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Best track · IBTrACS
ArchivedPeak category 4
Cyclone Thelma (1998)
Track & history
Peak wind
155 mph / 250 km/h
Min pressure
920 mb
Dates
–
Landfall
Port Hedland
Storm history
Thelma formed in the Southern Hemisphere in December 1998 and peaked as a Category 4 cyclone with maximum sustained winds of 155 mph (250 km/h) and a minimum pressure of 920 mb. It made landfall near Port Hedland, Australia. The system was tracked for 14 days.
- 1998-12-11 00:00 UTCLandfall · 130 mph / 215 km/h
- 1998-12-14 21:00 UTCLandfall near Port Hedland, Australia · 40 mph / 65 km/h
Track data
Download CSV| Time UTC | Position | Strength | Wind | Pressure |
|---|---|---|---|---|
| 1998-12-01 00:00 | 12.0°S 138.0°E | TD | 15 mph / 30 km/h | 1007 mb |
| 1998-12-01 06:00 | 11.8°S 137.6°E | TD | 15 mph / 30 km/h | 1004 mb |
| 1998-12-01 12:00 | 11.6°S 137.2°E | TD | 15 mph / 30 km/h | 1007 mb |
| 1998-12-01 18:00 | 11.4°S 136.8°E | TD | 15 mph / 30 km/h | 1005 mb |
| 1998-12-02 00:00 | 11.2°S 136.4°E | TD | 15 mph / 30 km/h | 1007 mb |
| 1998-12-02 06:00 | 11.1°S 136.1°E | TD | 15 mph / 30 km/h | 1005 mb |
| 1998-12-02 12:00 | 10.9°S 135.9°E | TD | 15 mph / 30 km/h | 1007 mb |
| 1998-12-02 18:00 | 10.7°S 135.7°E | TD | 15 mph / 30 km/h | 1005 mb |
Show all 58 points
| 1998-12-03 00:00 | 10.4°S 135.4°E | TD | 15 mph / 30 km/h | 1007 mb |
| 1998-12-03 06:00 | 10.3°S 135.0°E | TD | 15 mph / 30 km/h | 1004 mb |
| 1998-12-03 12:00 | 10.2°S 134.7°E | TD | 15 mph / 30 km/h | 1006 mb |
| 1998-12-03 18:00 | 10.2°S 134.4°E | TD | 15 mph / 30 km/h | 1004 mb |
| 1998-12-04 00:00 | 9.9°S 134.0°E | TD | 30 mph / 45 km/h | 1006 mb |
| 1998-12-04 06:00 | 9.7°S 133.5°E | TD | 30 mph / 45 km/h | 1004 mb |
| 1998-12-04 12:00 | 9.5°S 133.0°E | TD | 30 mph / 45 km/h | 1004 mb |
| 1998-12-04 18:00 | 9.5°S 132.6°E | TD | 30 mph / 45 km/h | 1002 mb |
| 1998-12-05 00:00 | 9.4°S 132.2°E | TD | 30 mph / 45 km/h | 1004 mb |
| 1998-12-05 06:00 | 9.3°S 131.9°E | TD | 30 mph / 45 km/h | 1000 mb |
| 1998-12-05 12:00 | 9.2°S 131.4°E | TD | 30 mph / 45 km/h | 1000 mb |
| 1998-12-05 18:00 | 9.2°S 131.3°E | TD | 30 mph / 45 km/h | 996 mb |
| 1998-12-06 00:00 | 9.3°S 131.3°E | TD | 35 mph / 55 km/h | 994 mb |
| 1998-12-06 06:00 | 9.3°S 131.3°E | TS | 50 mph / 85 km/h | 990 mb |
| 1998-12-06 12:00 | 9.3°S 131.2°E | TS | 50 mph / 85 km/h | 985 mb |
| 1998-12-06 18:00 | 9.4°S 131.2°E | TS | 65 mph / 100 km/h | 980 mb |
| 1998-12-07 00:00 | 9.5°S 131.2°E | TS | 70 mph / 110 km/h | 975 mb |
| 1998-12-07 06:00 | 9.9°S 131.2°E | C2 | 105 mph / 165 km/h | 970 mb |
| 1998-12-07 12:00 | 10.3°S 130.9°E | C3 | 115 mph / 185 km/h | 955 mb |
