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WESTERN PACIFIC · 1987 SEASON

Typhoon Holly (1987)

Recorded track and intensity · 1 Sept 1987–18 Sept 1987

PEAK INTENSITYCategory 5
THE COMPLETE TRACKOpen in the explorer
HOLLY: complete recorded track, 1 Sept 1987–18 Sept 1987Recorded track from 1 Sept 1987 to 18 Sept 1987. Colors show the recorded wind category. The highlighted position follows the replay controls.JAPANPacific Ocean2 Sep, 00:00 UTC3 Sep, 00:00 UTC4 Sep, 00:00 UTC5 Sep, 00:00 UTC6 Sep, 00:00 UTC7 Sep, 00:00 UTC8 Sep, 00:00 UTC9 Sep, 00:00 UTC10 Sep, 00:00 UTC11 Sep, 00:00 UTC12 Sep, 00:00 UTC13 Sep, 00:00 UTC14 Sep, 00:00 UTC15 Sep, 00:00 UTC16 Sep, 00:00 UTC17 Sep, 00:00 UTC18 Sep, 00:00 UTCPeak · Category 51 SEP18 SEP

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DepressionTropical stormCat 1Cat 2Cat 3Cat 4Cat 5Post-tropical
All times UTC

Wind speed & pressure

9 Sep, 12:00 UTC
Wind speed 140 ktPressure 900 hPa
0900809601601020kthPa1 Sep6 Sep12 Sep18 Sep

Forward speed & ACE

9 Sep, 12:00 UTC
Forward speed 4 ktCumulative ACE 15.93 10⁴ kt²
001517.53035kt10⁴ kt²1 Sep6 Sep12 Sep18 Sep

Hover or tap either graph to follow the track. The slider controls both graphs. Each line uses its matching colored axis.

Forward speed measures the center’s motion. ACE accumulates squared one-minute winds at 00, 06, 12 and 18 UTC during tropical or subtropical stages at 34 kt or above. Missing observations make ACE partial. Missing measurements remain gaps.

Maximum sustained wind140 kt

161 mph / 259 km/h

Minimum recorded pressure900 hPa

8 Sept 1987 · tropical stage

Recorded track duration17 days

Full archive record, including non-tropical stages if present

Approximate track distance5,380 km

Along the recorded center positions

STORM HISTORY

Track and intensity summary

Holly is listed in the Western Pacific basin for the 1987 season. Its archived track begins on 1 Sept 1987, 06:00 UTC at 11°N, 177°E. The first observation lists sustained winds of 15 knots. These dates describe the available observations, which may include stages before and after the tropical cyclone phase.

The first Category 5 observation appears on 9 Sept 1987, 09:00 UTC. The highest recorded tropical-stage one-minute sustained wind is 140 knots (161 mph / 259 km/h), first recorded on 9 Sept 1987, 12:00 UTC at 18.4°N, 155.8°E. The minimum recorded tropical-stage central pressure is 900 hPa on 8 Sept 1987, 18:00 UTC.

The full record spans 408 hours and approximately 5,380 kilometers along the recorded center positions. The last recorded position is 41°N, 161.8°E on 18 Sept 1987, 06:00 UTC. The final tropical-stage observation is earlier, on 17 Sept 1987, 15:00 UTC.

This summary is calculated from the NOAA IBTrACS archive. Category 5 describes the storm’s peak recorded wind intensity, not its intensity at landfall or the severity of impacts at any location. Landfall times, damage and casualties have not been independently reviewed for this page.

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 · Field documentation

Sources & methodology

Browse all Category 5 storm pages