3:00am 16/06/2026 to 3:00am 18/06/2026
Maximum observed rainfall by duration, estimated return period and AEP
Duration
Rainfall
Start
End
Years
AEP
10m
2.8 mm
9:10pm 16/06/2026
9:20pm 16/06/2026
1 in 1.0 years
99.3 %
20m
5.4 mm
9:00pm 16/06/2026
9:20pm 16/06/2026
1 in 1.0 years
96.4 %
30m
7.2 mm
9:00pm 16/06/2026
9:30pm 16/06/2026
1 in 1.1 years
93.13 %
60m
8.2 mm
9:00pm 16/06/2026
10:00pm 16/06/2026
1 in 1.0 years
95.83 %
90m
8.4 mm
8:30pm 16/06/2026
10:00pm 16/06/2026
1 in 1.0 years
97.48 %
120m
8.4 mm
8:00pm 16/06/2026
10:00pm 16/06/2026
1 in 1.0 years
98.38 %
3h
8.4 mm
7:00pm 16/06/2026
10:00pm 16/06/2026
1 in 1.0 years
98.97 %
4h
8.6 mm
5:30pm 16/06/2026
10:00pm 16/06/2026
1 in 1.0 years
99.46 %
6h
8.8 mm
6:00pm 16/06/2026
12:00am 17/06/2026
1 in 1.0 years
99.76 %
9h
9.6 mm
3:00pm 16/06/2026
12:00am 17/06/2026
1 in 1.0 years
99.8 %
12h
12.2 mm
10:20am 16/06/2026
10:20pm 16/06/2026
1 in 1.0 years
99.3 %
18h
15.6 mm
3:40am 16/06/2026
9:40pm 16/06/2026
1 in 1.0 years
98.76 %
24h
16.6 mm
3:00am 16/06/2026
3:00am 17/06/2026
1 in 1.0 years
98.82 %
30h
16.6 mm
3:00am 16/06/2026
9:00am 17/06/2026
1 in 1.0 years
99.05 %
36h
16.8 mm
3:00am 16/06/2026
3:00pm 17/06/2026
1 in 1.0 years
99.17 %
48h
16.8 mm
3:00am 16/06/2026
3:00am 18/06/2026
1 in 1.0 years
99.4 %
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.

