[Index]
Monthly Global Tropical Cyclone Tracks December 1997
[Summaries and Track Data] [Prepared by Gary Padgett]
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Cyclones
[Index] |
Monthly Global Tropical Cyclone Tracks December 1997 [Summaries and Track Data] [Prepared by Gary Padgett] |
GLOBAL TROPICAL CYCLONE TRACKS - DECEMBER 1997
NORTHEAST PACIFIC (NEP) - North Pacific Ocean East of Longitude 180
and
NORTHWEST PACIFIC (NWP) - North Pacific Ocean West of Longitude 180
NOTE: The tracking and intensity information for Northeast Pacific
Basin tropical cyclones is based upon operational advisories
from the Tropical Prediction Center/National Hurricane Center
in Miami, Florida, for systems east of Longitude 140W; and
from the Central Pacific Hurricane Center, Honolulu, Hawaii,
for systems west of Longitude 140W. 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.
The tracking and intensity information for Northwest Pacific
Basin tropical cyclones is based upon operational warnings from
the Joint Typhoon Warning Center of the U.S. Air Force and Navy
on the island of Guam. 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.
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Storm Name: PAKA Cyclone Number: 05-C Basin: NEP/NWP
Date Time Lat Lon Cen Pres MSW Remarks
(GMT) (mb) (kts)
-------------------------------------------------------------------------
97 DEC 02 1200 7.2 N 166.4 W 1000 30
97 DEC 02 1800 7.4 N 166.7 W 1007 35
97 DEC 03 0000 7.4 N 167.3 W 1005 45
97 DEC 03 0600 8.0 N 167.4 W 996 45
97 DEC 03 1200 8.3 N 167.6 W 996 45
97 DEC 03 1800 8.5 N 168.6 W 996 45
97 DEC 04 0000 8.5 N 168.6 W 45
97 DEC 04 0600 8.7 N 169.3 W 996 45
97 DEC 04 1200 9.2 N 170.3 W 996 45
97 DEC 04 1800 8.9 N 170.9 W 992 55
97 DEC 05 0000 9.2 N 172.1 W 50
97 DEC 05 0600 9.1 N 172.7 W 995 50
97 DEC 05 1200 9.4 N 173.0 W 1000 45
97 DEC 05 1800 9.7 N 173.6 W 1000 45
97 DEC 06 0000 9.3 N 176.4 W 1000 40
97 DEC 06 0600 9.0 N 178.0 W 1000 35
97 DEC 06 1200 9.0 N 179.0 W 1000 35
97 DEC 06 1800 8.9 N 179.5 W 35
97 DEC 07 0000 8.4 N 180.0 E 40 Entered NWP basin
97 DEC 07 0600 8.1 N 179.3 E 996 40 Japan: 35kts/9.6N, 179.8W
97 DEC 07 1200 8.3 N 178.5 E 994 45 Japan: 35kts/9.4N, 179.3W
97 DEC 07 1800 8.9 N 177.8 E 55 Japan: 35kts/9.4N, 179.8W
97 DEC 08 0000 8.7 N 177.4 E 50 Japan: 35kts/8.5N, 178.0E
97 DEC 08 0600 7.4 N 177.2 E 45
97 DEC 08 1200 7.4 N 176.4 E 45
97 DEC 08 1800 7.4 N 175.4 E 992 45
97 DEC 09 0000 6.6 N 174.6 E 990 45 Japan: 45kts/7.2N, 175.0E
97 DEC 09 0600 6.6 N 174.1 E 45
97 DEC 09 1200 6.6 N 173.9 E 985 45
97 DEC 09 1800 6.8 N 172.7 E 45
97 DEC 10 0000 6.9 N 171.9 E 50
97 DEC 10 0600 6.9 N 171.1 E 55
97 DEC 10 1200 6.9 N 170.8 E 980 55
97 DEC 10 1800 6.9 N 169.9 E 975 65
