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Light mode 7:45am 15/05/2026 to 7:45am 17/05/2026
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
5.0 mm
12:45pm 15/05/2026
1:00pm 15/05/2026
1 in 1 years
100.0 %
30m
5.5 mm
12:45pm 15/05/2026
1:15pm 15/05/2026
1 in 1 years
100.0 %
45m
5.5 mm
12:30pm 15/05/2026
1:15pm 15/05/2026
1 in 1 years
100.0 %
60m
5.5 mm
12:15pm 15/05/2026
1:15pm 15/05/2026
1 in 1 years
100.0 %
90m
7.5 mm
11:30am 15/05/2026
1:00pm 15/05/2026
1 in 1 years
100.0 %
120m
8.0 mm
11:15am 15/05/2026
1:15pm 15/05/2026
1 in 1 years
100.0 %
3h
8.0 mm
10:15am 15/05/2026
1:15pm 15/05/2026
1 in 1 years
100.0 %
4h
8.0 mm
8:45am 15/05/2026
1:15pm 15/05/2026
1 in 1 years
100.0 %
6h
9.0 mm
10:15am 15/05/2026
4:15pm 15/05/2026
1 in 1 years
100.0 %
9h
9.0 mm
8:00am 15/05/2026
5:00pm 15/05/2026
1 in 1 years
100.0 %
12h
9.5 mm
11:15am 16/05/2026
11:15pm 16/05/2026
1 in 1 years
100.0 %
18h
12.5 mm
6:15am 16/05/2026
12:15am 17/05/2026
1 in 1 years
100.0 %
24h
13.5 mm
5:30am 16/05/2026
5:30am 17/05/2026
1 in 1 years
100.0 %
30h
18.0 mm
9:45am 15/05/2026
3:45pm 16/05/2026
1 in 1 years
100.0 %
36h
21.5 mm
11:15am 15/05/2026
11:15pm 16/05/2026
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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