11:30am 11/02/2026 to 11:30am 13/02/2026
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
4.6 mm
8:30pm 11/02/2026
8:40pm 11/02/2026
1 in 1.0 years
98.11 %
20m
7.0 mm
8:20pm 11/02/2026
8:40pm 11/02/2026
1 in 1.0 years
96.52 %
30m
8.8 mm
8:20pm 11/02/2026
8:50pm 11/02/2026
1 in 1.0 years
95.44 %
60m
12.8 mm
8:10pm 11/02/2026
9:10pm 11/02/2026
1 in 1.1 years
91.97 %
90m
14.2 mm
8:20pm 11/02/2026
9:50pm 11/02/2026
1 in 1.0 years
96.81 %
120m
17.6 mm
8:10pm 11/02/2026
10:10pm 11/02/2026
1 in 1.1 years
92.71 %
3h
20.8 mm
7:30pm 11/02/2026
10:30pm 11/02/2026
1 in 1.0 years
95.37 %
4h
24.6 mm
6:10pm 11/02/2026
10:40pm 11/02/2026
1 in 1.0 years
96.93 %
6h
27.0 mm
4:20pm 11/02/2026
10:20pm 11/02/2026
1 in 1.0 years
98.42 %
9h
30.6 mm
6:50pm 11/02/2026
3:50am 12/02/2026
1 in 1.0 years
99.34 %
12h
35.6 mm
4:10pm 11/02/2026
4:10am 12/02/2026
1 in 1.0 years
99.22 %
18h
36.2 mm
2:20pm 11/02/2026
8:20am 12/02/2026
1 in 1 years
100.0 %
24h
37.8 mm
12:30pm 11/02/2026
12:30pm 12/02/2026
1 in 1 years
100.0 %
30h
37.8 mm
11:30am 11/02/2026
5:30pm 12/02/2026
1 in 1 years
100.0 %
36h
37.8 mm
11:30am 11/02/2026
11:30pm 12/02/2026
1 in 1 years
100.0 %
48h
37.8 mm
11:30am 11/02/2026
11:30am 13/02/2026
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.