====================== TYPHOON '98 ARCHIVES ====================== GLOBAL TROPICAL CYCLONE TRACKS - DECEMBER 1998 ************************************************************************* NORTHWEST PACIFIC (NWP) - North Pacific Ocean West of Longitude 180 NOTE: The tracking information for Northwest Pacific Basin tropical cyclones is based primarily upon operational warnings from the Joint Typhoon Warning Center of the U.S. Air Force and Navy on the island of Guam. Comparisons were made with track coordinates given in advisories from the meteorological services of Japan (JMA) and the Philippines (PAGASA). In general, whenever the center position differed by more than 40-50 nm from JTWC's, an entry was made in the Remarks column. The 1-min avg MSW were taken from the JTWC advisories while the 10-min avg MSW were obtained from PAGASA's advisories if the storm was in PAGASA's area of responsibility; otherwise, they were gleaned from JMA's advisories or high seas forecasts. In a few cases the 10-min MSW given by PAGASA and JMA did not agree; in those cases I reported the higher value. The estimates of central pressure were obtained from JMA's advisories. ************************************************************************* Storm Name: FAITH (9815/NORMING) Cyclone Number: 24W Basin: NWP Date Time Lat Lon Cent MSW MSW Remarks (GMT) Press 1-min 10-min (mb) (kts) (kts) ------------------------------------------------------------------------- 98 DEC 08 0600 6.1 N 139.2 E 25 98 DEC 08 1200 6.4 N 138.4 E 25 98 DEC 08 1800 7.1 N 137.5 E 25 98 DEC 09 0000 9.1 N 134.8 E 1004 30 30 PAGASA: 10.0 N, 135.0 E 98 DEC 09 0600 10.3 N 133.7 E 1000 30 30 98 DEC 09 1200 10.6 N 132.9 E 998 30 35 PAGASA: 10.3 N, 131.8 E 98 DEC 09 1800 10.9 N 130.7 E 998 35 35 JMA: 10.9 N, 129.5 E 98 DEC 10 0000 11.2 N 128.9 E 990 55 45 98 DEC 10 0600 11.2 N 127.0 E 980 55 55 98 DEC 10 1200 11.9 N 125.5 E 975 65 65 Nearing Philippines 98 DEC 10 1800 12.2 N 123.9 E 980 65 65 Crossing Philippines 98 DEC 11 0000 12.2 N 122.1 E 980 65 55 PAGASA: 12.3 N, 121.5 E 98 DEC 11 0600 11.8 N 120.3 E 975 75 60 98 DEC 11 1200 11.2 N 118.7 E 975 90 65 JMA: 11.5 N, 119.5 E 98 DEC 11 1800 11.1 N 117.6 E 975 90 65 In South China Sea 98 DEC 12 0000 11.2 N 115.8 E 975 90 65 98 DEC 12 0600 10.6 N 114.0 E 975 90 60 JMA: 10.5 N, 114.6 E 98 DEC 12 1200 10.4 N 112.9 E 90 See Note 98 DEC 12 1800 10.4 N 111.3 E 985 90 50 JMA: 10.5 N, 112.6 E 98 DEC 13 0000 10.5 N 111.5 E 985 90 50 JMA: 10.5 N, 112.2 E 98 DEC 13 0600 10.8 N 111.5 E 985 80 50 98 DEC 13 1200 11.1 N 111.0 E 985 80 50 98 DEC 13 1800 11.9 N 110.3 E 990 65 45 98 DEC 14 0000 12.6 N 109.5 E 992 60 45 On Vietnamese Coast 98 DEC 14 0600 13.5 N 108.4 E 1004 55 30 JMA: 13.4 N, 107.7 E 98 DEC 14 1200 14.4 N 107.1 E 35 Inland Note: JMA never classified Faith/Norming as a typhoon--the MSW (10-min) given in their bulletins was 60 kts. PAGASA, however, did classify the storm as a minimal typhoon. The advisory at 12/0000 UTC was the last issued by PAGASA as the storm had moved out of their AOR, so the apparent 5-kt drop in the 10-min MSW in the table above at 12/0600 UTC was due to my using JMA's