1974 Tropical Storm HELGA (1974222N13251)


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

Summary Information

Storm ID 1974222N13251
Start Aug 10 00Z
Max Intensity 40 kt (Aug 11 18Z)
End Aug 13 12Z
ATCF IDs EP081974
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 WMO WIND USA WIND DS824 WIND TD9636 WIND
degrees north degrees east kts kts kts kts
EP 1974-08-10 00:00:00 TS 13.06 -109.36 25 25 25 30
EP 03:00:00 TS 13.35 -110.40 25 25 30
EP 06:00:00 TS 13.61 -111.38 25 25 25 30
EP 09:00:00 TS 13.83 -112.25 25 25 30
EP 12:00:00 TS 14.00 -113.00 25 25 25 30
EP 15:00:00 TS 14.16 -113.64 30 30 31
EP 18:00:00 TS 14.29 -114.20 35 35 35 32
EP 21:00:00 TS 14.40 -114.76 35 35 33
EP 1974-08-11 00:00:00 TS 14.50 -115.30 35 35 35 35
EP 03:00:00 TS 14.60 -115.86 35 35 35
EP 06:00:00 TS 14.70 -116.40 35 35 35 35
EP 09:00:00 TS 14.81 -116.91 35 35 35
EP 12:00:00 TS 14.90 -117.40 35 35 35 35
EP 15:00:00 TS 14.96 -117.91 37 37 36
EP 18:00:00 TS 15.00 -118.40 40 40 40 37
EP 21:00:00 TS 15.03 -118.87 40 40 38
EP 1974-08-12 00:00:00 TS 15.10 -119.30 40 40 40 40
EP 03:00:00 TS 15.23 -119.67 37 37 38
EP 06:00:00 TS 15.40 -120.02 35 35 35 37
EP 09:00:00 TS 15.56 -120.41 35 35 36
EP 12:00:00 TS 15.70 -120.80 35 35 35 35
EP 15:00:00 TS 15.81 -121.16 32 32 33
EP 18:00:00 TS 15.91 -121.51 30 30 30 32
EP 21:00:00 TS 16.02 -121.90 27 27 31
EP 1974-08-13 00:00:00 TS 16.10 -122.30 25 25 25 30
EP 03:00:00 TS 16.13 -122.69 25 25 30
EP 06:00:00 TS 16.12 -123.08 25 25 25 30
EP 09:00:00 TS 16.10 -123.50 25 25 30
EP 12:00:00 TS 16.06 -123.94 25 25 25 30

Source Information

Agency Information
USA hurdat2-nepac-1949-2018-071519.txt:Line=5973:HELGA
TOKYO
CMA
HKO
NEWDELHI
REUNION
BOM
NADI
WELLINGTON
DS824 e_npac.dat:280:HELGA
TD9636 cons_worldwide_trop_cyclone_18710101-19891231-002:Line=3059
TD9635
NEUMANN
MLC

