In reply: The "30/30" rule is a simple and easy-to-remember rule designed to reduce the probability of lightning strikes. Two important studies over recent years have led to its development.
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Correspondence: m.makdissi@pgrad.unimelb.edu.au
- 1. Holle RL, Lopez RE, Ortiz R, et al. The local meteorological environment of lightning casualties in central Florida. Pre-prints, 17th Conference on Severe Local Storms and Conference on Atmospheric Electricity. St. Louis, Missouri. Boston: American Meteorological Society, 1993; 779-784.
- 2. Lopez RE, Holle RL. The distance between successive lightning flashes. NOAA Technical Memorandum ERL NSSL-105. 1999.
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