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Light mode12:15pm 14/05/2026 to 12:15pm 16/05/2026
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
15m
5.0 mm
9:45am 16/05/2026
10:00am 16/05/2026
1 in 1 years
100.0 %
30m
6.0 mm
9:30am 16/05/2026
10:00am 16/05/2026
1 in 1 years
100.0 %
45m
6.0 mm
9:15am 16/05/2026
10:00am 16/05/2026
1 in 1 years
100.0 %
60m
7.0 mm
9:00am 16/05/2026
10:00am 16/05/2026
1 in 1 years
100.0 %
90m
8.0 mm
8:30am 16/05/2026
10:00am 16/05/2026
1 in 1 years
100.0 %
120m
11.0 mm
8:00am 16/05/2026
10:00am 16/05/2026
1 in 1 years
100.0 %
3h
11.0 mm
7:00am 16/05/2026
10:00am 16/05/2026
1 in 1 years
100.0 %
4h
13.0 mm
5:30am 16/05/2026
10:00am 16/05/2026
1 in 1 years
100.0 %
6h
15.0 mm
4:00am 16/05/2026
10:00am 16/05/2026
1 in 1 years
100.0 %
9h
16.0 mm
1:00am 16/05/2026
10:00am 16/05/2026
1 in 1 years
100.0 %
12h
17.0 mm
10:00pm 15/05/2026
10:00am 16/05/2026
1 in 1 years
100.0 %
18h
17.0 mm
4:00pm 15/05/2026
10:00am 16/05/2026
1 in 1 years
100.0 %
24h
18.0 mm
10:00am 15/05/2026
10:00am 16/05/2026
1 in 1 years
100.0 %
30h
21.0 mm
4:00am 15/05/2026
10:00am 16/05/2026
1 in 1 years
100.0 %
36h
27.0 mm
10:00pm 14/05/2026
10:00am 16/05/2026
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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