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Light mode12:30am 20/05/2026 to 12:30am 22/05/2026
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
3.0 mm
10:45pm 21/05/2026
11:00pm 21/05/2026
1 in 1 years
100.0 %
30m
3.0 mm
10:30pm 21/05/2026
11:00pm 21/05/2026
1 in 1 years
100.0 %
45m
4.0 mm
10:15pm 21/05/2026
11:00pm 21/05/2026
1 in 1 years
100.0 %
60m
4.0 mm
10:00pm 21/05/2026
11:00pm 21/05/2026
1 in 1 years
100.0 %
90m
6.0 mm
10:45pm 21/05/2026
12:15am 22/05/2026
1 in 1 years
100.0 %
120m
7.0 mm
10:15pm 21/05/2026
12:15am 22/05/2026
1 in 1 years
100.0 %
3h
7.0 mm
9:15pm 21/05/2026
12:15am 22/05/2026
1 in 1 years
100.0 %
4h
7.0 mm
7:45pm 21/05/2026
12:15am 22/05/2026
1 in 1 years
100.0 %
6h
7.0 mm
6:15pm 21/05/2026
12:15am 22/05/2026
1 in 1 years
100.0 %
9h
7.0 mm
3:15pm 21/05/2026
12:15am 22/05/2026
1 in 1 years
100.0 %
12h
7.0 mm
12:15pm 21/05/2026
12:15am 22/05/2026
1 in 1 years
100.0 %
18h
7.0 mm
6:15am 21/05/2026
12:15am 22/05/2026
1 in 1 years
100.0 %
24h
7.0 mm
12:15am 21/05/2026
12:15am 22/05/2026
1 in 1 years
100.0 %
30h
7.0 mm
6:15pm 20/05/2026
12:15am 22/05/2026
1 in 1 years
100.0 %
36h
7.0 mm
12:15pm 20/05/2026
12:15am 22/05/2026
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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