Dark mode
Light mode10:30pm 24/05/2026 to 10:30pm 26/05/2026
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
1.8 mm
9:20am 26/05/2026
9:30am 26/05/2026
1 in 1 years
100.0 %
15m
0.0 mm
7:12am 25/05/2026
7:27am 25/05/2026
1 in 1 years
100.0 %
20m
6.6 mm
6:30am 26/05/2026
6:50am 26/05/2026
1 in 1 years
100.0 %
25m
0.0 mm
7:45am 25/05/2026
8:10am 25/05/2026
1 in 1 years
100.0 %
30m
6.6 mm
6:20am 26/05/2026
6:50am 26/05/2026
1 in 1 years
100.0 %
45m
0.0 mm
7:00am 25/05/2026
7:45am 25/05/2026
1 in 1 years
100.0 %
60m
8.6 mm
9:20am 26/05/2026
10:20am 26/05/2026
1 in 1 years
100.0 %
90m
10.0 mm
9:20am 26/05/2026
10:50am 26/05/2026
1 in 1 years
100.0 %
120m
11.0 mm
8:40am 26/05/2026
10:40am 26/05/2026
1 in 1 years
100.0 %
3h
12.2 mm
8:30am 26/05/2026
11:30am 26/05/2026
1 in 1 years
100.0 %
4h
19.0 mm
6:30am 26/05/2026
11:00am 26/05/2026
1 in 1.0 years
99.94 %
6h
19.2 mm
5:30am 26/05/2026
11:30am 26/05/2026
1 in 1 years
100.0 %
9h
21.2 mm
4:50am 26/05/2026
1:50pm 26/05/2026
1 in 1 years
100.0 %
12h
22.0 mm
6:30am 26/05/2026
6:30pm 26/05/2026
1 in 1 years
100.0 %
18h
26.2 mm
4:20am 26/05/2026
10:20pm 26/05/2026
1 in 1 years
100.0 %
24h
26.2 mm
9:20pm 25/05/2026
9:20pm 26/05/2026
1 in 1 years
100.0 %
30h
26.4 mm
4:20pm 25/05/2026
10:20pm 26/05/2026
1 in 1 years
100.0 %
36h
26.4 mm
10:20am 25/05/2026
10:20pm 26/05/2026
1 in 1 years
100.0 %
48h
29.6 mm
10:30pm 24/05/2026
10:30pm 26/05/2026
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.
Install
