WWKU40 NFFN 160600 PART 1 OF 2 RNZI SPECIAL WEATHER BULLETIN NUMBER FOUR FOR NORTHERN COOKS ON TROPICAL DEPRESSION TD01F ISSUED FROM RSMC NADI OCT 160750 UTC. A TROPICAL CYCLONE WARNING REMAINS IN FORCE FOR SUWARROW A TROPICAL CYCLONE ALERT REMAINS IN FORCE FOR PALMERSTON, AITUTAKI AND NEARBY ISLANDS TROPICAL DEPRESSION TD01F CENTRE [996 HPA] WAS LOCATED NEAR 10.8 DEGREES SOUTH 163.4 DEGREES WEST OR ABOUT 140 NAUTICAL MILES NORTH OF SUWARROW AT 160600UTC. TD01F HAS MAXIMUM SUSTAINED WINDS OF ABOUT 30 KNOTS CLOSE TO ITS CENTRE WITH GUSTS TO 45 KNOTS. TD01F IS GRADUALLY MOVING SOUTH SOUTHEAST AT ABOUT 06 KNOTS. TD01F IS EXPECTED TO FURTHER INTENSIFY AND DEVELOP INTO A CATEGORY 1 TROPICAL CYCLONE TOMORROW MORNING. ON THE FORECAST TRACK, TD01F IS EXPECTED TO PASS CLOSE TO SUWARROW DURING FRIDAY AFTERNOON AND EVENING BEFORE MOVING TOWARDS THE SOUTHERN COOK ISLANDS LATER ON SATURDAY. DAMAGING GALE FORCE WINDS MAY DEVELOP OVER SUWARROW FROM LATER TONIGHT. GALE FORCE WINDS MAY ALSO AFFECT PALMERSTON, AITUTAKI AND OTHER PARTS OF THE SOUTHERN COOK ISLANDS DURING THE WEEKEND. FOR SUWARROW: STRONG EAST TO SOUTHEAST WINDS 20 TO 25 KNOTS WITH GUSTS TO 35 KNOTS, POSSIBLY INCREASING TO DAMAGING GALE FORCE WINDS WITH SUSTAINED WINDS OF 35 KNOTS AND GUSTS TO 50 KNOTS FROM LATER TONIGHT. RAIN AND SQUALLY THUNDERSTORMS BECOMING FREQUENT AND HEAVY. VERY ROUGH TO HIGH SEAS WITH DAMAGING HEAVY SWELLS. FOR THE REST OF NORTHERN COOK ISLANDS: FRESH TO STRONG WINDS 20 TO 25 KNOTS WITH GUSTS TO 35 KNOTS. PERIODS OF RAIN, HEAVY AT TIMES, WITH SQUALLY THUNDERSTORMS. ROUGH TO VERY ROUGH SEAS WITH MODERATE TO HEAVY SWELLS.