Dark mode
Light mode 1:20pm 17/06/2026 to 1:20pm 19/06/2026
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
2.6 mm
10:30am 19/06/2026
10:40am 19/06/2026
1 in 1 years
100.0 %
20m
3.2 mm
10:20am 19/06/2026
10:40am 19/06/2026
1 in 1 years
100.0 %
30m
4.2 mm
10:10am 19/06/2026
10:40am 19/06/2026
1 in 1 years
100.0 %
60m
5.4 mm
9:40am 19/06/2026
10:40am 19/06/2026
1 in 1 years
100.0 %
90m
6.6 mm
9:10am 19/06/2026
10:40am 19/06/2026
1 in 1 years
100.0 %
120m
6.6 mm
8:40am 19/06/2026
10:40am 19/06/2026
1 in 1 years
100.0 %
3h
8.0 mm
7:20pm 18/06/2026
10:20pm 18/06/2026
1 in 1 years
100.0 %
4h
8.6 mm
7:30pm 18/06/2026
12:00am 19/06/2026
1 in 1 years
100.0 %
6h
9.2 mm
7:00pm 18/06/2026
1:00am 19/06/2026
1 in 1 years
100.0 %
9h
10.6 mm
3:00am 19/06/2026
12:00pm 19/06/2026
1 in 1 years
100.0 %
12h
12.2 mm
6:40pm 18/06/2026
6:40am 19/06/2026
1 in 1 years
100.0 %
18h
20.2 mm
6:00pm 18/06/2026
12:00pm 19/06/2026
1 in 1.0 years
99.39 %
24h
20.2 mm
12:00pm 18/06/2026
12:00pm 19/06/2026
1 in 1.0 years
99.76 %
30h
20.2 mm
6:00am 18/06/2026
12:00pm 19/06/2026
1 in 1.0 years
99.81 %
36h
20.2 mm
12:00am 18/06/2026
12:00pm 19/06/2026
1 in 1.0 years
99.85 %
48h
20.2 mm
1:20pm 17/06/2026
1:20pm 19/06/2026
1 in 1.0 years
99.9 %
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.
Install