bulletins as the source of a 10-min MSW value from that point forward. ************************************************************************* Storm Name: GIL (9816) Cyclone Number: 25W Basin: NWP Date Time Lat Lon Cent MSW MSW Remarks (GMT) Press 1-min 10-min (mb) (kts) (kts) ------------------------------------------------------------------------- 98 DEC 09 1200 7.2 N 109.8 E 25 98 DEC 09 1800 7.5 N 108.5 E 30 98 DEC 10 0000 7.6 N 107.0 E 996 30 35 JMA: 7.7 N, 108.1 E 98 DEC 10 0600 7.5 N 106.8 E 996 30 35 JMA: 8.1 N, 107.1 E 98 DEC 10 1200 8.5 N 105.6 E 996 30 35 JMA: 8.0 N, 106.0 E 98 DEC 10 1800 8.7 N 105.3 E 996 30 35 JMA: 8.0 N, 104.9 E 98 DEC 11 0000 8.2 N 105.5 E 1000 35 30 Last JMA Bulletin 98 DEC 11 0600 8.3 N 104.6 E 30 98 DEC 11 1200 8.7 N 103.6 E 30 98 DEC 11 1800 9.0 N 102.9 E 30 98 DEC 12 0000 8.7 N 101.3 E 30 98 DEC 12 0600 8.7 N 100.6 E 30 98 DEC 12 1200 7.7 N 100.0 E 30 Over Malay Peninsula 98 DEC 12 1800 7.8 N 99.9 E 25 " " " 98 DEC 13 0000 8.0 N 99.8 E 20 " " " ************************************************************************* Storm Name: Tropical Depression Cyclone Number: 26W Basin: NWP Date Time Lat Lon Cent MSW MSW Remarks (GMT) Press 1-min 10-min (mb) (kts) (kts) ------------------------------------------------------------------------- 98 DEC 17 1200 12.2 N 122.3 E 25 98 DEC 17 1800 12.2 N 120.7 E 25 98 DEC 18 0000 14.4 N 121.2 E 25 98 DEC 18 0600 15.0 N 121.0 E 98 DEC 18 1200 17.4 N 120.6 E 25 98 DEC 18 1800 17.7 N 119.8 E 25 98 DEC 19 0000 18.3 N 119.5 E 20 Note: JTWC was the only warning center to issue advisories on this system; hence, there are no central pressure nor 10-min MSW estimates. ************************************************************************* Storm Name: Tropical Depression Cyclone Number: 27W Basin: NWP Date Time Lat Lon Cent MSW MSW Remarks (GMT) Press 1-min 10-min (mb) (kts) (kts) ------------------------------------------------------------------------- 98 DEC 19 0600 13.3 N 112.8 E 30 98 DEC 19 1200 13.3 N 112.9 E 30 98 DEC 19 1800 14.1 N 113.0 E 30 98 DEC 20 0000 15.3 N 113.8 E 30 98 DEC 20 0600 15.9 N 114.1 E 30 98 DEC 20 1200 17.2 N 114.3 E 30 98 DEC 20 1800 17.9 N 114.1 E 30 98 DEC 21 0000 18.2 N 115.3 E 25 98 DEC 21 0600 18.9 N 115.7 E 25 98 DEC 21 1200 19.4 N 116.1 E 25 98 DEC 21 1800 19.9 N 116.5 E 25 98 DEC 22 0000 19.4 N 116.7 E 25 Note: JTWC was the only warning center to issue advisories on this system; hence, there are no central pressure nor 10-min MSW estimates. ************************************************************************* ************************************************************************* NORTH INDIAN OCEAN (NIO) - Bay of Bengal and Arabian Sea NOTE: The tracking and intensity information for North Indian Ocean Basin tropical cyclones is based primarily upon operational warnings from the Joint Typhoon Warning Center of the U.S. Air Force and Navy (JTWC) on the island of Guam. For weaker systems not in warning status by JTWC, information gleaned from the twice-daily issuances of the Indian Meteorological Depart- ment (IMD) was used to complete the tracks. These bulletins usually give analyzed