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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
days since 1858-11-17 00:00:00 degrees north kts kts 1 kts kts degrees north degrees north degrees north degrees east
WP 1971-07-04 00:00:00 TS 23.00 137.00 1004 1004 29 1006
WP 03:00:00 TS 22.70 136.70 1004 29 1005
WP 06:00:00 TS 22.40 136.50 1004 1004 29 1004
WP 09:00:00 TS 22.20 136.10 1004 29 1004
WP 12:00:00 TS 21.90 135.90 1004 1004 29 1004
WP 15:00:00 TS 21.70 135.80 1003 34 1003
WP 18:00:00 TS 21.60 135.70 1002 1002 38 1002
WP 21:00:00 TS 21.50 135.60 1001 43 1001
WP 1971-07-05 00:00:00 TS 21.60 135.40 1000 1000 48 1000 35 1000
WP 03:00:00 TS 22.00 135.10 1000 48 998 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 23.10 134.60 53 1000 48 995 48 1000 53 53 992
WP 12:00:00 TS 23.80 134.50 1000 55 1000 48 995 50 1000 55 55 55 991
WP 15:00:00 TS 24.80 134.40 55 997 48 995 50 999 55 56 55 991
WP 18:00:00 TS 26.10 134.20 994 55 994 48 995 50 997 55 58 55 991
WP 21:00:00 TS 27.20 134.00 58 994 58 987 53 996 58 59 58 991
WP 1971-07-06 00:00:00 TS 28.20 133.70 994 60 994 68 978 55 994 60 60 60 991
WP 03:00:00 TS 28.90 133.30 60 993 68 983 55 993 60 60 60 991
WP 06:00:00 TS 29.30 132.90 992 60 992 68 988 55 992 60 60 60 990
WP 09:00:00 TS 29.60 132.70 60 991 68 988 55 991 60 60 60 989
WP 12:00:00 TS 29.80 132.70 990 60 990 68 988 55 990 60 60 60 988
WP 15:00:00 TS 30.20 132.90 58 990 63 989 53 990 58 59 58 989
WP 18:00:00 TS 30.80 133.30 990 55 990 58 990 50 990 55 58 55 990
WP 21:00:00 TS 31.60 133.90 55 990 58 990 50 990 55 56 55 990
WP 1971-07-07 00:00:00 TS 32.40 134.60 990 55 990 58 990 50 990 55 55 55 990
WP 03:00:00 TS 33.10 135.30 53 990 58 990 48 991 53 51 53 991
WP 06:00:00 TS 33.70 136.10 990 50 990 58 990 45 991 50 48 50 992
WP 09:00:00 TS 34.40 136.90 45 991 48 993 40 992 45 44 45 994
WP 12:00:00 TS 35.00 137.90 992 40 992 38 995 35 992 40 40 40 995
WP 15:00:00 TS 35.60 139.00 35 993 38 996 30 994 35 35 997
WP 18:00:00 TS 36.20 140.10 994 30 994 38 996 25 995 30 30 998
WP 21:00:00 TS 37.00 141.10 995 38 996
WP 1971-07-08 00:00:00 TS 37.60 142.30 996 996 38 996
WP 03:00:00 TS 38.00 143.70 995 38 996
WP 06:00:00 TS 38.30 145.20 994 994 38 996
WP 09:00:00 TS 38.40 146.80 995 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 34 997
WP 18:00:00 MX 38.70 151.90 996 996 29 997
WP 21:00:00 MX 38.80 153.60 997 29 998
WP 1971-07-09 00:00:00 ET 38.90 155.40 998 998 29 998
WP 03:00:00 ET 39.00 156.90 998 998
WP 06:00:00 ET 39.20 158.40 998 998 998
WP 09:00:00 ET 39.20 160.10 998 998
WP 12:00:00 ET 39.30 161.80 998 998 998
WP 15:00:00 ET 39.40 163.40 998 998
WP 18:00:00 ET 39.60 165.00 998 998 998
WP 21:00:00 ET 39.80 166.60 997 998
WP 1971-07-10 00:00:00 ET 40.10 168.20 996 996 998
