A sharp increase in the annual average E/F0–1 count by approximately 200 tornadoes was noted upon the implementation of NEXRAD Doppler weather radar in 1990–1991.
[15][note 7] 1974 marked the first year where significant tornado (E/F2+) counts became homogenous with contemporary values, attributed to the consistent implementation of Fujita scale assessments.
This powerful, multiple-vortex tornado touched down near Speer, tracked east-southeastward through the rural community of Messer, and traversed the Hugo Reservoir.
Photographs of the bare concrete slab suggested, however, that the home was improperly anchored: only F3-level winds may have been needed to produce the observable effects on the structure.
Further on, the tornado attained a peak width of 1+1⁄2 mi (2.4 km; 2,600 yd; 2,400 m) and produced F4-level damage to ranch-style homes near Golden.
The tornado also destroyed chicken coops, mobile homes, and a church, along with agricultural implements, electrical lines, and tracts of timber.
Developing near the intersection of Campbell Street and Loop 286, it extensively damaged or destroyed more than 465 residences and left approximately 1,000 people homeless in town.
Large, well-built apartments with numerous interior walls were unroofed as the "ragged funnel cloud" left behind $50 million in losses at Paris.
That more casualties did not occur was attributable to the fact that residents of Paris received ample warning, up to half an hour in advance, in part via NOAA Weather Radio.