97 DEC 11 0000 6.7 N 168.9 E 970 80 Japan: 65 kts (10-min)
97 DEC 11 0600 6.7 N 168.5 E 90 Japan: 65 kts (10-min)
97 DEC 11 1200 6.9 N 167.9 E 965 100 Japan: 70 kts (10-min)
97 DEC 11 1800 7.4 N 166.9 E 105 Japan: 70kts/7.4N, 167.4E
97 DEC 12 0000 7.6 N 166.5 E 960 105 Japan: 70 kts (10-min)
97 DEC 12 0600 7.8 N 165.8 E 115 " "
97 DEC 12 1200 8.0 N 165.1 E 115 " "
97 DEC 12 1800 8.4 N 164.1 E 950 115 Japan: 80 kts (10-min)
97 DEC 13 0000 8.8 N 162.8 E 105 Japan: 80 kts (10-min)
97 DEC 13 0600 8.9 N 161.8 E 955 95 Japan: 75 kts (10-min)
97 DEC 13 1200 9.5 N 160.5 E 105 " "
97 DEC 13 1800 10.1 N 159.2 E 115 " "
97 DEC 14 0000 10.4 N 157.4 E 950 115 Japan: 80 kts (10-min)
97 DEC 14 0600 10.7 N 155.8 E 115 " "
97 DEC 14 1200 11.4 N 154.0 E 120 " "
97 DEC 14 1800 12.0 N 152.5 E 930 120 Japan: 95 kts (10-min)
97 DEC 15 0000 12.4 N 150.8 E 140 " "
97 DEC 15 0600 12.6 N 149.5 E 140 " "
97 DEC 15 1200 13.0 N 148.3 E 925 140 " "
97 DEC 15 1800 13.2 N 147.1 E 135 " "
97 DEC 16 0000 13.5 N 146.2 E 120 " "
97 DEC 16 0600 13.7 N 145.3 E 935 125 Japan: 90 kts (10-min)
97 DEC 16 1200 13.7 N 144.6 E 940 125 " "
97 DEC 16 1800 13.7 N 143.9 E 125 " "
97 DEC 17 0000 13.7 N 143.0 E 120 " "
97 DEC 17 0600 13.7 N 142.1 E 935 125 " "
97 DEC 17 1200 13.7 N 141.4 E 925 145 Japan: 95 kts (10-min)
97 DEC 17 1800 14.0 N 140.7 E 920 155 Japan: 100 kts (10-min)
97 DEC 18 0000 14.3 N 139.7 E 160 " "
97 DEC 18 0600 14.6 N 138.9 E 135 " "
97 DEC 18 1200 14.9 N 138.2 E 135 " "
97 DEC 18 1800 15.2 N 137.2 E 130 " "
97 DEC 19 0000 15.3 N 136.3 E 925 115 Japan: 95 kts (10-min)
97 DEC 19 0600 15.5 N 135.4 E 930 115 Japan: 90 kts (10-min)
97 DEC 19 1200 16.1 N 135.1 E 115 " "
97 DEC 19 1800 16.5 N 134.4 E 115 " "
97 DEC 20 0000 16.7 N 133.6 E 940 110 Japan: 85 kts (10-min)
97 DEC 20 0600 17.1 N 133.4 E 945 95
97 DEC 20 1200 17.8 N 132.9 E 950 85
97 DEC 20 1800 18.1 N 132.3 E 960 70
97 DEC 21 0000 18.3 N 132.3 E 970 60 Japan: 65 kts (10-min)
97 DEC 21 0600 18.0 N 132.5 E 980 50
97 DEC 21 1200 17.4 N 132.2 E 985 35 Japan: 50kts/18.1N,132.2E
97 DEC 21 1800 17.5 N 132.0 E 992 30 Japan: 45kts/18.1N,131.4E
97 DEC 22 0000 18.0 N 131.0 E 1004 30 {Track after 21/1800 UTC
97 DEC 22 0600 18.0 N 131.0 E from Japanese high seas
97 DEC 22 1200 19.0 N 132.0 E 1006 forecasts. No wind speed
97 DEC 23 0000 20.0 N 131.0 E 1010 mentioned.}
NOTE: The MSW given in the table above are based on the 1-min average
reported by JTWC. Values reported by Japan in the Remarks column
are based on 10-min average winds. The estimated central
pressures reported above are based on CPHC's advisories while
Paka was east of the dateline, but are taken from the Japanese
high seas forecasts after the storm moved west of the dateline.
