Dark mode
Light mode-35.26107, 149.10016
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
9.1 mm
8:00am 25/02/2018
8:10am 25/02/2018
1 in 1.9 years
53.57 %
20m
16.5 mm
8:00am 25/02/2018
8:20am 25/02/2018
1 in 3.5 years
28.23 %
30m
23.7 mm
8:00am 25/02/2018
8:30am 25/02/2018
1 in 6.9 years
14.4 %
60m
43.3 mm
7:50am 25/02/2018
8:50am 25/02/2018
1 in 37.6 years
2.66 %
90m
54.7 mm
7:20am 25/02/2018
8:50am 25/02/2018
1 in 67.5 years
1.48 %
120m
59.8 mm
7:20am 25/02/2018
9:20am 25/02/2018
1 in 67.0 years
1.49 %
3h
63.0 mm
7:00am 25/02/2018
10:00am 25/02/2018
1 in 45.3 years
2.21 %
4h
71.1 mm
7:10am 25/02/2018
11:40am 25/02/2018
1 in 43.6 years
2.29 %
6h
72.7 mm
6:30am 25/02/2018
12:30pm 25/02/2018
1 in 31.3 years
3.19 %
9h
74.2 mm
2:50am 25/02/2018
11:50am 25/02/2018
1 in 18.9 years
5.3 %
12h
76.0 mm
1:40am 25/02/2018
1:40pm 25/02/2018
1 in 13.9 years
7.18 %
18h
82.6 mm
6:40pm 24/02/2018
12:40pm 25/02/2018
1 in 11.3 years
8.85 %
24h
88.1 mm
6:30am 25/02/2018
6:30am 26/02/2018
1 in 10.1 years
9.95 %
30h
91.2 mm
1:40am 25/02/2018
7:40am 26/02/2018
1 in 8.8 years
11.39 %
36h
97.8 mm
5:50pm 24/02/2018
5:50am 26/02/2018
1 in 9.4 years
10.69 %
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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