IBTrACS Summary Statistics
- These statistics were generated using version v02r01
- Table 1 - Summary of data from each center
- Table 2 - Comparison of storm counts between IBTrACS and NHC+JTWC
- Table 3 - Comparison of numbers of severe storms using the minimum and maximum MSW from all centers
- Table 4 - Annual storm counts by basin for 1958-2007
Table 1
| Center | Period of record | # of storms | # of storms 1980-2005 | Unique storms |
|---|---|---|---|---|
| NHC (HURDAT) (N. Atlantic) |
1851-2008 | 1411 | 305 | 10 |
| NHC (HURDAT) (E. Pacific) |
1949-2008 | 841 | 435 | 0 |
| ATCF (N. Atl., E. Pac., C. Pac.) | 1851-2008 | 2546 | 884 | 257 |
| JTWC (E. Pacific) |
1949-2000 | 759 | 381 | 7 |
| CPHC | 1966-2003 | 166 | 121 | 17 |
| JTWC (C. Pacific) |
1950-2002 | 47 | 28 | 0 |
| JTWC (W. Pacific) |
1945-2008 | 1857 | 803 | 65 |
| JMA | 1951-2008 | 1537 | 686 | 6 |
| CMA/STI | 1949-2008 | 2073 | 812 | 279 |
| HKO | 1961-2008 | 1463 | 770 | 11 |
| JTWC (Indian O.) |
1945-2008 | 642 | 129 | 34 |
| IMD | 1990-2008 | 150 | 125 | 62 |
| JTWC (S. Hemisphere) |
1945-2008 | 1824 | 733 | 22 |
| Neumann | 1960-2007 | 1375 | 765 | 6 |
| BoM | 1907-2007 | 864 | 293 | 85 |
| FMS | 1992-2008 | 101 | 86 | 0 |
| MSNZ | 1968-2008 | 362 | 254 | 18 |
| MFLR | 1848-2008 | 1252 | 273 | 290 |
| DSI-9636 | 1842-1989 | 6726 | 799 | 2622 |
Table 2
| Basin | # of named storms 1966-1986 |
# of named storms 1987-2007 |
||
| NHC+JTWC | IBTrACS | NHC+JTWC | IBTrACS | |
| East Pacific Ocean | 356 | 358(+2) | 362 | 363 (+1) |
| West Pacific Ocean | 565 | 609(+44) | 606 | 625(+19) |
| North Atlantic Ocean | 203 | 203(0) | 284 | 284(0) |
| Southwest Pacific Ocean | 223 | 259(+36) | 220 | 253(+33) |
| North Indian Ocean | 62 | 63(+1) | 118 | 143(+25) |
| South Indian Ocean | 337 | 392(+55) | 368 | 398(+30) |
Table 3
| Basin | # of cat. 4/5 storms 1966-1986 |
# of cat. 4/5 storms 1987-2007 |
||
| IBTrACS Min | IBTrACS Max | IBTrACS Min | IBTrACS Max | |
| East Pacific Ocean | 34 | 45 | 58 | 63 |
| West Pacific Ocean | 72 | 141 | 20 | 170 |
| North Atlantic Ocean | 16 | 16 | 41 | 41 |
| Southwest Pacific Ocean | 3 | 11 | 13 | 35 |
| North Indian Ocean | 1 | 1 | 6 | 18 |
| South Indian Ocean | 12 | 21 | 36 | 78 |
Table 4
|
Table - IBTrACS number of TCs for 1979-2008 with maximum 10-minute sustained winds > 30 kt (56 kt). Southern Hemisphere seasons begin and end 6 months before that specified in column 1. Last column is not sum of previous columns since some storms cross basin boundaries. Only main storm tracks with no associated storms are counted. shading is determined by difference from mean (light=1 s.d. and dark=2 s.d.) | NH Season | NA | EP | WP | NI | SI | SP | SA | All |
|---|---|---|---|---|---|---|---|---|
| Sum | 364 (200) | 629 (364) | 783 (476) | 188 (55) | 517 (268) | 329 (164) | 1 (1) | 2569 (1371) |
| Average | 12.1 (6.7) | 21.0 (12.1) | 26.1 (15.9) | 6.3 (1.8) | 17.2 (8.9) | 11.0 (5.5) | 0.0 (0.0) | 85.6 (45.7) |
