From Wikipedia, the free encyclopedia
This is the page for calculating the Accumulated cyclone energy for the 2023 Pacific 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,
ACE
=
∑
v
m
a
x
2
10
4
,
{\displaystyle {\text{ACE}}=\sum _{}^{}{\frac {{v_{\mathrm {max} }}^{2}}{10^{4}}},}
where v max is estimated sustained wind speed in knots.
Adv.
Date
Time
Maximum Sustained Winds (kt)
ACE (104 kt2 )
1 27 June
3 pm MDT
40
0.1600
2 27 June
9 pm MDT
50
0.2500
3 28 June
3 am MDT
55
0.3025
4 28 June
9 am MDT
65
0.4225
5 28 June
3 pm MDT
70
0.4900
6 28 June
9 pm MDT
70
0.4900
7 29 June
3 am MDT
75
0.5625
8 29 June
9 am MDT
75
0.5625
9 29 June
3 pm MDT
75
0.5625
10 29 June
9 pm MDT
80
0.6400
11 30 June
3 am MDT
85
0.7225
12 30 June
9 am MDT
90
0.8100
13 30 June
3 pm MDT
90
0.8100
14 30 June
9 pm MDT
80
0.6400
15 1 July
3 am MDT
80
0.6400
16 1 July
9 am MDT
55
0.3025
17 1 July
2 pm PDT
50
0.2500
18 1 July
8 pm PDT
50
0.2500
19 2 July
2 am PDT
30
0
20 2 July
8 am PDT
30
0
21 2 July
2 pm PDT
25
post-trop.
Total
8.8675
Adv.
Date
Time
Maximum Sustained Winds (kt)
ACE (104 kt2 )
1 28 June
10 pm CDT
25
Potential
2 29 June
4 am CDT
30
0
3 29 June
10 am CDT
30
0
4 29 June
4 pm CDT
35
0.1225
5 29 June
10 pm CDT
35
0.1225
6 30 June
4 am CDT
50
0.25000
7 30 June
10 am CDT
65
0.4225
8 30 June
4 pm CDT
75
0.5625
9 30 June
10 pm CDT
75
0.5625
10 1 July
4 am CDT
55
0.3025
11 1 July
10 am CDT
45
0.2025
12 1 July
12 pm MDT
25
Remnants
Total
2.5475
Adv.
Date
Time
Maximum Sustained Winds (kt)
ACE (104 kt2 )
1 11 July
3 pm MDT
30
0
2 11 July
9 pm MDT
30
0
3 12 July
3 am MDT
40
0.1600
4 12 July
5 am HST
45
0.2025
5 12 July
11 am HST
55
0.3025
6 12 July
5 pm HST
60
0.3600
7 12 July
11 pm HST
60
0.3600
8 13 July
5 am HST
65
0.4225
9 13 July
11 am HST
70
0.4900
10 13 July
5 pm HST
85
0.7225
11 13 July
11 pm HST
90
0.8100
12 14 July
5 am HST
105
1.1025
13 14 July
11 am HST
110
1.21
14 14 July
5 pm HST
105
1.1025
15 14 July
11 pm HST
90
0.8100
16 15 July
5 am HST
85
0.7225
17 15 July
11 am HST
85
0.7225
18 15 July
5 pm HST
85
0.7225
19 15 July
11 pm HST
70
0.4900
20 16 July
5 am HST
60
0.3600
21 16 July
11 am HST
55
0.3025
22 16 July
5 pm HST
50
0.2500
23 16 July
11 pm HST
45
0.2025
Total
11.77
Adv.
Date
Time
Maximum Sustained Winds (kt)
ACE (104 kt2 )
24 17 July
5 am HST
45
0.2025
25 17 July
11 am HST
40
0.1600
26 17 July
5 pm HST
40
0.1600
27 17 July
11 pm HST
40
0.1600
28 18 July
5 am HST
40
0.1600
29 18 July
11 am HST
45
0.2025
30 18 July
5 pm HST
50
0.2500
31 18 July
11 pm HST
45
0.2025
32 19 July
5 am HST
40
0.1600
33 19 July
11 am HST
35
Post-Tropical
Total
1.6575
Adv.
