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TCCOR 4: Destructive winds of 50 knots or greater are possible within 72 hours. TCCOR 4 will be continuously in effect as a minimum condition of readiness from 1 June to 30 November annually.
TCCOR 3: Destructive winds of 50 knots or greater are possible within 48 hours.
TCCOR 2: Destructive winds of 50 knots or greater are anticipated within 24 hours.
TCCOR 1: Destructive winds of 50 knots or greater are anticipated within 12 hours.
TCCOR 1 Caution: Destructive winds of 50 knots or greater are anticipated within 12 hours. Actual winds are 34-49 knots.
TCCOR 1 Emergency: Actual winds of 50 knots or greater.
TCCOR 1 Recovery: Destructive winds of 50 knots are no longer occurring. Actual winds are 34-49 knots.
Storm Watch: The typhoon is moving away but the base is still feeling some effects. Hazardous conditions may exist due to storm damage. In some cases the storm could return to Okinawa , so stay alert.
All Clear: Hazardous conditions and winds are no longer present. Return to normal duties. All Clear is announced when all hazards have been cleared.
NOTE: The wind speeds shown above for each TCCOR serve as a guide for decision making. The final decision on TCCOR declaration rests with the Commander, 18th Wing based on wind speed, weather forecast, safety and operational and mission concerns.
Source: USFJ 10-4001 and 18th Wing Comprehensive Emergency Management Plan 10-2