Talk:2010 Pacific hurricane season/ACE calcs

This is the page for calculating the Accumulated Cyclone Energy for the 2010 Pacific hurricane season.

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 usually 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. If any storms of a season happen to cross years, the storm's ACE counts for the previous year.

$\sum _{}^{}{\frac {{v_{\mathrm {max} }}^{2}}{10^{4}}},$

where v_max is estimated sustained wind speed in knots.

Operational (Advisories)

01E.Agatha

Adv.	Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
1	29 May	5 am PDT	30	Special
2	29 May	8 am PDT	35	0.1225
3	29 May	2 pm PDT	40	0.1600
4	29 May	8 pm PDT	30	0
5	30 May	2 am PDT	25	Low
Total				0.2825

02E.Two-E

Adv.	Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
1	16 June	8:30 am PDT	25	Special
2	16 June	2 pm PDT	25	0
3	16 June	8 pm PDT	25	0
4	17 June	2 am PDT	25	0
5	17 June	8 am PDT	25	0
Total				0

03E.Blas

Adv.	Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
1	17 June	8 am PDT	30	0
2	17 June	2 pm PDT	40	0.1600
3	17 June	8 pm PDT	40	0.1600
4	18 June	2 am PDT	35	0.1225
5	18 June	8 am PDT	40	0.1600
6	18 June	2 pm PDT	40	0.1600
7	18 June	8 pm PDT	45	0.2025
8	19 June	2 am PDT	45	0.2025
9	19 June	8 am PDT	55	0.3025
10	19 June	2 pm PDT	55	0.3025
11	19 June	8 pm PDT	50	0.2500
12	20 June	2 am PDT	40	0.1600
13	20 June	8 am PDT	40	0.1600
14	20 June	2 pm PDT	30	0
15	20 June	8 pm PDT	30	0
16	21 June	2 am PDT	30	0
17	21 June	8 am PDT	30	0
18	21 June	2 pm PDT	25	Low
Total				2.3425

04E.Celia

Adv.	Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
1	19 June	5:30 am PDT	30	Special
2	19 June	8 am PDT	35	0.1225
3	19 June	2 pm PDT	40	0.1600
4	19 June	8 pm PDT	55	0.3025
5	20 June	2 am PDT	55	0.3025
6	20 June	8 am PDT	55	0.3025
7	20 June	2 pm PDT	65	0.4225
8	20 June	8 pm PDT	70	0.4900
9	21 June	2 am PDT	70	0.4900
10	21 June	8 am PDT	70	0.4900
11	21 June	2 pm PDT	80	0.6400
12	21 June	8 pm PDT	90	0.8100
13	22 June	2 am PDT	90	0.8100
14	22 June	8 am PDT	90	0.8100
15	22 June	2 pm PDT	85	0.7225
16	22 June	8 pm PDT	80	0.6400
17	23 June	2 am PDT	75	0.5625
18	23 June	8 am PDT	85	0.7225
19	23 June	2 pm PDT	100	1.0000
20	23 June	8 pm PDT	90	0.8100
21	24 June	2 am PDT	95	0.9025
22	24 June	8 am PDT	100	1.0000
23	24 June	2 pm PDT	115	1.3225
24	24 June	8 pm PDT	140	1.9600
25	25 June	2 am PDT	140	1.9600
26	25 June	8 am PDT	130	1.6900
27	25 June	2 pm PDT	115	1.3225
28	25 June	8 pm PDT	105	1.1025
29	26 June	2 am PDT	85	0.7225
30	26 June	8 am PDT	80	0.6400
31	26 June	2 pm PDT	70	0.4900
32	26 June	8 pm PDT	55	0.3025
33	27 June	2 am PDT	45	0.2025
34	27 June	8 am PDT	45	0.2025
35	27 June	2 pm PDT	35	0.1225
36	27 June	8 pm PDT	35	0.1225
37	28 June	2 am PDT	35	0.1225
38	28 June	8 am PDT	35	0.1225
39	28 June	2 pm PDT	30	0
40	28 June	8 pm PDT	30	Low
Total				24.92