Date
Time
Maximum Sustained Winds (kt)
ACE (104 kt2 )
1 21 July
2 am PDT
30
0
2 21 July
8 am PDT
30
0
3 21 July
2 pm PDT
30
0
4 21 July
8 pm PDT
30
0
5 22 July
2 am PDT
30
0
6 22 July
8 am PDT
30
Post-Tropical
Total
0
Adv.
Date
Time
Maximum Sustained Winds (kt)
ACE (104 kt2 )
1 31 July
4 pm CDT
30
0
2 31 July
10 pm CDT
30
0
3 1 August
3 am MDT
35
0.1225
4 1 August
9 am MDT
50
0.2500
5 1 August
3 pm PDT
55
0.3025
6 1 August
5 pm HST
65
0.4225
7 1 August
11 pm HST
80
0.6400
8 2 August
5 am HST
90
0.8100
9 2 August
11 am HST
95
0.9025
10 2 August
5 pm HST
110
1.2100
11 2 August
11 pm HST
115
1.3225
12 3 August
5 am HST
110
1.2100
13 3 August
11 am HST
105
1.1025
14 3 August
5 pm HST
120
1.4400
15 3 August
11 pm HST
105
1.1025
16 4 August
5 am HST
95
0.9025
17 4 August
11 am HST
95
0.9025
18 4 August
5 pm HST
90
0.8100
19 4 August
11 pm HST
95
0.9025
20 5 August
5 am HST
100
1.0000
21 5 August
8 am HST
110
Special
22 5 August
11 am HST
115
1.3225
23 5 August
5 pm HST
125
1.5625
24 5 August
11 pm HST
125
1.5625
25 6 August
5 am HST
120
1.400
Total
21.2425
Adv.
Date
Time
Maximum Sustained Winds (kt)
ACE (104 kt2 )
26 6 August
11 am HST
120
1.4400
27 6 August
5 pm HST
120
1.4400
28 6 August
11 pm HST
120
1.4400
29 7 August
5 am HST
115
1.3225
30 7 August
11 am HST
115
1.3225
31 7 August
5 pm HST
115
1.3225
32 7 August
11 pm HST
115
1.3225
33 8 August
5 am HST
115
1.3225
34 8 August
11 am HST
115
1.3225
35 8 August
5 pm HST
115
1.3225
36 8 August
11 pm HST
115
1.3225
37 9 August
5 am HST
115
1.3225
38 9 August
11 am HST
115
1.3225
39 9 August
5 pm HST
125
1.5625
40 9 August
11 pm HST
120
1.4400
41 10 August
5 am HST
105
1.1025
42 10 August
11 am HST
105
1.1025
43 10 August
5 pm HST
105
1.1025
44 10 August
11 pm HST
105
1.1025
45 11 August
5 am HST
100
1.0000
46 11 August
11 am HST
95
0.9025
Total
26.86
Adv.
Date
Time
Maximum Sustained Winds (kt)
ACE (104 kt2 )
1 5 August
9 am MDT
30
0
2 5 August
3 pm MDT
35
0.1225
3 5 August
9 pm MDT
45
0.2025
4 6 August
3 am MDT
55
0.3025
5 6 August
9 am MDT
60
0.3600
6 6 August
3 pm MDT
60
0.3600
7 6 August
8 pm PDT
50
0.2500
8 7 August
2 am MDT
45
0.2025
9 7 August
8 am PDT
40
0.1600
10 7 August
2 pm MDT
35
Post-Tropical
Total
1.96
Adv.
