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1:40am 09/05/2026 to 1:40am 11/05/2026
You can find out more about Design Rainfall and IFD here.
Observations for this analysis :
Maximum observed rainfall by duration, estimated return period and AEP
Duration
Rainfall
Start
End
Years
AEP
10m
0.4 mm
5:00pm 10/05/2026
5:10pm 10/05/2026
1 in 1 years
100.0 %
20m
0.4 mm
4:50pm 10/05/2026
5:10pm 10/05/2026
1 in 1 years
100.0 %
30m
0.4 mm
4:40pm 10/05/2026
5:10pm 10/05/2026
1 in 1 years
100.0 %
60m
0.4 mm
4:10pm 10/05/2026
5:10pm 10/05/2026
1 in 1 years
100.0 %
90m
0.4 mm
3:40pm 10/05/2026
5:10pm 10/05/2026
1 in 1 years
100.0 %
120m
0.4 mm
3:10pm 10/05/2026
5:10pm 10/05/2026
1 in 1 years
100.0 %
3h
0.4 mm
8:10am 10/05/2026
11:10am 10/05/2026
1 in 1 years
100.0 %
4h
0.4 mm
6:40am 10/05/2026
11:10am 10/05/2026
1 in 1 years
100.0 %
6h
0.4 mm
5:10am 10/05/2026
11:10am 10/05/2026
1 in 1 years
100.0 %
9h
0.8 mm
8:10am 10/05/2026
5:10pm 10/05/2026
1 in 1 years
100.0 %
12h
0.8 mm
5:10am 10/05/2026
5:10pm 10/05/2026
1 in 1 years
100.0 %
18h
1.0 mm
6:20am 10/05/2026
12:20am 11/05/2026
1 in 1 years
100.0 %
24h
1.0 mm
12:20am 10/05/2026
12:20am 11/05/2026
1 in 1 years
100.0 %
30h
1.0 mm
6:20pm 09/05/2026
12:20am 11/05/2026
1 in 1 years
100.0 %
36h
1.0 mm
12:20pm 09/05/2026
12:20am 11/05/2026
1 in 1 years
100.0 %
48h
1.0 mm
1:40am 09/05/2026
1:40am 11/05/2026
1 in 1 years
100.0 %
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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