Dark mode
Light mode-35.22720, 149.14385
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
12.2 mm
8:20am 25/02/2018
8:30am 25/02/2018
1 in 4.0 years
24.86 %
20m
22.6 mm
8:20am 25/02/2018
8:40am 25/02/2018
1 in 11.6 years
8.6 %
30m
30.5 mm
8:20am 25/02/2018
8:50am 25/02/2018
1 in 23.2 years
4.31 %
60m
49.5 mm
7:50am 25/02/2018
8:50am 25/02/2018
1 in 98.7 years
1.01 %
90m
59.3 mm
7:30am 25/02/2018
9:00am 25/02/2018
1 in 126.1 years
0.79 %
120m
67.3 mm
7:10am 25/02/2018
9:10am 25/02/2018
1 in 148.4 years
0.67 %
3h
75.0 mm
7:00am 25/02/2018
10:00am 25/02/2018
1 in 131.8 years
0.76 %
4h
80.2 mm
7:10am 25/02/2018
11:40am 25/02/2018
1 in 95.0 years
1.05 %
6h
83.0 mm
6:50am 25/02/2018
12:50pm 25/02/2018
1 in 68.8 years
1.45 %
9h
84.0 mm
3:30am 25/02/2018
12:30pm 25/02/2018
1 in 37.9 years
2.64 %
12h
85.1 mm
12:50am 25/02/2018
12:50pm 25/02/2018
1 in 26.1 years
3.84 %
18h
88.7 mm
6:50pm 24/02/2018
12:50pm 25/02/2018
1 in 17.4 years
5.74 %
24h
96.9 mm
5:40am 25/02/2018
5:40am 26/02/2018
1 in 17.4 years
5.75 %
30h
99.2 mm
1:20am 25/02/2018
7:20am 26/02/2018
1 in 14.3 years
6.99 %
36h
102.2 mm
5:40pm 24/02/2018
5:40am 26/02/2018
1 in 12.8 years
7.8 %
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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