Sep 3 and storms brought to you by the letter I

[senorpepr]

It didn't quite make August's marathon, but here's Ivan... Up next is Jeanne, Karl, and Lisa.

Below is a breakdown of what storms were active on Sep 03 between 1954 and 2003. (Note: storm numbers in parenthesis had been finalled out by NHC prior to Sep 03) If applicable, there is a listing of what date the "I" storm developed on. At the end the list is the 50 year average ('54-'03).

Please Note: Number represents the number of storms (excluding subtropical storms) thus far in the season. The start dates of the I-storm are when these systems were tropical depressions.

Active Storms on September 3, followed by the date the I-storm formed.

03 8; Sep 06
02 4, 5; Sep 14
01 5; Oct 04
00 5; Sep 21
99 4, (5); Oct 12
98 4, 5; Sep 19
97 5; n/a
96 5, 6, (7), 8; Sep 24
95 9, (10), 11, 12; Aug 22
94 (3); n/a
93 5; n/a
92 (1); n/a
91 2; n/a
90 7, (8); Sep 04
89 6, 7; Sep 16
88 4, 5; Sep 28
87 (2); n/a
86 (3); n/a
85 5; Oct 07
84 1, 2, (3); Sep 25
83 (2); n/a
82 2; n/a
81 5, 6; Sep 21
80 (3); Oct 01
79 4, (5), 6; n/a
78 5; Oct 02
77 1, 2; n/a
76 5, 6; n/a
75 4; n/a
74 3, 4; n/a
73 3, 4; n/a
72 3; n/a
71 6; Sep 11
70 (4); n/a
69 6; Sep 20
68 (4); n/a
67 1; n/a
66 6, 7; Sep 21
65 2; n/a
64 3, 4; Oct 08
63 (2); n/a
62 (2); n/a
61 2, 3; Nov 05
60 4; n/a
59 (5); Oct 06
58 5; Sep 24
57 3; n/a
56 (2); n/a
55 5, 6; Sep 10
54 4, 5; n/a

====
Average # of TS on Sep 03: 04.40 ('04: above average by 4.60 TSs)
Average Date for I-storm*: Sep 25 ('04: ahead of schedule by 22 days)

* I-storm occurred 48% of the time in the past 50 years.

Note: The following "30-yr averages" encompass the years 2003-1974

TS YTD vs 30yr Seasonal Average: 9 vs 9.97 (-0.97)
HR YTD vs 30yr Seasonal Average: 4 vs 5.83 (-1.83)
MHR YTD vs 30yr Seasonal Average: 3 vs 2.20 (+0.80)

[senorpepr]

2003 Super Hurricane (5) Isabel* (Hit NC, VA)
2002 Hurricane (3) Isidore* (Hit Guyana, Venezuela, Jamaica, Yucatan, LA, MS)
2001 Hurricane (4) Iris* (Hit Lesser Antilles, Central America)
2000 Hurricane (4) Isaac (Hit UK)
1999 Hurricane (2) Irene (Hit Cuba, FL, Skirted US SE Coast)
1998 Hurricane (1) Ivan (Skirted Azores)
1997 None
1996 Hurricane (3) Isidore (Fish)
1995 Hurricane (3) Iris (Fish)
1994 None
1993 None
1992 None
1991 None
1990 Hurricane (2) Isidore (Fish)
1989 Tropical Storm Iris (Fish)
1988 Tropical Storm Isaac (Hit Srn Lesser Antilles)
1987 None
1986 None
1985 Tropical Storm Isabel (Hit Hispaniola, GA)
1984 Tropical Storm Isidore (Hit Bahamas, FL, GA, Skirted SC)
1983 None
1982 None
1981 Hurricane (3) Irene (Fish)
1980 Hurricane (2) Ivan (Fish)
1979 None
1978 Tropical Storm Irma (Hit Azores)
1977 None
1976 None
1975 None
1974 None
1973 None
1972 None
1971 Hurricane (1) Irene (Hit Srn Lesser Antilles, Cntrl America)
1970 None
1969 Hurricane (3) Inga (Fish)
1968 None
1967 None
1966 Super Hurricane (4) Inez* (Hit Lesser/Greater Antilles, Bahamas, FL, Yucatan, Mexico)
1965 None
1964 Hurricane (3) Isbell (Hit Cuba, FL, NC)
1963 None
1962 None
1961 Tropical Storm Inga (Srn Gulf of Mexico)
1960 None
1959 Tropical Storm Irene (Hit FL)
1958 Hurricane (4) Ilsa (Fish)
1957 None
1956 None
1955 Hurricane (3) Ione* (Hit NC, Newfoundland)
1954 None

"I" names in the past...
34% became category one hurricanes
30% became category two hurricanes
24% became category three hurricanes
10% became category four hurricanes
02% became category five hurricanes

(Names with asterisk denotes retired name)