1999 North Indian cyclone season
Cyclone Unnamed 1999
This unnamed cyclone crossed the Bay of Bengal and reached the Odisha coast near its strongest phase in October 1999. Its track then slowed near the coast before turning south into the bay.
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161 mph
Oct 28, 1999 during the tropical stage
Full archive record, including non-tropical stages if present
Along the recorded center positions
STORM HISTORY
A northwestward approach across the bay
The archive starts near 12°N, 99°E on October 25. The cyclone moved northwest through the Andaman region and across the Bay of Bengal. Its one-minute wind estimates increased from 35 kt near 14°N, 96°E to 100 kt near 18°N, 90°E as it approached India.
Peak strength near Odisha
Maximum one-minute winds reached 140 kt on October 28, equivalent to Category 5 on the Saffir–Simpson scale. The minimum central pressure was 912 hPa. On October 29, the archive places the center over land with winds of 135 kt, close to its offshore peak.
After reaching the Odisha coast, the cyclone weakened and moved little near 20°N, 86°E. It then turned south, with later positions back over the western Bay of Bengal. By the start of November, winds had fallen to depression strength; the recorded track ends on November 3.
Further reading
QUICK ANSWERS
Unnamed in brief
What was Cyclone Unnamed's highest wind speed?
161 mph, the highest one-minute sustained wind in its tropical stage, recorded on Oct 28, 1999, 06:00 PM UTC.
What category was Cyclone Unnamed?
Category 5 at its peak on the Saffir–Simpson one-minute wind scale, first reaching Category 5 on Oct 28, 1999, 03:00 PM UTC. Other agencies classify storms differently.
What was Cyclone Unnamed's lowest pressure?
912 mb, the minimum central pressure recorded during its tropical stage, on Oct 28, 1999, 06:00 PM UTC.
When did Cyclone Unnamed occur?
The archived track runs from Oct 25, 1999, 12:00 AM UTC to Nov 3, 1999, 06:00 AM UTC, with the tropical stage from Oct 25, 1999, 06:00 AM UTC to Oct 31, 1999, 03:00 AM UTC.
Where did Cyclone Unnamed form?
In the North Indian basin, in the 1999 season. Its first archived position is 11.5°N, 99.2°E on Oct 25, 1999, 12:00 AM UTC.
Did Cyclone Unnamed make landfall?
The archive places its center over land at 1 recorded position; the strongest is 155 mph on Oct 29, 1999, 06:00 AM 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