1989 Pacific typhoon season

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The 1989 Pacific typhoon season has no official bounds; it ran year-round in 1989, but most tropical cyclones tend to form in the northwestern Pacific Ocean between May and November.^[1] These dates conventionally delimit the period of each year when most tropical cyclones form in the northwestern Pacific Ocean.

The scope of this article is limited to the Pacific Ocean, north of the equator and west of the international date line. Storms that form east of the date line and north of the equator are called hurricanes; see 1989 Pacific hurricane season. Tropical Storms formed in the entire west pacific basin were assigned a name by the Joint Typhoon Warning Center. Tropical depressions in this basin have the "W" suffix added to their number. Tropical depressions that enter or form in the Philippine area of responsibility are assigned a name by the Philippine Atmospheric, Geophysical and Astronomical Services Administration or PAGASA. This can often result in the same storm having two names.

Contents 1 Storms 1.1 Typhoon Brenda 1.2 Typhoon Cecil 1.3 Typhoon Dot 1.4 Tropical Storm Ellis 1.5 Super Typhoon Gordon/Goring 1.6 Tropical Storm Irving 1.7 Tropical Storm Ken-Lola 1.8 Typhoon Mac 1.9 Typhoon Sarah 1.10 Tropical Storm Tip 1.11 Tropical Storm Vera 1.12 Super Typhoon Angela 1.13 Typhoon Brian 1.14 Typhoon Colleen 1.15 Typhoon Dan 1.16 Super Typhoon Elsie 1.17 Typhoon Forrest 1.18 Typhoon Gay 2 1989 storm names 3 See also 4 References 5 External links

[edit] Storms

35 tropical cyclones formed this year in the Western Pacific, of which 31 became tropical storms. 21 storms reached typhoon intensity, of which 6 reached super typhoon strength.

[edit] Typhoon Brenda

Typhoon Brenda 1
Duration	May 14—May 21
Intensity	75 knots, 967 mbar

A tropical depression which formed in the monsoon trough on May 14 became a tropical storm on the 16th and crossed the Philippines that day. Brenda became a typhoon and reached a peak of 85 mph winds before hitting southern China on the 20th. The storm brought torrential flooding, resulting in at least 140 casualties and widespread damage.^[2]

[edit] Typhoon Cecil

Typhoon Cecil 1
Duration	May 21—May 26
Intensity	75 knots, 967 mbar

The day after Brenda dissipated another tropical depression formed in the South China Sea from the monsoon trough. It became a tropical storm later on the 22nd, and reached typhoon strength on the 24th. Cecil initially tracked to the northwest, but ridging to the north forced the typhoon westward where it hit central Vietnam on the 24th. Cecil rapidly dissipated, but not after bringing heavy flooding that killed 52 and left over 100,000 homeless.^[3]

[edit] Typhoon Dot

Typhoon Dot 3
Duration	June 2—June 11
Intensity	100 knots, 944 mbar

Forming south of the central Caroline Islands, Dot moved steadily west-northwest across the Philippines through the South China Sea across southern Hainan island into northern Vietnam.^[4]

[edit] Tropical Storm Ellis

Tropical Storm Ellis TS
Duration	June 18—June 24
Intensity	35 knots, 996 mbar

Developing as a disturbance in the Philippine Sea on June 18, the system moved westward initially and became a tropical depression late on June 20 and weakened on June 21. Early on June 23, the large system with gales well removed from its center became a tropical depression once more. A trough to its northwest had deepened, which was accelerating the cyclone northward. It became a minimal tropical storm during this accleration. Late that day, it became a frontal wave before moving through Japan into the Sea of Japan.^[5]

[edit] Super Typhoon Gordon/Goring

Super Typhoon Gordon/Goring 5
Duration	July 9—July 19
Intensity	140 knots, 898 mbar