center positions at either 0300 or 0600 UTC and 1200 or 1500 UTC. The MSW are based on a 1-min averaging period, which is used by all U.S. civilian and military weather services for tropical cyclone warnings. For synoptic observations in the North Indian region, both 10-min and 3-min average winds are employed, but IMD makes no attempt to modify the Dvorak scale for estimating tropical cyclone intensity; hence, a 1-min avg MSW is implied. In the North Indian basin JTWC usually does not initiate warnings until a system is well-organized and it is likely to attain tropical storm status within 48 hours. Windspeeds are usually not reported in the IMD bulletins. Systems are usually classified as depressions, deep depressions, or cyclonic storms. For depressions I assigned a MSW of 25 kts and for deep depressions 30 kts. If the early stages of a system were referred to as a low-pressure area, I assigned 20 kts. ************************************************************************* Storm Name: Tropical Cyclone Cyclone Number: 08A Basin: NIO Date Time Lat Lon Cent MSW MSW Remarks (GMT) Press 1-min 10-min (mb) (kts) (kts) ------------------------------------------------------------------------- 98 DEC 13 0000 10.3 N 68.3 E 35 98 DEC 13 0600 10.9 N 68.4 E 45 IMD: 11.5 N, 68.5 E 98 DEC 13 1200 11.2 N 67.5 E 45 IMD: 12.0 N, 67.5 E 98 DEC 13 1800 11.5 N 67.1 E 50 98 DEC 14 0600 13.2 N 66.9 E 60 98 DEC 14 1200 13.4 N 66.7 E 60 98 DEC 14 1800 15.3 N 66.5 E 60 98 DEC 15 0600 16.8 N 65.5 E 65 IMD-0300Z: 16.0N, 66.5E 98 DEC 15 1200 17.0 N 65.5 E Position from IMD 98 DEC 15 1800 17.5 N 64.5 E 65 98 DEC 16 0000 17.9 N 63.8 E 45 IMD-0300Z: 17.5N, 65.5E 98 DEC 16 0600 18.0 N 63.6 E 40 98 DEC 16 1200 18.0 N 61.6 E 40 98 DEC 16 1800 18.0 N 59.9 E 40 98 DEC 17 0000 18.3 N 58.7 E 35 98 DEC 17 0600 18.6 N 57.4 E 35 98 DEC 17 1200 19.5 N 56.3 E 30 Inland ************************************************************************* ************************************************************************* AUSTRALIAN REGION (AUS) - From Longitude 90E Eastward to Longitude 160E NOTE: The tracking information presented below was obtained from operational warnings issued by the Tropical Cyclone Warning Centres at Perth, Western Australia; Darwin, Northern Territory; and Brisbane, Queensland. JTWC warnings were utilized for making comparisons and for supplying information for times when the Australian warnings were unavailable. The 10-min MSW values were obtained from the Australian warnings while the 1-min MSW values were assigned by JTWC. The tropical cyclone warnings from Perth report the analyzed cyclone positions at 0400, 1000, 1600, and 2200 UTC instead of the more familiar 0000, 0600, 1200, and 1800 UTC utilized by most TC warning agencies. I have made no attempt to interpolate the coordinates to standard synoptic hours as I did last season. ************************************************************************* Storm Name: BILLY Cyclone Number: 05S Basin: AUS Date Time Lat Lon Cent MSW MSW Remarks (GMT) Press 1-min 10-min (mb) (kts) (kts) ------------------------------------------------------------------------- 