Table 1. STORM DEFINITIONS
Warning
Distance Away
Wind Speed
Storm Surge
EXTRA-TROPICAL
Small Craft
N/A
18-33 knots
0
Gale
N/A
34-47 knots
0
Storm
N/A
48-63 knots
0
TROPICAL
Tropical Depression
N/A
<33 knots
0
Tropical Storm
24 hours
34-63 knots
0
Hurricane
N/A
>64 knots
>4 ft
(after MIL-HDBK-1026/4 'Mooring Design')
6
NFESC TR-6012-OCN Rev B
U.S. NAVY HEAVY WEATHER
MOORING SAFETY REQUIREMENTS