Dark mode
Light mode-35.20385, 149.17247
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
9.6 mm
8:30am 25/02/2018
8:40am 25/02/2018
1 in 2.1 years
48.05 %
20m
14.1 mm
8:30am 25/02/2018
8:50am 25/02/2018
1 in 2.3 years
43.47 %
30m
18.0 mm
8:20am 25/02/2018
8:50am 25/02/2018
1 in 2.9 years
34.78 %
60m
28.6 mm
7:50am 25/02/2018
8:50am 25/02/2018
1 in 6.3 years
15.76 %
90m
35.1 mm
7:40am 25/02/2018
9:10am 25/02/2018
1 in 8.9 years
11.28 %
120m
40.6 mm
8:00am 25/02/2018
10:00am 25/02/2018
1 in 11.7 years
8.57 %
3h
52.4 mm
7:30am 25/02/2018
10:30am 25/02/2018
1 in 22.3 years
4.48 %
4h
59.8 mm
7:40am 25/02/2018
12:10pm 25/02/2018
1 in 23.4 years
4.27 %
6h
64.8 mm
6:10am 25/02/2018
12:10pm 25/02/2018
1 in 22.4 years
4.47 %
9h
68.1 mm
3:00am 25/02/2018
12:00pm 25/02/2018
1 in 15.6 years
6.41 %
12h
70.2 mm
12:10am 25/02/2018
12:10pm 25/02/2018
1 in 11.9 years
8.44 %
18h
74.5 mm
7:00pm 24/02/2018
1:00pm 25/02/2018
1 in 8.8 years
11.3 %
24h
78.1 mm
6:20am 25/02/2018
6:20am 26/02/2018
1 in 7.5 years
13.41 %
30h
83.5 mm
12:10am 25/02/2018
6:10am 26/02/2018
1 in 7.4 years
13.56 %
36h
87.3 mm
7:00pm 24/02/2018
7:00am 26/02/2018
1 in 7.1 years
14.08 %
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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