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Light mode 7:45am 15/05/2026 to 7:45am 17/05/2026
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Observations for this analysis :
Maximum observed rainfall by duration, estimated return period and AEP
Duration
Rainfall
Start
End
Years
AEP
15m
15.2 mm
1:45am 17/05/2026
2:00am 17/05/2026
1 in 1.2 years
80.61 %
30m
29.0 mm
1:30am 17/05/2026
2:00am 17/05/2026
1 in 2.2 years
46.15 %
45m
34.6 mm
1:15am 17/05/2026
2:00am 17/05/2026
1 in 2.2 years
44.51 %
60m
36.0 mm
1:00am 17/05/2026
2:00am 17/05/2026
1 in 1.9 years
51.8 %
90m
36.6 mm
1:00am 17/05/2026
2:30am 17/05/2026
1 in 1.5 years
65.52 %
120m
39.0 mm
12:15am 17/05/2026
2:15am 17/05/2026
1 in 1.4 years
69.45 %
3h
42.0 mm
12:15am 17/05/2026
3:15am 17/05/2026
1 in 1.3 years
77.13 %
4h
45.2 mm
12:00am 17/05/2026
4:30am 17/05/2026
1 in 1.2 years
86.47 %
6h
49.6 mm
9:30pm 16/05/2026
3:30am 17/05/2026
1 in 1.1 years
87.77 %
9h
54.8 mm
9:00pm 16/05/2026
6:00am 17/05/2026
1 in 1.1 years
91.19 %
12h
62.8 mm
2:45pm 16/05/2026
2:45am 17/05/2026
1 in 1.1 years
90.52 %
18h
71.6 mm
12:30pm 16/05/2026
6:30am 17/05/2026
1 in 1.1 years
92.27 %
24h
73.0 mm
7:30am 16/05/2026
7:30am 17/05/2026
1 in 1.0 years
95.71 %
30h
73.4 mm
1:45am 16/05/2026
7:45am 17/05/2026
1 in 1.0 years
97.25 %
36h
73.6 mm
7:45pm 15/05/2026
7:45am 17/05/2026
1 in 1.0 years
98.25 %
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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