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Light mode12:45am 12/05/2026 to 12:45am 14/05/2026
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
4.8 mm
9:15am 13/05/2026
9:30am 13/05/2026
1 in 1 years
100.0 %
30m
7.0 mm
9:15am 13/05/2026
9:45am 13/05/2026
1 in 1 years
100.0 %
45m
7.4 mm
9:00am 13/05/2026
9:45am 13/05/2026
1 in 1 years
100.0 %
60m
8.6 mm
8:45am 13/05/2026
9:45am 13/05/2026
1 in 1 years
100.0 %
90m
11.0 mm
8:15am 13/05/2026
9:45am 13/05/2026
1 in 1 years
100.0 %
120m
14.4 mm
7:45am 13/05/2026
9:45am 13/05/2026
1 in 1 years
100.0 %
3h
19.4 mm
6:45am 13/05/2026
9:45am 13/05/2026
1 in 1 years
100.0 %
4h
21.6 mm
5:30am 13/05/2026
10:00am 13/05/2026
1 in 1 years
100.0 %
6h
21.6 mm
4:00am 13/05/2026
10:00am 13/05/2026
1 in 1 years
100.0 %
9h
22.2 mm
5:30am 13/05/2026
2:30pm 13/05/2026
1 in 1 years
100.0 %
12h
22.6 mm
10:00pm 12/05/2026
10:00am 13/05/2026
1 in 1 years
100.0 %
18h
23.2 mm
8:30pm 12/05/2026
2:30pm 13/05/2026
1 in 1 years
100.0 %
24h
26.2 mm
10:00am 12/05/2026
10:00am 13/05/2026
1 in 1 years
100.0 %
30h
27.0 mm
4:00am 12/05/2026
10:00am 13/05/2026
1 in 1 years
100.0 %
36h
27.6 mm
1:15am 12/05/2026
1:15pm 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.
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