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Light mode 9:40pm 17/05/2026 to 9:40pm 19/05/2026
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
10m
1.0 mm
12:20pm 18/05/2026
12:30pm 18/05/2026
1 in 1 years
100.0 %
20m
1.4 mm
12:20pm 18/05/2026
12:40pm 18/05/2026
1 in 1 years
100.0 %
30m
1.4 mm
12:10pm 18/05/2026
12:40pm 18/05/2026
1 in 1 years
100.0 %
60m
1.4 mm
11:40am 18/05/2026
12:40pm 18/05/2026
1 in 1 years
100.0 %
90m
1.6 mm
11:10am 18/05/2026
12:40pm 18/05/2026
1 in 1 years
100.0 %
120m
1.6 mm
10:40am 18/05/2026
12:40pm 18/05/2026
1 in 1 years
100.0 %
3h
2.2 mm
9:40am 18/05/2026
12:40pm 18/05/2026
1 in 1 years
100.0 %
4h
2.2 mm
8:10am 18/05/2026
12:40pm 18/05/2026
1 in 1 years
100.0 %
6h
2.2 mm
6:40am 18/05/2026
12:40pm 18/05/2026
1 in 1 years
100.0 %
9h
2.2 mm
3:40am 18/05/2026
12:40pm 18/05/2026
1 in 1 years
100.0 %
12h
3.4 mm
10:00am 18/05/2026
10:00pm 18/05/2026
1 in 1 years
100.0 %
18h
4.0 mm
9:50am 18/05/2026
3:50am 19/05/2026
1 in 1 years
100.0 %
24h
4.4 mm
12:00am 18/05/2026
12:00am 19/05/2026
1 in 1 years
100.0 %
30h
4.6 mm
11:10pm 17/05/2026
5:10am 19/05/2026
1 in 1 years
100.0 %
36h
4.6 mm
11:10pm 17/05/2026
11:10am 19/05/2026
1 in 1 years
100.0 %
48h
4.8 mm
9:40pm 17/05/2026
9:40pm 19/05/2026
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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