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Operation Plan
CTG Veo No, 1-53
Folder JTFT? ET6 7-3
Task Group 7.3
Washington 25, D, C,
7 December 1953, 1200R
OC Per atiou pPlaw No. (-53
Annex K
Typhoon and Tidal Wave Plan
1.
a.
General Characteristics of Typhoons.
(1)
A typhoon is defined as a violent eyclonic storm of tropical
origin with a wind force of at least 64 knots,
The area of destructive
winds within a typhoon is extremely variable, ranging between an approximate
circle of 50 miles in diameter, to as large as a circle 900 miles in
diameter,
(2) The tywhoon season in the Pacific is between the months of May
and January, Typhoons, however, may occur in any month of the year. The
MARSHALL Islands are located on the eastern fringe of the Typhoon Belt" of
the Western Pacific and are frequently subjected to tropical storms, a few
of which attain typhoon intensity, For example, typhoon HESTER passed over
ENIWETOK Atoll in Decenber, 1952.
(3)
The destructive force of a fully developed typhoon cannot be
everestinated, and the surest invitation to disaster is to ignore its capabilities,
(4) Mooring wuoys fer najor units are designed to hold in winds up
to approxinately 50 knots,
yp.
hours,
The following conditions of typhoon readiness are established:
(1) Gondition I, Winde of 56 knots or more anticipated within 12
(2)
Condition II,
(3)
Gondition III, Winds of 50 knots or more anticipated within 48
24 hours,
hours,
2.
Winds ef 50 knots or more anticipated within
Mission,
a.
To avoid the path of the typhoon, or if tnis is not possible, te make
maximum preparations and take all possible precautions to minimize its effect,
3.
Tasks,
a,
(Upon receipt of a typhoon werning),
CTU 7.3.9 — Special Devices Unit
(1) Evacuate personnel and critical material from snot locations as
required by CTG 7,1
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