Dark mode
Light mode-35.27976, 149.11944
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
8.4 mm
8:20am 25/02/2018
8:30am 25/02/2018
1 in 1.6 years
61.48 %
20m
16.3 mm
8:10am 25/02/2018
8:30am 25/02/2018
1 in 3.4 years
29.03 %
30m
22.5 mm
8:00am 25/02/2018
8:30am 25/02/2018
1 in 5.8 years
17.25 %
60m
36.0 mm
8:00am 25/02/2018
9:00am 25/02/2018
1 in 15.0 years
6.68 %
90m
44.5 mm
8:00am 25/02/2018
9:30am 25/02/2018
1 in 23.0 years
4.34 %
120m
48.8 mm
7:40am 25/02/2018
9:40am 25/02/2018
1 in 24.0 years
4.17 %
3h
52.7 mm
7:50am 25/02/2018
10:50am 25/02/2018
1 in 19.5 years
5.13 %
4h
62.0 mm
7:40am 25/02/2018
12:10pm 25/02/2018
1 in 23.5 years
4.26 %
6h
63.4 mm
6:40am 25/02/2018
12:40pm 25/02/2018
1 in 17.2 years
5.82 %
9h
64.4 mm
3:40am 25/02/2018
12:40pm 25/02/2018
1 in 10.3 years
9.66 %
12h
66.1 mm
12:40am 25/02/2018
12:40pm 25/02/2018
1 in 7.9 years
12.62 %
18h
71.1 mm
6:40pm 24/02/2018
12:40pm 25/02/2018
1 in 6.3 years
15.87 %
24h
78.7 mm
6:20am 25/02/2018
6:20am 26/02/2018
1 in 6.6 years
15.26 %
30h
80.6 mm
1:40am 25/02/2018
7:40am 26/02/2018
1 in 5.5 years
18.04 %
36h
85.7 mm
6:00pm 24/02/2018
6:00am 26/02/2018
1 in 5.7 years
17.48 %
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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