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to the southeast. The JTWC recognized the system as a tropical storm on
February 12, and upgraded it into a tropical cyclone shortly thereafter. Vaianu continued to strengthen, and passed west of Tonga. The JTWC reported that the cyclone peaked in intensity at 1200 UTC on February 13, with maximum
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islands were placed under a gale warning. The warnings stayed in force until late on
February 12 when the gale warning was canceled, and concurrently, southern Tonga was placed under a tropical cyclone warning. These warnings were canceled on February 14. During the cyclone, RSMC Nadi placed the
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at 1400 UTC on
February 13, and 97.7 mm (3.85 in) of rain fell. Since the cyclone remained predominantly over water, its effects were limited. Nonetheless, portions of Tongan experienced torrential rainfall and high winds. On Tongatapu and
457:, the storm inflicted extensive crop damage, and it is estimated that 70% of the banana crop was destroyed. While little property damage took place, the storm caused power outages across its path that took up a week to fully restore. In
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862:
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sustained 1-minute winds of 140 km/h (85 mph). RSMC Nadi assessed the storm as having peaked slightly later, with 10-minute winds of 130 km/h (80 mph), which made it a
Category 3 severe tropical cyclone.
209:. Moving into cooler waters, the storm dissipated on February 16. Although the cyclone avoided land for the most part, it caused heavy rainfall and gusty winds in portions of Tonga. Flooding hit the capital city of
461:, the capital of Tonga, flooding of low-lying areas reportedly shut down the city for two days. The high winds brought down trees and dispersed debris throughout the region, while schools were forced to close.
855:
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At the Fuaʻamotu station, sustained winds blew at 68 km/h (42 mph) during the worst of the storm, with gusts reaching 100 km/h (62 mph). Barometric pressure there fell to 995
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341:. During the next day, the depression turned towards the southeast and moved into a more favorable environment for intensification. It was then designated as Tropical Depression 11P at 1800
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349:(JTWC). On February 11, the system significantly organized, and at 1200 UTC that day, RSMC Nadi reported that the depression had intensified into a Category 1 tropical cyclone on the
197:. The system formed on February 11, and moved generally towards the south throughout its life. Vaianu ultimately peaked with winds corresponding to Category 1 status on the
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396:. At 0600 UTC, the JTWC classified it as extratropical, but it remained a powerful storm system for several days as it tracked over the open ocean.
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Tropical Depression 12F had developed within a convergence zone which was located about 140 km (87 mi) to the northeast of
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under a tropical cyclone alert, before early the next day extending the alert to the whole of Tonga. Later that day the
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At the time of being upgraded to a cyclone, Vaianu was situated about 190 km (120 mi) to the northwest of
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337:. The depression tracked southeastward, although further development was initially inhibited by
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Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
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380:. Beginning to accelerate, Vaianu entered the area of responsibility of the
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under a strong wind warning, and a damaging swell warning was declared for
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The storm held its strength for some time as it moved southward between
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621:. Fiji Meteorological Service. September 8, 2007. Archived from
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249:
Tropical storm (39–73 mph, 63–118 km/h)
244:
Tropical depression (≤38 mph, ≤62 km/h)
317:, remnant low, tropical disturbance, or monsoon depression
269:
Category 4 (130–156 mph, 209–251 km/h)
264:
Category 3 (111–129 mph, 178–208 km/h)
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259:
Category 2 (96–110 mph, 154–177 km/h)
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Category 1 (74–95 mph, 119–153 km/h)
528:"Monthly Tropical Weather Summary for February 2006"
274:
Category 5 (≥157 mph, ≥252 km/h)
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213:, and on some islands, the storm destroyed crops.
1150:Category 3 South Pacific severe tropical cyclones
789:"Big clean-up for Tongan citizens after storm"
768:. Tonga Meteorological Service. March 30, 2006
741:"Severe Weather Warnings issued on 2006-02-14"
719:"Severe Weather Warnings issued on 2006-02-13"
697:"Severe Weather Warnings issued on 2006-02-12"
675:"Severe Weather Warnings issued on 2006-02-11"
648:"Severe Weather Warnings issued on 2006-02-10"
583:. Joint Typhoon Warning Center. Archived from
550:"Severe Weather Warnings issued on 2006-02-09"
1134:
856:
8:
616:"Tropical Cyclone Summary: 2005-2006 Season"
19:
351:Australian tropical cyclone intensity scale
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1127:
1119:
863:
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841:
669:
667:
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327:Regional Specialized Meteorological Centre
165:
25:
18:
16:Category 3 South Pacific cyclone in 2006
763:"A report on Tropical Cyclone "Vaianu""
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412:Early on February 10, RSMC Nadi placed
408:Cyclone Vaianu weakening on February 15
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109:Category 1-equivalent tropical cyclone
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1741:2005–06 South Pacific cyclone season
873:2005–06 South Pacific cyclone season
581:"JTWC Best Track for Cyclone Vaianu"
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487:2005–06 South Pacific cyclone season
195:2005–06 South Pacific cyclone season
178:2005–06 South Pacific cyclone season
353:; it was assigned the name Vaianu.
31:Cyclone Vaianu on February 13, 2006
787:Staff Writer (February 15, 2006).
61:Category 3 severe tropical cyclone
14:
1751:Category 3 South Pacific cyclones
816:World Meteorological Organization
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743:. MT Archive. February 14, 2006
721:. MT Archive. February 13, 2006
699:. MT Archive. February 12, 2006
677:. MT Archive. February 11, 2006
650:. MT Archive. February 10, 2006
526:Simon Clarke (April 25, 2006).
445:closed as the storm passed by.
