The Environment Agency has issued a flood alert for the Isle of Wight coast, as this morning’s (Thursday’s) tide is expected to be higher than normal.
Due to unsettled weather with light Westerly Force 3 winds, tide table values are expected to increase by 0.29 m. The total forecast tide is 4.61 metres Chart Datum (2.02 mAOD) at Cowes.
Water levels will be very high in Cowes, affecting Medina Road (floating bridge) and Sea Street (Newport). The tide will come near to the top of front door steps at Medina Road with the Environment Agency recommending that flood protection is installed, if you have it, 1 hour before high tide.
In East Cowes, seawater forced up through drains will cause minor impacts to the road at Albany Road, Well Road, York Avenue and Castle Street.
The ferry terminal car park at Yarmouth will flood.
For 1 hour either side of high water, flooding of seafront roads, esplanades and car parks is expected. Tide levels will continue to be a little elevated over the next 4 days, causing some minor impacts at each high water until Monday.
Er, no.
Tide table values specifically exclude meteorological effects, so they won’t be affected by “unsettled weather” or “light winds” not that they would affect tide height anyway and besides we are not experiencing particularly unsettled weather. We have slightly below standard air pressure (1009 versus 1013mB) which might raise tidal heigth by a very small amount (about an inch and a half) above tabulated values – hardly noticeable.
And where do you get the correction to Chart Datum – you show 2.58 whereas it’s tabulated at 2.73 around here.
Otherwise, spot on, IE!
Nothing to do with today’s “supermoon” (closest approach to earth) at mid-day?
‘tide table values are expected to increase by 0.29 m’
So, in English, that means the water level will be just under a foot higher than normal?
I suppose it’s a symptom of today’s world that we get flood warnings, written in large bold capitals, because the tide is ‘a little elevated over the next 4 days, causing some minor impact’.