Site contains unofficial IBTrACS data. Visit the IBTrACS Website to access archived data.

1971 Depression NOT_NAMED (1971220N21088)


IBTrACS version v04r00. Visit IBTrACS website for data access.
Please direct all questions to the IBTrACS Q and A forum

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

Summary Information

Storm ID 1971220N21088
Start Aug 7 15Z
Landfall Aug 8 06Z
Max Intensity 25 kt (Aug 7 18Z)
End Aug 9 15Z
ATCF IDs ,IO071971
Track status Best track data.

Storm track plot

Map of storm track

Intensity plots

Map of storm track

Radial wind information

No radial wind information for this storm


Position and Intensity Table

BASIN ISO_TIME_________ NATURE LAT LON DS824 WIND
degrees north degrees east kts
NI 1971-08-07 15:00:00 NR 21.30 88.30
NI 18:00:00 TS 21.32 88.20 25
NI 21:00:00 TS 21.39 88.11 25
NI 1971-08-08 00:00:00 TS 21.49 87.99 25
NI 03:00:00 TS 21.62 87.81 25
NI 06:00:00 TS 21.80 87.60 25
NI 09:00:00 TS 22.00 87.36 25
NI 12:00:00 TS 22.21 87.10 25
NI 15:00:00 TS 22.39 86.81 25
NI 18:00:00 TS 22.48 86.50 25
NI 21:00:00 TS 22.49 86.20 25
NI 1971-08-09 00:00:00 TS 22.50 85.90 25
NI 03:00:00 TS 22.60 85.59 25
NI 06:00:00 TS 22.80 85.32 25
NI 09:00:00 TS 23.08 85.10 25
NI 12:00:00 TS 23.41 84.90 25
NI 15:00:00 NR 23.80 84.70

Source Information

Agency Information
USA bio071971.txt
TOKYO
CMA
HKO
NEWDELHI
REUNION
BOM
NADI
WELLINGTON
DS824 n_ind.dat:1197:07B
TD9636 cons_worldwide_trop_cyclone_18710101-19891231-004:Line=11094
TD9635
NEUMANN
MLC

All available IBTrACS Data

SEASON BASIN SUBBASIN ISO_TIME_________ NATURE LAT LON DIST2LAND LANDFALL IFLAG USA AGENCY USA ATCF_ID USA LAT USA LON USA SSHS DS824 LAT DS824 LON DS824 STAGE DS824 WIND TD9636 LAT TD9636 LON TD9636 STAGE STORM SPEED STORM DIR
Year degrees north degrees east km km degrees north degrees east 1 degrees north degrees east kts degrees north degrees east kts degrees
1971 NI BB 1971-08-07 15:00:00 NR 21.30 88.30 33 33 __________O___ -5 21.30 88.30 1 2 281
1971 NI BB 18:00:00 TS 21.32 88.20 33 22 O________OP___ jtwc_io IO071971 21.30 88.20 -5 21.30 88.20 TC 25 21.33 88.20 1 2 296
1971 NI BB 21:00:00 TS 21.39 88.11 24 23 P________PP___ IO071971 21.39 88.12 -5 21.39 88.12 TC 25 21.38 88.09 1 3 310
1971 NI BB 1971-08-08 00:00:00 TS 21.49 87.99 23 11 O________OP___ jtwc_io IO071971 21.50 88.00 -5 21.50 88.00 TC 25 21.47 87.96 1 4 311
1971 NI BB 03:00:00 TS 21.62 87.81 11 0 P________PO___ IO071971 21.63 87.82 -5 21.63 87.82 TC 25 21.60 87.80 1 5 311
1971 NI BB 06:00:00 TS 21.80 87.60 0 0 O________OP___ jtwc_io IO071971 21.80 87.60 -5 21.80 87.60 TC 25 21.79 87.59 1 6 312
1971 NI BB 09:00:00 TS 22.00 87.36 0 0 P________PP___ IO071971 22.00 87.37 -5 22.00 87.37 TC 25 22.01 87.35 1 6 311
1971 NI BB 12:00:00 TS 22.21 87.10 0 0 O________OP___ jtwc_io IO071971 22.20 87.10 -5 22.20 87.10 TC 25 22.22 87.09 1 6 307
1971 NI BB 15:00:00 TS 22.39 86.81 0 0 P________PO___ IO071971 22.38 86.81 -5 22.38 86.81 TC 25 22.40 86.80 1 6 297
1971 NI BB 18:00:00 TS 22.48 86.50 0 0 O________OP___ jtwc_io IO071971 22.50 86.50 -5 22.50 86.50 TC 25 22.45 86.50 1 6 280
1971 NI BB 21:00:00 TS 22.49 86.20 0 0 P________PP___ IO071971 22.50 86.20 -5 22.50 86.20 TC 25 22.47 86.19 1 6 272
1971 NI BB 1971-08-09 00:00:00 TS 22.50 85.90 0 0 O________OP___ jtwc_io IO071971 22.50 85.90 -5 22.50 85.90 TC 25 22.50 85.89 1 6 281
1971 NI BB 03:00:00 TS 22.60 85.59 0 0 P________PO___ IO071971 22.61 85.59 -5 22.61 85.59 TC 25 22.60 85.60 1 6 299
1971 NI BB 06:00:00 TS 22.80 85.32 0 0 O________OP___ jtwc_io IO071971 22.80 85.30 -5 22.80 85.30 TC 25 22.80 85.35 1 7 316
1971 NI BB 09:00:00 TS 23.08 85.10 0 0 P________PP___ IO071971 23.08 85.08 -5 23.08 85.08 TC 25 23.08 85.12 1 7 328
1971 NI BB 12:00:00 TS 23.41 84.90 0 0 O________OP___ jtwc_io IO071971 23.40 84.90 -5 23.40 84.90 TC 25 23.43 84.90 1 8 333
1971 NI BB 15:00:00 NR 23.80 84.70 0 __________O___ IO071971 -5 TC 23.80 84.70 1 9 334