382:Tropical Cyclone Warning Centre
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552:. MT Archive. February 9, 2006
199:Saffir-Simpson Hurricane Scale
187:Severe Tropical Cyclone Vaianu
20:Severe Tropical Cyclone Vaianu
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826:Fiji Meteorological Service
134:140 km/h (85 mph)
82:130 km/h (80 mph)
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1756:Tropical cyclones in 2006
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1717:Tropical cyclones portal
479:Tropical cyclones portal
394:extratropical transition
390:sea surface temperatures
325:Late on February 9, the
1214:Lottie – Natalie (1973)
400:Preparations and impact
386:Wellington, New Zealand
831:New Zealand MetService
793:The New Zealand Herald
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217:Meteorological history
38:Meteorological history
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315:Extratropical cyclone
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189:was the fourth named
236:Saffir–Simpson scale
87:Lowest pressure
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68:10-minute sustained
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147:None reported
146:
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106:
102:
98:
94:
89:
85:
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65:
58:
54:
50:
46:
42:
35:
28:
23:
1727:
1608:Garry (2013)
1561:
1552:Kerry (2005)
1501:Frank (1999)
1491:Zuman (1998)
1446:Tomas (1994)
1436:Polly (1993)
1416:Daman (1992)
1365:Cilla (1988)
1345:Sally (1986)
1325:Freda (1985)
1320:Nigel (1985)
1280:Freda (1981)
1275:Cliff (1981)
1184:Wendy (1972)
1164:Dolly (1970)
796:. Retrieved
792:
782:
770:. Retrieved
757:
745:. Retrieved
735:
723:. Retrieved
713:
701:. Retrieved
691:
679:. Retrieved
652:. Retrieved
642:
630:. Retrieved
623:the original
589:. Retrieved
585:the original
554:. Retrieved
544:
532:. Retrieved
447:
418:Niuatoputapu
411:
371:
355:
324:
284:
234:
186:
185:
176:
175:Part of the
115:
67:
1684:Cody (2022)
1674:Uesi (2020)
1669:Tino (2020)
1653:Rita (2019)
1643:Keni (2018)
1638:Cook (2017)
1633:Amos (2016)
1628:Zena (2016)
1613:Lusi (2014)
1603:Bune (2011)
1598:Yasi (2011)
1577:Gene (2008)
1572:Yani (2006)
1567:Wati (2006)
1547:Gina (2003)
1532:Mona (2000)
1522:Iris (2000)
1506:Hali (1999)
1496:Cora (1998)
1486:Yali (1998)
1476:Osea (1997)
1466:Keli (1997)
1461:Hina (1997)
1456:Evan (1996)
1441:Rewa (1993)
1426:Nina (1992)
1421:Kina (1992)
1406:Sina (1990)
1401:Peni (1990)
1385:Lili (1989)
1380:Judy (1989)
1360:Yali (1987)
1355:Wini (1987)
1350:Tusi (1987)
1340:Raja (1986)
1335:Namu (1986)
1315:Eric (1985)
1310:Beti (1984)
1300:Nano (1983)
1295:Mark (1983)
1265:Sina (1980)
1260:Peni (1980)
1244:Meli (1979)
1209:Bebe (1972)
1199:Gail (1972)
1169:Emma (1970)
1066:15F (Larry)
798:January 27,
772:January 27,
747:January 27,
725:January 27,
703:January 27,
681:January 27,
654:January 27,
632:January 27,
591:January 27,
556:January 30,
534:January 27,
435:Lau Islands
1735:Categories
1679:Ana (2021)
1648:Oma (2019)
1618:Ola (2015)
1593:Pat (2010)
1557:Jim (2006)
1542:Ami (2003)
1431:Lin (1993)
1411:Tia (1991)
1375:Ivy (1989)
1229:Bob (1978)
1204:Ida (1972)
493:References
459:Nuku'alofa
443:Nuku'alofa
339:wind shear
335:Vanua Levu
331:Nadi, Fiji
329:(RSMC) in
285:Storm type
211:Nuku'alofa
144:Fatalities
52:Dissipated
1527:Jo (2000)
1157:Pre-1980s
450:millibars
414:Niuafo'ou
378:Tongatapu
374:Ono-i-Lau
1707:Category
1108:Category
465:See also
279:Unknown
345:by the
229:Map key
193:of the
163:IBTrACS
1030:Vaianu
430:Nomuka
428:, and
426:Haapai
358:Vavaʻu
277:
272:
267:
262:
257:
252:
247:
242:
44:Formed
1662:2020s
1586:2010s
1515:2000s
1394:1990s
1253:1980s
958:Urmil
766:(PDF)
626:(PDF)
619:(PDF)
422:Vavau
366:ridge
362:Tonga
207:Tonga
156:Tonga
120:SSHWS
1078:Wati
800:2010
774:2010
749:2010
727:2010
705:2010
683:2010
656:2010
634:2010
593:2010
558:2010
536:2010
439:Fiji
416:and
376:and
360:, a
205:and
203:Fiji
124:JTWC
101:inHg
97:mbar
91:965
1090:17F
1054:14F
1042:13F
1018:11F
1006:10F
994:09F
982:Jim
970:07F
946:05F
934:Tam
922:03F
910:02F
898:01F
455:Eua
384:in
343:UTC
93:hPa
72:FMS
1737::
1085:TD
1061:TD
1049:TD
1037:TD
1013:TD
1001:TD
989:TD
965:TD
941:TD
917:TD
905:TD
893:TD
791:.
664:^
601:^
566:^
500:^
424:,
1142:e
1135:t
1128:v
1073:3
1025:3
977:3
953:2
929:1
864:e
857:t
850:v
802:.
776:.
751:.
729:.
707:.
685:.
658:.
636:.
595:.
560:.
538:.
126:)
122:/
118:(
95:(
74:)
70:(
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