It should be pointed out that during Paka's more intense stages,
Japan's reported 10-min average winds are considerably lower than
the standard 13% rule-of-thumb reduction from 1-min to 10-min
winds would call for. A 1-min wind of 160 kts is equivalent to
about 140 kts 10-min average wind.
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AUSTRALIAN REGION (AUS) - From Longitude 90E Eastward to Longitude 160E
NOTE: The tracks presented below are based on operational warnings
from the Australian Tropical Cyclone Warning Centres at
Darwin, Northern Territory (for Tropical Cyclone Sid) and
Perth, Western Australia (for Tropical Cyclone Selwyn).
The MSW in the tables below are based on a 10-min averaging
period. To convert these to equivalent 1-min average winds,
multiply by 1.15. However, the wind speed estimates by
JTWC mentioned in the Remarks column, are 1-min average
sustained winds. To convert these to equivalent 10-min
average winds, multiply by 0.87.
JTWC = Joint Typhoon Warning Center, Guam, Marianas Islands
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Storm Name: SELWYN Cyclone Number: 09-S Basin: AUS
Date Time Lat Lon Cen Pres MSW Remarks
(GMT) (mb) (kts)
-------------------------------------------------------------------------
97 DEC 26 1800 13.5 S 111.9 E 1000 30
97 DEC 27 0000 14.1 S 111.2 E 998 30
97 DEC 27 0600 15.0 S 110.0 E 995 40
97 DEC 27 1200 15.0 S 109.8 E 986 45 JTWC: 65 kts (1-min)
97 DEC 27 1800 15.2 S 109.4 E 980 50
97 DEC 28 0000 15.5 S 109.0 E 980 50
97 DEC 28 0600 15.9 S 108.3 E 50
97 DEC 28 1200 16.3 S 107.7 E 966 70 JTWC: 60 kts (1-min)
97 DEC 28 1800 16.7 S 107.2 E 970 70
97 DEC 29 0000 17.3 S 106.6 E 975 65
97 DEC 29 0600 17.5 S 105.7 E 975 60
97 DEC 29 1200 17.7 S 105.0 E 970 65 JTWC: 50kts/18.1S,104.1E
97 DEC 29 1800 17.5 S 104.2 E 976 55
97 DEC 30 0000 17.2 S 103.1 E 982 50
97 DEC 30 0600 17.1 S 101.9 E 45
97 DEC 30 1200 17.0 S 101.0 E 990 40
97 DEC 30 1800 16.6 S 100.5 E 990 40
97 DEC 31 0000 16.2 S 99.7 E 994 35 Last warning from Perth
97 DEC 31 1200 16.3 S 98.4 E 35 Based on JTWC warning
98 JAN 01 0000 16.3 S 96.2 E 30 Based on JTWC warning
98 JAN 01 1800 17.2 S 93.5 E 998 30
98 JAN 02 0000 17.4 S 92.8 E 998 25
NOTE: Track based on operational warnings issued by the Perth TCWC.
Warnings were issued at 0400, 1000, 1600, and 2200 UTC. Positions
above have been interpolated to standard synoptic hours. MSW are
10-min average winds.