98 DEC 01 1800 14.0 S 120.0 E 1005 15 98 DEC 02 0400 16.0 S 120.0 E 1004 98 DEC 02 1000 16.2 S 119.6 E 1000 98 DEC 02 1600 16.5 S 119.2 E 998 30 30 98 DEC 02 2200 16.9 S 119.1 E 997 35 30 98 DEC 03 0400 17.0 S 118.0 E 997 35 30 98 DEC 03 1000 17.2 S 117.7 E 995 35 98 DEC 03 1600 17.4 S 117.3 E 990 45 50 98 DEC 03 2200 17.9 S 117.2 E 984 50 98 DEC 04 0400 18.4 S 116.7 E 975 65 60 98 DEC 04 1000 18.5 S 116.5 E 975 65 60 98 DEC 04 1600 18.6 S 116.4 E 975 60 60 98 DEC 04 2200 18.9 S 116.1 E 990 60 45 98 DEC 05 0400 19.4 S 115.3 E 995 60 40 98 DEC 05 1200 20.1 S 115.2 E 45 JTWC Warning 98 DEC 05 1800 20.3 S 115.0 E 45 " " 98 DEC 06 0000 20.8 S 114.9 E 40 " " 98 DEC 06 1200 21.5 S 115.0 E 35 " " 98 DEC 06 1800 22.6 S 115.6 E 25 " " ************************************************************************* Storm Name: THELMA Cyclone Number: 06S Basin: AUS Date Time Lat Lon Cent MSW MSW Remarks (GMT) Press 1-min 10-min (mb) (kts) (kts) ------------------------------------------------------------------------- 98 DEC 03 1800 10.0 S 135.0 E 1005 15 98 DEC 04 1800 9.0 S 134.0 E 1005 25 98 DEC 05 0600 9.3 S 132.0 E 1000 25 30 JTWC: 9.2 S, 130.5 E 98 DEC 05 1200 9.3 S 131.3 E 999 30 98 DEC 05 1800 8.8 S 131.6 E 997 25 30 98 DEC 06 0000 9.0 S 131.5 E 996 30 98 DEC 06 0600 8.9 S 131.0 E 993 45 45 JTWC: 9.6 S, 130.9 E 98 DEC 06 1200 8.9 S 130.8 E 990 45 98 DEC 06 1800 8.9 S 130.7 E 990 55 45 98 DEC 07 0000 9.1 S 131.1 E 985 50 98 DEC 07 0600 10.0 S 131.1 E 970 90 70 98 DEC 07 1200 10.3 S 130.9 E 955 90 98 DEC 07 1800 10.8 S 130.3 E 950 115 90 98 DEC 08 0000 10.9 S 130.0 E 950 90 98 DEC 08 0600 11.5 S 129.6 E 935 120 115 98 DEC 08 1200 11.6 S 129.2 E 925 120 98 DEC 08 1800 11.7 S 128.7 E 925 135 120 98 DEC 09 0000 11.8 S 128.4 E 935 110 98 DEC 09 0600 12.0 S 128.0 E 935 130 110 98 DEC 09 1200 12.4 S 127.4 E 935 110 98 DEC 09 1800 12.7 S 126.9 E 935 130 110 98 DEC 10 0000 13.1 S 126.5 E 925 120 98 DEC 10 0600 13.5 S 125.9 E 925 125 120 98 DEC 10 1200 13.8 S 125.6 E 925 120 98 DEC 10 1900 14.5 S 125.3 E 925 120 120 98 DEC 10 2200 14.5 S 125.3 E 925 120 98 DEC 11 0400 15.2 S 124.9 E 960 90 75 JTWC-06Z: 15.7S, 124.9E 98 DEC 11 1000 16.3 S 125.0 E 985 50 98 DEC 11 1600 16.8 S 124.6 E 995 40 98 DEC 11 2200 17.2 S 124.5 E 998 98 DEC 12 0500 17.7 S 124.5 E 98 DEC 12 0700 18.0 S 124.0 E 997 35 98 DEC 12 1800 18.6 S 123.9 E 40 JTWC Warning 98 DEC 13 0100 18.6 S 122.6 E 997 98 DEC 13 0400 18.5 S 122.4 E 997 35 98 DEC 13 1000 18.9 S 121.8 E 996 30 98 DEC 13 1600 19.0 S 121.4 E 995 35 98 DEC 13 2200 19.3 S 121.1 E 995 98 DEC 14 0400 19.4 S 120.3 E 995 35 30 98 DEC 14 1000 19.6 S 119.7 E 995 98 DEC 14 1600 20.0 S 119.4 E 995 35 30 98 DEC 15 0600 21.0 S 119.4 E 30 JTWC Warning ************************************************************************* Storm Name: Tropical LOW Cyclone Number: None Basin: AUS Date Time Lat Lon Cent MSW MSW Remarks (GMT) Press 1-min 10-min (mb) (kts) (kts) ------------------------------------------------------------------------- 98 DEC 07 1000 11.0 S 95.0 E 1002 25 98 DEC 07 1600 11.0 S 95.0 E 1002 25 98 DEC 07 2200 11.0 S 95.0 E 1000 25 98 DEC 08 0400 11.0 S 95.0 E 1002 25 98 DEC 