1971 Typhoon IVY (1971185N23137)


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Storm track - Intensity - Wind Radii - Intensity Data - Source Data - All data

Summary Information

Storm ID 1971185N23137
Start Jul 4 00Z
Landfall Jul 7 09Z
Max Intensity 68 kt (Jul 6 00Z), 978 mb (Jul 6 00Z)
End Jul 10 18Z
ATCF IDs ,WP131971
Track status Best track data.

Storm track plot

Map of storm track

Intensity plots

Map of storm track

Radial wind information

Map of storm track

Position and Intensity Table

BASIN ISO_TIME_________ NATURE LAT LON WMO PRES USA WIND TOKYO PRES CMA WIND CMA PRES HKO WIND HKO PRES DS824 WIND TD9636 WIND TD9635 WIND TD9635 PRES
degrees north degrees east mb kts mb kts mb kts mb kts kts kts mb
WP 1971-07-04 00:00:00 TS 23.00 137.00 1004 1004 29 1006
WP 03:00:00 TS 22.73 136.74 1004 29 1005
WP 06:00:00 TS 22.45 136.45 1004 1004 29 1004
WP 09:00:00 TS 22.16 136.12 1004 29 1004
WP 12:00:00 TS 21.90 135.85 1004 1004 29 1004
WP 15:00:00 TS 21.68 135.75 1003 33 1003
WP 18:00:00 TS 21.55 135.70 1002 1002 38 1002
WP 21:00:00 TS 21.50 135.58 1001 43 1001
WP 1971-07-05 00:00:00 TS 21.60 135.38 1000 1000 48 1000 35 1000
WP 03:00:00 TS 22.02 135.08 1000 48 997 40 1000
WP 06:00:00 TS 22.60 134.80 1000 50 1000 48 995 45 1000 50 50 992
WP 09:00:00 TS 23.10 134.65 52 1000 48 995 47 1000 52 52 991
WP 12:00:00 TS 23.77 134.52 1000 55 1000 48 995 50 1000 55 55 55 991
WP 15:00:00 TS 24.83 134.37 55 997 48 995 50 998 55 56 55 991
WP 18:00:00 TS 26.05 134.21 994 55 994 48 995 50 997 55 57 55 991
WP 21:00:00 TS 27.25 134.02 57 994 58 986 52 995 57 58 57 991
WP 1971-07-06 00:00:00 TS 28.24 133.74 994 60 994 68 978 55 994 60 60 60 991
WP 03:00:00 TS 28.90 133.28 60 993 68 983 55 993 60 60 60 990
WP 06:00:00 TS 29.30 132.86 992 60 992 68 988 55 992 60 60 60 990
WP 09:00:00 TS 29.57 132.67 60 991 68 988 55 991 60 60 60 989
WP 12:00:00 TS 29.83 132.70 990 60 990 68 988 55 990 60 60 60 988
WP 15:00:00 TS 30.23 132.89 57 990 63 989 52 990 57 58 57 989
WP 18:00:00 TS 30.79 133.29 990 55 990 58 990 50 990 55 57 55 990
WP 21:00:00 TS 31.58 133.88 55 990 58 990 50 990 55 56 55 990
WP 1971-07-07 00:00:00 TS 32.41 134.60 990 55 990 58 990 50 990 55 55 55 990
WP 03:00:00 TS 33.09 135.31 52 990 58 990 47 990 52 51 52 991
WP 06:00:00 TS 33.73 136.09 990 50 990 58 990 45 991 50 47 50 992
WP 09:00:00 TS 34.37 136.94 45 991 48 992 40 991 45 43 45 993
WP 12:00:00 TS 35.01 137.90 992 40 992 38 995 35 992 40 40 40 995
WP 15:00:00 TS 35.62 138.97 35 993 38 995 30 993 35 35 996
WP 18:00:00 TS 36.23 140.08 994 30 994 38 996 25 995 30 30 998
WP 21:00:00 TS 36.99 141.07 995 38 996
WP 1971-07-08 00:00:00 TS 37.60 142.30 996 996 38 996
WP 03:00:00 TS 38.00 143.69 995 38 996
WP 06:00:00 TS 38.25 145.20 994 994 38 996
WP 09:00:00 TS 38.41 146.76 995 38 996
WP 12:00:00 TS 38.50 148.40 996 996 38 996
WP 15:00:00 TS 38.60 150.10 996 33 996
WP 18:00:00 MX 38.70 151.85 996 996 29 997
WP 21:00:00 MX 38.80 153.63 997 29 997
WP 1971-07-09 00:00:00 ET 38.90 155.35 998 998 29 998
WP 03:00:00 ET 39.03 156.88 998 998
WP 06:00:00 ET 39.15 158.40 998 998 998
WP 09:00:00 ET 39.20 160.09 998 998
WP 12:00:00 ET 39.25 161.80 998 998 998
WP 15:00:00 ET 39.36 163.42 998 998
WP 18:00:00 ET 39.55 165.00 998 998 998
WP 21:00:00 ET 39.76 166.56 997 998
WP 1971-07-10 00:00:00 ET 40.10 168.20 996 996 998
WP 03:00:00 ET 40.48 170.08 997 998
WP 06:00:00 ET 41.13 172.00 998 998 998
WP 09:00:00 ET 42.27 173.81 998 998
WP 12:00:00 ET 43.65 175.58 998 998 998
WP 15:00:00 ET 44.94 177.30 997
WP 18:00:00 ET 46.00 179.00 996 996

