4:00am 26/05/2026 to 4:00am 28/05/2026
Maximum observed rainfall by duration, estimated return period and AEP
Duration
Rainfall
Start
End
Years
AEP
15m
8.0 mm
2:00am 28/05/2026
2:15am 28/05/2026
1 in 1.0 years
99.08 %
30m
14.0 mm
1:45am 28/05/2026
2:15am 28/05/2026
1 in 1.0 years
97.13 %
45m
17.0 mm
1:30am 28/05/2026
2:15am 28/05/2026
1 in 1.0 years
96.41 %
60m
19.0 mm
1:30am 28/05/2026
2:30am 28/05/2026
1 in 1.0 years
96.18 %
90m
21.0 mm
1:00am 28/05/2026
2:30am 28/05/2026
1 in 1.0 years
96.55 %
120m
22.0 mm
12:45am 28/05/2026
2:45am 28/05/2026
1 in 1.0 years
97.21 %
3h
23.0 mm
12:15am 28/05/2026
3:15am 28/05/2026
1 in 1.0 years
98.21 %
4h
23.0 mm
10:45pm 27/05/2026
3:15am 28/05/2026
1 in 1.0 years
98.79 %
6h
23.0 mm
9:15pm 27/05/2026
3:15am 28/05/2026
1 in 1.0 years
99.2 %
9h
23.0 mm
6:15pm 27/05/2026
3:15am 28/05/2026
1 in 1.0 years
99.76 %
12h
23.0 mm
3:15pm 27/05/2026
3:15am 28/05/2026
1 in 1.0 years
99.85 %
18h
23.0 mm
9:15am 27/05/2026
3:15am 28/05/2026
1 in 1.0 years
99.98 %
24h
23.0 mm
3:15am 27/05/2026
3:15am 28/05/2026
1 in 1 years
100.0 %
30h
23.0 mm
9:15pm 26/05/2026
3:15am 28/05/2026
1 in 1 years
100.0 %
36h
23.0 mm
3:15pm 26/05/2026
3:15am 28/05/2026
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.

