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1981 Moderate Tropical Storm HELYETTE (1981028S12069)


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

Summary Information

Storm ID 1981028S12069
Start Jan 28 00Z
Landfall Feb 1 03Z, Feb 3 06Z
Max Intensity 45 kt (Jan 30 00Z)
End Feb 6 06Z
ATCF IDs ,SH131981
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 USA WIND TD9636 WIND NEUMANN WIND
days since 1858-11-17 00:00:00 degrees north degrees north degrees east
SI 1981-01-28 00:00:00 TS -11.70 69.00 20 20 20
SI 03:00:00 TS -11.90 69.00 20 21 20
SI 06:00:00 TS -12.10 69.10 20 23 20
SI 09:00:00 TS -12.30 69.10 23 24 23
SI 12:00:00 TS -12.60 69.20 25 25 25
SI 15:00:00 TS -12.90 69.30 25 26 25
SI 18:00:00 TS -13.20 69.40 25 28 25
SI 21:00:00 TS -13.50 69.50 28 29 28
SI 1981-01-29 00:00:00 TS -13.80 69.60 30 30 30
SI 03:00:00 TS -14.10 69.60 30 31 30
SI 06:00:00 TS -14.40 69.60 30 33 30
SI 09:00:00 TS -14.80 69.40 33 34 33
SI 12:00:00 TS -15.10 69.30 35 35 35
SI 15:00:00 TS -15.50 69.20 38 38 38
SI 18:00:00 TS -16.00 69.10 40 40 40
SI 21:00:00 TS -16.40 68.90 43 43 43
SI 1981-01-30 00:00:00 TS -16.80 68.60 45 45 45
SI 03:00:00 TS -17.20 68.30 45 45 45
SI 06:00:00 TS -17.60 67.80 45 45 45
SI 09:00:00 TS -17.90 67.30 45 45 45
SI 12:00:00 TS -18.20 66.80 45 45 45
SI 15:00:00 TS -18.40 66.30 43 43 43
SI 18:00:00 TS -18.50 65.70 40 40 40
SI 21:00:00 TS -18.60 65.20 38 38 38
SI 1981-01-31 00:00:00 TS -18.80 64.50 35 35 35
SI 03:00:00 TS -18.90 63.90 33 34 33
SI 06:00:00 TS -19.10 63.10 30 33 30
SI 09:00:00 TS -19.20 62.40 30 31 30
SI 12:00:00 TS -19.40 61.50 30 30 30
SI 15:00:00 TS -19.50 60.70 30 30 30
SI 18:00:00 TS -19.60 59.90 30 30 30
SI 21:00:00 TS -19.90 59.10 30 30 30
SI 1981-02-01 00:00:00 TS -20.10 58.40 30 30 30
SI 03:00:00 TS -20.40 57.60 30 30 30
SI 06:00:00 TS -20.70 57.00 30 30 30
SI 09:00:00 TS -21.00 56.50 30 30 30
SI 12:00:00 TS -21.30 55.90 30 30 30
SI 15:00:00 TS -21.70 55.10 30 31 30
SI 18:00:00 TS -22.20 54.30 30 33 30
SI 21:00:00 TS -22.70 53.40 33 34 33
SI 1981-02-02 00:00:00 TS -23.20 52.60 35 35 35
SI 03:00:00 TS -23.60 52.10 35 35 35
SI 06:00:00 TS -23.90 51.60 35 35 35
SI 09:00:00 TS -24.00 51.10 35 35 35
SI 12:00:00 TS -24.00 50.70 35 35 35
SI 15:00:00 TS -24.00 50.10 35 36 35
SI 18:00:00 TS -24.00 49.60 35 38 35
SI 21:00:00 TS -23.90 49.00 38 39 38
SI 1981-02-03 00:00:00 TS -23.80 48.50 40 40 40
SI 03:00:00 TS -23.80 47.60 40 40 35
SI 06:00:00 TS -23.80 46.70 40 40 30
SI 09:00:00 TS -23.90 46.00 40 40 28
