Talk:2024 Pacific hurricane season/ACE calcs

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

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)

01E.Aletta

Adv.	Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
1	4 July	9 am CST	30	0
2	4 July	2 pm MST	35	0.1225
3	4 July	8 pm MST	35	0.1225
4	5 July	2 am MST	30	0
5	5 July	8 am MST	30	0
6	5 July	2 pm MST	25	0
7	5 July	8 pm MST	25	Remnants
Total				0.245

02E.Bud

Adv.	Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
1	24 July	2 pm PDT	35	0.1225
2	24 July	8 pm PDT	35	0.1225
3	25 July	2 am PDT	40	0.1600
4	25 July	430 am PDT	50	Special
5	25 July	2 pm PDT	50	0.2500
6	25 July	2 pm PDT	50	0.2500
7	25 July	8 pm PDT	45	0.2025
8	26 July	2 am PDT	35	0.1225
9	26 July	8 am PDT	35	0.1225
10	26 July	2 pm PDT	30	Remnants
Total				1.3525

03E.Carlotta

Adv.	Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
1	31 July	8 am MST	30	0
2	31 July	2 pm MST	40	0.1600
3	31 July	8 pm MST	45	0.2025
4	1 August	2 am MST	50	0.2500
5	1 August	8 am MST	50	0.2500
6	1 August	2 pm MST	55	0.3025
7	1 August	8 pm MST	55	0.3025
8	2 August	2 am MST	60	0.3600
9	2 August	8 am PDT	70	0.4900
10	2 August	2 pm PDT	75	0.5625
11	2 August	8 pm PDT	75	0.5625
12	3 August	2 am PDT	80	0.6400
13	3 August	8 am PDT	80	0.6400
14	3 August	2 pm PDT	75	0.5625
15	3 August	8 pm PDT	70	0.4900
16	4 August	2 am PDT	60	0.3600
17	4 August	8 am PDT	55	0.3025
18	4 August	2 pm PDT	50	0.2500
19	4 August	8 pm PDT	45	0.2025
20	5 August	2 am PDT	40	0.1600
21	5 August	8 am PDT	40	0.1600
22	5 August	2 pm PDT	35	0.1225
23	5 August	8 pm PDT	35	Post-Trop.
Total				7.3325

04E.Daniel

Adv.	Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
1	3 August	8 am PDT	35	0.1225
2	3 August	2 pm PDT	35	0.1225
3	3 August	8 pm PDT	35	0.1225
4	4 August	2 am PDT	35	0.1225
5	4 August	8 am PDT	35	0.1225
6	4 August	2 pm PDT	35	0.1225
7	4 August	8 pm PDT	35	0.1225
8	5 August	2 am PDT	35	0.1225
9	5 August	8 am PDT	35	0.1225
10	5 August	2 pm PDT	30	0
11	5 August	8 pm PDT	25	Remnants
Total				1.1025

05E.Emilia

Adv.	Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
1	4 August	8 am MST	30	0
2	4 August	2 pm MST	30	0
3	4 August	8 pm MST	35	0.1225
4	5 August	2 am MST	35	0.1225
5	5 August	8 am MST	40	0.1600
6	5 August	2 pm MST	45	0.2025
7	5 August	8 pm MST	45	0.2025
8	6 August	2 am PDT	55	0.3025
9	6 August	8 am PDT	55	0.3025
10	6 August	2 pm PDT	55	0.3025
11	6 August	8 pm PDT	55	0.3025
12	7 August	2 am PDT	55	0.3025
13	7 August	8 am PDT	60	0.3600
14	7 August	2 pm PDT	55	0.3025
15	7 August	8 pm PDT	50	0.2500
16	8 August	2 am PDT	35	0.1225
17	8 August	8 am PDT	35	0.1225
18	8 August	2 pm PDT	35	0.1225
19	8 August	8 pm PDT	30	Remnants
Total				3.6025

06E.Fabio

Adv.	Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
1	5 August	8 am MST	35	0.1225
2	5 August	2 pm MST	35	0.1225
3	5 August	8 pm MST	45	0.2025
4	6 August	2 am MST	55	0.3025
5	6 August	8 am MST	55	0.3025
6	6 August	2 pm MST	50	0.2500
7	6 August	8 pm PDT	45	0.2025
8	7 August	2 am PDT	40	0.1600
9	7 August	8 am PDT	40	0.1600
10	7 August	2 pm PDT	35	Post-Trop.
Total				1.6225

07E.Gilma

Adv.	Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
1	18 August	8 am MST	30	0
2	18 August	2 pm MST	35	0.1225
3	18 August	8 pm MST	35	0.1225
4	19 August	2 am MST	45	0.2025
5	19 August	8 am PDT	45	0.2025
6	19 August	2 pm PDT	50	0.2500
7	19 August	8 pm PDT	50	0.2500
8	20 August	2 am PDT	45	0.2025
9	20 August	8 am PDT	45	0.2025
10	20 August	2 pm PDT	55	0.3025
11	20 August	8 pm PDT	60	0.3600
12	21 August	2 am PDT	65	0.4225
13	21 August	8 am PDT	75	0.5625
14	21 August	2 pm PDT	90	0.8100
15	21 August	8 pm PDT	95	0.9025
16	22 August	2 am PDT	100	1.0000
17	22 August	5 am HST	110	1.2100
18	22 August	11 am HST	110	1.2100
19	22 August	5 pm HST	105	1.1025
20	22 August	11 pm HST	105	1.1025
21	23 August	5 am HST	100	1.0000
22	23 August	11 am HST	90	0.8100
23	23 August	5 pm HST	90	0.8100
24	23 August	11 pm HST	85	0.7225
25	24 August	5 am HST	80	0.6400
26	24 August	11 am HST	95	0.9025
27	24 August	2 pm HST	105	Special
28	24 August	5 pm HST	110	1.2100
29	24 August	11 pm HST	115	1.3225
30	25 August	5 am HST	110	1.2100
31	25 August	11 am HST	100	1.0000
32	25 August	5 pm HST	90	0.8100
33	25 August	11 pm HST	85	0.7225
34	26 August	5 am HST	90	0.8100
35	26 August	11 am HST	95	0.9025
36	26 August	5 pm HST	95	0.9025
37	26 August	11 pm HST	90	0.8100
Total				25.125

