active fires continue. Read More >

Fast
Facts
 

Fast Facts

  • The parent supercell thunderstorm produced 10 tornadoes in NWS Norman area and another 6 tornadoes in the NWS Tulsa area in northeastern Oklahoma.

  • Of the 16 tornadoes, 1 was rated as F3 while 2 others were rated F2. Another 8 tornadoes were rated F1, and 5 tornadoes were rated F0.

  • The third and fourth tornadoes produced by the supercell were both anti-cyclonic.

  • The storm took a track similar to, and just north of the track taken by another cyclic supercell that had occurred slightly more than a year earlier on May 9, 2003.

  • The second tornado produced by the thunderstorm near Geary, was documented at close range by Doppler on Wheels (DOW) research scientists. A peak instantaneous wind gust was measured by the DOW team at 81 m/s (157 knots, or 181 mph) at a height of 6.5 meters above ground level (AGL) in the mesocyclone circulation just north of Geary at 6:36 PM CST.
 

GIS Data

 

Web Pages and Reports Related to the May 29-30, 2004 Event

 

Tornado Data and Information

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