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WESTERN PACIFIC · 1970 SEASON

Typhoon Hope (1970)

Recorded track and intensity · 18 Sept 1970–30 Sept 1970

PEAK INTENSITYCategory 5
THE COMPLETE TRACKOpen in the explorer
HOPE: complete recorded track, 18 Sept 1970–30 Sept 1970Recorded track from 18 Sept 1970 to 30 Sept 1970. Colors show the recorded wind category. The highlighted position follows the replay controls.19 Sep, 00:00 UTC20 Sep, 00:00 UTC21 Sep, 00:00 UTC22 Sep, 00:00 UTC23 Sep, 00:00 UTC24 Sep, 00:00 UTC25 Sep, 00:00 UTC26 Sep, 00:00 UTC27 Sep, 00:00 UTC28 Sep, 00:00 UTC29 Sep, 00:00 UTC30 Sep, 00:00 UTCPeak · Category 518 SEP30 SEP

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

Wind speed & pressure

24 Sep, 00:00 UTC
Wind speed 150 ktPressure 900 hPa
0900809601601020kthPa18 Sep22 Sep26 Sep30 Sep

Forward speed & ACE

24 Sep, 00:00 UTC
Forward speed 13 ktCumulative ACE 11.14 10⁴ kt²
001017.52035kt10⁴ kt²18 Sep22 Sep26 Sep30 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 wind150 kt

173 mph / 278 km/h

Minimum recorded pressure900 hPa

24 Sept 1970 · tropical stage

Recorded track duration12 days

Full archive record, including non-tropical stages if present

Approximate track distance6,520 km

Along the recorded center positions

STORM HISTORY

Track and intensity summary

Hope is listed in the Western Pacific basin for the 1970 season. Its archived track begins on 18 Sept 1970, 12:00 UTC at 13.2°N, 175°E. US-agency wind is not available for this first observation. These dates describe the available observations, which may include stages before and after the tropical cyclone phase.

The first Category 5 observation appears on 23 Sept 1970, 21:00 UTC. The highest recorded tropical-stage one-minute sustained wind is 150 knots (173 mph / 278 km/h), first recorded on 24 Sept 1970, 00:00 UTC at 20.8°N, 146.9°E. The minimum recorded tropical-stage central pressure is 900 hPa on 24 Sept 1970, 00:00 UTC.

The full record spans 288 hours and approximately 6,520 kilometers along the recorded center positions. The last recorded position is 31.4°N, 153.3°E on 30 Sept 1970, 12:00 UTC. The final tropical-stage observation is earlier, on 30 Sept 1970, 09:00 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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