5:30am 21/05/2026 to 5:30am 23/05/2026
Maximum observed rainfall by duration, estimated return period and AEP
Duration
Rainfall
Start
End
Years
AEP
15m
1.0 mm
11:30am 21/05/2026
11:45am 21/05/2026
1 in 1 years
100.0 %
30m
2.0 mm
6:30pm 21/05/2026
7:00pm 21/05/2026
1 in 1 years
100.0 %
45m
3.0 mm
7:30pm 21/05/2026
8:15pm 21/05/2026
1 in 1 years
100.0 %
60m
3.0 mm
7:15pm 21/05/2026
8:15pm 21/05/2026
1 in 1 years
100.0 %
90m
5.0 mm
3:30am 23/05/2026
5:00am 23/05/2026
1 in 1 years
100.0 %
120m
6.0 mm
3:30am 23/05/2026
5:30am 23/05/2026
1 in 1 years
100.0 %
3h
7.0 mm
5:45pm 21/05/2026
8:45pm 21/05/2026
1 in 1 years
100.0 %
4h
8.0 mm
5:30pm 21/05/2026
10:00pm 21/05/2026
1 in 1 years
100.0 %
6h
8.0 mm
4:00pm 21/05/2026
10:00pm 21/05/2026
1 in 1 years
100.0 %
9h
8.0 mm
1:00pm 21/05/2026
10:00pm 21/05/2026
1 in 1 years
100.0 %
12h
10.0 mm
4:45pm 21/05/2026
4:45am 22/05/2026
1 in 1 years
100.0 %
18h
11.0 mm
10:45am 21/05/2026
4:45am 22/05/2026
1 in 1 years
100.0 %
24h
11.0 mm
5:45am 21/05/2026
5:45am 22/05/2026
1 in 1 years
100.0 %
30h
11.0 mm
5:45am 21/05/2026
11:45am 22/05/2026
1 in 1 years
100.0 %
36h
17.0 mm
5:30pm 21/05/2026
5:30am 23/05/2026
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.