SI 12:00:00 TS -24.10 45.30 40 40 25
SI 15:00:00 TS -24.30 44.80 38 36 25
SI 18:00:00 TS -24.50 44.50 35 33 25
SI 21:00:00 TS -24.70 44.10 30 29 25
SI 1981-02-04 00:00:00 TS -25.00 43.60 25 25 25
SI 03:00:00 TS -25.20 43.20 23 24 23
SI 06:00:00 MX -25.60 42.80 20 23 20
SI 09:00:00 MX -26.00 42.40 20 21 20
SI 12:00:00 TS -26.50 41.90 20 20 20
SI 15:00:00 NR -27.30 41.60
SI 18:00:00 NR -27.80 41.80
SI 21:00:00 NR -28.40 42.40
SI 1981-02-05 00:00:00 NR -29.00 43.40
SI 03:00:00 NR -29.30 44.50
SI 06:00:00 TS -29.50 45.60
SI 09:00:00 TS -29.70 46.40
SI 12:00:00 NR -29.90 47.00
SI 15:00:00 NR -30.20 47.70
SI 18:00:00 NR -30.70 48.40
SI 21:00:00 NR -31.30 49.20
SI 1981-02-06 00:00:00 NR -32.10 50.00
SI 03:00:00 NR -33.00 50.60
SI 06:00:00 ET -34.00 51.00

Source Information

Agency Information
USA bsh131981.txt
TOKYO
CMA
HKO
NEWDELHI
REUNION WMO-Best-Tracks.txt:Line=11978:helyette
BOM
NADI
WELLINGTON
DS824
TD9636 cons_worldwide_trop_cyclone_18710101-19891231-005:Line=12033
TD9635
NEUMANN tracks.sh:Storm=605:HELYETTE:BSH1281:JTWC
MLC

All available IBTrACS Data

SEASON BASIN SUBBASIN ISO_TIME_________ NATURE LAT LON WMO AGENCY DIST2LAND LANDFALL IFLAG USA AGENCY USA ATCF_ID USA LAT USA LON USA WIND USA SSHS REUNION LAT REUNION LON REUNION TYPE REUNION TNUM TD9636 LAT TD9636 LON TD9636 STAGE TD9636 WIND NEUMANN LAT NEUMANN LON NEUMANN CLASS NEUMANN WIND STORM SPEED STORM DIR
Year days since 1858-11-17 00:00:00 degrees north mb km km degrees north mb nmile nmile degrees east 1 kts mb degrees north kts mb degrees north degrees east degrees north degrees east
1981 SI MM 1981-01-28 00:00:00 TS -11.70 69.00 1530 1516 O__________O_O_ jtwc_sh SH131981 -11.70 69.00 20 -1 -11.70 69.00 1 20 -11.70 69.00 TC 20 4 170
1981 SI MM 03:00:00 TS -11.90 69.00 1516 1510 P__________P_P_ SH131981 -11.90 69.10 20 -1 -11.90 69.00 1 21 -11.90 69.10 TC 20 4 170
1981 SI MM 06:00:00 TS -12.10 69.10 1510 1497 O__________P_O_ jtwc_sh SH131981 -12.10 69.10 20 -1 -12.10 69.10 1 23 -12.10 69.10 TC 20 5 170
1981 SI MM 09:00:00 TS -12.30 69.10 1497 1485 P__________P_P_ SH131981 -12.30 69.10 23 -1 -12.40 69.10 1 24 -12.30 69.10 TC 23 5 165
1981 SI MM 12:00:00 TS -12.60 69.20 1485 1475 O__________O_O_ jtwc_sh SH131981 -12.60 69.20 25 -1 -12.60 69.20 1 25 -12.60 69.20 TC 25 6 165
1981 SI MM 15:00:00 TS -12.90 69.30 1475 1465 P__________P_P_ SH131981 -12.90 69.30 25 -1 -12.90 69.30 1 26 -12.90 69.30 TC 25 6 160