WP 03:00:00 ET 40.50 170.10 997 998
WP 06:00:00 ET 41.10 172.00 998 998 998
WP 09:00:00 ET 42.30 173.80 998 998
WP 12:00:00 ET 43.70 175.60 998 998 998
WP 15:00:00 ET 44.90 177.30 997
WP 18:00:00 ET 46.00 179.00 996 996

Source Information

Agency Information
USA bwp131971.txt
TOKYO bst_all.txt:Line=20356: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 days since 1858-11-17 00:00:00 degrees north kts mb km km degrees north mb nmile degrees north degrees east kts mb nmile nmile 1 degrees north degrees east 1 kts mb degrees north degrees east kts nmile degrees north 1 kts mb degrees north kts mb degrees north degrees east degrees north degrees east
1971 WP MM 1971-07-04 00:00:00 TS 23.00 137.00 1004 tokyo 1088 1088 _OO____________ -5 23.00 136.00 2 1004 0 0 0 23.00 138.00 1 29 1006 7 220
1971 WP MM 03:00:00 TS 22.70 136.70 1100 1100 _PP____________ -5 22.80 135.70 2 1004 0 0 22.70 137.70 1 29 1005 8 225
1971 WP MM 06:00:00 TS 22.40 136.50 1004 tokyo 1109 1109 _OO____________ -5 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 22.20 136.10 1119 1119 _PP____________ -5 22.10 135.00 2 1004 0 0 22.20 137.30 1 29 1004 8 225
1971 WP MM 12:00:00 TS 21.90 135.90 1004 tokyo 1139 1135 _OO____________ -5 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 21.70 135.80 1155 1151 _PP____________ -5 21.60 134.80 2 1003 0 0 21.80 136.70 1 34 1003 4 200
1971 WP MM 18:00:00 TS 21.60 135.70 1002 tokyo 1161 1161 _OO____________ -5 21.50 135.00 2 1002 0 0 0 21.60 136.40 2 38 1002 2 220
1971 WP MM 21:00:00 TS 21.50 135.60 1167 1149 _PP____________ -5 21.50 135.20 2 1001 0 0 21.50 136.00 2 43 1001 3 280
1971 WP MM 1971-07-05 00:00:00 TS 21.60 135.40 1000 tokyo 1149 1095 _OOO___________ -5 21.70 135.30 9 1000 0 0 0 21.60 135.50 3 48 1000 21.20 135.20 TS 35 1000 7 320
1971 WP MM 03:00:00 TS 22.00 135.10 1095 1022 _PPP___________ -5 22.10 135.10 9 1000 0 0 22.00 135.10 3 48 998 21.90 135.00 TS 40 1000 11 330
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 23.10 134.60 962 897 PPPP______P_P__ WP131971 23.00 134.60 53 0 23.10 134.60 9 1000 0 0 23.20 134.70 3 48 995 23.20 134.60 TS 48 1000 23.00 134.60 TC 53 23.00 134.60 53 992 240 12 345
1971 WP MM 12:00:00 TS 23.80 134.50 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 18 350
1971 WP MM 15:00:00 TS 24.80 134.40 781 654 PPPP______PPP__ WP131971 24.80 134.40 55 0 24.90 134.30 9 997 0 0 24.80 134.50 3 48 995 24.70 134.30 STS 50 999 24.80 134.40 TC 55 25.10 134.30 2 56 24.80 134.40 55 991 210 23 355
1971 WP MM 18:00:00 TS 26.10 134.20 994 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 26.30 134.10 2 58 26.10 134.20 55 991 180 24 350
