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This is the page for calculating the Accumulated cyclone energy for the 2001 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 25 May
2 pm PDT
30
0
2 25 May
8 pm PDT
30
0
3 26 May
2 am PDT
30
0
4 26 May
8 am PDT
30
0
5 26 May
2 pm PDT
35
0.1225
6 26 May
8 pm PDT
45
0.2025
7 27 May
2 am PDT
55
0.3025
8 27 May
8 am PDT
60
0.3600
9 27 May
2 pm PDT
80
0.6400
10 27 May
8 pm PDT
105
1.1025
11 28 May
2 am PDT
110
1.2100
12 28 May
8 am PDT
110
1.2100
13 28 May
2 pm PDT
110
1.2100
14 28 May
8 pm PDT
125
1.5625
15 29 May
2 am PDT
125
1.5625
16 29 May
8 am PDT
125
1.5625
17 29 May
2 pm PDT
110
1.2100
18 29 May
8 pm PDT
110
1.2100
19 30 May
2 am PDT
100
1.0000
20 30 May
8 am PDT
95
0.9025
21 30 May
2 pm PDT
85
0.7225
22 30 May
8 pm PDT
80
0.6400
23 31 May
2 am PDT
65
0.4225
24 31 May
8 am PDT
65
0.4225
25 31 May
2 pm PDT
60
0.3600
26 31 May
8 pm PDT
50
0.2500
27 1 June
2 am PDT
40
0.1600
28 1 June
8 am PDT
35
0.1225
29 1 June
2 pm PDT
30
0
30 1 June
8 pm PDT
25
0
Total
18.31
Adv.
Date
Time
Maximum Sustained Winds (kt)
ACE (104 kt2 )
1 19 June
8 pm PDT
30
0
2 20 June
2 am PDT
30
0
3 20 June
8 am PDT
30
0
4 20 June
2 pm PDT
35
0.1225
5 20 June
8 pm PDT
40
0.1600
6 21 June
2 am PDT
45
0.2025
7 21 June
8 am PDT
50
0.2500
8 21 June
2 pm PDT
45
0.2025
9 21 June
8 pm PDT
45
0.2025
10 22 June
2 am PDT
35
0.1225
11 22 June
8 am PDT
35
0.1225
Total
1.1825
Adv.
Date
Time
Maximum Sustained Winds (kt)
ACE (104 kt2 )
1 13 July
2 am PDT
25
0
2 13 July
8 am PDT
35
0.1225
3 13 July
2 pm PDT
40
0.1600
4 13 July
8 pm PDT
45
0.2025
5 14 July
2 am PDT
40
0.1600
6 14 July
8 am PDT
30
0
7 14 July
2 pm PDT
30
0
8 14 July
8 pm PDT
25
0
9 15 July
2 am PDT
25
0
10 15 July
8 am PDT
25
0
11 15 July
2 pm PDT
25
Dissipating
Total
0.645
Storm Type ACE (104 kt2 ) 01E (Adolph) Best track 18.31 02E (Barbara) Best track 1.1825 03E (Cosme) Best track 0.645 Total 20.1375
