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A097404 Minimum wind speed in statute miles per hour for Beaufort Number n. 1
0, 1, 5, 8, 13, 20, 25, 32, 39, 47, 55, 64, 74, 83, 93, 104, 115, 126 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
COMMENTS
See the main entry (A097403) for more details. One statute mile is 5280 feet. The first thirteen terms here are derived directly (by me) by converting the corresponding terms of A097403 from knots to statute miles per hour (rounding to the nearest mph). (Whether I use 6076.115, 6080, or 6080.20 feet per nautical mile, makes no difference in the results of my conversions.) The remaining five terms are taken directly from Webster's Third (W3) since I do not currently have all the corresponding terms for A097403. (W3 also indicates that Beaufort Number 17 has an upper limit of 136 mph.) There are discrepancies among my sources for a(2), a(4), a(5) and a(12). Notably, a Merriam-Webster Dictionary says in a footnote that the U.S. uses a(12)=74 for hurricane -- but both it and W3 list 73 in their main tables (so, presumably, those tables are UK- or internationally-oriented). Both dictionaries give a(2)=4 and a(5)=19.
LINKS
Met Office, The Beaufort Scale.
EXAMPLE
a(8) = 39 because Beaufort Number 8 (Wind Force 8 of the Beaufort Scale, a gale) corresponds to 39 mph up to a(9)-1 = 46 mph of wind speed.
CROSSREFS
Cf. A097403 (same, in knots (main entry)).
Sequence in context: A314459 A314460 A314461 * A020687 A035423 A314462
KEYWORD
fini,full,nonn
AUTHOR
Rick L. Shepherd, Aug 14 2004
STATUS
approved

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Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)