Dark mode
Light mode-35.27045, 149.10289
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
8.7 mm
8:00am 25/02/2018
8:10am 25/02/2018
1 in 1.7 years
58.02 %
20m
15.6 mm
8:00am 25/02/2018
8:20am 25/02/2018
1 in 3.0 years
33.17 %
30m
22.3 mm
8:00am 25/02/2018
8:30am 25/02/2018
1 in 5.5 years
18.13 %
60m
36.1 mm
7:50am 25/02/2018
8:50am 25/02/2018
1 in 15.1 years
6.63 %
90m
43.3 mm
7:40am 25/02/2018
9:10am 25/02/2018
1 in 19.8 years
5.05 %
120m
48.6 mm
7:30am 25/02/2018
9:30am 25/02/2018
1 in 22.9 years
4.36 %
3h
51.2 mm
7:00am 25/02/2018
10:00am 25/02/2018
1 in 16.7 years
5.98 %
4h
60.9 mm
7:10am 25/02/2018
11:40am 25/02/2018
1 in 21.0 years
4.77 %
6h
62.7 mm
6:40am 25/02/2018
12:40pm 25/02/2018
1 in 16.0 years
6.25 %
9h
63.4 mm
3:40am 25/02/2018
12:40pm 25/02/2018
1 in 9.6 years
10.43 %
12h
65.2 mm
1:40am 25/02/2018
1:40pm 25/02/2018
1 in 7.4 years
13.43 %
18h
70.5 mm
6:40pm 24/02/2018
12:40pm 25/02/2018
1 in 6.0 years
16.58 %
24h
76.6 mm
6:00am 25/02/2018
6:00am 26/02/2018
1 in 5.8 years
17.14 %
30h
78.8 mm
1:40am 25/02/2018
7:40am 26/02/2018
1 in 4.9 years
20.5 %
36h
84.1 mm
6:00pm 24/02/2018
6:00am 26/02/2018
1 in 5.1 years
19.51 %
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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