Dark mode
Light mode 3:45am 25/05/2026 to 3:45am 27/05/2026
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
3.6 mm
6:15am 26/05/2026
6:30am 26/05/2026
1 in 1.0 years
99.85 %
30m
5.0 mm
6:00am 26/05/2026
6:30am 26/05/2026
1 in 1.0 years
99.91 %
45m
5.8 mm
6:00am 26/05/2026
6:45am 26/05/2026
1 in 1 years
100.0 %
60m
6.2 mm
7:00am 26/05/2026
8:00am 26/05/2026
1 in 1 years
100.0 %
90m
8.2 mm
7:30am 26/05/2026
9:00am 26/05/2026
1 in 1.0 years
99.93 %
120m
12.0 mm
6:00am 26/05/2026
8:00am 26/05/2026
1 in 1.0 years
97.94 %
3h
16.2 mm
6:00am 26/05/2026
9:00am 26/05/2026
1 in 1.1 years
93.27 %
4h
19.0 mm
4:30am 26/05/2026
9:00am 26/05/2026
1 in 1.1 years
93.49 %
6h
19.2 mm
3:00am 26/05/2026
9:00am 26/05/2026
1 in 1.0 years
97.06 %
9h
27.8 mm
4:30am 26/05/2026
1:30pm 26/05/2026
1 in 1.1 years
88.22 %
12h
28.8 mm
2:15am 26/05/2026
2:15pm 26/05/2026
1 in 1.1 years
92.34 %
18h
33.8 mm
6:00am 26/05/2026
12:00am 27/05/2026
1 in 1.1 years
92.21 %
24h
45.6 mm
3:45am 26/05/2026
3:45am 27/05/2026
1 in 1.3 years
79.62 %
30h
45.8 mm
9:45pm 25/05/2026
3:45am 27/05/2026
1 in 1.2 years
86.57 %
36h
45.8 mm
3:45pm 25/05/2026
3:45am 27/05/2026
1 in 1.1 years
89.37 %
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
