Enclosure (3) to COMDTINST 3140.3D
13 JAN 1988
INSTRUCTIONS ON SPECIAL WEATHER REPORTS
IMPORTANT !!
SEND A SPECIAL WEATHER REPORT
BETWEEN SCHEDULED REPORTS IF:
WIND*
(1) The wind speed doubles to 25 knots or higher,
(2) Increases to 34 knots (gale force) or higher and gale warnings are not in effect, or
(3) Increases to 47 knots or higher and storm warnings are not in effect.
VISIBILITY . . . .The prevailing visibility lowers to 1/2 mile or less from 2 miles or greater.
WAVES . . . . . . If open water wave conditions, inlet or bar conditions become hazardous to boats.
PRESSURE . . . . .The Barometer falls 12/100ths inch of mercury or more over a 2 hour period.
*NOTE: Winds refer to average winds speeds.
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