Date
Time
Maximum Sustained Winds (kt)
ACE (104 kt2 )
1 12 August
3 pm MDT
30
0
2 12 August
9 pm MDT
40
0.1600
3 13 August
2 am PDT
45
0.2025
4 13 August
8 am PDT
50
0.2500
5 13 August
2 pm PDT
65
0.4225
6 13 August
5 pm HST
90
0.8100
7 13 August
11 pm HST
110
1.2100
8 14 August
5 am HST
115
1.3225
9 14 August
11 am HST
115
1.3225
10 14 August
5 pm HST
115
1.1025
11 14 August
11 pm HST
95
0.9025
12 15 August
5 am HST
95
0.9025
13 15 August
11 am HST
90
0.8100
14 15 August
5 pm HST
80
0.6400
15 15 August
11 pm HST
65
0.4225
16 16 August
5 am HST
55
0.3025
17 16 August
11 am HST
45
0.2025
18 16 August
5 pm HST
40
0.1600
19 16 August
11 pm HST
35
0.1225
20 17 August
5 am HST
30
Post-Tropical
Total
11.2675
Adv.
Date
Time
Maximum Sustained Winds (kt)
ACE (104 kt2 )
1 13 August
5 pm HST
30
0
2 13 August
11 pm HST
35
0.1225
Total
0.1225
Adv.
Date
Time
Maximum Sustained Winds (kt)
ACE (104 kt2 )
3 14 August
5 am HST
35
0.1225
4 14 August
11 am HST
40
0.1600
5 14 August
5 pm HST
40
0.1600
6 14 August
11 pm HST
45
0.2025
7 15 August
5 am HST
45
0.2025
8 15 August
11 am HST
45
0.2025
9 15 August
5 pm HST
45
0.2025
10 15 August
11 pm HST
45
0.2025
11 16 August
5 am HST
45
0.2025
12 16 August
11 am HST
40
0.1600
13 16 August
5 pm HST
40
0.1600
14 16 August
11 pm HST
40
0.1600
15 17 August
5 am HST
35
0.1225
16 17 August
11 am HST
30
0
Total
2.26
Adv.
Date
Time
Maximum Sustained Winds (kt)
ACE (104 kt2 )
1 16 August
10 am CDT
35
0.1225
2 16 August
4 pm CDT
35
0.1225
3 16 August
10 pm CDT
45
0.2025
4 17 August
3 am CDT
60
0.3600
5 17 August
9 am MDT
75
0.5625
6 17 August
3 pm MDT
95
0.9025
7 17 August
9 pm MDT
110
1.2100
8 18 August
3 am MDT
125
1.5625
9 18 August
9 am MDT
125
1.5625
10 18 August
3 pm MDT
115
1.3225
11 18 August
9 pm MDT
115
1.3225
12 19 August
3 am MDT
115
1.3225
13 19 August
9 am MDT
110
1.2100
14 19 August
3 pm MDT
95
0.9025
15 19 August
9 pm MDT
80
0.6400
16 20 August
2 am PDT
75
0.5625
17 20 August
8 am PDT
60
0.3600
18 20 August
2 pm PDT
50
0.2500
19 20 August
8 pm PDT
40
0.1600
20 21 August
2 am PDT
30
Post-Tropical
21 21 August
8 am PDT
30
Post-Tropical
22 21 August
2 pm PDT
25
Post-Tropical
Total
14.66
Adv.
Date
Time
Maximum Sustained Winds (kt)
ACE (104 kt2 )
1 26 August
5 pm HST
30
0
2 26 August
11 pm HST
30
0
3 27 August
5 am HST
35
0.1225
4 27 August
11 am HST
35
0.1225
5 27 August
5 pm HST
35
0.1225
6 27 August
11 pm HST
35
0.1225
7 28 August
5 am HST
35
0.1225
8 28 August
11 am HST
35
0.1225
9 28 August
5 pm HST
35
0.1225
10 28 August
11 pm HST
35
0.1225
11 29 August
5 am HST
35
0.1225
12 29 August
11 am HST
35
0.1225
13 29 August
5 pm HST
35
Remnants
Total
1.225
Adv.