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Storm Name: SID Cyclone Number: 08-S Basin: AUS
Date Time Lat Lon Cen Pres MSW Remarks
(GMT) (mb) (kts)
-------------------------------------------------------------------------
97 DEC 26 0000 11.0 S 131.8 E 1000 30
97 DEC 26 0600 11.0 S 132.6 E 992 40
97 DEC 26 1200 11.2 S 133.3 E 990 40
97 DEC 26 1800 11.5 S 134.8 E 990 40
97 DEC 27 0000 12.0 S 135.8 E 990 40
97 DEC 27 0600 12.4 S 136.8 E 988 40
97 DEC 27 1200 13.2 S 137.4 E 988 45
97 DEC 27 1800 14.2 S 137.4 E 988 45
97 DEC 28 0000 14.4 S 138.4 E 985 50 JTWC: 40kts/15.5S,137.9E
97 DEC 28 0600 15.9 S 138.7 E 40
97 DEC 28 1200 16.6 S 138.8 E 30 JTWC: 35kts/18.1S,138.0E
NOTE: Track based on operational warnings issued by the Darwin TCWC.
MSW are 10-min average winds.
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SOUTHWEST PACIFIC (SWP) - South Pacific Ocean East of Longitude 160E
NOTE: The track for Tropical Cyclone Pam is a preliminary "best
track" based on a post-storm analysis by the Fiji Tropical
Cyclone Warning Centre at Nadi. It was sent to me by
Mark Kersemakers of the Fiji Meteorological Service.
The MSW in the tables below are based on a 10-min averaging
period. To convert these to equivalent 1-min average winds,
multiply by 1.15. However, the wind speed estimates by
JTWC or NPMOC, mentioned in the Remarks column, are 1-min
average sustained winds. To convert these to equivalent
10-min average winds, multiply by 0.87.
JTWC = Joint Typhoon Warning Center, Guam, Marianas Islands
NPMOC = Naval Pacific Meteorology and Oceanography Center,
located at Pearl Harbor, on the island of Oahu,
Hawaii
*************************************************************************
Storm Name: PAM Cyclone Number: 07-P Basin: SWP
Date Time Lat Lon Cen Pres MSW Remarks
(GMT) (mb) (kts)
-------------------------------------------------------------------------
97 DEC 05 0000 9.0 S 166.0 W 998 25
97 DEC 05 0600 9.3 S 166.2 W 998 25
97 DEC 05 1200 9.8 S 166.3 W 998 25
97 DEC 05 1800 10.3 S 165.0 W 997 30 NPMOC: 10.5 S, 163.4 W
97 DEC 06 0000 11.0 S 163.2 W 997 30
97 DEC 06 0600 11.5 S 162.7 W 995 35
97 DEC 06 1200 11.8 S 162.5 W 995 35
97 DEC 06 1800 12.7 S 163.1 W 990 40 NPMOC: 65 kts (1-min)
97 DEC 07 0000 14.1 S 163.1 W 985 50
97 DEC 07 0600 14.7 S 163.1 W 985 50 NPMOC: 65 kts (1-min)
97 DEC 07 1200 15.5 S 162.8 W 980 55
97 DEC 07 1800 16.7 S 162.6 W 980 55
97 DEC 08 0000 17.5 S 161.8 W 980 55
97 DEC 08 0600 18.5 S 161.3 W 975 60
97 DEC 08 1200 19.5 S 160.6 W 975 60
97 DEC 08 1800 20.1 S 160.4 W 975 60
97 DEC 09 0000 20.8 S 160.1 W 980 55
97 DEC 09 0600 21.7 S 160.1 W 980 55 NPMOC: 21.7 S, 158.0 W
97 DEC 09 1200 22.8 S 159.0 W 985 50
97 DEC 09 1800 23.1 S 158.5 W 987 45 NPMOC: 35kts/23.5S,155.8W
97 DEC 10 0000 23.5 S 157.3 W 990 40
97 DEC 10 0600 24.0 S 156.3 W 995 35
97 DEC 10 1200 24.9 S 155.4 W 997 30
97 DEC 10 2100 26.0 S 153.0 W (from NPMOC Sat. Disc.)
NOTE: This track is a preliminary "best track" from Mark Kersemakers of
the Fiji TCWC. Operationally, hurricane warnings were issued
for TC Pam from 08/1200 UTC until 09/0000 UTC when highest winds
were reported as 65 kts. These were reduced slightly in post-
storm analysis.
*************************************************************************
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