09 0400 11.0 S 95.0 E 1004 98 DEC 10 0400 12.2 S 95.0 E 1004 98 DEC 11 0300 11.6 S 95.4 E 1006 98 DEC 12 0400 10.0 S 95.0 E 1007 98 DEC 13 0400 10.0 S 97.0 E 1006 ************************************************************************* Storm Name: CATHY Cyclone Number: 10S Basin: AUS Date Time Lat Lon Cent MSW MSW Remarks (GMT) Press 1-min 10-min (mb) (kts) (kts) ------------------------------------------------------------------------- 98 DEC 16 0400 9.0 S 102.0 E 1005 98 DEC 17 0400 10.0 S 102.0 E 1005 98 DEC 19 0100 9.8 S 102.2 E 1006 98 DEC 20 0100 10.5 S 101.0 E 1005 98 DEC 22 0700 10.9 S 99.6 E 98 DEC 22 2200 11.3 S 99.6 E 98 DEC 23 0400 11.6 S 100.4 E 98 DEC 24 1000 15.8 S 99.7 E 1000 30 98 DEC 24 1600 16.6 S 99.6 E 1000 30 98 DEC 24 2200 16.5 S 99.4 E 1000 35 30 Relocation 98 DEC 25 1000 16.8 S 97.6 E 990 35 45 98 DEC 25 1600 17.8 S 97.5 E 990 45 98 DEC 25 2200 18.3 S 97.0 E 995 45 98 DEC 26 0100 16.6 S 96.4 E 995 35 45 Relocation 98 DEC 26 0400 16.7 S 95.9 E 995 45 98 DEC 26 1000 16.6 S 95.0 E 995 40 45 98 DEC 26 1600 16.6 S 94.5 E 995 40 98 DEC 26 2200 16.5 S 93.9 E 995 40 40 98 DEC 27 0400 16.3 S 93.5 E 98 DEC 27 1000 16.2 S 93.2 E 999 35 30 98 DEC 28 0000 15.8 S 91.0 E 25 JTWC Warning 98 DEC 29 0000 15.0 S 88.0 E 98 DEC 30 0200 13.5 S 84.5 E ************************************************************************* Storm Name: Tropical LOW Cyclone Number: None Basin: AUS Date Time Lat Lon Cent MSW MSW Remarks (GMT) Press 1-min 10-min (mb) (kts) (kts) ------------------------------------------------------------------------- 98 DEC 26 0600 14.0 S 140.0 E 1007 15 JTWC Outlook 98 DEC 27 0600 15.0 S 136.0 E 1006 20 " " 98 DEC 28 0600 14.0 S 135.0 E 1004 25 " " 98 DEC 29 0600 17.0 S 139.0 E 1002 " " 98 DEC 30 2100 15.3 S 138.3 E 996 30 98 DEC 31 0100 16.5 S 138.5 E 996 30 Moving Inland 99 JAN 02 0600 16.0 S 140.0 E Dissipated ************************************************************************* ************************************************************************* SOUTHWEST PACIFIC (SWP) - South Pacific Ocean East of Longitude 160E NOTE: The tracking and intensity information for Southwest Pacific Basin tropical cyclones was taken from real-time operational warnings issued by the Nadi TCWC, Fiji for positions north of 25S and from the Wellington, New Zealand office for positions south of 25S. Warnings from JTWC (west of 180) and from NPMOC (east of 180) were utilized for the purpose of making comparisons and for supplying information for times when the Nadi or Wellington warnings were unavailable. The 10-min avg MSW values were taken from the Fiji or New Zealand warnings while the 1-min avg MSW values were obtained from the JTWC or NPMOC warnings. ************************************************************************* Storm Name: Tropical Depression Cyclone Number: 07P Basin: SWP Date Time Lat Lon Cent MSW MSW Remarks (GMT) Press 1-min 10-min (mb) (kts) (kts) ------------------------------------------------------------------------- 98 DEC 14 2100 19.5 S 159.7 E 1002 98 DEC 15 0000 20.4 S 159.5 E 1001 35 See Note 98 DEC 15 0600 20.9 S 159.9 E 1002 35 35 98 DEC 15 1200 