Dark mode
Light mode 3:50pm 14/05/2026 to 3:50pm 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
10m
2.4 mm
2:00pm 16/05/2026
2:10pm 16/05/2026
1 in 1.0 years
98.2 %
20m
3.4 mm
1:50pm 16/05/2026
2:10pm 16/05/2026
1 in 1.0 years
98.13 %
30m
4.4 mm
1:50pm 16/05/2026
2:20pm 16/05/2026
1 in 1.0 years
96.82 %
60m
6.0 mm
1:40pm 16/05/2026
2:40pm 16/05/2026
1 in 1.0 years
95.87 %
90m
6.8 mm
1:40pm 16/05/2026
3:10pm 16/05/2026
1 in 1.0 years
95.93 %
120m
7.2 mm
1:30pm 16/05/2026
3:30pm 16/05/2026
1 in 1.0 years
96.41 %
3h
7.2 mm
12:50pm 16/05/2026
3:50pm 16/05/2026
1 in 1.0 years
98.17 %
4h
8.2 mm
9:50am 16/05/2026
2:20pm 16/05/2026
1 in 1.0 years
98.08 %
6h
10.0 mm
9:20am 16/05/2026
3:20pm 16/05/2026
1 in 1.0 years
96.54 %
9h
10.0 mm
6:20am 16/05/2026
3:20pm 16/05/2026
1 in 1.0 years
98.13 %
12h
10.0 mm
3:20am 16/05/2026
3:20pm 16/05/2026
1 in 1.0 years
98.44 %
18h
10.0 mm
9:20pm 15/05/2026
3:20pm 16/05/2026
1 in 1.0 years
98.76 %
24h
10.0 mm
3:20pm 15/05/2026
3:20pm 16/05/2026
1 in 1.0 years
98.95 %
30h
10.0 mm
9:20am 15/05/2026
3:20pm 16/05/2026
1 in 1.0 years
99.08 %
36h
10.0 mm
3:20am 15/05/2026
3:20pm 16/05/2026
1 in 1.0 years
99.16 %
48h
10.0 mm
3:50pm 14/05/2026
3:50pm 16/05/2026
1 in 1.0 years
99.26 %
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