Date
Time
Maximum Sustained Winds (kt)
ACE (104 kt2 )
1 4 September
4 pm CDT
30
0
2 4 September
10 pm CDT
30
0
3 5 September
3 am MDT
35
0.1225
4 5 September
9 am MDT
45
0.2025
5 5 September
3 pm MDT
55
0.3025
6 5 September
9 pm MDT
60
0.3600
7 6 September
3 am MDT
75
0.5625
8 6 September
9 am MDT
90
0.8100
9 6 September
3 pm MDT
115
1.3225
10 6 September
9 pm MDT
140
1.9600
11 7 September
3 am MDT
140
1.9600
12 7 September
8 am PDT
135
1.8225
13 7 September
2 pm PDT
125
1.5625
14 7 September
8 pm PDT
115
1.3225
15 8 September
2 am PDT
95
0.9025
16 8 September
8 am PDT
85
0.7225
17 8 September
2 pm PDT
75
0.5625
18 8 September
8 pm PDT
65
0.4225
19 9 September
2 am PDT
60
0.3600
20 9 September
8 am PDT
55
0.3025
21 9 September
2 pm PDT
45
0.2025
22 9 September
8 pm PDT
45
0.2025
23 10 September
2 am PDT
40
0.1600
24 10 September
8 am PDT
35
0.1225
25 10 September
2 pm PDT
35
Post-tropical
Total
16.27
Adv.
Date
Time
Maximum Sustained Winds (kt)
ACE (104 kt2 )
1 15 September
11 am HST
25
0
2 15 September
5 pm HST
25
0
3 15 September
11 pm HST
25
0
4 16 September
5 am HST
30
0
5 16 September
11 am HST
30
0
6 16 September
5 pm HST
30
Post-Tropical
Total
0
Adv.
Date
Time
Maximum Sustained Winds (kt)
ACE (104 kt2 )
1 19 September
8 am PDT
30
0
2 19 September
2 pm PDT
40
0.1600
3 19 September
8 pm PDT
40
0.1600
4 20 September
2 am PDT
40
0.1600
5 20 September
8 am PDT
45
0.2025
6 20 September
2 pm PDT
45
0.2025
7 20 September
8 pm PDT
45
0.2025
8 21 September
2 am PDT
45
0.2025
9 21 September
8 am PDT
40
0.1600
10 21 September
2 pm PDT
35
0.1225
11 21 September
8 pm PDT
35
0.1225
12 22 September
2 am PDT
30
0.0000
13 22 September
8 am PDT
30
Post-Tropical
Total
1.695
Adv.
Date
Time
Maximum Sustained Winds (kt)
ACE (104 kt2 )
1 23 September
11 am HST
30
0
2 23 September
5 pm HST
30
0
3 23 September
11 pm HST
30
0
4 24 September
5 am HST
30
0
5 24 September
11 am HST
30
0
6 24 September
8 pm PDT
25
Post-Tropical
Total
0
Adv.