Source Information

Agency Information
USA bwp131971.txt
TOKYO bst_all.txt:Line=20357:IVY:7113
CMA CH1971BST.txt:Storm=16:Ivy
HKO tc-besttrack-data-current.txt:Line=7602:IVY
NEWDELHI
REUNION
BOM
NADI
WELLINGTON
DS824 w_npac.dat:723:IVY
TD9636 cons_worldwide_trop_cyclone_18710101-19891231-003:Line=22784
TD9635 typhoons-analogs_19450101-19761231.corrected:Line=16167
NEUMANN
MLC

All available IBTrACS Data

SEASON BASIN SUBBASIN ISO_TIME_________ NATURE LAT LON WMO PRES WMO AGENCY DIST2LAND LANDFALL IFLAG USA AGENCY USA ATCF_ID USA LAT USA LON USA WIND USA SSHS TOKYO LAT TOKYO LON TOKYO GRADE TOKYO PRES TOKYO R50_DIR TOKYO R30_DIR TOKYO LAND CMA LAT CMA LON CMA CAT CMA WIND CMA PRES HKO LAT HKO LON HKO CAT HKO WIND HKO PRES DS824 LAT DS824 LON DS824 STAGE DS824 WIND TD9636 LAT TD9636 LON TD9636 STAGE TD9636 WIND TD9635 LAT TD9635 LON TD9635 WIND TD9635 PRES TD9635 ROCI STORM SPEED STORM DIR
Year degrees north degrees east mb km km degrees north degrees east kts 1 degrees north degrees east 1 mb 1 degrees north degrees east 1 kts mb degrees north degrees east kts mb degrees north degrees east kts degrees north degrees east kts degrees north degrees east kts mb nmile kts degrees
1971 WP MM 1971-07-04 00:00:00 TS 23.00 137.00 1004 tokyo 1088 1088 _OO___________ -1 23.00 136.00 2 1004 0 0 0 23.00 138.00 1 29 1006 7 221
1971 WP MM 03:00:00 TS 22.73 136.74 1100 1100 _PP___________ -1 22.78 135.74 2 1004 0 0 22.68 137.75 1 29 1005 8 223
1971 WP MM 06:00:00 TS 22.45 136.45 1004 tokyo 1109 1109 _OO___________ -1 22.50 135.40 2 1004 0 0 0 22.40 137.50 1 29 1004 8 225
1971 WP MM 09:00:00 TS 22.16 136.12 1119 1119 _PP___________ -1 22.14 134.98 2 1004 0 0 22.18 137.26 1 29 1004 8 225
1971 WP MM 12:00:00 TS 21.90 135.85 1004 tokyo 1139 1135 _OO___________ -1 21.80 134.70 2 1004 0 0 0 22.00 137.00 1 29 1004 6 215
1971 WP MM 15:00:00 TS 21.68 135.75 1155 1151 _PP___________ -1 21.58 134.78 2 1003 0 0 21.77 136.73 1 33 1003 4 201
1971 WP MM 18:00:00 TS 21.55 135.70 1002 tokyo 1161 1167 _OO___________ -1 21.50 135.00 2 1002 0 0 0 21.60 136.40 2 38 1002 2 222
1971 WP MM 21:00:00 TS 21.50 135.58 1167 1149 _PP___________ -1 21.51 135.21 2 1001 0 0 21.50 135.96 2 43 1001 3 279
1971 WP MM 1971-07-05 00:00:00 TS 21.60 135.38 1000 tokyo 1149 1095 _OOO__________ -1 21.70 135.30 9 1000 0 0 0 21.60 135.50 3 48 1000 21.20 135.20 TS 35 1000 7 318
1971 WP MM 03:00:00 TS 22.02 135.08 1095 1022 _PPP__________ -1 22.08 135.10 9 1000 0 0 22.00 135.10 3 48 997 21.94 134.99 TS 40 1000 11 332
