8:45pm 11/05/2026 to 8:45pm 13/05/2026
Maximum observed rainfall by duration, estimated return period and AEP
Duration
Rainfall
Start
End
Years
AEP
15m
10.0 mm
6:45pm 13/05/2026
7:00pm 13/05/2026
1 in 1.0 years
99.4 %
30m
13.0 mm
6:30pm 13/05/2026
7:00pm 13/05/2026
1 in 1.0 years
99.7 %
45m
15.0 mm
6:30pm 13/05/2026
7:15pm 13/05/2026
1 in 1.0 years
99.71 %
60m
15.0 mm
6:15pm 13/05/2026
7:15pm 13/05/2026
1 in 1.0 years
99.87 %
90m
15.0 mm
5:45pm 13/05/2026
7:15pm 13/05/2026
1 in 1 years
100.0 %
120m
16.0 mm
5:15pm 13/05/2026
7:15pm 13/05/2026
1 in 1 years
100.0 %
3h
16.0 mm
4:15pm 13/05/2026
7:15pm 13/05/2026
1 in 1 years
100.0 %
4h
16.0 mm
2:45pm 13/05/2026
7:15pm 13/05/2026
1 in 1 years
100.0 %
6h
16.0 mm
1:15pm 13/05/2026
7:15pm 13/05/2026
1 in 1 years
100.0 %
9h
19.0 mm
10:15am 13/05/2026
7:15pm 13/05/2026
1 in 1 years
100.0 %
12h
19.0 mm
7:15am 13/05/2026
7:15pm 13/05/2026
1 in 1 years
100.0 %
18h
20.0 mm
1:15am 13/05/2026
7:15pm 13/05/2026
1 in 1 years
100.0 %
24h
20.0 mm
7:15pm 12/05/2026
7:15pm 13/05/2026
1 in 1 years
100.0 %
30h
27.0 mm
1:15pm 12/05/2026
7:15pm 13/05/2026
1 in 1 years
100.0 %
36h
28.0 mm
7:15am 12/05/2026
7:15pm 13/05/2026
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.