Date
Time
Maximum Sustained Winds (kt)
ACE (104 kt2 )
1 3 October
3 am MDT
35
0.1225
2 3 October
9 am MDT
35
0.1225
3 3 October
3 pm MDT
35
0.1225
4 3 October
9 pm MDT
35
0.1225
5 4 October
3 am MDT
40
0.1600
6 4 October
9 am MDT
45
0.2025
7 4 October
3 pm MDT
45
0.2025
8 4 October
9 pm MDT
45
0.2025
9 5 October
3 am MDT
45
0.2025
10 5 October
9 am MDT
50
0.2500
11 5 October
3 pm MDT
50
0.2500
12 5 October
9 pm MDT
55
0.3025
13 6 October
3 am MDT
60
0.3600
14 6 October
9 am MDT
60
0.3600
15 6 October
3 pm MDT
60
0.3600
16 6 October
9 pm MDT
60
0.3600
17 7 October
3 am MDT
55
0.3025
18 7 October
9 am MDT
55
0.3025
19 7 October
3 pm MDT
55
0.3025
20 7 October
9 pm MDT
60
0.3600
21 8 October
3 am MDT
60
0.3600
22 8 October
9 am MDT
60
0.3600
23 8 October
3 pm MDT
60
0.3600
24 8 October
9 pm MDT
60
0.3600
25 9 October
3 am MDT
55
0.3025
26 9 October
9 am MDT
55
0.3025
27 9 October
3 pm MDT
60
0.3600
28 9 October
9 pm MDT
65
0.4225
29 10 October
3 am MDT
75
0.5625
30 10 October
9 am MDT
85
0.7225
31 10 October
3 pm MDT
110
1.2100
32 10 October
10 pm CDT
90
0.8100
33 11 October
4 am CDT
30
Remnants
Total
11.1025
Adv.
Date
Time
Maximum Sustained Winds (kt)
ACE (104 kt2 )
1 7 October
10 pm CDT
25
Potential
2 8 October
4 am CDT
25
Potential
3 8 October
10 am CDT
30
Potential
4 8 October
4 pm CDT
30
0
5 8 October
10 pm CDT
35
0.1225
6 9 October
4 am CDT
45
0.2025
7 9 October
10 am CDT
50
0.2500
8 9 October
4 pm CDT
50
0.2500
9 9 October
10 pm CDT
30
0.0000
10 10 October
4 am CDT
20
Remnants
Total
0.825
Adv.
Date
Time
Maximum Sustained Winds (kt)
ACE (104 kt2 )
1 17 October
3 pm MDT
35
0.1225
2 17 October
9 pm MDT
45
0.2025
3 18 October
3 am MDT
55
0.3025
4 18 October
9 am MDT
60
0.3600
5 18 October
3 pm MDT
70
0.4900
6 18 October
9 pm MDT
80
0.6400
7 19 October
3 am MDT
105
1.1025
8 19 October
9 am MDT
115
1.3225
9 19 October
3 pm MDT
110
1.2100
10 19 October
9 pm MDT
105
1.1025
11 20 October
3 am MDT
100
1.0000
12 20 October
9 am MDT
95
0.9025
13 20 October
3 pm MDT
105
1.1025
14 20 October
9 pm MDT
105
1.1025
15 21 October
3 am MDT
100
1.000
16 21 October
9 am MDT
85
0.7225
17 21 October
3 pm MDT
70
0.4900
18 21 October
9 pm MDT
55
0.3025
19 22 October
3 am MDT
50
0.2500
20 22 October
9 am MDT
50
0.2500
21 22 October
3 pm MDT
55
0.3025
22 22 October
9 pm MDT
50
0.2500
23 23 October
3 am MDT
30
0.0000
24 23 October
9 am MDT
30
Post-Tropical
Total
14.53
Adv.
Date
Time
Maximum Sustained Winds (kt)
ACE (104 kt2 )
1 22 October
10 am CDT
30
0
2 22 October
4 pm CDT
35
0.1225
3 22 October
10 pm CDT
35
0.1225
4 23 October
4 am CDT
40
0.16000
5 23 October
10 am CDT
40
0.16000
6 23 October
4 pm CDT
45
0.2025
7 23 October
10 pm CDT
45
0.2025
8 24 October
4 am CDT
55
0.3025
9 24 October
10 am CDT
60
0.3600
10 24 October
4 pm CDT
110
1.2100
11 24 October
7 pm CDT
125
Special
12 24 October
10 pm CDT
140
1.9600
13 25 October
4 am CDT
115
1.3225
14 25 October
10 am CDT
70
0.4900
15 25 October
4 pm CDT
30
Remnants
Total
6.615
Adv.
