Analysis by Metcheck HQ for T+06 Timestep (6Z run on Sunday 20 September 2026 ) Good morning everyone! Welcome to Sunday morning's commentary starting with high pressure building in across the country today to settle things down... | Latest Model Run at T+06 | Previous Model Run at T+06 | ![]() | ![]() |
Analysis by Metcheck HQ for T+30 Timestep (6Z run on Sunday 20 September 2026 ) Monday is looking fine and dry for most places thanks to high pressure over the southwest but some early rain and drizzle in the northeast thanks to a warm front. | Latest Model Run at T+30 | Previous Model Run at T+30 | ![]() | ![]() |
Analysis by Metcheck HQ for T+54 Timestep (6Z run on Sunday 20 September 2026 ) High pressure still extends across much of the country on Tuesday but a frontal system brings cloud and rain into the northwest. | Latest Model Run at T+54 | Previous Model Run at T+54 | ![]() | ![]() |
Analysis by Metcheck HQ for T+78 Timestep (6Z run on Sunday 20 September 2026 ) Into Wednesday and the Autumn Equinox. The GFS still with this shallow low close to the northeast bringing rain or showers here but high pressure building back in from the west. | Latest Model Run at T+78 | Previous Model Run at T+78 | ![]() | ![]() |
Analysis by Metcheck HQ for T+102 Timestep (6Z run on Sunday 20 September 2026 ) Thursday sees high pressure drifting across Britain and Ireland with the next band of rain approaching the northwest. | Latest Model Run at T+102 | Previous Model Run at T+102 | ![]() | ![]() |
Analysis by Metcheck HQ for T+126 Timestep (6Z run on Sunday 20 September 2026 ) By Friday that rain continues to edge into much of the north and west but the south and east remains fine and warm under a ridge of high pressure | Latest Model Run at T+126 | Previous Model Run at T+126 | ![]() | ![]() |
Analysis by Metcheck HQ for T+150 Timestep (6Z run on Sunday 20 September 2026 ) Finally, T+150 and the high pressure ridge fading slightly quicker on this run but still plenty of dry weather around as we head into next weekend. That's the commentary, charts continue out to T+384 and enjoy the rest of your weekend! | Latest Model Run at T+150 | Previous Model Run at T+150 | ![]() | ![]() |
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