1971 WP MM 21:00:00 TS 27.20 134.00 531 425 PPPP______PPP__ WP131971 27.30 133.90 58 0 27.40 134.20 9 994 0 0 27.00 134.10 3 58 987 27.00 134.10 STS 53 996 27.30 133.90 TC 58 27.40 133.90 2 59 27.30 133.90 58 991 180 22 350
1971 WP MM 1971-07-06 00:00:00 TS 28.20 133.70 994 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 18 340
1971 WP MM 03:00:00 TS 28.90 133.30 333 274 PPPP______PPP__ WP131971 28.90 133.20 60 0 28.90 133.40 9 993 0 0 28.90 133.50 4 68 983 28.80 133.40 STS 55 993 28.90 133.20 TC 60 28.90 133.30 2 60 28.90 133.20 60 991 180 13 325
1971 WP MM 06:00:00 TS 29.30 132.90 992 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 29.20 132.90 2 60 29.30 132.80 60 990 180 9 320
1971 WP MM 09:00:00 TS 29.60 132.70 236 217 PPPP______PPP__ WP131971 29.50 132.60 60 0 29.60 132.70 9 991 0 0 29.60 132.70 4 68 988 29.60 132.70 STS 55 991 29.50 132.60 TC 60 29.50 132.70 2 60 29.50 132.60 60 989 180 5 345
1971 WP MM 12:00:00 TS 29.80 132.70 990 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 15
1971 WP MM 15:00:00 TS 30.20 132.90 195 182 PPPP______PPP__ WP131971 30.20 132.90 58 0 30.00 132.90 9 990 0 0 30.00 132.80 4 63 989 30.50 132.90 STS 53 990 30.20 132.90 TC 58 30.30 133.00 2 59 30.20 132.90 58 989 150 11 30
1971 WP MM 18:00:00 TS 30.80 133.30 990 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 31.00 133.40 2 58 30.80 133.30 55 990 120 16 30
1971 WP MM 21:00:00 TS 31.60 133.90 149 96 PPPP______PPP__ WP131971 31.50 134.00 55 0 31.40 133.70 9 990 0 0 31.40 133.70 3 58 990 32.10 133.70 STS 50 990 31.50 134.00 TC 55 31.60 134.10 2 56 31.50 134.00 55 990 120 20 35
1971 WP MM 1971-07-07 00:00:00 TS 32.40 134.60 990 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 40
1971 WP MM 03:00:00 TS 33.10 135.30 57 0 PPPP______PPP__ WP131971 33.00 135.50 53 0 33.00 135.40 9 990 0 0 33.20 134.90 3 58 990 33.50 134.90 STS 48 991 33.00 135.50 TC 53 33.00 135.60 2 51 33.00 135.50 53 991 120 18 45
1971 WP MM 06:00:00 TS 33.70 136.10 990 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 33.70 136.40 2 48 33.60 136.20 50 992 120 19 45
1971 WP MM 09:00:00 TS 34.40 136.90 0 0 PPPP______PPP__ WP131971 34.30 137.10 45 0 34.30 137.10 9 991 0 0 34.70 136.60 3 48 993 34.30 136.60 TS 40 992 34.30 137.10 TC 45 34.30 137.20 2 44 34.30 137.10 45 994 120 20 50
1971 WP MM 12:00:00 TS 35.00 137.90 992 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 55
1971 WP MM 15:00:00 TS 35.60 139.00 0 0 PPPP______P_P__ WP131971 35.60 139.20 35 0 35.50 139.20 9 993 0 0 36.00 138.40 2 38 996 35.30 138.80 TS 30 994 35.60 139.20 TC 35 2 35.60 139.20 35 997 90 22 55
1971 WP MM 18:00:00 TS 36.20 140.10 994 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 50
1971 WP MM 21:00:00 TS 37.00 141.10 8 8 _PP____________ WP131971 -5 36.50 141.30 9 995 0 0 37.50 140.80 2 38 996 TD TC 2 22 50
