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Light mode 2:45pm 16/05/2026 to 2:45pm 18/05/2026
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Observations for this analysis :
Maximum observed rainfall by duration, estimated return period and AEP
Duration
Rainfall
Start
End
Years
AEP
15m
10.0 mm
12:30pm 18/05/2026
12:45pm 18/05/2026
1 in 1.0 years
97.13 %
30m
16.0 mm
12:30pm 18/05/2026
1:00pm 18/05/2026
1 in 1.1 years
92.28 %
45m
21.0 mm
12:15pm 18/05/2026
1:00pm 18/05/2026
1 in 1.2 years
85.96 %
60m
24.0 mm
12:00pm 18/05/2026
1:00pm 18/05/2026
1 in 1.2 years
80.75 %
90m
31.0 mm
11:45am 18/05/2026
1:15pm 18/05/2026
1 in 1.5 years
67.27 %
120m
36.0 mm
11:45am 18/05/2026
1:45pm 18/05/2026
1 in 1.7 years
60.24 %
3h
42.0 mm
11:30am 18/05/2026
2:30pm 18/05/2026
1 in 1.8 years
54.38 %
4h
51.0 mm
10:00am 18/05/2026
2:30pm 18/05/2026
1 in 2.2 years
45.83 %
6h
61.0 mm
8:30am 18/05/2026
2:30pm 18/05/2026
1 in 2.7 years
36.38 %
9h
79.0 mm
5:30am 18/05/2026
2:30pm 18/05/2026
1 in 3.9 years
25.56 %
12h
83.0 mm
2:30am 18/05/2026
2:30pm 18/05/2026
1 in 3.3 years
30.07 %
18h
85.0 mm
8:30pm 17/05/2026
2:30pm 18/05/2026
1 in 2.3 years
42.85 %
24h
85.0 mm
2:30pm 17/05/2026
2:30pm 18/05/2026
1 in 1.8 years
54.23 %
30h
85.0 mm
8:30am 17/05/2026
2:30pm 18/05/2026
1 in 1.6 years
62.84 %
36h
85.0 mm
2:30am 17/05/2026
2:30pm 18/05/2026
1 in 1.5 years
67.9 %
Note: A '1 in 1.0 years' estimate means that it is almost certain to occur at least once in a year, and could occur much more than once per year on average. For smaller values like this the Annual Recurrance Interval (ARI) may be of more relevance, but it is complex to calculate for common events.
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