Dark mode
Light mode 3:30am 30/05/2026 to 3:30am 01/06/2026
You can find out more about Design Rainfall and IFD here.
Observations for this analysis :
Maximum observed rainfall by duration, estimated return period and AEP
Duration
Rainfall
Start
End
Years
AEP
15m
196.0 mm
12:30am 01/06/2026
12:45am 01/06/2026
1 in over 2000 years
< 0.05 %
30m
348.0 mm
12:15am 01/06/2026
12:45am 01/06/2026
1 in over 2000 years
< 0.05 %
45m
516.0 mm
12:00am 01/06/2026
12:45am 01/06/2026
1 in over 2000 years
< 0.05 %
60m
668.0 mm
11:45pm 31/05/2026
12:45am 01/06/2026
1 in over 2000 years
< 0.05 %
90m
729.0 mm
11:30pm 31/05/2026
1:00am 01/06/2026
1 in over 2000 years
< 0.05 %
120m
911.0 mm
10:45pm 31/05/2026
12:45am 01/06/2026
1 in over 2000 years
< 0.05 %
3h
1140.0 mm
9:45pm 31/05/2026
12:45am 01/06/2026
1 in over 2000 years
< 0.05 %
4h
1449.0 mm
9:15pm 31/05/2026
1:45am 01/06/2026
1 in over 2000 years
< 0.05 %
6h
1701.0 mm
8:45pm 31/05/2026
2:45am 01/06/2026
1 in over 2000 years
< 0.05 %
9h
1914.0 mm
6:30pm 31/05/2026
3:30am 01/06/2026
1 in over 2000 years
< 0.05 %
12h
1982.0 mm
3:30pm 31/05/2026
3:30am 01/06/2026
1 in over 2000 years
< 0.05 %
18h
1997.0 mm
9:30am 31/05/2026
3:30am 01/06/2026
1 in over 2000 years
< 0.05 %
24h
2000.0 mm
3:30am 31/05/2026
3:30am 01/06/2026
1 in over 2000 years
< 0.05 %
30h
2047.0 mm
9:30pm 30/05/2026
3:30am 01/06/2026
1 in over 2000 years
< 0.05 %
36h
2077.0 mm
3:30pm 30/05/2026
3:30am 01/06/2026
1 in over 2000 years
< 0.05 %
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.
Install
