2009 Western Pacific typhoon season
Typhoon Nida 2009
Nida intensified rapidly southeast of Guam and remained over the western Pacific through the start of December. Its strongest winds occurred far from any archived land crossing.
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178 mph
Nov 25, 2009 during the tropical stage
Full archive record, including non-tropical stages if present
Along the recorded center positions
STORM HISTORY
Rapid growth near Micronesia
Nida developed within the monsoon trough southeast of Guam. Weak wind shear allowed thunderstorms to gather around its initially elongated center as the system moved northwestward. It became a named tropical storm on November 23 and soon developed an eye.
Rapid intensification followed, taking the cyclone to Category 5 strength. The archive records a maximum sustained wind of 155 knots on November 25. Warnings covered Faraulep, Fais and Ulithi during the approach, then ended as Nida moved away to the northwest.
Slow movement and eventual weakening
Nida's intensity fluctuated after its first peak, and the typhoon remained nearly stationary for more than two days. Increasing wind shear associated with the northeast monsoon eventually disrupted the circulation. It weakened to a depression on December 2, near the end of an archived track that continues into December 3. No recorded position places its center over land.
Further reading
QUICK ANSWERS
Nida in brief
What was Typhoon Nida's highest wind speed?
178 mph, the highest one-minute sustained wind in its tropical stage, recorded on Nov 25, 2009, 12:00 PM UTC.
What category was Typhoon Nida?
Category 5 at its peak on the Saffir–Simpson one-minute wind scale, first reaching Category 5 on Nov 25, 2009, 09:00 AM UTC. Other agencies classify storms differently.
What was Typhoon Nida's lowest pressure?
907 mb, the minimum central pressure recorded during its tropical stage, on Nov 25, 2009, 12:00 PM UTC.
When did Typhoon Nida occur?
The archived track runs from Nov 21, 2009, 06:00 AM UTC to Dec 3, 2009, 12:00 PM UTC, with the tropical stage from Nov 22, 2009, 06:00 AM UTC to Dec 3, 2009, 03:00 AM UTC.
Where did Typhoon Nida form?
In the Western Pacific basin, in the 2009 season. Its first archived position is 5.6°N, 147.9°E on Nov 21, 2009, 06:00 AM UTC.
Did Typhoon Nida make landfall?
No archived position places Typhoon Nida's center over land, but positions are six-hourly and a brief landfall can fall between them.
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