| 1998-12-07 18:00 | 10.8°S 130.5°E | C4 | 130 mph / 215 km/h | 945 mb |
| 1998-12-08 00:00 | 11.0°S 130.0°E | C4 | 145 mph / 230 km/h | 940 mb |
| 1998-12-08 06:00 | 11.4°S 129.6°E | C4 | 140 mph / 220 km/h | 930 mb |
| 1998-12-08 12:00 | 11.6°S 129.2°E | C4 | 155 mph / 250 km/h | 920 mb |
| 1998-12-08 18:00 | 11.7°S 128.7°E | C4 | 155 mph / 250 km/h | 920 mb |
| 1998-12-09 00:00 | 11.8°S 128.4°E | C4 | 150 mph / 240 km/h | 920 mb |
| 1998-12-09 06:00 | 12.2°S 128.0°E | C4 | 150 mph / 240 km/h | 925 mb |
| 1998-12-09 12:00 | 12.4°S 127.4°E | C4 | 150 mph / 240 km/h | 925 mb |
| 1998-12-09 18:00 | 12.8°S 126.9°E | C4 | 150 mph / 240 km/h | 930 mb |
| 1998-12-10 00:00 | 13.0°S 126.4°E | C4 | 150 mph / 240 km/h | 930 mb |
| 1998-12-10 06:00 | 13.4°S 126.0°E | C4 | 145 mph / 230 km/h | 935 mb |
| 1998-12-10 12:00 | 13.8°S 125.6°E | C4 | 145 mph / 230 km/h | 935 mb |
| 1998-12-10 18:00 | 14.4°S 125.2°E | C4 | 140 mph / 220 km/h | 950 mb |
| 1998-12-11 00:00 | 15.1°S 125.1°E | C4 | 130 mph / 215 km/h | 970 mb |
| 1998-12-11 06:00 | 15.8°S 125.0°E | C2 | 105 mph / 165 km/h | 980 mb |
| 1998-12-11 12:00 | 16.3°S 125.0°E | C1 | 75 mph / 120 km/h | 990 mb |
| 1998-12-11 18:00 | 16.9°S 124.8°E | TS | 50 mph / 85 km/h | 996 mb |
| 1998-12-12 00:00 | 17.3°S 124.7°E | TS | 45 mph / 75 km/h | — |
| 1998-12-12 06:00 | 17.8°S 124.4°E | TS | 40 mph / 65 km/h | — |
| 1998-12-12 12:00 | 18.1°S 124.1°E | TS | 40 mph / 65 km/h | — |
| 1998-12-12 18:00 | 18.5°S 123.6°E | TS | 45 mph / 75 km/h | — |
| 1998-12-13 00:00 | 18.8°S 122.9°E | TS | 45 mph / 75 km/h | — |
| 1998-12-13 06:00 | 18.9°S 122.4°E | TS | 40 mph / 65 km/h | — |
| 1998-12-13 12:00 | 19.0°S 121.8°E | TS | 40 mph / 65 km/h | — |
| 1998-12-13 18:00 | 19.2°S 121.4°E | TS | 40 mph / 65 km/h | — |
| 1998-12-14 00:00 | 19.4°S 121.0°E | TS | 40 mph / 65 km/h | — |
| 1998-12-14 06:00 | 19.6°S 120.4°E | TS | 40 mph / 65 km/h | — |
| 1998-12-14 12:00 | 19.8°S 119.8°E | TS | 40 mph / 65 km/h | — |
| 1998-12-14 18:00 | 20.0°S 119.6°E | TS | 40 mph / 65 km/h | — |
| 1998-12-15 00:00 | 20.4°S 119.5°E | TS | 40 mph / 65 km/h | — |
| 1998-12-15 06:00 | 21.0°S 119.4°E | TD | 35 mph / 55 km/h | — |
Cyclone Thelma 1998 FAQ
Did Cyclone Thelma 1998 make landfall?
Yes. Thelma made landfall near Port Hedland, Australia on Dec 14 1998, with sustained winds of 40 mph (65 km/h) at the first landfall.
How strong did Thelma get in 1998?
Thelma peaked as a Category 4 cyclone with maximum sustained winds of 155 mph (250 km/h) and a minimum central pressure of 920 mb.
When did Thelma form and dissipate?
Thelma was first tracked on Dec 1 1998 and last tracked on Dec 15 1998, about 14 days in all.