Waterspout

Just to the South/West of me from Swinton some poor souls around Eccles have been in those purple/white echoes for about 30 minutes now. Some friends said they have a lot of flooding there, what a difference a mile makes.

Just my explanation as I work with GM charts. Temperature is in kelvin so the formula is C = K - 273.15 when producing a chart. If a frame is faulty or missing, which does happen, then the K grid can get filled with -1s or 0’s , which if you don’t account for will give you lots of -273c conversions! I usually deal with this by carrying across the last good frame, which at least prevents a ridiculous looking graph!

Moderate Snow here in Pendlebury!

Just a comment on UKMET. Link here: Numerical weather prediction models WWW.METOFFICE.GOV.UK The Unified Model is run operationally in a number of configurations for weather forecasting at the Met Office. 6 Days they describe as Short to Medium range. So it goes 1 perhaps. 2 days into what I would understand as medium, hence it’s understandable why some posters don’t believe it’s geared up to be accurate beyond T96 to 120. It is just the way it was designed I guess! Hence why lots of countries invested in the ECMWF, which is a true > Medium range model.