1981 SI MM 18:00:00 TS -13.20 69.40 1465 1456 O__________P_O_ jtwc_sh SH131981 -13.20 69.40 25 -1 -13.20 69.40 1 28 -13.20 69.40 TC 25 6 160
1981 SI MM 21:00:00 TS -13.50 69.50 1456 1448 P__________P_P_ SH131981 -13.50 69.50 28 -1 -13.50 69.50 1 29 -13.50 69.50 TC 28 6 165
1981 SI MM 1981-01-29 00:00:00 TS -13.80 69.60 1448 1431 O__________O_O_ jtwc_sh SH131981 -13.80 69.60 30 -1 -13.80 69.60 1 30 -13.80 69.60 TC 30 6 170
1981 SI MM 03:00:00 TS -14.10 69.60 1431 1415 P__________P_P_ SH131981 -14.10 69.60 30 -1 -14.10 69.60 1 31 -14.10 69.60 TC 30 6 185
1981 SI MM 06:00:00 TS -14.40 69.60 reunion 1415 1374 O_____O____P_O_ jtwc_sh SH131981 -14.40 69.60 30 -1 -14.70 69.20 2 9.90 -14.40 69.60 1 33 -14.40 69.60 TC 30 7 195
1981 SI MM 09:00:00 TS -14.80 69.40 1374 1349 P_____P____P_P_ SH131981 -14.70 69.50 33 -1 -15.00 69.00 2 -14.70 69.50 1 34 -14.70 69.50 TC 33 8 200
1981 SI MM 12:00:00 TS -15.10 69.30 reunion 1349 1319 O_____O____O_O_ jtwc_sh SH131981 -15.10 69.40 35 0 -15.30 68.90 99 9.90 -15.10 69.40 2 35 -15.10 69.40 TC 35 8 195
1981 SI MM 15:00:00 TS -15.50 69.20 1319 1291 P_____P____P_P_ SH131981 -15.50 69.30 38 0 -15.70 68.80 99 -15.50 69.30 2 38 -15.50 69.30 TC 38 9 195
1981 SI MM 18:00:00 TS -16.00 69.10 reunion 1286 1249 O_____O____P_O_ jtwc_sh SH131981 -15.90 69.20 40 0 -16.10 68.70 99 9.90 -15.90 69.20 2 40 -15.90 69.20 TC 40 9 200
1981 SI MM 21:00:00 TS -16.40 68.90 1249 1203 P_____P____P_P_ SH131981 -16.30 69.10 43 0 -16.50 68.40 99 -16.40 69.10 2 43 -16.30 69.10 TC 43 10 205
1981 SI MM 1981-01-30 00:00:00 TS -16.80 68.60 reunion 1203 1158 O_____O____O_O_ jtwc_sh SH131981 -16.80 68.80 45 0 -16.90 68.10 99 9.90 -16.80 68.80 2 45 -16.80 68.80 TC 45 10 215
1981 SI MM 03:00:00 TS -17.20 68.30 1158 1104 P_____P____P_P_ SH131981 -17.20 68.40 45 0 -17.30 67.90 99 -17.20 68.40 2 45 -17.20 68.40 TC 45 11 225
1981 SI MM 06:00:00 TS -17.60 67.80 reunion 1093 1043 O_____O____P_O_ jtwc_sh SH131981 -17.60 67.90 45 0 -17.70 67.70 3 9.90 -17.60 67.90 2 45 -17.60 67.90 TC 45 11 235
1981 SI MM 09:00:00 TS -17.90 67.30 1033 976 P_____P____P_P_ SH131981 -17.90 67.30 45 0 -17.90 67.40 3 -17.90 67.30 2 45 -17.90 67.30 TC 45 12 245
1981 SI MM 12:00:00 TS -18.20 66.80 reunion 976 919 O_____O____O_O_ jtwc_sh SH131981 -18.20 66.70 45 0 -18.00 67.00 99 9.90 -18.20 66.70 2 45 -18.20 66.70 TC 45 11 245
1981 SI MM 15:00:00 TS -18.40 66.30 916 862 P_____P____P_P_ SH131981 -18.40 66.20 43 0 -18.30 66.60 99 -18.40 66.10 2 43 -18.40 66.20 TC 43 10 250