| Std Dev | 4.8 (2.8) | 4.9 (3.8) | 3.1 (3.3) | 2.5 (1.2) | 3.6 (2.6) | 3.9 (2.3) | 0.2 (0.2) | 8.6 (5.5) |
| Percent | 14.2 (14.6) | 24.5 (26.5) | 30.5 (34.7) | 7.3 (4.0) | 20.1 (19.5) | 12.8 (12.0) | 0.0 (0.1) | 100.0 (100.0) |
| 2008 | 17 (9) | 21 (8) | 27 (12) | 6 (1) | 19 (7) | 8 (4) | 0 (0) | 91 (40) |
| 2007 | 17 (7) | 17 (8) | 25 (15) | 6 (2) | 15 (11) | 11 (6) | 0 (0) | 84 (44) |
| 2006 | 10 (5) | 20 (12) | 23 (15) | 7 (2) | 16 (7) | 8 (6) | 0 (0) | 80 (43) |
| 2005 | 29 (15) | 19 (9) | 25 (15) | 10 (1) | 20 (9) | 13 (6) | 0 (0) | 108 (51) |
| 2004 | 15 (9) | 19 (12) | 31 (20) | 8 (3) | 17 (12) | 7 (4) | 1 (1) | 87 (52) |
| 2003 | 16 (7) | 22 (11) | 23 (16) | 5 (2) | 20 (11) | 14 (7) | 0 (0) | 90 (49) |
| 2002 | 12 (4) | 21 (11) | 27 (17) | 5 (0) | 17 (10) | 12 (2) | 0 (0) | 85 (39) |
| 2001 | 15 (9) | 19 (12) | 27 (19) | 5 (1) | 18 (9) | 11 (5) | 0 (0) | 85 (48) |
| 2000 | 15 (8) | 23 (8) | 26 (15) | 5 (2) | 20 (11) | 10 (6) | 0 (0) | 93 (47) |
| 1999 | 12 (8) | 10 (7) | 22 (7) | 6 (3) | 22 (9) | 14 (5) | 0 (0) | 82 (36) |
| 1998 | 14 (10) | 16 (10) | 19 (10) | 13 (5) | 16 (5) | 23 (12) | 0 (0) | 90 (46) |
| 1997 | 9 (4) | 29 (17) | 28 (18) | 8 (2) | 19 (10) | 16 (9) | 0 (0) | 94 (49) |
| 1996 | 13 (9) | 19 (13) | 27 (15) | 8 (4) | 22 (14) | 9 (4) | 0 (0) | 84 (48) |
| 1995 | 19 (11) | 18 (11) | 23 (10) | 8 (2) | 16 (10) | 6 (4) | 0 (0) | 78 (43) |
| 1994 | 8 (4) | 23 (12) | 31 (18) | 6 (2) | 23 (14) | 4 (3) | 0 (0) | 88 (48) |
| 1993 | 9 (4) | 20 (13) | 31 (20) | 3 (2) | 17 (4) | 12 (7) | 0 (0) | 82 (44) |
| 1992 | 8 (5) | 37 (24) | 27 (19) | 12 (3) | 14 (7) | 12 (8) | 0 (0) | 94 (53) |
| 1991 | 8 (4) | 22 (16) | 28 (20) | 5 (1) | 13 (9) | 5 (4) | 0 (0) | 71 (46) |
| 1990 | 15 (8) | 25 (20) | 29 (21) | 6 (1) | 18 (9) | 7 (2) | 0 (0) | 91 (56) |
| 1989 | 13 (9) | 22 (9) | 33 (20) | 3 (1) | 13 (9) | 14 (6) | 0 (0) | 89 (49) |
| 1988 | 11 (5) | 17 (10) | 27 (13) | 5 (1) | 11 (5) | 5 (2) | 0 (0) | 72 (32) |
| 1987 | 7 (3) | 22 (12) | 25 (18) | 10 (2) | 12 (6) | 12 (7) | 0 (0) | 82 (42) |
| 1986 | 6 (4) | 20 (13) | 27 (16) | 2 (0) | 18 (9) | 9 (5) | 0 (0) | 78 (43) |
| 1985 | 11 (7) | 24 (13) | 26 (16) | 8 (3) | 22 (12) | 17 (8) | 0 (0) | 102 (56) |
| 1984 | 13 (5) | 24 (16) | 26 (15) | 5 (2) | 22 (11) | 11 (5) | 0 (0) | 95 (50) |
| 1983 | 4 (3) | 26 (16) | 21 (12) | 5 (0) | 11 (7) | 14 (10) | 0 (0) | 74 (44) |
| 1982 | 6 (2) | 26 (14) | 25 (19) | 5 (2) | 19 (6) | 9 (5) | 0 (0) | 84 (46) |
| 1981 | 12 (7) | 17 (9) | 27 (15) | 4 (3) | 20 (9) | 13 (5) | 0 (0) | 88 (46) |
| 1980 | 11 (9) | 19 (11) | 24 (16) | 3 (0) | 17 (11) | 11 (3) | 0 (0) | 79 (46) |
| 1979 | 9 (6) | 12 (7) | 23 (14) | 6 (2) | 10 (5) | 12 (4) | 0 (0) | 69 (35) |
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Downloaded Tuesday, 24-Nov-2009 03:57:26 EST
Last Updated Friday, 29-May-2009 14:48:06 EDT by ncdc.webmaster@noaa.gov
Please see the NCDC Contact Page if you have questions or comments.