1971 WP MM 06:00:00 TS 22.60 134.80 1000 tokyo 1022 966 OOOO_____O_O__ jtwc_wp WP131971 22.60 134.80 50 0 22.60 134.80 9 1000 0 0 0 22.60 134.80 3 48 995 22.60 134.80 TS 45 1000 22.60 134.80 TC 50 22.60 134.80 50 992 240 12 340
1971 WP MM 09:00:00 TS 23.10 134.65 962 897 PPPP_____P_P__ WP131971 23.02 134.64 52 0 23.09 134.63 9 1000 0 0 23.18 134.67 3 48 995 23.15 134.64 TS 47 1000 23.02 134.64 TC 52 23.02 134.64 52 991 240 12 347
1971 WP MM 12:00:00 TS 23.77 134.52 1000 tokyo 886 781 OOOO_____OOO__ jtwc_wp WP131971 23.70 134.50 55 0 23.80 134.50 9 1000 0 0 0 23.90 134.60 3 48 995 23.80 134.50 STS 50 1000 23.70 134.50 TC 55 23.70 134.50 2 55 23.70 134.50 55 991 240 18 352
1971 WP MM 15:00:00 TS 24.83 134.37 781 654 PPPP_____PPP__ WP131971 24.82 134.37 55 0 24.93 134.34 9 997 0 0 24.78 134.46 3 48 995 24.72 134.35 STS 50 998 24.82 134.37 TC 55 25.06 134.32 2 56 24.82 134.37 55 991 210 23 353
1971 WP MM 18:00:00 TS 26.05 134.21 994 tokyo 644 531 OOOO_____OPO__ jtwc_wp WP131971 26.10 134.20 55 0 26.20 134.20 9 994 0 0 0 25.80 134.30 3 48 995 25.80 134.20 STS 50 997 26.10 134.20 TC 55 26.34 134.13 2 57 26.10 134.20 55 991 180 24 352
1971 WP MM 21:00:00 TS 27.25 134.02 531 425 PPPP_____PPP__ WP131971 27.30 133.94 57 0 27.35 134.17 9 994 0 0 26.99 134.14 3 58 986 27.01 134.10 STS 52 995 27.30 133.94 TC 57 27.44 133.89 2 58 27.30 133.94 57 991 180 22 349
1971 WP MM 1971-07-06 00:00:00 TS 28.24 133.74 994 tokyo 420 333 OOOO_____OOO__ jtwc_wp WP131971 28.30 133.60 60 0 28.30 134.00 9 994 0 0 0 28.10 133.90 4 68 978 28.10 133.90 STS 55 994 28.30 133.60 TC 60 28.30 133.60 2 60 28.30 133.60 60 991 180 18 339
1971 WP MM 03:00:00 TS 28.90 133.28 333 274 PPPP_____PPP__ WP131971 28.93 133.16 60 0 28.92 133.39 9 993 0 0 28.89 133.45 4 68 983 28.82 133.39 STS 55 993 28.93 133.16 TC 60 28.86 133.25 2 60 28.93 133.16 60 990 180 13 324
1971 WP MM 06:00:00 TS 29.30 132.86 992 tokyo 274 236 OOOO_____OPO__ jtwc_wp WP131971 29.30 132.80 60 0 29.30 132.80 9 992 0 0 0 29.40 133.00 4 68 988 29.30 132.90 STS 55 992 29.30 132.80 TC 60 29.21 132.93 2 60 29.30 132.80 60 990 180 9 322
1971 WP MM 09:00:00 TS 29.57 132.67 236 217 PPPP_____PPP__ WP131971 29.55 132.64 60 0 29.57 132.68 9 991 0 0 29.64 132.69 4 68 988 29.65 132.68 STS 55 991 29.55 132.64 TC 60 29.48 132.71 2 60 29.55 132.64 60 989 180 5 345
1971 WP MM 12:00:00 TS 29.83 132.70 990 tokyo 217 189 OOOO_____OOO__ jtwc_wp WP131971 29.80 132.70 60 0 29.80 132.80 9 990 0 0 0 29.80 132.60 4 68 988 30.00 132.70 STS 55 990 29.80 132.70 TC 60 29.80 132.70 2 60 29.80 132.70 60 988 180 7 16