1971 WP MM 1971-07-08 00:00:00 TS 37.60 142.30 996 tokyo 104 103 _OO____________ -5 37.00 142.30 2 996 0 0 0 38.20 142.30 2 38 996 23 65
1971 WP MM 03:00:00 TS 38.00 143.70 194 194 _PP____________ -5 37.50 143.60 2 995 0 0 38.50 143.80 2 38 996 24 75
1971 WP MM 06:00:00 TS 38.30 145.20 994 tokyo 298 298 _OO____________ -5 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 38.40 146.80 423 423 _PP____________ -5 38.00 146.40 9 995 0 0 38.90 147.10 2 38 996 25 85
1971 WP MM 12:00:00 TS 38.50 148.40 996 tokyo 554 554 _OO____________ -5 38.00 148.00 9 996 0 0 0 39.00 148.80 2 38 996 26 85
1971 WP MM 15:00:00 TS 38.60 150.10 640 640 _PP____________ -5 38.00 149.80 9 996 0 0 39.20 150.40 2 34 997 27 85
1971 WP MM 18:00:00 MX 38.70 151.90 996 tokyo 732 732 _OO____________ -5 38.00 151.60 6 996 0 0 0 39.40 152.10 1 29 997 28 85
1971 WP MM 21:00:00 MX 38.80 153.60 821 821 _PP____________ -5 38.10 153.40 6 997 0 0 39.50 153.80 1 29 998 27 85
1971 WP MM 1971-07-09 00:00:00 ET 38.90 155.40 998 tokyo 879 879 _OO____________ -5 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 39.00 156.90 940 940 _PP____________ -5 38.60 156.70 6 998 0 0 39.50 157.10 9 998 24 85
1971 WP MM 06:00:00 ET 39.20 158.40 998 tokyo 1003 1003 _OO____________ -5 38.80 158.20 6 998 0 0 0 39.50 158.60 9 998 25 85
1971 WP MM 09:00:00 ET 39.20 160.10 1098 1098 _PP____________ -5 38.90 160.00 6 998 0 0 39.50 160.20 9 998 26 90
1971 WP MM 12:00:00 ET 39.30 161.80 998 tokyo 1195 1195 _OO____________ -5 38.90 161.80 6 998 0 0 0 39.60 161.80 9 998 26 85
1971 WP MM 15:00:00 ET 39.40 163.40 1291 1291 _PP____________ -5 39.10 163.50 6 998 0 0 39.60 163.40 9 998 25 85
1971 WP MM 18:00:00 ET 39.60 165.00 998 tokyo 1375 1375 _OO____________ -5 39.40 165.00 6 998 0 0 0 39.70 165.00 9 998 25 80
1971 WP MM 21:00:00 ET 39.80 166.60 1424 1424 _PP____________ -5 39.70 166.30 6 997 0 0 39.90 166.80 9 998 25 75
1971 WP MM 1971-07-10 00:00:00 ET 40.10 168.20 996 tokyo 1473 1473 _OO____________ -5 40.00 167.70 6 996 0 0 0 40.20 168.70 9 998 28 75
1971 WP MM 03:00:00 ET 40.50 170.10 1538 1538 _PP____________ -5 40.30 169.80 6 997 0 0 40.60 170.40 9 998 31 70
1971 WP MM 06:00:00 ET 41.10 172.00 998 tokyo 1582 1573 _OO____________ -5 41.00 172.00 6 998 0 0 0 41.30 172.00 9 998 33 60
1971 WP MM 09:00:00 ET 42.30 173.80 1569 1539 _PP____________ -5 42.20 173.90 6 998 0 0 42.30 173.70 9 998 36 45
1971 WP MM 12:00:00 ET 43.70 175.60 998 tokyo 1525 1341 _OO____________ -5 43.70 175.60 6 998 0 0 0 43.50 175.50 9 998 37 45
1971 WP MM 15:00:00 ET 44.90 177.30 1336 1170 _P_____________ -5 44.90 177.30 6 997 0 0 9 34 45
1971 WP MM 18:00:00 ET 46.00 179.00 996 tokyo 1156 _O_____________ -5 46.00 179.00 6 996 0 0 0 32 50