Dark mode
Light mode 4:00pm 11/05/2026 to 4:00pm 13/05/2026
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
0.8 mm
5:10am 12/05/2026
5:20am 12/05/2026
1 in 1 years
100.0 %
20m
1.2 mm
5:10am 12/05/2026
5:30am 12/05/2026
1 in 1 years
100.0 %
30m
1.2 mm
5:10am 12/05/2026
5:40am 12/05/2026
1 in 1 years
100.0 %
60m
1.6 mm
4:50am 12/05/2026
5:50am 12/05/2026
1 in 1 years
100.0 %
90m
1.6 mm
4:20am 12/05/2026
5:50am 12/05/2026
1 in 1 years
100.0 %
120m
1.6 mm
3:50am 12/05/2026
5:50am 12/05/2026
1 in 1 years
100.0 %
3h
2.0 mm
4:40am 12/05/2026
7:40am 12/05/2026
1 in 1 years
100.0 %
4h
2.0 mm
3:10am 12/05/2026
7:40am 12/05/2026
1 in 1 years
100.0 %
6h
2.2 mm
5:10am 12/05/2026
11:10am 12/05/2026
1 in 1 years
100.0 %
9h
2.6 mm
5:00am 12/05/2026
2:00pm 12/05/2026
1 in 1 years
100.0 %
12h
3.2 mm
4:00am 12/05/2026
4:00pm 12/05/2026
1 in 1 years
100.0 %
18h
3.4 mm
5:10am 12/05/2026
11:10pm 12/05/2026
1 in 1 years
100.0 %
24h
3.4 mm
5:10am 12/05/2026
5:10am 13/05/2026
1 in 1 years
100.0 %
30h
4.2 mm
3:50am 12/05/2026
9:50am 13/05/2026
1 in 1 years
100.0 %
36h
4.2 mm
9:50pm 11/05/2026
9:50am 13/05/2026
1 in 1 years
100.0 %
48h
4.4 mm
4:00pm 11/05/2026
4:00pm 13/05/2026
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
