Dark mode
Light mode-35.21357, 149.17902
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
8.2 mm
8:30am 25/02/2018
8:40am 25/02/2018
1 in 1.6 years
64.17 %
20m
13.3 mm
8:30am 25/02/2018
8:50am 25/02/2018
1 in 2.0 years
49.17 %
30m
17.6 mm
8:20am 25/02/2018
8:50am 25/02/2018
1 in 2.7 years
37.21 %
60m
30.5 mm
7:50am 25/02/2018
8:50am 25/02/2018
1 in 8.4 years
11.86 %
90m
38.5 mm
7:40am 25/02/2018
9:10am 25/02/2018
1 in 14.0 years
7.17 %
120m
44.5 mm
7:40am 25/02/2018
9:40am 25/02/2018
1 in 18.6 years
5.39 %
3h
58.4 mm
7:10am 25/02/2018
10:10am 25/02/2018
1 in 40.2 years
2.49 %
4h
65.9 mm
7:10am 25/02/2018
11:40am 25/02/2018
1 in 37.6 years
2.66 %
6h
69.5 mm
7:00am 25/02/2018
1:00pm 25/02/2018
1 in 30.4 years
3.29 %
9h
72.8 mm
3:00am 25/02/2018
12:00pm 25/02/2018
1 in 19.9 years
5.03 %
12h
75.4 mm
12:10am 25/02/2018
12:10pm 25/02/2018
1 in 15.2 years
6.58 %
18h
79.6 mm
7:00pm 24/02/2018
1:00pm 25/02/2018
1 in 10.7 years
9.38 %
24h
83.2 mm
5:30am 25/02/2018
5:30am 26/02/2018
1 in 8.7 years
11.44 %
30h
89.1 mm
11:30pm 24/02/2018
5:30am 26/02/2018
1 in 8.6 years
11.57 %
36h
92.7 mm
5:30pm 24/02/2018
5:30am 26/02/2018
1 in 8.1 years
12.31 %
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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