1:50am 17/05/2026 to 1:50am 19/05/2026
Maximum observed rainfall by duration, estimated return period and AEP
Duration
Rainfall
Start
End
Years
AEP
20m
0.8 mm
10:20pm 17/05/2026
10:40pm 17/05/2026
1 in 1 years
100.0 %
30m
1.8 mm
11:20pm 17/05/2026
11:50pm 17/05/2026
1 in 1 years
100.0 %
60m
3.4 mm
11:20pm 17/05/2026
12:20am 18/05/2026
1 in 1 years
100.0 %
90m
5.0 mm
10:20pm 17/05/2026
11:50pm 17/05/2026
1 in 1 years
100.0 %
120m
6.6 mm
10:20pm 17/05/2026
12:20am 18/05/2026
1 in 1 years
100.0 %
3h
8.4 mm
9:20pm 17/05/2026
12:20am 18/05/2026
1 in 1 years
100.0 %
4h
11.0 mm
8:50pm 17/05/2026
1:20am 18/05/2026
1 in 1 years
100.0 %
6h
12.2 mm
6:50pm 17/05/2026
12:50am 18/05/2026
1 in 1 years
100.0 %
9h
15.8 mm
4:50pm 17/05/2026
1:50am 18/05/2026
1 in 1.0 years
99.91 %
12h
16.2 mm
4:20pm 17/05/2026
4:20am 18/05/2026
1 in 1 years
100.0 %
18h
16.4 mm
10:20am 17/05/2026
4:20am 18/05/2026
1 in 1 years
100.0 %
24h
16.4 mm
4:20am 17/05/2026
4:20am 18/05/2026
1 in 1 years
100.0 %
30h
16.4 mm
1:50am 17/05/2026
7:50am 18/05/2026
1 in 1 years
100.0 %
36h
2.6 mm
2:50am 17/05/2026
2:50pm 18/05/2026
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.

