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UK Seas Brace for Extreme Marine Heatwave
3 Jul
Summary
- UK waters face extreme marine heatwave conditions, 4-5 degrees above average.
- Record sea temperatures impacting weather, climate, and marine life.
- Marine heatwave conditions expected to peak next week.

Marine heatwave conditions in UK waters, particularly the English Channel and North Sea, are intensifying and are forecast to peak at 4-5 degrees Celsius above average in the coming days. These conditions are currently categorized as strong to severe, with sea surface temperatures typically expected in August and averaging 2 degrees Celsius warmer than usual.
These record-breaking sea temperatures are a result of the recent heat dome over Europe, which also led to unprecedented land temperatures. The elevated sea surface temperatures have limited opportunity to cool, increasing the likelihood of the current marine heatwave reaching an 'extreme' classification, a rare event for the region.
The consequences of such prolonged marine heatwaves are far-reaching, impacting global climate patterns, weather systems, and marine ecosystems. Shifts in fish populations and damage to marine species are anticipated as a result of these abnormal ocean temperatures.