A single Cumulonimbus cloud beneath the Tropical Upper Tropospheric Trough developed into a weak tropical depression on July 9. It tracked westward with a cold core upper level low aloft, a very unusual circumstance. Initially forecasted to remain weak due to the lack of upper level outflow, it was able to strengthen into a tropical storm on the 12th. The cold low quickly warmed, and Gordon became a typhoon on the 13th. It rapidly intensified on the 14th and 15th to a 160 mph super typhoon, and hit northern Luzon later that day at that intensity. It steadily weakened as hit moved westward, and made landfall on southern China, 100 miles southwest of Hong Kong, as a 70 mph tropical storm on the 18th. Gordon caused 97 casualties^[6] and left 120,000 homeless.^[7]

[edit] Tropical Storm Irving

Tropical Storm Irving TS
Duration	July 18—July 24
Intensity	55 knots, 984 mbar

65 mph Tropical Storm Irving hit northern Vietnam on July 24, killing 102 from heavy flooding.^[8]

[edit] Tropical Storm Ken-Lola

Tropical Storm Ken-Lola TS
Duration	July 29—August 7
Intensity	50 knots, 982 mbar

The monsoon trough spawned a tropical depression on July 29. Poorly organized, it moved quickly northeastward and became a tropical storm on the 30th. Operationally, Tropical Storm Ken continued northeastward with the rest of the convection, with Tropical Storm Lola forming further westward, but the ill-defined circulation actually continued westward, leading to one storm with two names. Ken-Lola turned to the southwest, stalling before heading northwest again. Ken-Lola reached a peak of 60 mph winds before hitting eastern China on the 3rd, causing little damage as it slowly dissipated until the 7th.^[9] Ken-Lola shows the troubles of tracking poorly organized systems. A more recent example is Tropical Depression 32W/33W in 1995.

[edit] Typhoon Mac

Typhoon Mac 2
Duration	July 30—August 8
Intensity	80 knots, 963 mbar

Moving around the northeast side of Ken-Lola, and then an upper tropospheric cyclone Mac moved along a wide northwest arc before settling on a north-northwest track into Japan as a typhoon on August 6, dissipating over Sakhalin Island on August 8.^[10]

[edit] Typhoon Sarah

Typhoon Sarah 4
Duration	September 3—September 14
Intensity	125 knots, 916 mbar

On September 9, Typhoon Sarah, which formed on the 3rd, stalled east of the Philippines, bringing heavy rain and rare tornadic activity to the country. Sarah turned northward, where it rapidly intensified to a 145 mph typhoon on the 11th. The system had 2 main centers, causing it to loop while south of Taiwan before crossing the island on the 12th. Sarah continued northwestward, and dissipated over eastern China on the 14th. 44 casualties can be attributed to this system.^[11]

[edit] Tropical Storm Tip

Tropical Storm Tip TS
Duration	September 8—September 14
Intensity	50 knots, 987 mbar

Tip formed along the eastern portion of the monsoon trough, and tracked northeast until the subtropical ridge blocked its motion in that direction. Rounding the western periphery of the ridge, Tip eventually recurved well offshore Japan and became an extratropical cyclone.^[12]

[edit] Tropical Storm Vera

Tropical Storm Vera TS
Duration	September 11—September 16
Intensity	50 knots, 987 mbar

Tropical Storm Vera, which formed on September 11, hit eastern China on the 15th as a 45 mph storm. Torrential rains and flooding caused more than 500 casualties and extensive crop damage.^[13]

[edit] Super Typhoon Angela

Super Typhoon Angela 5
Duration	September 28—October 10
Intensity	130 knots, 910 mbar

When the small Super Typhoon Angela, which developed on September 28, hit northern Luzon on October 5, it caused 62 fatalities (with 50 missing) and massive damage from flooding and mudslides. Over the next 12 days, the Philippines would be hit by 2 more typhoons; Dan and Elsie.^[14]

[edit] Typhoon Brian

Typhoon Brian 1
Duration	September 28—October 3
Intensity	80 knots, 963 mbar

^[15]

