Dark mode
Light mode-35.26161, 149.10875
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
8:00am 25/02/2018
8:10am 25/02/2018
1 in 1.6 years
63.99 %
20m
15.9 mm
8:00am 25/02/2018
8:20am 25/02/2018
1 in 3.2 years
31.4 %
30m
23.2 mm
8:00am 25/02/2018
8:30am 25/02/2018
1 in 6.4 years
15.61 %
60m
41.1 mm
7:50am 25/02/2018
8:50am 25/02/2018
1 in 28.6 years
3.5 %
90m
50.8 mm
7:30am 25/02/2018
9:00am 25/02/2018
1 in 44.8 years
2.23 %
120m
56.6 mm
7:30am 25/02/2018
9:30am 25/02/2018
1 in 49.6 years
2.02 %
3h
59.9 mm
7:00am 25/02/2018
10:00am 25/02/2018
1 in 35.4 years
2.83 %
4h
68.8 mm
7:10am 25/02/2018
11:40am 25/02/2018
1 in 37.3 years
2.68 %
6h
70.7 mm
6:40am 25/02/2018
12:40pm 25/02/2018
1 in 27.5 years
3.63 %
9h
71.6 mm
2:50am 25/02/2018
11:50am 25/02/2018
1 in 16.2 years
6.19 %
12h
73.6 mm
1:40am 25/02/2018
1:40pm 25/02/2018
1 in 12.1 years
8.25 %
18h
79.5 mm
6:40pm 24/02/2018
12:40pm 25/02/2018
1 in 9.6 years
10.4 %
24h
85.9 mm
6:30am 25/02/2018
6:30am 26/02/2018
1 in 9.1 years
10.98 %
30h
88.6 mm
1:40am 25/02/2018
7:40am 26/02/2018
1 in 7.9 years
12.74 %
36h
94.6 mm
6:00pm 24/02/2018
6:00am 26/02/2018
1 in 8.2 years
12.15 %
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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