05E.Darby

Adv.	Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
1	22 June	8 pm PDT	30	0
2	23 June	2 am PDT	35	0.1225
3	23 June	8 am PDT	45	0.2025
4	23 June	2 pm PDT	55	0.3025
5	23 June	8 pm PDT	55	0.3025
6	24 June	2 am PDT	60	0.3600
7	24 June	8 am PDT	65	0.4225
8	24 June	2 pm PDT	70	0.4900
9	24 June	8 pm PDT	80	0.6400
10	25 June	2 am PDT	90	0.8100
11	25 June	8 am PDT	100	1.0000
12	25 June	2 pm PDT	105	1.1025
13	25 June	8 pm PDT	100	1.0000
14	26 June	2 am PDT	95	0.9025
15	26 June	8 am PDT	95	0.9025
16	26 June	2 pm PDT	75	0.5625
17	26 June	8 pm PDT	60	0.3600
18	27 June	2 am PDT	50	0.2500
19	27 June	8 am PDT	45	0.2025
20	27 June	2 pm PDT	40	0.1600
21	27 June	8 pm PDT	40	0.1600
22	28 June	2 am PDT	35	0.1225
23	28 June	8 am PDT	30	0
24	28 June	2 pm PDT	25	Low
Total				10.3775

07E.Estelle

Adv.	Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
1	5 August	8 pm PDT	30	0
2	6 August	2 am PDT	30	0
3	6 August	8 am PDT	30	0
4	6 August	2 pm PDT	35	0.1225
5	6 August	8 pm PDT	45	0.2025
6	7 August	2 am PDT	45	0.2025
7	7 August	8 am PDT	45	0.2025
8	7 August	2 pm PDT	50	0.2500
9	7 August	8 pm PDT	55	0.3025
10	8 August	2 am PDT	55	0.3025
11	8 August	8 am PDT	50	0.2500
12	8 August	2 pm PDT	40	0.1600
13	8 August	8 pm PDT	40	0.1600
14	9 August	2 am PDT	40	0.1600
15	9 August	8 am PDT	35	0.1225
16	9 August	2 pm PDT	30	0
17	9 August	8 pm PDT	30	0
18	10 August	2 am PDT	30	0
19	10 August	8 am PDT	25	Low
Total				2.4375

08E.Eight-E

Adv.	Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
1	20 August	5:30 am PDT	30	Special
2	20 August	8 am PDT	30	0
3	20 August	2 pm PDT	30	0
4	20 August	8 pm PDT	30	0
5	21 August	2 am PDT	25	0
6	21 August	8 am PDT	25	0
7	21 August	2 pm PDT	25	0
8	21 August	8 pm PDT	25	Low
Total				0

09E.Frank

Adv.	Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
1	21 August	2 pm PDT	25	0
2	21 August	8 pm PDT	30	0
3	22 August	2 am PDT	30	0
4	22 August	8 am PDT	40	0.1600
5	22 August	2 pm PDT	50	0.2500
6	22 August	8 pm PDT	50	0.2500
7	23 August	2 am PDT	50	0.2500
8	23 August	8 am PDT	50	0.2500
9	23 August	2 pm PDT	45	0.2025
10	23 August	8 pm PDT	45	0.2025
11	24 August	2 am PDT	45	0.2025
12	24 August	8 am PDT	55	0.3025
13	24 August	2 pm PDT	60	0.3600
14	24 August	8 pm PDT	55	0.3025
15	25 August	2 am PDT	60	0.3600
16	25 August	8 am PDT	65	0.4225
17	25 August	2 pm PDT	65	0.4225
18	25 August	8 pm PDT	70	0.4900
19	26 August	2 am PDT	70	0.4900
20	26 August	8 am PDT	75	0.5625
21	26 August	2 pm PDT	80	0.6400
22	26 August	8 pm PDT	75	0.5625
23	27 August	2 am PDT	70	0.4900
24	27 August	8 am PDT	65	0.4225
25	27 August	2 pm PDT	55	0.3025
26	27 August	8 pm PDT	45	0.2025
27	28 August	2 am PDT	35	0.1225
Total				8.2225

12E.Georgette

Adv.	Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
1	21 September	5 am PDT	35	Special
2	21 September	8 am PDT	35	0.1225
3	21 September	2 pm PDT	35	0.1225
4	21 September	8 pm PDT	30	0
5	22 September	2 am PDT	30	0
Total				0.245

01C.Omeka

Adv.	Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
1	19 December	11 pm HST	45	0.2025
2	20 December	5 am HST	45	0.2025
3	20 December	11 am HST	35	0.1225
4	20 December	5 pm HST	35	0.1225
5	20 December	11 pm HST	35	Extratropical
Total				0.65

