2004 Eastern Pacific Hurricane Season

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2004 Eastern Pacific Hurricane Season

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The National Hurricane Center's Tropical Cyclone Reports contain comprehensive information on each tropical cyclone, including synoptic history, meteorological statistics, casualties and damages, and the post-analysis best track (six-hourly positions and intensities). Tropical cyclones include depressions, storms and hurricanes. Tropical depressions listed below are those that did not reach tropical storm strength.

XML index of all Tropical Cyclone Reports

Tropical Storm Agatha – PDF
Tropical Depression Two-E – PDF
Tropical Storm Blas – PDF
Hurricane Celia – PDF
Hurricane Darby – PDF
Tropical Depression Six-E – PDF
Tropical Storm Estelle – PDF
Hurricane Frank – PDF
Tropical Depression Nine-E – PDF
Tropical Storm Georgette – PDF
Hurricane Howard – PDF
Hurricane Isis – PDF
Hurricane Javier – PDF
Tropical Storm Kay – PDF
Tropical Storm Lester – PDF
Tropical Depression Sixteen-E – PDF

East Pacific Tropical Weather Summary (2004)

Storm Number	Storm Name	Type^a	Dates^b (UTC)	Max. Winds (kt)	Min. Pressure (mb)	Accumulated Cyclone Energy^c (x10⁴ kt²)
1	Unnamed	TS	22 May–24 May	50	997	1.1
2	Unnamed	TD	02 Jul–03 Jul	30	1007	0.0
3	Unnamed	TS	12 Jul–15 Jul	55	991	1.6
4	Unnamed	HU	19 Jul–25 Jul	75	981	5.1
5	Unnamed	MH	26 Jul–01 Aug	105	957	9.0
6	Unnamed	TD	01 Aug–02 Aug	25	1008	0.0
7	Unnamed	TS^	19 Aug–24 Aug	60^	989^	0.8
8	Unnamed	HU	23 Aug–26 Aug	75	979	3.7
9	Unnamed	TD	23 Aug–26 Aug	30	1005	0.0
10	Unnamed	TS	26 Aug–30 Aug	55	995	2.9
11	Unnamed	MH	30 Aug–05 Sep	120	943	12.5
12	Unnamed	HU	08 Sep–16 Sep	65	987	4.9
13	Unnamed	MH	10 Sep–19 Sep	130	930	27.0
14	Unnamed	TS	04 Oct–06 Oct	40	1004	0.3
15	Unnamed	TS	11 Oct–13 Oct	45	1000	0.5
16	Unnamed	TD	25 Oct–26 Oct	30	1004	0.0

^ Peak Intensity Reached Outside of East Pacific

2004 East Pacific Summary
Named Storms (vs 1991-2020 Normal)	Hurricanes (vs 1991-2020 Normal)	Major Hurricanes (vs 1991-2020 Normal)	Total ACE (x10⁴ kt²) (% Difference of 1991-2020 Normal)	Total Direct Deaths	Total U.S. Damage^e ($million)
12 (-3)	6 (-2)	3 (-1)	69.3 (-36% )	0	0

^a Tropical depression (TD) or Subtropical Depression (SD), maximum sustained winds 33 kt or less; tropical storm (TS) or Subtropical Storm (SS), winds 34-63 kt; hurricane (HU), winds 64-95 kt; major hurricane (MH), winds 96 kt or higher.

^b Dates begin at 0000 UTC and include all tropical and subtropical cyclone stages; non-tropical stages are excluded except for PTCs which have no tropical stages.

^c Accumulated Cyclone Energy is an index that is defined as the sum of the squares of the maximum sustained surface wind speed (knots) measured every six hours for all named storms while they are at least tropical storm intensity. Note the ACE total in this table is only for the basin being summarized (e.g., 140°W–180° in the Central Pacific).

^d Deaths occurring as a direct result of the forces of the tropical cyclone are referred to as “direct” deaths. These would include those persons who drowned in storm surge, rough seas, rip currents, and freshwater floods. Direct deaths also include casualties resulting from lightning and wind-related events (e.g., collapsing structures).

^e U.S. damage totals are based on values provided by the NOAA National Centers for Environmental Information (NCEI).

Last updated: August 11, 2025

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