Apologies for the delay in posting the next lesson - with a bit of luck I should be posting it tomorrow. With regards to current model output, the latter stages of next week are still uncertain. While some of the numerical deterministic outputs show the southern half of the UK in a mild and relatively settled south-westerly airmass with most of any wet amnd breezy weather further north, some of the models are showing a southward movement of the jet, thereby bringing a cooler westerly or west-northwesterly to all parts of the UK by this time next week, allied to which, it wants to spin-up some short/medium-wave features next to the main upper low in the base of the longwave trough, which, if they verified, would be likely to bring some heavy, squally rain to the southern half of the mainland, and cooler conditions with frequent rain to the north, possibly wintry over higher ground.