5:15am 18/01/2026 to 5:15am 20/01/2026
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
5.0 mm
2:30pm 18/01/2026
2:45pm 18/01/2026
1 in 1 years
100.0 %
30m
6.2 mm
2:30pm 18/01/2026
3:00pm 18/01/2026
1 in 1 years
100.0 %
45m
6.6 mm
2:30pm 18/01/2026
3:15pm 18/01/2026
1 in 1 years
100.0 %
60m
6.6 mm
2:30pm 18/01/2026
3:30pm 18/01/2026
1 in 1 years
100.0 %
90m
6.6 mm
2:30pm 18/01/2026
4:00pm 18/01/2026
1 in 1 years
100.0 %
120m
6.6 mm
2:30pm 18/01/2026
4:30pm 18/01/2026
1 in 1 years
100.0 %
3h
7.6 mm
2:30pm 18/01/2026
5:30pm 18/01/2026
1 in 1 years
100.0 %
4h
8.2 mm
2:30pm 18/01/2026
7:00pm 18/01/2026
1 in 1 years
100.0 %
6h
12.4 mm
2:30pm 18/01/2026
8:30pm 18/01/2026
1 in 1 years
100.0 %
9h
11.0 mm
10:45am 18/01/2026
7:45pm 18/01/2026
1 in 1 years
100.0 %
12h
13.8 mm
8:15am 18/01/2026
8:15pm 18/01/2026
1 in 1 years
100.0 %
18h
12.8 mm
1:15pm 18/01/2026
7:15am 19/01/2026
1 in 1 years
100.0 %
24h
18.4 mm
2:00pm 18/01/2026
2:00pm 19/01/2026
1 in 1 years
100.0 %
30h
20.2 mm
7:45am 18/01/2026
1:45pm 19/01/2026
1 in 1 years
100.0 %
36h
19.0 mm
8:45am 18/01/2026
8:45pm 19/01/2026
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.