7:40pm 04/05/2026 to 7:40pm 06/05/2026
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
10m
2.6 mm
11:10pm 04/05/2026
11:20pm 04/05/2026
1 in 1 years
100.0 %
20m
4.2 mm
1:30am 05/05/2026
1:50am 05/05/2026
1 in 1 years
100.0 %
30m
6.0 mm
1:20am 05/05/2026
1:50am 05/05/2026
1 in 1 years
100.0 %
60m
9.6 mm
1:10am 05/05/2026
2:10am 05/05/2026
1 in 1.0 years
99.78 %
90m
11.8 mm
1:20am 05/05/2026
2:50am 05/05/2026
1 in 1.0 years
99.45 %
120m
14.6 mm
1:10am 05/05/2026
3:10am 05/05/2026
1 in 1.0 years
98.62 %
3h
15.6 mm
1:00am 05/05/2026
4:00am 05/05/2026
1 in 1.0 years
99.07 %
4h
21.6 mm
10:30pm 04/05/2026
3:00am 05/05/2026
1 in 1.0 years
96.63 %
6h
23.8 mm
10:00pm 04/05/2026
4:00am 05/05/2026
1 in 1.0 years
96.57 %
9h
28.4 mm
9:20pm 04/05/2026
6:20am 05/05/2026
1 in 1.0 years
95.56 %
12h
28.8 mm
10:00pm 04/05/2026
10:00am 05/05/2026
1 in 1.0 years
97.29 %
18h
28.8 mm
7:40pm 04/05/2026
1:40pm 05/05/2026
1 in 1.0 years
98.74 %
24h
28.8 mm
7:40pm 04/05/2026
7:40pm 05/05/2026
1 in 1.0 years
99.29 %
30h
28.8 mm
7:40pm 04/05/2026
1:40am 06/05/2026
1 in 1.0 years
99.66 %
36h
28.8 mm
7:40pm 04/05/2026
7:40am 06/05/2026
1 in 1.0 years
99.79 %
48h
28.8 mm
7:40pm 04/05/2026
7:40pm 06/05/2026
1 in 1.0 years
99.88 %
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.