The next tidal bore on the River Dee in Flintshire is dependant on the tide cycle and specific conditions. It is advised to consult a tidal bore prediction chart or local authorities for the most accurate information.
A tidal bore is formed when the incoming tide funnels into a narrow, shallow river mouth or estuary, causing the water to surge in a fast-moving wave-like formation. The combination of the tidal forces and the shape of the coastline creates a hydraulic jump effect that results in the formation of the tidal bore.
A Tidal Bore is a wave that forms when a rising tide enters a shallow, narrow river from a wide area of the sea.
The river Severn is famous for being the longest River in Britain It also has a tidal bore, that rises suddenly as a wall of water, that races up river. Many people visit the Severn at the time of the tidal bore to race upstream for miles on surf boards. The Severn tidal bore is the second largest in the World, the largest being (I believe in Canada?)
The type of coast that a tidal bore would most likely occur is a coast with narrow bays and inlets. Tidal bores also occur on a coast that has river channels.
I believe the tidal fall is 12 feet
tidal bore
A tidal bore is most likely to occur on a coastal area with a funnel-shaped bay or estuary, such as in rivers or estuaries that have a narrow inlet opening onto a broad bay. The narrowing of the waterway causes the incoming tide to create a wave that can travel upstream, forming a tidal bore.
A tidal bore results when the conformation of a bay funnels the incoming tide into a fairly narrow river channel. The effect is a result of the flood tide's duration's being shortened by the land shape so that it acts very suddenly.
11 - 02 -2009 Wednesday 11.30am (ish) high tide is 12.25
tidal wave
The world's shortest tide, known as a "tidal bore," occurs in the Petitcodiac River in New Brunswick, Canada. The tidal bore here can travel 29 km (18 miles) in about 80 minutes.