1981 SI MM 18:00:00 TS -18.50 65.70 reunion 852 798 O_____O____P_O_ jtwc_sh SH131981 -18.50 65.60 40 0 -18.50 66.20 99 9.90 -18.60 65.60 2 40 -18.50 65.60 TC 40 11 255
1981 SI MM 21:00:00 TS -18.60 65.20 798 731 P_____P____P_P_ SH131981 -18.60 65.00 38 0 -18.60 65.70 99 -18.70 65.00 2 38 -18.60 65.00 TC 38 12 255
1981 SI MM 1981-01-31 00:00:00 TS -18.80 64.50 reunion 721 657 O_____O____O_O_ jtwc_sh SH131981 -18.80 64.30 35 0 -18.70 65.20 99 9.90 -18.80 64.30 2 35 -18.80 64.30 TC 35 13 260
1981 SI MM 03:00:00 TS -18.90 63.90 657 580 P_____P____P_P_ SH131981 -18.90 63.60 33 -1 -18.80 64.80 99 -19.00 63.60 2 34 -18.90 63.60 TC 33 13 260
1981 SI MM 06:00:00 TS -19.10 63.10 reunion 570 496 O_____O____P_O_ jtwc_sh SH131981 -19.10 62.80 30 -1 -18.90 64.20 3 9.90 -19.10 62.80 2 33 -19.10 62.80 TC 30 15 260
1981 SI MM 09:00:00 TS -19.20 62.40 496 412 P_____P____P_P_ SH131981 -19.30 62.00 30 -1 -18.90 63.40 3 -19.30 62.00 2 31 -19.30 62.00 TC 30 16 260
1981 SI MM 12:00:00 TS -19.40 61.50 reunion 402 326 O_____O____O_O_ jtwc_sh SH131981 -19.50 61.20 30 -1 -18.90 62.50 99 9.90 -19.50 61.20 1 30 -19.50 61.20 TC 30 16 260
1981 SI MM 15:00:00 TS -19.50 60.70 316 242 P_____P____P_P_ SH131981 -19.60 60.40 30 -1 -18.90 61.60 99 -19.70 60.40 1 30 -19.60 60.40 TC 30 15 260
1981 SI MM 18:00:00 TS -19.60 59.90 reunion 233 156 O_____O____P_O_ jtwc_sh SH131981 -19.80 59.70 30 -1 -19.10 60.70 99 9.90 -19.80 59.60 1 30 -19.80 59.70 TC 30 16 255
1981 SI MM 21:00:00 TS -19.90 59.10 142 66 P_____P____P_P_ SH131981 -20.00 58.90 30 -1 -19.40 59.70 99 -20.00 58.90 1 30 -20.00 58.90 TC 30 16 250
1981 SI MM 1981-02-01 00:00:00 TS -20.10 58.40 reunion 66 0 O_____O____O_O_ jtwc_sh SH131981 -20.20 58.20 30 -1 -19.90 58.80 99 9.90 -20.20 58.20 1 30 -20.20 58.20 TC 30 15 250
1981 SI MM 03:00:00 TS -20.40 57.60 0 0 P_____P____P_P_ SH131981 -20.40 57.60 30 -1 -20.50 57.80 99 -20.40 57.60 1 30 -20.40 57.60 TC 30 14 245
1981 SI MM 06:00:00 TS -20.70 57.00 reunion 38 38 O_____O____P_O_ jtwc_sh SH131981 -20.60 57.00 30 -1 -21.00 57.00 3 9.90 -20.60 57.10 1 30 -20.60 57.00 TC 30 12 245
1981 SI MM 09:00:00 TS -21.00 56.50 73 20 P_____P____P_P_ SH131981 -20.80 56.50 30 -1 -21.40 56.50 3 -20.80 56.50 1 30 -20.80 56.50 TC 30 12 240
1981 SI MM 12:00:00 TS -21.30 55.90 reunion 10 0 O_____O____O_O_ jtwc_sh SH131981 -21.10 55.90 30 -1 -21.80 56.00 99 9.90 -21.10 55.90 1 30 -21.10 55.90 TC 30 15 240
1981 SI MM 15:00:00 TS -21.70 55.10 49 49 P_____P____P_P_ SH131981 -21.50 55.00 30 -1 -22.30 55.40 99 -21.60 55.00 1 31 -21.50 55.00 TC 30 18 240
