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7:45am 14/05/2026 to 7:45am 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
15m
2.0 mm
9:15pm 14/05/2026
9:30pm 14/05/2026
1 in 1 years
100.0 %
30m
4.0 mm
6:00am 16/05/2026
6:30am 16/05/2026
1 in 1 years
100.0 %
45m
5.0 mm
11:30pm 14/05/2026
12:15am 15/05/2026
1 in 1 years
100.0 %
60m
6.0 mm
11:15pm 14/05/2026
12:15am 15/05/2026
1 in 1 years
100.0 %
90m
8.0 mm
10:45pm 14/05/2026
12:15am 15/05/2026
1 in 1 years
100.0 %
120m
10.0 mm
10:45pm 14/05/2026
12:45am 15/05/2026
1 in 1 years
100.0 %
3h
12.0 mm
11:15pm 14/05/2026
2:15am 15/05/2026
1 in 1 years
100.0 %
4h
16.0 mm
10:45pm 14/05/2026
3:15am 15/05/2026
1 in 1 years
100.0 %
6h
19.0 mm
9:15pm 14/05/2026
3:15am 15/05/2026
1 in 1 years
100.0 %
9h
24.0 mm
7:30pm 14/05/2026
4:30am 15/05/2026
1 in 1 years
100.0 %
12h
29.0 mm
7:30pm 14/05/2026
7:30am 15/05/2026
1 in 1 years
100.0 %
18h
33.0 mm
4:15pm 14/05/2026
10:15am 15/05/2026
1 in 1 years
100.0 %
24h
40.0 mm
10:45pm 14/05/2026
10:45pm 15/05/2026
1 in 1 years
100.0 %
30h
52.0 mm
7:45pm 14/05/2026
1:45am 16/05/2026
1 in 1 years
100.0 %
36h
60.0 mm
6:30pm 14/05/2026
6:30am 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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