Best Track (Tropical Cyclone Reports)

01E.Agatha

Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
29 May	0000 UTC	30	0
29 May	0600 UTC	35	0.1225
29 May	1200 UTC	35	0.1225
29 May	1800 UTC	40	0.1600
30 May	0000 UTC	35	0.1225
30 May	0600 UTC	25	0
30 May	1200 UTC	15	Low
Total			0.5275

02E.Two-E

Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
16 June	0600 UTC	25	0
16 June	1200 UTC	25	0
16 June	1800 UTC	30	0
17 June	0000 UTC	25	0
17 June	0600 UTC	--	Dissipated
Total			0

03E.Blas

Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
17 June	0600 UTC	30	0
17 June	1200 UTC	35	0.1225
17 June	1800 UTC	40	0.1600
18 June	0000 UTC	40	0.1600
18 June	0600 UTC	40	0.1600
18 June	1200 UTC	40	0.1600
18 June	1800 UTC	40	0.1600
19 June	0000 UTC	45	0.2025
19 June	0600 UTC	50	0.2500
19 June	1200 UTC	55	0.3025
19 June	1800 UTC	55	0.3025
20 June	0000 UTC	50	0.2500
20 June	0600 UTC	45	0.2025
20 June	1200 UTC	40	0.1600
20 June	1800 UTC	35	0.1225
21 June	0000 UTC	30	0
21 June	0600 UTC	30	0
21 June	1200 UTC	30	0
21 June	1800 UTC	25	Low
Total			2.715

04E.Celia

Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
18 June	1800 UTC	25	0
19 June	0000 UTC	25	0
19 June	0600 UTC	30	0
19 June	1200 UTC	35	0.1225
19 June	1800 UTC	40	0.1600
20 June	0000 UTC	50	0.2500
20 June	0600 UTC	55	0.3025
20 June	1200 UTC	60	0.3600
20 June	1800 UTC	65	0.4225
21 June	0000 UTC	65	0.4225
21 June	0600 UTC	65	0.4225
21 June	1200 UTC	70	0.4900
21 June	1800 UTC	75	0.5625
22 June	0000 UTC	80	0.6400
22 June	0600 UTC	85	0.7225
22 June	1200 UTC	85	0.7225
22 June	1800 UTC	85	0.7225
23 June	0000 UTC	80	0.6400
23 June	0600 UTC	75	0.5625
23 June	1200 UTC	85	0.7225
23 June	1800 UTC	95	0.9025
24 June	0000 UTC	90	0.8100
24 June	0600 UTC	90	0.8100
24 June	1200 UTC	100	1.0000
24 June	1800 UTC	115	1.3225
25 June	0000 UTC	140	1.9600
25 June	0600 UTC	140	1.9600
25 June	1200 UTC	125	1.5625
25 June	1800 UTC	110	1.2100
26 June	0000 UTC	100	1.0000
26 June	0600 UTC	90	0.8100
26 June	1200 UTC	85	0.7225
26 June	1800 UTC	70	0.4900
27 June	0000 UTC	55	0.3025
27 June	0600 UTC	50	0.2500
27 June	1200 UTC	45	0.2025
27 June	1800 UTC	40	0.1600
28 June	0000 UTC	35	0.1225
28 June	0600 UTC	35	0.1225
28 June	1200 UTC	35	0.1225
28 June	1800 UTC	30	Low
Total			24.09

05E.Darby

Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
23 June	0000 UTC	30	0
23 June	0600 UTC	35	0.1225
23 June	1200 UTC	45	0.2025
23 June	1800 UTC	55	0.3025
24 June	0000 UTC	60	0.3600
24 June	0600 UTC	65	0.4225
24 June	1200 UTC	70	0.4900
24 June	1800 UTC	75	0.5625
25 June	0000 UTC	80	0.6400
25 June	0600 UTC	90	0.8100
25 June	1200 UTC	100	1.0000
25 June	1800 UTC	105	1.1025
26 June	0000 UTC	100	1.0000
26 June	0600 UTC	100	1.0000
26 June	1200 UTC	95	0.9025
26 June	1800 UTC	85	0.7225
27 June	0000 UTC	70	0.4900
27 June	0600 UTC	60	0.3600
27 June	1200 UTC	50	0.2500
27 June	1800 UTC	40	0.1600
28 June	0000 UTC	35	0.1225
28 June	0600 UTC	35	0.1225
28 June	1200 UTC	30	0
28 June	1800 UTC	25	Low
Total			11.145

