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12:50am 12/05/2026 to 12:50am 14/05/2026
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
2.6 mm
9:00pm 13/05/2026
9:10pm 13/05/2026
1 in 1 years
100.0 %
20m
2.8 mm
9:00pm 13/05/2026
9:20pm 13/05/2026
1 in 1 years
100.0 %
30m
2.8 mm
9:00pm 13/05/2026
9:30pm 13/05/2026
1 in 1 years
100.0 %
60m
2.8 mm
9:00pm 13/05/2026
10:00pm 13/05/2026
1 in 1 years
100.0 %
90m
3.0 mm
12:30am 13/05/2026
2:00am 13/05/2026
1 in 1 years
100.0 %
120m
3.6 mm
12:40am 13/05/2026
2:40am 13/05/2026
1 in 1 years
100.0 %
3h
4.2 mm
12:00am 13/05/2026
3:00am 13/05/2026
1 in 1 years
100.0 %
4h
5.0 mm
10:30pm 12/05/2026
3:00am 13/05/2026
1 in 1 years
100.0 %
6h
5.6 mm
9:40pm 12/05/2026
3:40am 13/05/2026
1 in 1 years
100.0 %
9h
5.6 mm
9:40pm 12/05/2026
6:40am 13/05/2026
1 in 1 years
100.0 %
12h
6.2 mm
3:00pm 12/05/2026
3:00am 13/05/2026
1 in 1 years
100.0 %
18h
6.4 mm
9:00am 12/05/2026
3:00am 13/05/2026
1 in 1 years
100.0 %
24h
9.2 mm
9:40pm 12/05/2026
9:40pm 13/05/2026
1 in 1 years
100.0 %
30h
9.8 mm
3:20pm 12/05/2026
9:20pm 13/05/2026
1 in 1 years
100.0 %
36h
10.0 mm
9:20am 12/05/2026
9:20pm 13/05/2026
1 in 1 years
100.0 %
48h
10.8 mm
12:50am 12/05/2026
12:50am 14/05/2026
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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