Roebber, Schultz, and Romero (2001), "Synoptic Regulation of the 3 May 1999 Tornado Outbreak", was published in the Special Issue of Weather and Forecasting dedicated to the 3-4 May 1999 Tornado Outbreak.
Prof. Paul Roebber (University of Wisconsin at Milwaukee) and I have performed high-resolution MM5 simulations of the May 3 storms. Here are some preliminary results and supplemental output not shown in our manuscript.
Dynamic-Tropopause (2 PVU) Maps from the RUC
[1200 UTC 3 May] [1500 UTC 3 May] [1800 UTC 3 May] [2100 UTC 3 May] [0000 UTC 4 May] [0300 UTC 4 May]
Accumulated precipitation: 2120 UTC 3 May to 0631 UTC 4 May
Tornadoes happen every year regardless of whether we're in a La Niņa or El Niņo. The best studies conducted to date show tenuous evidence for a link between tornadoes and the phase of El Niņo. "None of the statistical comparisons that we presented allow us to differentiate tornado activity as a function of the El Niņo-Southern Oscillation phase." (Schaefer and Tatom 1998, 19th Conference on Severe Local Storms) For further discussion of this nonsense, see http://www.cimms.ou.edu/~schultz/enso.shtml or Chuck Doswell's discussion, section B.12
An interesting point was raised via email by Prof. John Monteverdi of San Francisco State University. He says, "The only different slant that I have on what you have here is that although there is no evidence (in terms of hard statistical counts) of greater or lesser frequency of tornadoes in the great plains during La Niņa, there is evidence that the synoptic scale PATTERNS during La Niņa (on average) are more favorable for supercell thunderstorms (in terms of shear) than during El Niņo." See his web page for further information.
Severe Storms Laboratory: FAQ About 3 May tornadoes
Norman, Oklahoma National Weather Service Office (graphics, public information statements, damage and aerial photos)
Roger Edwards' Lessons to be Learned from 3 May 1999
Roger Edwards' Chase Summary
Chuck Doswell's Thoughts on May 3, 1999
Scott Bachmeier's Satellite-Imagery Web Page
Travis Smith's Radar-Imagery Web Page
Randy Peppler's Damage Photos
National Severe Storms Laboratory: Other Links
vehicle in F5-damage area
Damaged vehicle in F5-damage area (close-up showing wood penetrating the metal)
Name the make and model of this vehicle
Same mystery vehicle, different angle
Remains of a steel-framed and brick building
Remains of a wood-framed building for local business: Note carpet has been pulled up from cement foundation
Close-up of metal-rod anchor connecting cement foundation to (former) wooden wall of same business
Displaced electric power box outside of same business
Outside of the Church's Fried Chicken (corner of NW 12th and Santa Fe in Moore), looking northwest
Inside of the Church's Fried Chicken with removed ceiling panels and exposed insulation
Remains of brick and wood house
Last update: 16 January 2003
Number of hits: (initiated 5/6/99).