1971 WP MM 15:00:00 TS 30.23 132.89 195 182 PPPP_____PPP__ WP131971 30.22 132.88 57 0 30.04 132.90 9 990 0 0 30.04 132.79 4 63 989 30.52 132.92 STS 52 990 30.22 132.88 TC 57 30.34 132.96 2 58 30.22 132.88 57 989 150 11 28
1971 WP MM 18:00:00 TS 30.79 133.29 990 tokyo 192 153 OOOO_____OPO__ jtwc_wp WP131971 30.80 133.30 55 0 30.50 133.20 9 990 0 0 0 30.50 133.20 3 58 990 31.20 133.30 STS 50 990 30.80 133.30 TC 55 30.96 133.43 2 57 30.80 133.30 55 990 120 16 32
1971 WP MM 21:00:00 TS 31.58 133.88 149 96 PPPP_____PPP__ WP131971 31.53 133.99 55 0 31.41 133.74 9 990 0 0 31.38 133.69 3 58 990 32.06 133.68 STS 50 990 31.53 133.99 TC 55 31.62 134.07 2 56 31.53 133.99 55 990 120 20 35
1971 WP MM 1971-07-07 00:00:00 TS 32.41 134.60 990 tokyo 96 57 OOOO_____OOO__ jtwc_wp WP131971 32.30 134.80 55 0 32.40 134.50 9 990 0 0 0 32.40 134.30 3 58 990 32.90 134.20 STS 50 990 32.30 134.80 TC 55 32.30 134.80 2 55 32.30 134.80 55 990 120 19 39
1971 WP MM 03:00:00 TS 33.09 135.31 57 0 PPPP_____PPP__ WP131971 32.96 135.47 52 0 33.05 135.37 9 990 0 0 33.24 134.95 3 58 990 33.52 134.88 STS 47 990 32.96 135.47 TC 52 32.98 135.58 2 51 32.96 135.47 52 991 120 18 44
1971 WP MM 06:00:00 TS 33.73 136.09 990 tokyo 9 0 OOOO_____OPO__ jtwc_wp WP131971 33.60 136.20 50 0 33.60 136.30 9 990 0 0 0 34.00 135.70 3 58 990 34.00 135.70 TS 45 991 33.60 136.20 TC 50 33.66 136.40 2 47 33.60 136.20 50 992 120 19 47
1971 WP MM 09:00:00 TS 34.37 136.94 0 0 PPPP_____PPP__ WP131971 34.31 137.08 45 0 34.26 137.11 9 991 0 0 34.73 136.56 3 48 992 34.33 136.57 TS 40 991 34.31 137.08 TC 45 34.33 137.24 2 43 34.31 137.08 45 993 120 20 49
1971 WP MM 12:00:00 TS 35.01 137.90 992 tokyo 0 0 OOOO_____OOO__ jtwc_wp WP131971 35.00 138.10 40 0 34.90 138.00 9 992 0 0 0 35.40 137.50 2 38 995 34.70 137.60 TS 35 992 35.00 138.10 TC 40 35.00 138.10 2 40 35.00 138.10 40 995 120 21 53
1971 WP MM 15:00:00 TS 35.62 138.97 0 0 PPPP_____P_P__ WP131971 35.58 139.22 35 0 35.47 139.19 9 993 0 0 35.98 138.43 2 38 995 35.28 138.83 TS 30 993 35.58 139.22 TC 35 2 35.58 139.22 35 996 90 22 56
1971 WP MM 18:00:00 TS 36.23 140.08 994 tokyo 0 0 OOOO_____O_O__ jtwc_wp WP131971 36.10 140.40 30 -1 36.00 140.40 9 994 0 0 0 36.60 139.50 2 38 996 36.00 140.20 TD 25 995 36.10 140.40 TC 30 2 36.10 140.40 30 998 60 22 51
1971 WP MM 21:00:00 TS 36.99 141.07 8 8 _PP___________ WP131971 -1 36.52 141.33 9 995 0 0 37.45 140.81 2 38 996 TD TC 2 22 52
1971 WP MM 1971-07-08 00:00:00 TS 37.60 142.30 996 tokyo 104 103 _OO___________ -1 37.00 142.30 2 996 0 0 0 38.20 142.30 2 38 996 23 64