23.0 S 161.5 E 999 40 98 DEC 15 1800 23.8 S 162.0 E 999 35 35 98 DEC 16 0000 24.5 S 163.5 E 999 35 98 DEC 16 0600 25.7 S 164.2 E 999 35 35 98 DEC 16 1700 29.0 S 164.0 E 999 30 35 JTWC: 27.9 S, 165.3 E 98 DEC 17 0500 33.5 S 165.0 E 996 40 Likely Extratropical Note: In WMO Region 5 (Australia and the South Pacific), the regional definition of a tropical cyclone requires that gales more or less surround the center. Hence, many depressions will have gale-force winds in one or two quadrants but will not be considered as tropical cyclones. ************************************************************************* Storm Name: Trop. Depression 02F Cyclone Number: 08P Basin: SWP Date Time Lat Lon Cent MSW MSW Remarks (GMT) Press 1-min 10-min (mb) (kts) (kts) ------------------------------------------------------------------------- 98 DEC 22 0000 22.0 S 152.0 W 1004 35 35 See Note 98 DEC 22 0600 22.7 S 151.7 W 1004 35 98 DEC 22 1200 23.5 S 151.6 W 997 35 35 98 DEC 22 1800 24.7 S 150.7 W 997 35 98 DEC 23 0000 26.9 S 148.9 W 45 NPMOC Warning 98 DEC 23 1200 32.1 S 144.8 W 50 " " 98 DEC 24 0000 39.9 S 134.0 W 30 Becoming Extratropical Note: In WMO Region 5 (Australia and the South Pacific), the regional definition of a tropical cyclone requires that gales more or less surround the center. Hence, many depressions will have gale-force winds in one or two quadrants but will not be considered as tropical cyclones. ************************************************************************* Storm Name: CORA Cyclone Number: 09P Basin: SWP Date Time Lat Lon Cent MSW MSW Remarks (GMT) Press 1-min 10-min (mb) (kts) (kts) ------------------------------------------------------------------------- 98 DEC 21 0600 13.0 S 173.0 W 1002 25 98 DEC 22 0000 14.1 S 175.8 W 999 25 98 DEC 22 0600 14.1 S 175.7 W 999 25 98 DEC 22 1200 13.7 S 175.7 W 999 25 98 DEC 22 1800 14.0 S 176.7 W 999 25 98 DEC 23 0000 14.3 S 177.1 W 999 25 98 DEC 23 0600 14.6 S 177.8 W 998 30 98 DEC 23 1200 15.0 S 178.0 W 998 30 98 DEC 23 1800 14.9 S 178.8 W 998 40 30 98 DEC 24 0000 14.8 S 178.6 W 998 30 98 DEC 24 0600 15.4 S 178.5 W 992 60 35 98 DEC 24 1200 15.8 S 178.2 W 987 45 98 DEC 24 1800 16.8 S 177.9 W 980 75 55 98 DEC 25 0000 17.0 S 177.0 W 980 55 98 DEC 25 0600 18.1 S 176.6 W 980 75 55 98 DEC 25 0800 18.5 S 176.5 W 975 60 98 DEC 25 1200 19.1 S 176.5 W 970 65 98 DEC 25 1800 20.0 S 175.9 W 960 90 75 98 DEC 26 0000 20.7 S 175.4 W 960 75 98 DEC 26 0600 21.4 S 174.3 W 960 90 75 98 DEC 26 1200 22.0 S 172.8 W 965 70 98 DEC 26 1800 22.9 S 171.1 W 965 85 70 98 DEC 27 0000 23.8 S 169.2 W 970 65 98 DEC 27 0600 24.6 S 166.5 W 970 85 65 98 DEC 27 1200 25.1 S 163.1 W 970 65 Entered Wellington AOR 98 DEC 27 1800 26.2 S 160.1 W 970 75 65 98 DEC 28 0000 27.3 S 157.7 W 980 55 98 DEC 28 0500 27.5 S 156.0 W 983 35 50 Extratropical 98 DEC 28 1100 29.0 S 154.0 W 985 50 " 98 DEC 28 1700 31.0 S 150.0 W 989 50 " 98 DEC 28 2300 33.0 S 149.0 W 990 50 " ************************************************************************* ************************************************************************* *************************************************************************