The Environment Agency has issued a flood alert today for a stretch of north west Cumbria, from Longtown to Silloth - with a possible flood warning coming later.
Remaining in place all day and overnight, the alert has come "as a result of high spring tides".
A spokesman for the Environment Agency said: "Sunday lunchtime's high tide is not expected to reach the alert level but the high tide overnight, Sunday into Monday, is forecast to be above the alert threshold and may possibly reach the flood warning level.
"Tides will be at their highest between midnight on Sunday and 2am on Monday.
"Sea levels could remain high two to four hours either side of the high tide.
"Low lying land, roads and coastal paths in the Port Carlisle area are likely to be affected.
"We are closely monitoring the situation.
"Our incident response staff are closing tidal flood gates and checking defences.
"The high tide at lunchtime on Monday is currently forecast to touch flood alert threshold but not exceed it."
The alert will remain in place until the situation changes.
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