Dark mode
Light mode-35.27523, 149.10875
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
7.6 mm
8:00am 25/02/2018
8:10am 25/02/2018
1 in 1.4 years
69.48 %
20m
14.9 mm
8:00am 25/02/2018
8:20am 25/02/2018
1 in 2.6 years
37.81 %
30m
21.8 mm
8:00am 25/02/2018
8:30am 25/02/2018
1 in 5.0 years
20.0 %
60m
34.7 mm
8:00am 25/02/2018
9:00am 25/02/2018
1 in 12.7 years
7.88 %
90m
41.7 mm
8:00am 25/02/2018
9:30am 25/02/2018
1 in 16.9 years
5.92 %
120m
46.7 mm
7:40am 25/02/2018
9:40am 25/02/2018
1 in 19.2 years
5.2 %
3h
50.3 mm
7:50am 25/02/2018
10:50am 25/02/2018
1 in 15.8 years
6.32 %
4h
59.2 mm
7:20am 25/02/2018
11:50am 25/02/2018
1 in 18.8 years
5.31 %
6h
61.0 mm
6:30am 25/02/2018
12:30pm 25/02/2018
1 in 14.5 years
6.9 %
9h
62.0 mm
3:40am 25/02/2018
12:40pm 25/02/2018
1 in 8.9 years
11.24 %
12h
63.5 mm
1:40am 25/02/2018
1:40pm 25/02/2018
1 in 6.8 years
14.74 %
18h
68.6 mm
6:40pm 24/02/2018
12:40pm 25/02/2018
1 in 5.5 years
18.26 %
24h
75.8 mm
6:20am 25/02/2018
6:20am 26/02/2018
1 in 5.7 years
17.66 %
30h
77.7 mm
1:40am 25/02/2018
7:40am 26/02/2018
1 in 4.7 years
21.3 %
36h
82.8 mm
6:00pm 24/02/2018
6:00am 26/02/2018
1 in 4.9 years
20.37 %
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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