Date
Time
Maximum Sustained Winds (kt)
ACE (104 kt2 )
1 28 October
4 pm CDT
30
0
2 28 October
10 pm CDT
30
0
3 29 October
4 am CDT
30
0
4 29 October
10 am CDT
30
0
5 29 October
4 pm CDT
30
0
6 29 October
10 pm CDT
35
0.1225
7 30 October
4 am CDT
35
0.1225
8 30 October
10 am CDT
45
0.2025
9 30 October
4 pm CDT
45
0.2025
10 30 October
10 pm CDT
45
0.2025
11 31 October
4 am CDT
45
0.2025
12 31 October
10 am CDT
45
0.2025
13 31 October
4 pm CDT
45
0.2025
14 31 October
10 pm CDT
50
0.2500
15 1 November
4 am CDT
50
0.2500
16 1 November
10 am CDT
50
0.2500
17 1 November
4 pm CDT
45
0.2025
18 1 November
10 pm CDT
40
0.1600
19 2 November
4 am CDT
45
0.2025
20 2 November
10 am CDT
45
0.2025
21 2 November
4 pm CDT
50
0.2500
22 2 November
10 pm CDT
50
0.2500
23 3 November
4 am CDT
45
0.2025
24 3 November
10 am CDT
45
0.2025
25 3 November
4 pm CDT
40
0.1600
26 3 November
9 pm MDT
40
0.1600
27 4 November
3 am MDT
40
0.1600
28 4 November
9 am MDT
40
0.1600
29 4 November
3 pm MDT
40
0.1600
30 4 November
9 pm MDT
45
0.2025
31 5 November
2 am MST
45
0.2025
32 5 November
8 am MST
45
0.2025
33 5 November
2 pm MST
35
0.1225
34 5 November
8 apm MST
35
Post-tropical
Total
5.4125
Adv.
Date
Time
Maximum Sustained Winds (kt)
ACE (104 kt2 )
1 23 November
8 am MDT
30
0
2 23 November
1 pm PST
30
0
3 23 November
7 pm PST
30
0
4 24 November
1 am PST
30
0
5 24 November
7 am PST
30
0
6 24 November
1 pm PST
30
0
7 24 November
7 pm PST
35
0.1225
8 25 November
1 am PST
35
0.1225
9 25 November
7 am PST
35
0.1225
10 25 November
1 pm PST
35
0.1225
11 25 November
7 pm PST
40
0.1600
12 26 November
1 am PST
35
0.1225
13 26 November
7 am PST
30
Remnant Low
Total
0.7725
Date
Time
Maximum Sustained Winds (kt)
ACE (104 kt2 )
20 July
1200 UTC
30
0
20 July
1800 UTC
30
0
21 July
0000 UTC
30
0
21 July
0600 UTC
30
0
21 July
1200 UTC
30
0
21 July
1800 UTC
30
0
22 July
0000 UTC
30
low
22 July
0600 UTC
30
low
22 July
1200 UTC
25
low
22 July
1800 UTC
25
low
23 July
0000 UTC
25
low
23 July
0600 UTC
N/A
Dissipated
Total
0
Storm Type ACE (104 kt2 ) 01E (Adrian) Best track 8.7550 02E (Beatriz) Best track 2.5650 03E (Calvin) Best track 8.4000 04E (Four-E) Best track 0.0000 05E (Dora) Best track 21.8075 06E (Eugene) Best track 1.8575 07E (Fernanda) Best track 12.5900 08E (Greg) Best track 0.1225 09E (Hilary) Best track 13.4475 10E (Irwin) Best track 1.0550 11E (Jova) Best track 16.0995 12E (Twelve-E) Best track 0.0000 13E (Kenneth) Best track 1.8175 14E (Fourteen-E) Best track 0.000 15E (Lidia) Best track 11.9750 16E (Max) Best track 1.1950 17E (Norma) Best track 14.5300 18E (Otis) Best track 9.3825 19E (Pilar) Best track 5.4150 20E (Ramon) Best track 0.9325 Total 131.947
