MARINE WEATHER BULLETIN FOR ISLANDS AREA
EQUATOR TO 25S BETWEEN 160E AND 120W.
ISSUED BY FIJI METEOROLOGICAL SERVICE AUG 172000 UTC.
PART 1 : WARNING NIL.
PARTS 2 AND 3 : SYNOPSIS AND FORECAST VALID UNTIL AUG 181800 UTC.
LOW PRESSURE L CENTER [1007HPA] WAS ANALYSED NEAR 08.0S 168.0E AT
171800UTC. POSITION POOR. SLOW MOVING.
TROUGH T1 07S 161E 07S 165E TO L TO 10S 170E 13S 175W 16S 180 20S
173W 25S 165W SLOW MOVING. POOR VISIBILITY IN OCCASIONAL RAIN, HEAVY
AT TIMES AND ISOLATED THUNDERSTORMS WITHIN 120 NAUTICAL MILES OF T1
IN THE AREA NORTH OF 12S. ELSEWHERE, POOR VISIBILITY IN OCCASIONAL
SHOWERS, HEAVY AT TIMES AND ISOLATED THUNDERSTORMS WITHIN 120
NAUTICAL MILES OF T1
TROUGH T2 FM L TO 07S 169E 06S 172E 05S 174E SLOW MOVING. POOR
VISIBILITY IN OCCASIONAL RAIN, HEAVY AT TIMES AND ISOLATED
THUNDERSTORMS WITHIN 090 NAUTICAL MILES OF T2.
TROUGH T3 07S 172W 08S 165W 08S 156W 09S 151W 10S 147W SLOW MOVING.
POOR VISIBILITY IN OCCASIONAL SHOWERS, HEAVY AT TIMES AND ISOLATED
THUNDERSTORMS WITHIN 100 NAUTICAL MILES OF T3.
STATIONARY FRONT SF 16S 135W 18S 126W 20S 120W SLOW MOVING. POOR
VISIBILITY IN SOME SHOWERS WITHIN 100 NAUTICAL MILES OF T4.
IN THE AREA WEST AND SOUTH OF T1, EXPECT SOUTH TO SOUTHEASTERLY WINDS
20 TO 30 KNOTS. ROUGH TO VERY ROUGH SEAS. MODERATE SOUTHERLY SWELLS.
MARINE WEATHER BULLETIN FOR SUBTROPIC
Area from 25S to 40S, western boundary from 40S 163E to 29S 170E then to 25S 170E, eastern boundary 170W.
Issued by Meteorological Service of New Zealand,
Wellington issued at 171904UTC Valid until 181200UTC.
Part 1 - WARNINGS
WARNINGS IN FORCE: 366
Part 2 - Situation analysis at 171800UTC:
Low L1 992hPa near 40S 170W, slow moving.
Area A1 bounded by 32S 168E 25S 169E 25S 177E 32S 176E 32S 168E, slow moving.
Part 3 - Forecast:
Refer to latest warnings.
Within 780 nautical miles of L1 in northwest quadrant: Clockwise 25kt, with gales as in warning 366, areas of heavy swell.
Within A1: Areas of heavy southerly quarter swell, easing by 180600UTC.
Outlook for the following 72 hours:
East of 175E: Southwest quarter 30kt to gale, easing by 191200UTC, areas of heavy southwest quarter swell, easing by 200600UTC.
MARINE WEATHER BULLETIN FOR FORTIES
Area from 40S to 55S, western boundary from 40S 163E to 45S 160E then to 55S 160E, eastern boundary 170W.
Issued by Meteorological Service of New Zealand,
Wellington issued at 171904UTC Valid until 181200UTC.
Part 1 - WARNINGS
WARNINGS IN FORCE: NIL
Part 2 - Situation analysis at 171800UTC:
Ridge R1 40S 165E 46S 164E 55S 150E, slow moving.
Part 3 - Forecast:
Refer to latest warnings.
East of R1: Southwest quarter 30kt, areas of heavy southwest quarter swell.
Outlook for the following 72 hours:
South and east of the South Island: Westerly quarter 30kt to gale at times, areas of heavy westerly quarter swell.
MARINE WEATHER BULLETIN FOR SOUTHERN
Area from 55S to southern ice edge between 160E and 120W.
Issued by Meteorological Service of New Zealand,
Wellington issued at 171904UTC Valid until 181200UTC.
Part 1 - WARNINGS
WARNINGS IN FORCE: 367 368 369
Part 2 - Situation analysis at 171800UTC:
Area A1 bounded by 62S 142W 62S 135W 64S 120W 70S 120W 62S 142W, moving southeast 15kt.
Ridge R1 55S 143W 59S 134W 59S 120W, moving east 10kt.
Front F1 55S 165W 60S 160W 65S 156W, moving east 25kt.
Area A2 bounded by 65S 165W 65S 135E 59S 140E 61S 172W 65S 165W, moving east 30kt.
Part 3 - Forecast:
Refer to latest warnings.
Within A1: Heavy ice accretion as in warning 368, easing to moderate by 181200UTC.
Within 540 nautical miles south of R1: Northwest quarter 25kt.
Within 540 nautical miles west of R1: Northerly quarter 30kt developing by 181200UTC, areas of fog, with poor visibility in precipitation.
Within 300 nautical miles east of F1: Northwest quarter 30kt.
West of F1: Westerly quarter 30kt, with gales as in warning 367, areas of poor visibility in precipitation, areas of heavy westerly quarter swell.
Within A2: Heavy ice accretion as in warning 369.
Southern Ice Edge between 160E and 120W issued 17 Aug 2026 UTC
62.7S,160.0E 63.3S,170.0E 64.8S,180.0
63.3S,170.0W 62.9S,160.0W 58.3S,150.0W
61.5S,140.0W 65.6S,130.0W 68.4S,120.0W
Ice edge not for navigational purposes.
MARINE WEATHER BULLETIN FOR PACIFIC
Area from 25S to 55S and 170W to 120W.
Issued by Meteorological Service of New Zealand,
Wellington issued at 171904UTC Valid until 181200UTC.
Part 1 - WARNINGS
WARNINGS IN FORCE: 365 366
Part 2 - Situation analysis at 171800UTC:
Front F1 25S 165W 38S 158W 43S 158W, moving east 25kt.
Low L1 992hPa near 43S 165W, moving southeast 30kt.
Part 3 - Forecast:
Refer to latest warnings.
Within 600 nautical miles east of F1: Northerly quarter 25kt, with gales as in warning 365, areas of poor visibility in rain, areas of heavy northerly quarter swell.
West of F1 from 25S 165W to 38S 158W: Westerly quarter 25kt, with gales as in warning 366, areas of poor visibility in showers, areas of heavy southwest quarter swell.
Within 660 nautical miles of L1 in southeast quadrant: Clockwise 25kt, areas of poor visibility in showers, areas of heavy swell.
Outlook for the following 72 hours:
Low near 38S 154W, moving southeast. Within 1000 nautical miles of Low in eastern semicircle: Clockwise 30kt to gale. Within 700 nautical miles of Low in western semicircle: Clockwise 30kt to gale at times. Ridge near 25S 134W, extending south, moving east. West of Ridge: Areas of heavy westerly quarter swell.