This is the page for calculating the Accumulated cyclone energy for the 2024 Atlantic hurricane season. If any storms of a season happen to cross years, the storm's ACE counts for the previous year.^[1]

The ACE is calculated by summing the squares of the estimated maximum sustained velocity of every active tropical storm (wind speed 35 knots or higher), at six-hour intervals. The numbers are divided by 10,000 to make them more manageable. The unit of ACE is 10⁴ kt², and for use as an index the unit is assumed. Thus,

{\text{ACE}}=\sum _{}^{}{\frac {{v_{\mathrm {max} }}^{2}}{10^{4}}},

where v_max is estimated sustained wind speed in knots.

Operational (Advisories)

01L.Alberto

Adv.	Date	Time	Maximum Sustained Winds (kt)	ACE (10⁴ kt²)
1	17 June	4 pm CDT	35	Potential
2	17 June	10 pm CDT	35	Potential
3	18 June	4 am CDT	35	Potential
4	18 June	10 am CDT	35	Potential
5	18 June	4 pm CDT	35	Potential
6	18 June	10 pm CDT	35	Potential
7	19 June	4 am CDT	35	Potential
8	19 June	10 am CDT	35	0.1225
9	19 June	4 pm CDT	35	0.1225
10	19 June	10 pm CDT	45	0.2025
11	20 June	4 am CDT	45	0.2025
12	20 June	10 am CDT	30	0
13	20 June	4 pm CDT	25	0
Total				0.65

02L.Beryl

Adv.	Date	Time	Maximum Sustained Winds (kt)	ACE (10⁴ kt²)
1	28 June	5 pm AST	30	0
2	28 June	11 pm AST	35	0.1225
3	29 June	5 am AST	45	0.2025
4	29 June	11 am AST	55	0.3025
5	29 June	5 pm AST	65	0.4225
6	29 June	11 pm AST	75	0.5625
7	30 June	5 am AST	85	0.7225
8	30 June	11 am AST	105	1.1025
9	30 June	5 pm AST	115	1.3225
10	30 June	11 pm AST	115	1.3225
11	1 July	5 am AST	105	1.1025
12	1 July	11 am AST	120	1.4400
13	1 July	5 pm AST	130	1.6900
14	1 July	11 pm AST	140	1.9600
15	2 July	5 am AST	145	2.1025
16	2 July	11 am AST	140	1.9600
17	2 July	5 pm EDT	135	1.8225
18	2 July	11 pm EDT	130	1.6900
19	3 July	5 am EDT	125	1.5625
20	3 July	11 am EDT	125	1.5625
21	3 July	5 pm EDT	120	1.4400
22	3 July	11 pm EDT	115	1.3225
23	4 July	5 am EDT	105	1.1025
24	4 July	11 am EDT	100	1.0000
25	4 July	5 pm EDT	95	0.9025
26	4 July	10 pm CDT	100	1.0000
27	5 July	4 am CDT	95	0.9025
28	5 July	10 am CDT	75	0.5625
29	5 July	4 pm CDT	55	0.3025
30	5 July	10 pm CDT	50	0.2500
31	6 July	4 am CDT	50	0.2500
32	6 July	10 am CDT	50	0.2500
33	6 July	4 pm CDT	50	0.2500
34	6 July	10 pm CDT	50	0.2500
35	7 July	4 am CDT	50	0.2500
36	7 July	10 am CDT	55	0.3025
37	7 July	4 pm CDT	55	0.3025
38	7 July	10 pm CDT	60	0.3600
39	8 July	4 am CDT	70	0.4900
40	8 July	10 am CDT	60	0.3600
41	8 July	4 pm CDT	40	0.1600
42	8 July	10 pm CDT	30	0
Total				34.985

03L.Chris

Adv.	Date	Time	Maximum Sustained Winds (kt)	ACE (10⁴ kt²)
1	30 June	4 pm CDT	30	0
2	30 June	10 pm CDT	35	0.1225
3	1 July	4 am CDT	35	0.1225
4	1 July	10 am CDT	30	Remnants
Total				0.245

04L.Debby

Adv.	Date	Time	Maximum Sustained Winds (kt)	ACE (10⁴ kt²)
1	2 August	11 am AST	25	Potential TC
2	2 August	5 pm AST	25	Potential TC
3	2 August	11 pm AST	25	0
4	3 August	5 am AST	25	0
5	3 August	11 am AST	30	0
6	3 August	5 pm AST	35	0.1225
7	3 August	11 pm AST	40	0.1600
8	4 August	5 am AST	45	0.2025
9	4 August	11 am AST	55	0.3025
10	4 August	5 pm AST	55	0.3025
11	4 August	11 pm AST	65	0.4225
12	5 August	5 am AST	70	0.4900
13	5 August	11 am AST	60	0.3600
14	5 August	5 pm AST	45	0.2025
15	5 August	11 pm AST	40	0.1600
16	6 August	5 am AST	40	0.1600
17	6 August	11 am AST	35	0.1225
18	6 August	5 pm AST	35	0.1225
19	6 August	11 pm AST	35	0.1225
20	7 August	5 am AST	40	0.1600
21	7 August	11 am AST	50	0.2500
22	7 August	5 pm AST	50	0.2500
23	7 August	11 pm AST	50	0.2500
24	8 August	5 am AST	45	0.2025
25	8 August	11 am AST	35	0.1225
26	8 August	5 pm AST	30	0
Total				4.4875

05L.Ernesto

Adv.	Date	Time	Maximum Sustained Winds (kt)	ACE (10⁴ kt²)
1	11 August	5 pm AST	25	Potential TC
2	11 August	11 pm AST	25	Potential TC
3	12 August	5 am AST	25	Potential TC
4	12 August	11 am AST	30	Potential TC
5	12 August	5 pm AST	35	0.1225
6	12 August	11 pm AST	35	0.1225
7	13 August	5 am AST	35	0.1225
8	13 August	11 am AST	45	0.2025
9	13 August	5 pm AST	50	0.2500
10	13 August	11 pm AST	55	0.3025
11	14 August	5 am AST	60	0.3600
12	14 August	11 am AST	65	0.4225
13	14 August	5 pm AST	65	0.4225
14	14 August	11 pm AST	70	0.4900
15	15 August	5 am AST	75	0.5625
16	15 August	11 am AST	75	0.5625
17	15 August	5 pm AST	75	0.5625
18	15 August	11 pm AST	85	0.7225
19	16 August	5 am AST	85	0.7225
20	16 August	11 am AST	85	0.7225
21	16 August	5 pm AST	85	0.7225
22	16 August	11 pm AST	80	0.6400
Total				8.035

Totals

Storm	Type	ACE (10⁴ kt²)
01L (Alberto)	Operational	0.6500
02L (Beryl)	Operational	34.9850
03L (Chris)	Operational	0.2450
04L (Debby)	Operational	4.4875
05L (Ernesto)	Operational	8.0350
Total		48.4025

^ Stacy R. Stewart (January 6, 2006). Tropical Storm Zeta Discussion Number 30 (Report). National Hurricane Center. Retrieved May 17, 2020.

[1] Stacy R. Stewart (January 6, 2006). Tropical Storm Zeta Discussion Number 30 (Report). National Hurricane Center. Retrieved May 17, 2020.

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