Format of RSMC Best Track Data
1 Header Line for Each Tropical Cyclone
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 ::::+::::|::::+::::|::::+::::|::::+::::|::::+::::|::::+::::|::::+::::|::::+::::| AAAAA BBBB CCC DDDD EEEE F G HHHHHHHHHHHHHHHHHHHH IIIIIIII
Sample: 66666 9119 150 0045 9119 0 6 MIRREILE 19920701
AAAAA 5 columns <Indicator> '66666' BBBB 4 columns <International number ID> Last two digits of calendar year followed by 2-digit serial number ID of the storm of Tropical Storm (TS) intensity or greater CCC 3 columns <Number of data lines> DDDD 4 columns <Tropical cyclone number ID> Serial number ID of the storm of intensity with maximum sustained wind speed of 28 kt (near gale) or greater EEEE 4 columns <International number ID> Replicate BBBB F 1 column <Flag of the last data line> 0 : Dissipation 1 : Going out of the responsible area of RSMC Tokyo-Typhoon Center G 1 column <Difference between the time of the last data and the time of the final analysis> Unit : hour H...H 20 columns <Name of the storm> I...I 8 columns <Date of the latest revision>
2 Data Lines
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 ::::+::::|::::+::::|::::+::::|::::+::::|::::+::::|::::+::::|::::+::::|::::+::::| AAAAAAAA BBB C DDD EEEE FFFF GGG HIIII JJJJ KLLLL MMMM P
Sample: 91092706 002 5 325 1293 935 095 30180 0140 30400 0260 #
A...A 8 columns <Time of analysis> yymmddhh (UTC) BBB 3 columns <Indicator> '002' C 1 column <Grade> 1 : Not used 2 : Tropical Depression (TD) 3 : Tropical Storm (TS) 4 : Severe Tropical Storm (STS) 5 : Typhoon (TY) 6 : Extra-tropical Cyclone (L) 7 : Just entering into the responsible area of RSMC Tokyo-Typhoon Center 8 : Not used 9 : Tropical Cyclone of TS intensity or higher DDD 3 columns <Latitude of the center> Unit : 0.1 degree EEEE 4 columns <Longitude of the center> Unit : 0.1 degree FFFF 4 columns <Central pressure> Unit : hPa GGG 3 columns <Maximum sustained wind speed> Unit : knot (kt) H 1 column <Direction of the longest radius of 50kt winds or greater> 0 : No direction (Longest radius of 50kt winds is 0) 1 : Northeast (NE) 2 : East (E) 3 : Southeast (SE) 4 : South (S) 5 : Southwest (SW) 6 : West (W) 7 : Northwest (NW) 8 : North (N) 9 : (symmetric circle) IIII 4 columns <The longest radius of 50kt winds or greater> Unit : nautical mile (nm) JJJJ 4 columns <The shortest radius of 50kt winds or greater> Unit : nautical mile (nm) K 1 column <Direction of the longest radius of 30kt winds or greater> 0 : No direction (Longest radius of 30kt winds is 0) 1 : Northeast (NE) 2 : East (E) 3 : Southeast (SE) 4 : South (S) 5 : Southwest (SW) 6 : West (W) 7 : Northwest (NW) 8 : North (N) 9 : (symmetric circle) LLLL 4 columns <The longest radius of 30kt winds or greater> Unit : nautical mile (nm) MMMM 4 columns <The shortest radius of 30kt winds or greater> Unit : nautical mile (nm) P 1 column <Indicator of landfall or passage> Landfall or passage over the Japanese islands occurred within one hour after the time of the analysis with this indicator.
(All data are recorded in the ASCII code.)