07E.Estelle

Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
6 August	0000 UTC	30	0
6 August	0600 UTC	30	0
6 August	1200 UTC	35	0.1225
6 August	1800 UTC	40	0.1600
7 August	0000 UTC	45	0.2025
7 August	0600 UTC	45	0.2025
7 August	1200 UTC	50	0.2500
7 August	1800 UTC	50	0.2500
8 August	0000 UTC	55	0.3025
8 August	0600 UTC	55	0.3025
8 August	1200 UTC	50	0.2500
8 August	1800 UTC	45	0.2025
9 August	0000 UTC	40	0.1600
9 August	0600 UTC	35	0.1225
9 August	1200 UTC	35	0.1225
9 August	1800 UTC	30	0
10 August	0000 UTC	30	0
10 August	0600 UTC	25	Low
Total			2.65

09E.Frank

Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
21 August	1800 UTC	25	0
22 August	0000 UTC	30	0
22 August	0600 UTC	30	0
22 August	1200 UTC	40	0.1600
22 August	1800 UTC	50	0.2500
23 August	0000 UTC	50	0.2500
23 August	0600 UTC	50	0.2500
23 August	1200 UTC	45	0.2025
23 August	1800 UTC	45	0.2025
24 August	0000 UTC	45	0.2025
24 August	0600 UTC	50	0.2500
24 August	1200 UTC	55	0.3025
24 August	1800 UTC	55	0.3025
25 August	0000 UTC	60	0.3600
25 August	0600 UTC	60	0.3600
25 August	1200 UTC	65	0.4225
25 August	1800 UTC	65	0.4225
26 August	0000 UTC	70	0.4900
26 August	0600 UTC	70	0.4900
26 August	1200 UTC	75	0.5625
26 August	1800 UTC	80	0.6400
27 August	0000 UTC	75	0.5625
27 August	0600 UTC	70	0.4900
27 August	1200 UTC	65	0.4225
27 August	1800 UTC	55	0.3025
28 August	0000 UTC	45	0.2025
28 August	0600 UTC	35	0.1225
28 August	1200 UTC	30	0
28 August	1800 UTC	25	Low
Total			8.2225

12E.Georgette

Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
20 September	1200 UTC	30	0
20 September	1800 UTC	35	0.1225
21 September	0000 UTC	35	0.1225
21 September	0600 UTC	35	0.1225
21 September	1200 UTC	35	0.1225
21 September	1800 UTC	35	0.1225
22 September	0000 UTC	30	0
22 September	0600 UTC	30	0
22 September	1200 UTC	30	0
22 September	1800 UTC	30	0
23 September	0000 UTC	30	0
23 September	0600 UTC	--	Dissipated
Total			0.6125

01C.Omeka

Date	Time	Maximum Sustained Winds (kt)	ACE (104 kt2)
18 December	0000 UTC	30	0
18 December	0600 UTC	30	0
18 December	1200 UTC	35	0.1225
18 December	1800 UTC	35	0.1225
19 December	0000 UTC	40	0.1600
19 December	0600 UTC	45	0.2025
19 December	1200 UTC	50	0.2500
19 December	1800 UTC	50	0.2500
20 December	0000 UTC	45	0.2025
20 December	0600 UTC	45	0.2025
20 December	1200 UTC	45	0.2025
20 December	1800 UTC	35	0.1225
21 December	0000 UTC	35	0.1225
21 December	0600 UTC	35	0.1225
21 December	1200 UTC	35	Low
Total			2.0825

Season total

Storm	Type	ACE (104 kt2)
01E (Agatha)	Best Track	0.5275
02E (Two-E)	Best Track	0.0000
03E (Blas)	Best Track	2.7150
04E (Celia)	Best Track	24.0900
05E (Darby)	Best Track	11.1450
06E (Six-E)	Best Track	0.0000
07E (Estelle)	Best Track	2.6500
09E (Frank)	Best Track	8.2225
12E (Georgette)	Best Track	0.6125
01C (Omeka)	Best Track	0.0000 (2.0825)
Total		49.9625 (2.0825)