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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
14.0 mm
12:15pm 18/05/2026
12:30pm 18/05/2026
1 in 1.1 years
90.65 %
30m
21.8 mm
12:15pm 18/05/2026
12:45pm 18/05/2026
1 in 1.2 years
81.56 %
45m
25.6 mm
12:00pm 18/05/2026
12:45pm 18/05/2026
1 in 1.2 years
80.55 %
60m
28.2 mm
12:00pm 18/05/2026
1:00pm 18/05/2026
1 in 1.2 years
80.72 %
90m
35.4 mm
12:00pm 18/05/2026
1:30pm 18/05/2026
1 in 1.4 years
71.08 %
120m
38.8 mm
12:00pm 18/05/2026
2:00pm 18/05/2026
1 in 1.4 years
71.42 %
3h
47.8 mm
9:45am 18/05/2026
12:45pm 18/05/2026
1 in 1.5 years
65.66 %
4h
65.8 mm
8:30am 18/05/2026
1:00pm 18/05/2026
1 in 2.0 years
50.38 %
6h
82.8 mm
8:30am 18/05/2026
2:30pm 18/05/2026
1 in 2.5 years
39.35 %
9h
116.8 mm
5:30am 18/05/2026
2:30pm 18/05/2026
1 in 3.8 years
26.44 %
12h
125.0 mm
2:30am 18/05/2026
2:30pm 18/05/2026
1 in 3.2 years
31.09 %
18h
139.0 mm
8:30pm 17/05/2026
2:30pm 18/05/2026
1 in 2.6 years
38.04 %
24h
140.0 mm
2:30pm 17/05/2026
2:30pm 18/05/2026
1 in 2.0 years
50.52 %
30h
140.0 mm
8:30am 17/05/2026
2:30pm 18/05/2026
1 in 1.7 years
58.01 %
36h
140.0 mm
2:30am 17/05/2026
2:30pm 18/05/2026
1 in 1.6 years
64.47 %
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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