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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
11.0 mm
11:30am 18/05/2026
11:45am 18/05/2026
1 in 1.0 years
98.35 %
30m
18.0 mm
12:30pm 18/05/2026
1:00pm 18/05/2026
1 in 1.1 years
94.4 %
45m
24.0 mm
12:15pm 18/05/2026
1:00pm 18/05/2026
1 in 1.1 years
87.1 %
60m
28.0 mm
12:15pm 18/05/2026
1:15pm 18/05/2026
1 in 1.2 years
81.24 %
90m
40.0 mm
11:30am 18/05/2026
1:00pm 18/05/2026
1 in 1.7 years
58.18 %
120m
50.0 mm
11:00am 18/05/2026
1:00pm 18/05/2026
1 in 2.2 years
45.46 %
3h
69.0 mm
11:15am 18/05/2026
2:15pm 18/05/2026
1 in 3.4 years
29.46 %
4h
85.0 mm
9:45am 18/05/2026
2:15pm 18/05/2026
1 in 3.7 years
26.86 %
6h
95.0 mm
8:30am 18/05/2026
2:30pm 18/05/2026
1 in 3.5 years
28.19 %
9h
122.0 mm
5:15am 18/05/2026
2:15pm 18/05/2026
1 in 4.1 years
24.68 %
12h
159.0 mm
2:30am 18/05/2026
2:30pm 18/05/2026
1 in 5.6 years
17.8 %
18h
169.0 mm
8:30pm 17/05/2026
2:30pm 18/05/2026
1 in 3.9 years
25.44 %
24h
169.0 mm
2:30pm 17/05/2026
2:30pm 18/05/2026
1 in 2.9 years
34.09 %
30h
169.0 mm
8:30am 17/05/2026
2:30pm 18/05/2026
1 in 2.4 years
42.11 %
36h
169.0 mm
2:30am 17/05/2026
2:30pm 18/05/2026
1 in 2.0 years
50.4 %
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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