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Light mode-35.19781, 149.18560
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
8:30am 25/02/2018
8:40am 25/02/2018
1 in 1.4 years
69.14 %
20m
13.3 mm
8:30am 25/02/2018
8:50am 25/02/2018
1 in 2.1 years
48.24 %
30m
16.1 mm
8:30am 25/02/2018
9:00am 25/02/2018
1 in 2.2 years
45.16 %
60m
23.8 mm
7:50am 25/02/2018
8:50am 25/02/2018
1 in 3.4 years
29.11 %
90m
32.7 mm
7:40am 25/02/2018
9:10am 25/02/2018
1 in 7.1 years
14.07 %
120m
38.9 mm
8:00am 25/02/2018
10:00am 25/02/2018
1 in 10.3 years
9.76 %
3h
50.3 mm
7:30am 25/02/2018
10:30am 25/02/2018
1 in 19.4 years
5.14 %
4h
58.8 mm
7:40am 25/02/2018
12:10pm 25/02/2018
1 in 22.2 years
4.51 %
6h
65.0 mm
6:10am 25/02/2018
12:10pm 25/02/2018
1 in 22.7 years
4.4 %
9h
68.5 mm
3:00am 25/02/2018
12:00pm 25/02/2018
1 in 15.3 years
6.52 %
12h
71.6 mm
12:10am 25/02/2018
12:10pm 25/02/2018
1 in 12.1 years
8.27 %
18h
76.3 mm
7:00pm 24/02/2018
1:00pm 25/02/2018
1 in 8.9 years
11.25 %
24h
77.8 mm
6:00am 25/02/2018
6:00am 26/02/2018
1 in 6.6 years
15.09 %
30h
84.3 mm
12:10am 25/02/2018
6:10am 26/02/2018
1 in 6.8 years
14.62 %
36h
88.6 mm
7:00pm 24/02/2018
7:00am 26/02/2018
1 in 6.7 years
15.0 %
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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