Llyn and Eryri
This Management Catchment is part of the Western Wales river basin and is managed by Natural Resources Wales
Management Catchment Data
Catchment Rainfall Summary
Afon Colwyn River Station
3h Total
8.80 mm
08:00-11:00
6h Total
10.20 mm
05:00-11:00
12h Total
10.20 mm
23:00 (Sep 11)-11:00
24h Total
10.20 mm
11:00 (Sep 11)-11:00
Last 24h: Max 15m intensity at 08:45 (Sep 12) 3.00 mm
Bethesda Quarry Raingauge
3h Total
6.40 mm
08:00-11:00
6h Total
6.80 mm
05:00-11:00
12h Total
6.80 mm
23:00 (Sep 11)-11:00
24h Total
6.80 mm
11:00 (Sep 11)-11:00
Last 24h: Max 15m intensity at 08:15 (Sep 12) 1.80 mm
Cwm Dyli Raingauge
3h Total
13.60 mm
08:00-11:00
6h Total
16.20 mm
05:00-11:00
12h Total
16.20 mm
23:00 (Sep 11)-11:00
24h Total
16.40 mm
11:00 (Sep 11)-11:00
Last 24h: Max 15m intensity at 08:30 (Sep 12) 2.60 mm
Porthmadog Raingauge
3h Total
7.00 mm
08:00-11:00
6h Total
9.40 mm
05:00-11:00
12h Total
9.40 mm
23:00 (Sep 11)-11:00
24h Total
9.40 mm
11:00 (Sep 11)-11:00
Last 24h: Max 15m intensity at 07:30 (Sep 12) 2.00 mm
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