All available IBTrACS Data

SEASON BASIN SUBBASIN ISO_TIME_________ NATURE LAT LON WMO WIND WMO AGENCY DIST2LAND LANDFALL IFLAG USA AGENCY USA ATCF_ID USA LAT USA LON USA STATUS USA WIND USA SSHS DS824 LAT DS824 LON DS824 STAGE DS824 WIND TD9636 LAT TD9636 LON TD9636 STAGE TD9636 WIND STORM SPEED STORM DIR
Year degrees north degrees east kts km km degrees north degrees east kts 1 degrees north degrees east kts degrees north degrees east kts kts degrees
1974 EP MM 1974-08-10 00:00:00 TS 13.06 -109.36 25 hurdat_epa 841 841 O________OO___ hurdat_epa EP081974 13.00 -109.10 TD 25 -1 13.00 -109.10 TC 25 13.30 -110.40 1 30 21 286
1974 EP MM 03:00:00 TS 13.35 -110.40 882 882 P________PP___ EP081974 13.32 -110.24 TD 25 -1 13.32 -110.24 TC 25 13.49 -111.06 1 30 21 286
1974 EP MM 06:00:00 TS 13.61 -111.38 25 hurdat_epa 941 941 O________OP___ hurdat_epa EP081974 13.60 -111.30 TD 25 -1 13.60 -111.30 TC 25 13.67 -111.72 1 30 19 285
1974 EP MM 09:00:00 TS 13.83 -112.25 995 995 P________PP___ EP081974 13.82 -112.23 TD 25 -1 13.82 -112.23 TC 25 13.84 -112.37 1 30 16 284
1974 EP MM 12:00:00 TS 14.00 -113.00 25 hurdat_epa 1038 1038 O________OO___ hurdat_epa EP081974 14.00 -113.00 TD 25 -1 14.00 -113.00 TC 25 14.00 -113.00 1 30 14 284
1974 EP MM 15:00:00 TS 14.16 -113.64 1044 1044 P________PP___ EP081974 14.16 -113.65 TD 30 -1 14.16 -113.65 TC 30 14.14 -113.60 1 31 12 284
1974 EP MM 18:00:00 TS 14.29 -114.20 35 hurdat_epa 1058 1058 O________OP___ hurdat_epa EP081974 14.30 -114.20 TS 35 0 14.30 -114.20 TC 35 14.27 -114.19 1 32 11 283
1974 EP MM 21:00:00 TS 14.40 -114.76 1076 1076 P________PP___ EP081974 14.41 -114.76 TS 35 0 14.41 -114.76 TC 35 14.39 -114.75 1 33 11 281
1974 EP MM 1974-08-11 00:00:00 TS 14.50 -115.30 35 hurdat_epa 1092 1092 O________OO___ hurdat_epa EP081974 14.50 -115.30 TS 35 0 14.50 -115.30 TC 35 14.50 -115.30 2 35 11 281
1974 EP MM 03:00:00 TS 14.60 -115.86 1116 1116 P________PP___ EP081974 14.60 -115.86 TS 35 0 14.60 -115.86 TC 35 14.61 -115.85 2 35 11 281
1974 EP MM 06:00:00 TS 14.70 -116.40 35 hurdat_epa 1137 1137 O________OP___ hurdat_epa EP081974 14.70 -116.40 TS 35 0 14.70 -116.40 TC 35 14.72 -116.38 2 35 10 281
1974 EP MM 09:00:00 TS 14.81 -116.91 1160 1160 P________PP___ EP081974 14.81 -116.91 TS 35 0 14.81 -116.91 TC 35 14.82 -116.90 2 35 10 281
1974 EP MM 12:00:00 TS 14.90 -117.40 35 hurdat_epa 1185 1185 O________OO___ hurdat_epa EP081974 14.90 -117.40 TS 35 0 14.90 -117.40 TC 35 14.90 -117.40 2 35 10 279
1974 EP MM 15:00:00 TS 14.96 -117.91 1212 1212 P________PP___ EP081974 14.96 -117.91 TS 37 0 14.96 -117.91 TC 37 14.95 -117.91 2 36 10 276
1974 EP MM 18:00:00 TS 15.00 -118.40 40 hurdat_epa 1248 1248 O________OP___ hurdat_epa EP081974 15.00 -118.40 TS 40 0 15.00 -118.40 TC 40 14.98 -118.40 2 37 9 275
1974 EP MM 21:00:00 TS 15.03 -118.87 1286 1286 P________PP___ EP081974 15.03 -118.87 TS 40 0 15.03 -118.87 TC 40 15.03 -118.86 2 38 9 277
1974 EP MM 1974-08-12 00:00:00 TS 15.10 -119.30 40 hurdat_epa 1309 1309 O________OO___ hurdat_epa EP081974 15.10 -119.30 TS 40 0 15.10 -119.30 TC 40 15.10 -119.30 2 40 8 285
1974 EP MM 03:00:00 TS 15.23 -119.67 1325 1316 P________PP___ EP081974 15.23 -119.66 TS 37 0 15.23 -119.66 TC 37 15.23 -119.70 2 38 8 293
1974 EP MM 06:00:00 TS 15.40 -120.02 35 hurdat_epa 1326 1324 O________OP___ hurdat_epa EP081974 15.40 -120.00 TS 35 0 15.40 -120.00 TC 35 15.38 -120.08 2 37 8 294
1974 EP MM 09:00:00 TS 15.56 -120.41 1335 1335 P________PP___ EP081974 15.56 -120.40 TS 35 0 15.56 -120.40 TC 35 15.55 -120.44 2 36 8 292
1974 EP MM 12:00:00 TS 15.70 -120.80 35 hurdat_epa 1354 1354 O________OO___ hurdat_epa EP081974 15.70 -120.80 TS 35 0 15.70 -120.80 TC 35 15.70 -120.80 2 35 8 290
1974 EP MM 15:00:00 TS 15.81 -121.16 1374 1373 P________PP___ EP081974 15.81 -121.15 TS 32 -1 15.81 -121.15 TC 32 15.82 -121.18 2 33 7 287
1974 EP MM 18:00:00 TS 15.91 -121.51 30 hurdat_epa 1387 1387 O________OP___ hurdat_epa EP081974 15.90 -121.50 TD 30 -1 15.90 -121.50 TC 30 15.93 -121.56 2 32 7 286
1974 EP MM 21:00:00 TS 16.02 -121.90 1409 1409 P________PP___ EP081974 16.01 -121.89 TD 27 -1 16.01 -121.89 TC 27 16.02 -121.93 2 31 8 284
1974 EP MM 1974-08-13 00:00:00 TS 16.10 -122.30 25 hurdat_epa 1431 1431 O________OO___ hurdat_epa EP081974 16.10 -122.30 TD 25 -1 16.10 -122.30 TC 25 16.10 -122.30 1 30 8 279
1974 EP MM 03:00:00 TS 16.13 -122.69 1462 1462 P________PP___ EP081974 16.12 -122.69 TD 25 -1 16.12 -122.69 TC 25 16.16 -122.66 1 30 8 272
1974 EP MM 06:00:00 TS 16.12 -123.08 25 hurdat_epa 1493 1493 O________OP___ hurdat_epa EP081974 16.10 -123.10 TD 25 -1 16.10 -123.10 TC 25 16.22 -123.01 1 30 8 267
1974 EP MM 09:00:00 TS 16.10 -123.50 1525 1525 P________PP___ EP081974 16.06 -123.54 TD 25 -1 16.06 -123.54 TC 25 16.26 -123.36 1 30 8 266
1974 EP MM 12:00:00 TS 16.06 -123.94 25 hurdat_epa 1558 O________OO___ hurdat_epa EP081974 16.00 -124.00 TD 25 -1 16.00 -124.00 TC 25 16.30 -123.70 1 30 8 265