Central Pacific

Adv.	Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
38	27 August	5 am HST	65	0.4225
39	27 August	11 am HST	55	0.3025
40	27 August	5 pm HST	45	0.2025
41	27 August	11 pm HST	45	0.2025
42	28 August	5 am HST	40	0.1600
43	28 August	11 am HST	40	0.1600
44	28 August	5 pm HST	35	0.1225
45	28 August	11 pm HST	35	0.1225
46	29 August	5 am HST	30	0
47	29 August	11 am HST	30	0
48	29 August	5 pm HST	25	Remnants
Total				1.695

01C.Hone

Adv.	Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
1	22 August	5 am HST	30	0
2	22 August	11 am HST	35	0.1225
3	22 August	5 pm HST	35	0.1225
4	22 August	11 pm HST	40	0.1600
5	23 August	5 am HST	40	0.1600
6	23 August	11 am HST	45	0.2025
7	23 August	5 pm HST	45	0.2025
8	23 August	11 pm HST	50	0.2500
8A	24 August	2 am HST	55	Special
9	24 August	5 am HST	55	0.3025
9A	24 August	8 am HST	55	Special
10	24 August	11 am HST	55	0.3025
11	24 August	5 pm HST	55	0.3025
12	24 August	11 pm HST	65	0.4225
13	25 August	5 am HST	75	0.5625
14	25 August	11 am HST	70	0.4900
15	25 August	5 pm HST	65	0.4225
16	25 August	11 pm HST	60	0.3600
17	26 August	5 am HST	55	0.3025
18	26 August	11 am HST	55	0.3025
19	26 August	5 pm HST	50	0.2500
20	26 August	11 pm HST	50	0.2500
21	27 August	5 am HST	45	0.2025
22	27 August	11 am HST	45	0.2025
23	27 August	5 pm HST	45	0.2025
24	27 August	11 pm HST	45	0.2025
25	28 August	5 am HST	45	0.2025
26	28 August	11 am HST	45	0.2025
27	28 August	5 pm HST	45	0.2025
28	28 August	11 pm HST	40	0.1600
29	29 August	5 am HST	35	0.1225
30	29 August	11 am HST	35	0.1225
31	29 August	5 pm HST	30	0
32	29 August	11 pm HST	30	0
33	30 August	5 am HST	30	0
34	30 August	11 am HST	30	0
35	30 August	5 pm HST	30	0
36	30 August	11 pm HST	30	0
37	31 August	5 am HST	35	0.1225
38	31 August	11 am HST	35	0.1225
39	31 August	5 pm HST	35	0.1225
40	31 August	11 pm HST	35	0.1225
41	1 September	5 am HST	35	0.1225
42	1 September	11 am HST	35	Post-Tropical
Total				7.925

08E.Hector

Adv.	Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
1	25 August	11 am HST	40	0.1600
2	25 August	5 pm HST	40	0.1600
3	25 August	11 pm HST	40	0.1600
4	26 August	5 am HST	45	0.2025
5	25 August	11 am HST	45	0.2025
6	26 August	5 pm HST	45	0.2025
7	26 August	11 pm HST	45	0.2025
8	27 August	5 am HST	40	0.1600
9	27 August	11 am HST	45	0.2025
10	27 August	5 pm HST	45	0.2025
11	27 August	11 pm HST	45	0.2025
12	28 August	5 am HST	45	0.2025
13	28 August	11 am HST	40	0.1600
14	28 August	5 pm HST	35	0.1225
15	29 August	2 am PDT	30	Remnants
Total				2.5425

09E.Ileana

Adv.	Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
1	12 September	8 am MST	30	0
2	12 September	2 pm MST	35	0.1225
3	12 September	8 pm MST	40	0.1600
4	13 September	2 am MST	40	0.1600
5	13 September	8 am MST	40	0.1600
6	13 September	2 pm MST	40	0.1600
7	13 September	8 pm MST	35	0.1225
Total				0.885

Totals

Storm	Type	ACE (104 kt2)
01E (Aletta)	Operational	0.2450
02E (Bud)	Operational	1.3525
03E (Carlotta)	Operational	7.3325
04E (Daniel)	Operational	1.1025
05E (Emilia)	Operational	3.6025
06E (Fabio)	Operational	1.6225
07E (Gilma)	Operational	25.1250 (1.6950)
01C (Hone)	Operational	(7.925)
08E (Hector)	Operational	2.5425
09E (Ileana)	Operational	0.2825
Total		43.2075 (9.62)