Check the local river levels here:
Grinton river level: https://riverlevels.uk/river-swale-grinton-grinton-bridge
Lowenthwaite bridge river level: https://riverlevels.uk/river-swale-hudswell-richmond-lownthwaite-bridge
Catterick river level: https://riverlevels.uk/river-swale-brough-with-st-giles-catterick-bridge
Guidance from experienced R&DAS members concerning river levels:
"One of the things about the gauge heights is that you need to maybe adjust what works for you each year depending on how the river might have changed. But we pretty much live by them using the Flood-warning- information- site to save a long wasted journey. And the height you go for varies according to your height and size too. So for example, my bench mark is around .45m on the Catterick Bridge gauge. At that I know the fishing will be ok at Langton, Catterick, RHF and Lowenthwaite. ). At the other end of the scale anything below .30m or so means the water is going to be a bit thin at Langton Bridge. But a word of caution, none of this is set in tablets of stone, and you'll find a skilful fisherman going to Langton in really thin water and doing fine."
"If the Catterick gauge is below .3 or over .5, stay at home. Also check upstream at Lowenthwaite and Grinton to see if there is a plug of water coming down. Combine this info with NE weather forecast because occasionally when the gauge shows .5 or over at Catterick you may find that the upstream gauges have fallen back, indicating that the plug is passing through and maybe by the time he gets to Catterick, it will have passed or will be falling. It's up and down so quickly as you well know and famous for it. The old Saxon name for the river was Sualuae meaning rapid or deluge and we can still say that we'll "swill" something down."