Alongside Jim's photographs and films, official weather publications preserve his pressure readings, eyewitness video and credited imagery. The original pages are reproduced below at the point where each record enters the chronology.
The NOAA Photo Library identifies Jim as the photographer of an anticyclonic tornado west of Alva on June 6, 1975. The image is preserved as NSSL0039 in NOAA's National Severe Storms Laboratory collection.
The official monthly Storm Data publication captions a Hall County tornado photograph taken by Barbara White from a vehicle driven by Jim Leonard. The caption records the proximity of the tornado and the circumstances of the escape; photographic credit belongs to White. On the following page, the publication directly credits Jim with a photograph of a tornado near Pampa.
The September 1988 Storm Data hurricane account prints multiple photographs taken in Progreso, Yucatán, during Gilbert on September 14–15. Its caption expressly credits all photographs in the relevant group to Jim Leonard of Florida City, Florida.
The NHC's preliminary Hurricane Hugo report records Jim's portable barometer reading of 936.5 mb on Savannah Highway west of Charleston. A separate federal paper describes the video and digital-barometer record he made while sheltering in Luquillo, Puerto Rico.
Official storm documentation records an unofficial pressure observation at Hobucken identified with Leonard, 958.0 mb on September 18, 2003. The observer table preserves the location, time and measurement together.
The official NHC Charley report specifically identifies “Storm Chaser Jim Leonard” near Fawcett Memorial Hospital in Port Charlotte and lists a 950.0 mb pressure observation at 2051 UTC on August 13. It appears alongside measurements from other storm chasers and stations.
The University of South Alabama’s SECAPS program records Jim as a featured presenter on April 9. His 30-minute session addressed Hurricane Ivan and the 2004 hurricane season, placing a land-based chaser’s field experience alongside presentations by Hurricane Hunters, National Weather Service meteorologists and broadcasters.
In a Weather Prediction Center research document on Texas hurricane rainfall history, Jim is specifically thanked for providing Hurricane Allen photographs. This documents his contribution of primary visual material to government meteorological research.
