Dark mode
Light mode-35.23957, 149.13722
5:00pm 24/02/2018 to 12:00pm 26/02/2018
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
11.7 mm
8:00am 25/02/2018
8:10am 25/02/2018
1 in 3.5 years
28.26 %
20m
19.0 mm
7:50am 25/02/2018
8:10am 25/02/2018
1 in 5.7 years
17.39 %
30m
29.9 mm
7:40am 25/02/2018
8:10am 25/02/2018
1 in 20.8 years
4.82 %
60m
53.8 mm
7:40am 25/02/2018
8:40am 25/02/2018
1 in 147.8 years
0.68 %
90m
72.3 mm
7:20am 25/02/2018
8:50am 25/02/2018
1 in 343.4 years
0.29 %
120m
83.2 mm
7:10am 25/02/2018
9:10am 25/02/2018
1 in 438.8 years
0.23 %
3h
88.1 mm
7:10am 25/02/2018
10:10am 25/02/2018
1 in 289.8 years
0.35 %
4h
94.0 mm
7:10am 25/02/2018
11:40am 25/02/2018
1 in 197.1 years
0.51 %
6h
95.9 mm
6:50am 25/02/2018
12:50pm 25/02/2018
1 in 137.9 years
0.72 %
9h
96.8 mm
3:20am 25/02/2018
12:20pm 25/02/2018
1 in 74.1 years
1.35 %
12h
97.8 mm
1:50am 25/02/2018
1:50pm 25/02/2018
1 in 49.1 years
2.04 %
18h
102.5 mm
6:50pm 24/02/2018
12:50pm 25/02/2018
1 in 33.4 years
3.0 %
24h
109.2 mm
6:00am 25/02/2018
6:00am 26/02/2018
1 in 29.5 years
3.39 %
30h
111.2 mm
1:20am 25/02/2018
7:20am 26/02/2018
1 in 23.8 years
4.2 %
36h
115.5 mm
6:50pm 24/02/2018
6:50am 26/02/2018
1 in 22.1 years
4.52 %
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.
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