1971 WP MM 03:00:00 TS 38.00 143.69 194 194 _PP___________ -1 37.46 143.57 2 995 0 0 38.55 143.81 2 38 996 24 74
1971 WP MM 06:00:00 TS 38.25 145.20 994 tokyo 298 298 _OO___________ -1 37.80 145.00 9 994 0 0 0 38.70 145.40 2 38 996 24 80
1971 WP MM 09:00:00 TS 38.41 146.76 423 423 _PP___________ -1 37.96 146.43 9 995 0 0 38.86 147.09 2 38 996 25 84
1971 WP MM 12:00:00 TS 38.50 148.40 996 tokyo 554 554 _OO___________ -1 38.00 148.00 9 996 0 0 0 39.00 148.80 2 38 996 26 86
1971 WP MM 15:00:00 TS 38.60 150.10 640 640 _PP___________ -1 37.99 149.76 9 996 0 0 39.21 150.45 2 33 996 27 86
1971 WP MM 18:00:00 MX 38.70 151.85 996 tokyo 732 732 _OO___________ -1 38.00 151.60 6 996 0 0 0 39.40 152.10 1 29 997 28 86
1971 WP MM 21:00:00 MX 38.80 153.63 821 821 _PP___________ -1 38.11 153.44 6 997 0 0 39.48 153.82 1 29 997 27 86
1971 WP MM 1971-07-09 00:00:00 ET 38.90 155.35 998 tokyo 879 879 _OO___________ -1 38.30 155.20 6 998 0 0 0 39.50 155.50 9 29 998 25 85
1971 WP MM 03:00:00 ET 39.03 156.88 940 940 _PP___________ -1 38.56 156.70 6 998 0 0 39.50 157.07 9 998 24 84
1971 WP MM 06:00:00 ET 39.15 158.40 998 tokyo 1003 1003 _OO___________ -1 38.80 158.20 6 998 0 0 0 39.50 158.60 9 998 25 86
1971 WP MM 09:00:00 ET 39.20 160.09 1098 1098 _PP___________ -1 38.85 159.99 6 998 0 0 39.54 160.19 9 998 26 88
1971 WP MM 12:00:00 ET 39.25 161.80 998 tokyo 1195 1195 _OO___________ -1 38.90 161.80 6 998 0 0 0 39.60 161.80 9 998 26 86
1971 WP MM 15:00:00 ET 39.36 163.42 1291 1291 _PP___________ -1 39.11 163.47 6 998 0 0 39.62 163.37 9 998 25 83
1971 WP MM 18:00:00 ET 39.55 165.00 998 tokyo 1375 1375 _OO___________ -1 39.40 165.00 6 998 0 0 0 39.70 165.00 9 998 25 81
1971 WP MM 21:00:00 ET 39.76 166.56 1424 1424 _PP___________ -1 39.65 166.27 6 997 0 0 39.88 166.84 9 998 25 77
1971 WP MM 1971-07-10 00:00:00 ET 40.10 168.20 996 tokyo 1473 1473 _OO___________ -1 40.00 167.70 6 996 0 0 0 40.20 168.70 9 998 28 75
1971 WP MM 03:00:00 ET 40.48 170.08 1538 1538 _PP___________ -1 40.35 169.79 6 997 0 0 40.62 170.37 9 998 31 70
1971 WP MM 06:00:00 ET 41.13 172.00 998 tokyo 1582 1573 _OO___________ -1 41.00 172.00 6 998 0 0 0 41.30 172.00 9 998 33 58
1971 WP MM 09:00:00 ET 42.27 173.81 1569 1539 _PP___________ -1 42.25 173.86 6 998 0 0 42.31 173.70 9 998 36 46
1971 WP MM 12:00:00 ET 43.65 175.58 998 tokyo 1525 1341 _OO___________ -1 43.70 175.60 6 998 0 0 0 43.50 175.50 9 998 37 43
1971 WP MM 15:00:00 ET 44.94 177.30 1336 1170 _P____________ -1 44.94 177.30 6 997 0 0 9 34 46
1971 WP MM 18:00:00 ET 46.00 179.00 996 tokyo 1156 _O____________ -1 46.00 179.00 6 996 0 0 0 32 48