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
15m
1.2 mm
9:45am 25/05/2026
10:00am 25/05/2026
1 in 1 years
100.0 %
30m
1.8 mm
9:45am 25/05/2026
10:15am 25/05/2026
1 in 1 years
100.0 %
45m
1.8 mm
9:30am 25/05/2026
10:15am 25/05/2026
1 in 1 years
100.0 %
60m
1.8 mm
6:30pm 26/05/2026
7:30pm 26/05/2026
1 in 1 years
100.0 %
90m
2.2 mm
6:00pm 26/05/2026
7:30pm 26/05/2026
1 in 1 years
100.0 %
120m
2.8 mm
5:00pm 26/05/2026
7:00pm 26/05/2026
1 in 1 years
100.0 %
3h
4.2 mm
4:30pm 26/05/2026
7:30pm 26/05/2026
1 in 1 years
100.0 %
4h
4.4 mm
3:15pm 26/05/2026
7:45pm 26/05/2026
1 in 1 years
100.0 %
6h
4.4 mm
1:45pm 26/05/2026
7:45pm 26/05/2026
1 in 1 years
100.0 %
9h
4.6 mm
10:30am 26/05/2026
7:30pm 26/05/2026
1 in 1 years
100.0 %
12h
6.4 mm
9:00am 26/05/2026
9:00pm 26/05/2026
1 in 1 years
100.0 %
18h
7.2 mm
4:15am 26/05/2026
10:15pm 26/05/2026
1 in 1 years
100.0 %
24h
7.2 mm
10:15pm 25/05/2026
10:15pm 26/05/2026
1 in 1 years
100.0 %
30h
7.2 mm
4:15pm 25/05/2026
10:15pm 26/05/2026
1 in 1 years
100.0 %
36h
9.4 mm
7:45am 25/05/2026
7:45pm 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
