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Light mode 9:30pm 16/05/2026 to 9:30pm 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
7.8 mm
12:15pm 18/05/2026
12:30pm 18/05/2026
1 in 1.0 years
99.43 %
30m
13.0 mm
12:15pm 18/05/2026
12:45pm 18/05/2026
1 in 1.0 years
98.21 %
45m
17.6 mm
12:00pm 18/05/2026
12:45pm 18/05/2026
1 in 1.1 years
95.02 %
60m
20.0 mm
12:00pm 18/05/2026
1:00pm 18/05/2026
1 in 1.1 years
92.83 %
90m
25.6 mm
11:30am 18/05/2026
1:00pm 18/05/2026
1 in 1.2 years
86.47 %
120m
28.4 mm
11:30am 18/05/2026
1:30pm 18/05/2026
1 in 1.2 years
83.51 %
3h
37.6 mm
10:00am 18/05/2026
1:00pm 18/05/2026
1 in 1.5 years
67.86 %
4h
46.6 mm
10:15am 18/05/2026
2:45pm 18/05/2026
1 in 1.7 years
59.03 %
6h
56.8 mm
10:00am 18/05/2026
4:00pm 18/05/2026
1 in 2.1 years
48.21 %
9h
72.8 mm
7:15am 18/05/2026
4:15pm 18/05/2026
1 in 2.7 years
37.54 %
12h
86.2 mm
4:30am 18/05/2026
4:30pm 18/05/2026
1 in 3.1 years
31.81 %
18h
94.6 mm
3:30am 18/05/2026
9:30pm 18/05/2026
1 in 2.6 years
38.57 %
24h
96.4 mm
9:30pm 17/05/2026
9:30pm 18/05/2026
1 in 2.1 years
48.52 %
30h
96.4 mm
3:30pm 17/05/2026
9:30pm 18/05/2026
1 in 1.8 years
56.71 %
36h
96.4 mm
9:30am 17/05/2026
9:30pm 18/05/2026
1 in 1.6 years
63.42 %
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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