Is there a late spring heatwave on the way?

The UK is forecast to experience its warmest weather of the year later this week, with temperatures reaching up to 28C in south-eastern England by Thursday and Friday, following an unusually cold period the previous week. A change in wind direction from northerly to southerly is responsible for the warming trend, and it's possible that some areas could meet the Met Office's heatwave definition (at least three consecutive days exceeding county-specific temperature thresholds) during the late May bank holiday weekend, though conditions remain uncertain.