1981 SI MM 18:00:00 TS -22.20 54.30 reunion 144 144 O_____O____P_O_ jtwc_sh SH131981 -22.00 54.10 30 -1 -22.80 54.80 99 9.90 -22.10 54.10 1 33 -22.00 54.10 TC 30 19 235
1981 SI MM 21:00:00 TS -22.70 53.40 250 250 P_____P____P_P_ SH131981 -22.50 53.20 33 -1 -23.30 54.10 99 -22.60 53.20 1 34 -22.50 53.20 TC 33 18 235
1981 SI MM 1981-02-02 00:00:00 TS -23.20 52.60 reunion 349 349 O_____O____O_O_ jtwc_sh SH131981 -23.00 52.40 35 0 -23.90 53.30 99 9.90 -23.00 52.40 2 35 -23.00 52.40 TC 35 15 235
1981 SI MM 03:00:00 TS -23.60 52.10 417 400 P_____P____P_P_ SH131981 -23.30 51.90 35 0 -24.50 52.60 99 -23.30 51.80 2 35 -23.30 51.90 TC 35 11 235
1981 SI MM 06:00:00 TS -23.90 51.60 reunion 400 362 O_____O____P_O_ jtwc_sh SH131981 -23.50 51.50 35 0 -25.00 52.00 3 9.90 -23.50 51.40 2 35 -23.50 51.50 TC 35 9 245
1981 SI MM 09:00:00 TS -24.00 51.10 352 312 P_____P____P_P_ SH131981 -23.60 51.10 35 0 -25.10 51.40 3 -23.60 51.00 2 35 -23.60 51.10 TC 35 9 260
1981 SI MM 12:00:00 TS -24.00 50.70 reunion 312 263 O_____O____O_O_ jtwc_sh SH131981 -23.70 50.60 35 0 -25.00 50.90 99 9.90 -23.70 50.60 2 35 -23.70 50.60 TC 35 9 270
1981 SI MM 15:00:00 TS -24.00 50.10 253 204 P_____P____P_P_ SH131981 -23.80 50.10 35 0 -24.80 50.30 99 -23.80 50.10 2 36 -23.80 50.10 TC 35 10 275
1981 SI MM 18:00:00 TS -24.00 49.60 reunion 204 153 O_____O____P_O_ jtwc_sh SH131981 -23.80 49.50 35 0 -24.50 49.70 99 9.90 -23.80 49.60 2 38 -23.80 49.50 TC 35 10 275
1981 SI MM 21:00:00 TS -23.90 49.00 143 97 P_____P____P_P_ SH131981 -23.80 49.00 38 0 -24.30 49.30 99 -23.80 49.00 2 39 -23.80 49.00 TC 38 10 275
1981 SI MM 1981-02-03 00:00:00 TS -23.80 48.50 reunion 92 20 O_____O____O_O_ jtwc_sh SH131981 -23.80 48.30 40 0 -24.00 48.90 99 9.90 -23.80 48.30 2 40 -23.80 48.30 TC 40 13 275
1981 SI MM 03:00:00 TS -23.80 47.60 10 0 P_____P____P_P_ SH131981 -23.80 47.40 40 0 -23.60 48.20 99 -23.80 47.50 2 40 -23.80 47.40 TC 35 16 275
1981 SI MM 06:00:00 TS -23.80 46.70 reunion 0 0 O_____O____P_O_ jtwc_sh SH131981 -23.90 46.50 40 0 -23.40 47.40 3 9.90 -23.80 46.60 2 40 -23.90 46.50 TC 30 15 265
1981 SI MM 09:00:00 TS -23.90 46.00 0 0 P_____P____P_P_ SH131981 -23.90 45.70 40 0 -23.70 46.80 3 -23.90 45.70 2 40 -23.90 45.70 TC 28 14 260
1981 SI MM 12:00:00 TS -24.10 45.30 reunion 0 0 O_____O____O_O_ jtwc_sh SH131981 -24.00 45.00 40 0 -24.20 46.20 99 9.90 -24.00 45.00 2 40 -24.00 45.00 TC 25 11 250
1981 SI MM 15:00:00 TS -24.30 44.80 0 0 P_____P____P_P_ SH131981 -24.20 44.60 38 0 -24.60 45.70 99 -24.20 44.50 2 36 -24.20 44.60 TC 25 9 240