[edit] Typhoon Colleen

Typhoon Colleen 1
Duration	September 27—October 8
Intensity	80 knots, 963 mbar

^[16]

[edit] Typhoon Dan

Typhoon Dan 1
Duration	October 6—October 13
Intensity	70 knots, 972 mbar

The 2nd of 3 typhoons to hit the Philippines in a 12 day period, Dan hit the central part of the country on October 10 as a 75 mph typhoon. It continued westward to hit Vietnam on the 13th where it dissipated. Dan, though a weak system, killed 41 people as it crossed the archipelago and left 232,555 people homeless.^[17]

[edit] Super Typhoon Elsie

Super Typhoon Elsie 5
Duration	October 13—October 22
Intensity	140 knots, 898 mbar

17 casualties can be attributed to Super Typhoon Elsie hitting Luzon as a 160 mph super typhoon on October 19, just weeks after Angela and Dan hit the same area.^[18]

[edit] Typhoon Forrest

Typhoon Forrest 2
Duration	October 18—October 30
Intensity	95 knots, 949 mbar

The last of the tropical cyclones in October and the 17th typhoon of the year, Forrest was slow to develop initially near the Marshall Islands as it was a large cyclone. Once it passed Guam by only 140 km/85 mi, it intensified into a typhoon, with maximum sustained winds peaking at 95 kt/110 mph. Tree limbs and power lines were downed as the system pulled away from Saipan. It then recurved, accelerating northeast to become of the strongest extratropical cyclones in the Pacific Ocean that year.^[19]

[edit] Typhoon Gay

Typhoon Gay 5
Duration	November 1—November 10
Intensity	140 knots, 898 mbar

Main article: Typhoon Gay (1989)

Typhoon Gay was a Western Pacific typhoon that crossed the Malay Peninsula in early November. It continued westward, reaching a peak of 160 mph winds before hitting India and dissipating on the 10th. Gay killed over 1,000 people.^[20]

[edit] 1989 storm names

Western North Pacific tropical cyclones were named by the Joint Typhoon Warning Center. The first storm of 1989 was named Winona and the final one was named Jack. Though the names Ken and Lola were used separately, they were in fact one system.

Andy 2W Brenda 3W Cecil 4W Dot 5W Ellis 6W Faye 7W Gordon 8W Hope 9W Irving 10W Judy 11W Ken 13W-14W Lola 13W-14W Mac 15W Nancy 16W Owen 17W Peggy 18W Roger 20W Sarah 22W Tip 23W Vera 24W Wayne 25W

Abby Ben Carmen Dom Ellen Forrest Georgia Herbert Ida Joe Kim Lex Marge Norris Orchid Percy Ruth Sperry Thelma Vernon Wynn

Alex Betty Cary Dinah Ed Freda Gerald Holly Ian June Kelly Lynn Maury Nina Ogden Phyllis Roy Susan Thad Vanessa Warren

Agnes Bill Clara Doyle Elsie Fabian Gay Hal Irma Jeff Kit Lee Mamie Nelson Odessa Pat Ruby Skip Tess Val Winona 1W

After List 1 ended, the following names were used, part of the following years' name listing.

Angela 26W Brian 27W Colleen 28W Dan 29W Elsie 30W Forrest 31W

Gay 32W Hunt 33W Irma 34W Jack 36W Koryn Lewis

Marian Nathan Ofelia Percy Robyn Steve

Tasha Vernon Winona Yancy Zola

[edit] See also

• 1989 Pacific hurricane season
• 1989 Atlantic hurricane season
• 1989 North Indian cyclone season
• 1989-90 Southern Hemisphere tropical cyclone season

[edit] References

[edit] External links

• Typhoon2000 Philippine typhoon website.
• Philippine Area of Responsibility.
• Joint Typhoon Warning Center.
• Meaning of Tokyo Typhoon Centre names.