hurricanesmapped

WESTERN PACIFIC · 1997 SEASON

Typhoon Rosie (1997)

Recorded track and intensity · 15 Jul 1997–31 Jul 1997

PEAK INTENSITYCategory 5
THE COMPLETE TRACKOpen in the explorer
ROSIE: complete recorded track, 15 Jul 1997–31 Jul 1997Recorded track from 15 Jul 1997 to 31 Jul 1997. Colors show the recorded wind category. The highlighted position follows the replay controls.ASIAPHILIPPINESTAIWAN15 Jul, 00:00 UTC16 Jul, 00:00 UTC17 Jul, 00:00 UTC18 Jul, 00:00 UTC19 Jul, 00:00 UTC20 Jul, 00:00 UTC21 Jul, 00:00 UTC22 Jul, 00:00 UTC23 Jul, 00:00 UTC24 Jul, 00:00 UTC25 Jul, 00:00 UTC26 Jul, 00:00 UTC27 Jul, 00:00 UTC28 Jul, 00:00 UTC29 Jul, 00:00 UTC30 Jul, 00:00 UTC31 Jul, 00:00 UTCPeak · Category 515 JUL31 JUL

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

Wind speed & pressure

22 Jul, 12:00 UTC
Wind speed 140 ktPressure 935 hPa
0920809701601020kthPa15 Jul20 Jul25 Jul31 Jul

Forward speed & ACE

22 Jul, 12:00 UTC
Forward speed 5 ktCumulative ACE 8.09 10⁴ kt²
0010152030kt10⁴ kt²15 Jul20 Jul25 Jul31 Jul

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 pressure920 hPa

23 Jul 1997 · tropical stage

Recorded track duration16.25 days

Full archive record, including non-tropical stages if present

Approximate track distance4,860 km

Along the recorded center positions

STORM HISTORY

Track and intensity summary

Rosie is listed in the Western Pacific basin for the 1997 season. Its archived track begins on 15 Jul 1997, 00:00 UTC at 7.9°N, 142.4°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 22 Jul 1997, 12:00 UTC. The highest recorded tropical-stage one-minute sustained wind is 140 knots (161 mph / 259 km/h), first recorded on 22 Jul 1997, 12:00 UTC at 18.2°N, 132.1°E. The minimum recorded tropical-stage central pressure is 920 hPa on 23 Jul 1997, 00:00 UTC.

The full record spans 390 hours and approximately 4,860 kilometers along the recorded center positions. The last recorded position is 31.8°N, 136.2°E on 31 Jul 1997, 06:00 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

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