1981 SI MM 18:00:00 TS -24.50 44.50 reunion 0 0 O_____O____P_O_ jtwc_sh SH131981 -24.40 44.30 35 0 -24.90 45.20 99 9.90 -24.40 44.10 2 33 -24.40 44.30 TC 25 9 235
1981 SI MM 21:00:00 TS -24.70 44.10 0 0 P_____P____P_P_ SH131981 -24.60 43.90 30 -1 -25.10 44.60 99 -24.60 43.80 2 29 -24.60 43.90 TC 25 9 240
1981 SI MM 1981-02-04 00:00:00 TS -25.00 43.60 reunion 40 40 O_____O____O_O_ jtwc_sh SH131981 -24.90 43.50 25 -1 -25.20 44.00 99 9.90 -24.90 43.50 1 25 -24.90 43.50 TC 25 9 235
1981 SI MM 03:00:00 TS -25.20 43.20 83 83 P_____P____P_P_ SH131981 -25.10 43.10 23 -1 -25.50 43.40 99 -25.20 43.20 1 24 -25.10 43.10 TC 23 9 230
1981 SI MM 06:00:00 MX -25.60 42.80 reunion 137 137 O_____O____P_O_ jtwc_sh SH131981 -25.40 42.80 20 -1 -25.90 42.90 5 9.90 -25.40 42.80 1 23 -25.40 42.80 TC 20 11 230
1981 SI MM 09:00:00 MX -26.00 42.40 195 195 P_____P____P_P_ SH131981 -25.70 42.40 20 -1 -26.30 42.30 5 -25.70 42.40 1 21 -25.70 42.40 TC 20 12 225
1981 SI MM 12:00:00 TS -26.50 41.90 reunion 268 268 O_____O____O_O_ jtwc_sh SH131981 -26.00 42.00 20 -1 -26.80 41.80 99 9.90 -26.00 42.00 1 20 -26.00 42.00 TC 20 15 205
1981 SI MM 15:00:00 NR -27.30 41.60 351 351 ______P________ SH131981 -5 -27.30 41.60 99 1 TC 14 185
1981 SI MM 18:00:00 NR -27.80 41.80 reunion 380 380 ______O________ -5 -27.80 41.80 99 9.90 1 14 150
1981 SI MM 21:00:00 NR -28.40 42.40 398 398 ______P________ -5 -28.40 42.40 99 1 19 130
1981 SI MM 1981-02-05 00:00:00 NR -29.00 43.40 reunion 419 413 ______O________ -5 -29.00 43.40 99 9.90 20 115
1981 SI MM 03:00:00 NR -29.30 44.50 418 417 ______P________ -5 -29.30 44.50 99 20 105
1981 SI MM 06:00:00 TS -29.50 45.60 reunion 435 435 ______O________ -5 -29.50 45.60 3 9.90 16 105
1981 SI MM 09:00:00 TS -29.70 46.40 466 466 ______P________ -5 -29.70 46.40 3 13 110
1981 SI MM 12:00:00 NR -29.90 47.00 reunion 502 502 ______O________ -5 -29.90 47.00 99 9.90 13 115
1981 SI MM 15:00:00 NR -30.20 47.70 557 557 ______P________ -5 -30.20 47.70 99 15 125
1981 SI MM 18:00:00 NR -30.70 48.40 reunion 633 633 ______O________ -5 -30.70 48.40 99 9.90 17 130
1981 SI MM 21:00:00 NR -31.30 49.20 720 720 ______P________ -5 -31.30 49.20 99 20 135
1981 SI MM 1981-02-06 00:00:00 NR -32.10 50.00 reunion 830 830 ______O________ -5 -32.10 50.00 99 9.90 20 145
1981 SI MM 03:00:00 NR -33.00 50.60 945 945 ______P________ -5 -33.00 50.60 99 21 155
1981 SI MM 06:00:00 ET -34.00 51.00 reunion 1062 ______O________ -5 -34.00 51.00 5 9.90 21 160