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 202014UTC Valid until 211200UTC.
Part 1 - WARNINGS
WARNINGS IN FORCE: NIL
Part 2 - Situation analysis at 201800UTC:
Ridge R1 38S 164E 33S 175E 27S 170W, slow moving.
Part 3 - Forecast:
Refer to latest warnings.
Ridge R1: Dominates the area.
Outlook for the following 72 hours:
South of 37S: Westerly quarter 30kt at times between 220600UTC to 231200UTC. East of 176W: Areas of heavy southerly swell clearing by 221200UTC. West of the North Island, heavy southwest swell developing after 230000UTC.
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 202014UTC Valid until 211200UTC.
Part 1 - WARNINGS
WARNINGS IN FORCE: 425 426
Part 2 - Situation analysis at 201800UTC:
Ridge R1 40S 179W 48S 176E 55S 175E, moving east 15kt.
Front F1 40S 157E 44S 160E 48S 164E, moving east 5kt.
Front F2 48S 164E 51S 164E 55S 163E, moving east 20kt.
Part 3 - Forecast:
Refer to latest warnings.
East of R1: Southwest quarter 30kt, with gales as in warning 425, easing by 210000UTC, areas of heavy southwest quarter swell.
Within 240 nautical miles east of F1: Northwest quarter 30kt at times, with gales as in warning 426, areas of poor visibility in rain.
Within 540 nautical miles east of F2: Northwest quarter 30kt, areas of poor visibility in showers.
West of F2: Areas of fog.
Outlook for the following 72 hours:
Ridge along 170E, moving east. East of ridge: Southwest 30kt to gale and heavy southwest swell. West of ridge: Northwest quarter 30kt to gale at times. Trough expected along 160E at 220600UTC, moving east. West of trough: Heavy westerly quarter swell and westerly quarter 30kt to gale, with westerly storm at times within 200 nautical miles of the trough.
MARINE WEATHER BULLETIN FOR PACIFIC
Area from 25S to 55S and 170W to 120W.
Issued by Meteorological Service of New Zealand,
Wellington issued at 202014UTC Valid until 211200UTC.
Part 1 - WARNINGS
WARNINGS IN FORCE: 423 424 425
Part 2 - Situation analysis at 201800UTC:
Front F1 25S 135W 40S 126W 46S 137W 55S 140W, moving east 10kt.
Trough T1 39S 137W 30S 140W 28S 141W, moving east 40kt.
Low L1 979hPa developing near 50S 152W by 210000UTC, then moving northeast 25kt.
Part 3 - Forecast:
Refer to latest warnings.
East of F1: Northerly quarter 30kt at times, with gales as in warnings 423 424, areas of poor visibility in rain.
Within 300 nautical miles west of F1 from 46S 137W to 55S 140W: Southerly quarter 30kt at times.
Within 900 nautical miles west of F1: Areas of heavy westerly quarter swell.
Within 240 nautical miles east of T1: Northwest 25kt, areas of poor visibility in showers.
Within 840 nautical miles of L1 in sector from south through west to northeast: Clockwise 30kt, with gales as in warning 425, areas of poor visibility in rain, areas of heavy southwest quarter swell.
Outlook for the following 72 hours:
Trough along 140W, moving east. East of trough: Northerly quarter 30kt to gale and heavy northerly quarter swell. West of trough: Westerly quarter 30kt to gale at times and heavy westerly quarter swell. Low expected near 43S 147W at 211200UTC, moving northeast. Within 250 nautical miles of low, in western semicircle: Clockwise storm, easing to gale by 230000UTC.
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 202014UTC Valid until 211200UTC.
Part 1 - WARNINGS
WARNINGS IN FORCE: 424 427
Part 2 - Situation analysis at 201800UTC:
Front F1 55S 139W 60S 138W 67S 138W, moving east 10kt.
Area A1 bounded by 67S 167E 62S 172E 56S 142W 67S 143W 67S 167E, moving eastsoutheast 15kt.
Front F2 55S 176E 60S 170E 64S 159E, moving east 30kt.
Part 3 - Forecast:
Refer to latest warnings.
Throughout area: Areas of heavy westerly quarter swell.
West of F1: Westerly quarter 30kt at times, areas of poor visibility in precipitation.
East of F1: Northerly quarter 30kt, with gales as in warning 424, areas of poor visibility in rain.
Within 60 nautical miles northwest of F1: Areas of fog.
Within A1: Heavy ice accretion as in warning 427.
West of F2: Areas of fog.
Southern Ice Edge between 160E and 120W issued 20 Aug 2026 UTC
62.8S,160.0E 63.1S,170.0E 64.6S,180.0
63.0S,170.0W 63.2S,160.0W 59.9S,150.0W
62.0S,140.0W 65.7S,130.0W 66.6S,120.0W
Ice edge not for navigational purposes.
MARINE WEATHER BULLETIN FOR ISLANDS AREA
EQUATOR TO 25S BETWEEN 160E AND 120W.
ISSUED BY FIJI METEOROLOGICAL SERVICE Aug 202000 UTC.
PART 1 : WARNING NIL.
PARTS 2 AND 3 : SYNOPSIS AND FORECAST VALID UNTIL Aug 211800 UTC.
LOW PRESSURE L CENTRE [1008HPA] WAS ANALYSED NEAR 05.0S 163.0E AT
201800UTC. POSITION POOR. SLOW MOVING.
TROUGH T1 EQT 160E 03S 166E TO L TO 05S 160E 13S 165E 17S 172E 20S
178W. T1 SLOW MOVING. POOR VISIBILITY IN OCCASIONAL RAIN, HEAVY AT
TIMES AND ISOLATED THUNDERSTORMS WITHIN 120 NAUTICAL MILES OF T1.
TROUGH T2 15S 170E 12S 178E 05S 180 EQT 175W SLOW MOVING. POOR
VISIBILITY IN OCCASIONAL RAIN, HEAVY AT TIMES AND FEW THUNDERSTORMS
WITHIN 120 NAUTICAL MILES OF T2.
TROUGH T3 07S 169W 15S 158W 20S 147W 25S 135W SLOW MOVING. POOR
VISIBILITY IN SOME SHOWERS AND ISOLATED THUNDERSTORMS WITHIN 120
NAUTICAL MILES OF T3.
IN THE AREA SOUTH OF 11S AND WEST OF 170W, EXPECT SOUTHEAST WINDS UP
TO 30 KNOTS. ROUGH TO VERY ROUGH SEAS.
IN THE AREA SOUTH OF 05S AND WEST OF 150W, EXPECT MODERATE SOUTHERLY
SWELLS.