1994 Western Pacific typhoon season

Typhoon Doug 1994

Typhoon Doug, known as Ritang in the Philippines, brushed northern Taiwan in August 1994 before weakening over the seas east of China. Flooding and landslides caused much of its destruction in Taiwan.

PEAK INTENSITYCategory 5
Doug 1994: DOUG infrared satellite image, 1994-08-06T03:00:00Z
Digital Typhoon, National Institute of Informatics (doi:10.20783/DIAS.664). CC BY 4.0 Source
DOUG: complete recorded track, Jul 30, 1994–Aug 13, 1994Recorded track from Jul 30, 1994 to Aug 13, 1994. Colors show the recorded wind category. The highlighted position follows the replay controls.ASIAJAPANPHILIPPINESJul 30, 12:00 AM UTCJul 31, 12:00 AM UTCAug 1, 12:00 AM UTCAug 2, 12:00 AM UTCAug 3, 12:00 AM UTCAug 4, 12:00 AM UTCAug 5, 12:00 AM UTCAug 6, 12:00 AM UTCAug 7, 12:00 AM UTCAug 8, 12:00 AM UTCAug 9, 12:00 AM UTCAug 10, 12:00 AM UTCAug 11, 12:00 AM UTCAug 12, 12:00 AM UTCAug 13, 12:00 AM UTCPeak: Category 5JUL 30AUG 13

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DepressionTropical stormCat 1Cat 2Cat 3Cat 4Cat 5Post-tropical
Wind speed 161 mphPressure 930 mb
09201009702001020mphmbJul 30Aug 3Aug 8Aug 13
Forward speed 15 mphCumulative ACE 11.04 10⁴ kt²
001017.52035mph10⁴ kt²Jul 30Aug 3Aug 8Aug 13
Maximum sustained wind161 mph

161 mph

Minimum recorded pressure925 hPa

Aug 6, 1994 during the tropical stage

Recorded track duration14.25 days

Full archive record, including non-tropical stages if present

Approximate track distance3,530 mi

Along the recorded center positions

STORM HISTORY

From Guam toward Taiwan

Doug developed near the eastern end of a monsoon trough west-northwest of Guam. It moved west and strengthened during the first week of August, developing an eye before reaching Category 5 intensity. The archive records peak one-minute winds of 140 kt on August 5 and a minimum central pressure of 925 hPa the next day.

Flooding in Taiwan

Doug passed northern Taiwan on August 8. Heavy rain triggered landslides and floods, while wind brought down trees and damaged buildings. Across Taiwan, 26 people died; 126 houses collapsed and another 453 suffered damage. About 100,000 people lost electricity and water supplies. Damage estimates exceeded NT$4 billion in 1994 currency.

After passing Taiwan, Doug turned north and northeast over the East China Sea and weakened. It made a clockwise loop over the Yellow Sea before heading toward the Shanghai area as a much weaker system. Its late track contrasted with the strong westward approach earlier in the storm's life.

Further reading

NOAA IBTrACS v04r01 historical track archive

Wikipedia, Typhoon Doug

QUICK ANSWERS

Doug in brief

What was Typhoon Doug's highest wind speed?

161 mph, the highest one-minute sustained wind in its tropical stage, recorded on Aug 5, 1994, 06:00 PM UTC.

What category was Typhoon Doug?

Category 5 at its peak on the Saffir–Simpson one-minute wind scale, first reaching Category 5 on Aug 5, 1994, 06:00 PM UTC. Other agencies classify storms differently.

What was Typhoon Doug's lowest pressure?

925 mb, the minimum central pressure recorded during its tropical stage, on Aug 6, 1994, 12:00 AM UTC.

When did Typhoon Doug occur?

The archived track runs from Jul 30, 1994, 12:00 AM UTC to Aug 13, 1994, 06:00 AM UTC, with the tropical stage from Aug 1, 1994, 06:00 AM UTC to Aug 13, 1994, 12:00 AM UTC.

Where did Typhoon Doug form?

In the Western Pacific basin, in the 1994 season. Its first archived position is 12°N, 151.7°E on Jul 30, 1994, 12:00 AM UTC.

Did Typhoon Doug make landfall?

The archive places its center over land at 2 recorded positions; the strongest is 35 mph on Aug 12, 1994, 06:00 PM UTC. Positions are six-hourly, so this is not a landfall chronology.

METHODOLOGY

Data sources and limitations

The map and summary are generated from NOAA's IBTrACS v04r01 archive. Wind and category use US-agency records; minimum pressure is calculated during the tropical stage, with the archive's pressure source retained. Category 5 refers to the Saffir–Simpson one-minute wind scale; local agencies may use different classifications. Coastlines use Natural Earth's 1:10m land data.

Track distance adds great-circle distances between consecutive observations, excluding gaps over 12 hours. This track has no gaps over 12 hours. The line shows the storm's center, not its size, rainfall or flood extent. Converted wind speeds are rounded to the nearest whole unit.

Archive retrieved

NOAA IBTrACS archive and Field documentation

Sources & methodology