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Light mode11:45pm 11/06/2026 to 11:45pm 13/06/2026
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
2:30am 12/06/2026
2:45am 12/06/2026
1 in 1.1 years
94.12 %
30m
5.4 mm
2:30am 12/06/2026
3:00am 12/06/2026
1 in 1.0 years
98.09 %
45m
5.4 mm
2:15am 12/06/2026
3:00am 12/06/2026
1 in 1.0 years
98.79 %
60m
5.4 mm
2:00am 12/06/2026
3:00am 12/06/2026
1 in 1.0 years
99.21 %
90m
5.4 mm
1:30am 12/06/2026
3:00am 12/06/2026
1 in 1.0 years
99.75 %
120m
5.4 mm
1:00am 12/06/2026
3:00am 12/06/2026
1 in 1.0 years
99.82 %
3h
5.4 mm
12:00am 12/06/2026
3:00am 12/06/2026
1 in 1.0 years
99.91 %
4h
10.0 mm
1:30am 12/06/2026
6:00am 12/06/2026
1 in 1.0 years
98.51 %
6h
10.0 mm
12:00am 12/06/2026
6:00am 12/06/2026
1 in 1.0 years
98.81 %
9h
11.4 mm
12:00am 12/06/2026
9:00am 12/06/2026
1 in 1.0 years
98.69 %
12h
11.6 mm
12:00am 12/06/2026
12:00pm 12/06/2026
1 in 1.0 years
98.89 %
18h
18.2 mm
12:00am 12/06/2026
6:00pm 12/06/2026
1 in 1.0 years
96.05 %
24h
18.2 mm
12:00am 12/06/2026
12:00am 13/06/2026
1 in 1.0 years
96.88 %
30h
18.2 mm
12:00am 12/06/2026
6:00am 13/06/2026
1 in 1.0 years
97.5 %
36h
18.2 mm
12:00am 12/06/2026
12:00pm 13/06/2026
1 in 1.0 years
97.94 %
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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