Forecasts

Local

The Frome
When the Frome EA gauge is at 0.1m the water level is at the bottom of the jetty and when the gauge is at 0.3m it is at the top.  Live webcam here - now moved to Spring Gardens.
When the Tellisford EA gauge is at 1.6m the water is just flowing over the weir at Langham Farm. When the gauge is at 1.1m the level is around 0.1m below the crest and there is still a significant flow under the bridge.

Exmoor

The Exe
The Exe is at a good level for a group of improvers when the EA gauge at Thorverton (and gauging station webcam) reads between 0.6m and 0.8m. 0.4m will give a low run.

The Barle
The Barle is at a good level when the EA gauge at Brushford (Dulverton) is between 0.6m and 0.8m.  0.5m is low.  Live webcam at Dulverton.

The East Lyn
Brendon EA gauge.  Watersmeet Web Cam. Green appears to be the minimum level to run the river. The gorge may still be possible with the level lower. For an idea of what to expect at each number on the gauge see here. Note the large picture does not currently update, right click a small picture and View Image.

Dartmoor

The Dart
A good level on the Dart for a group of improvers is when the water is level with the slab or ledge at Newbridge and this equates to around 0.7m or 0.8m on the EA gauge at Austins Bridge Buckfastleigh. 0.4m is a low run.  Live webcam at Buckfastleigh.
There is a Dartcam at River Dart Country Park.  The line shows the level just over the ledge, although currently (Oct 16) no gauge.
The West Dart EA gauge gives an indication of the level likely on the Upper Dart. The West Dart gauge is 30-45 mins upriver of Dartmeet and 4-6 hrs after the rain gauge reading at the Dartcom Weather Station (next to Powdermills near Princetown).  Is the Dart running? is linked to the West Dart gauge and gives a prediction of both water level and rainfall.

The Teign Clifford Bridge EA gauge. 0.6m is a low run.  Live webcam at Fingle Bridge.
The Middle Tavy  Mary Tavy EA gauge.
The Lower Tavy  Denham EA gauge. 0.4m is a low run. Live webcam at Tavistock.
The Erme Harford Bridge EA gauge.

See also FacebookDartmoor River Levels and EA Gauges

South Wales

The Tawe Craig y Nos NRW gauge (below Glyntawe).
The Usk
Usk Cam Brecon  The Usk is good to go between 1½ and 2.  From Sennybridge 1¼ is low (0.6m at Trallong gauge) and from Talybont 1 is low.  Trallong NRW gauge (Sennybridge)Llandetty NRW gauge (Talybont).
The Ogmore  Ogmore NRW gauge at Bridgend.

Other

Rainchasers river levels

Canolfan Tryweryn Water Release Information

Cardiff International White Water Pump Time

Surf

North Devon
Magic Seaweed North Devon 
Eyeball Surfcheck
The surf can be affected by the swell, by the wind and by the state of the tide. Saunton is protected from Northerly winds. Putsborough is protected from Southerly winds and from the full power of most swells. Most beaches work best on a rising tide at around three quarters high. Croyde surprisingly works best at around low tide.

North Cornwall
Magic Seaweed Polzeath
Constantine Bay and Harlyn / Constantine Bay Surf Store