November 2020 – sunshine
Another dull month in parts of the north and west much sunnier in the east and south.
November 2020 Rainfall – not as wet as I had imagined
A little bit experimental but here is my take on the rainfall anomalies for November 2020 across the UK.The 18% at Shoeburyness looks remarkably and possibly too low although I did receive 100% of their 06-06 …
November 2020 Rainfall – not as wet as I had imagined Read More »
If we don’t name it the French will
The gale force winds that looked likely to clip the southeast of England on Friday in yesterday’s model runs have now been forecast to occur much further south across various parts of France depending on which …
Who do you believe?
A big range of snow depths from four of the leading NWP models for by the time we get to Saturday – but which one should we believe?
An eventful week ahead weatherwise – storm Bella perhaps by Friday?
It looks likely to be quite an eventful week ahead weatherwise across IONA. A mix of cyclonic cold air with sub 528 dm thicknesses for a while brought about by an extending trough. It could be …
An eventful week ahead weatherwise – storm Bella perhaps by Friday? Read More »
Difficult to fathom
It’s difficult to fathom the logic in how the Met Office treat dense fog in their warnings system. All that fuss earlier this week about fog and then when its just as widespread this morning they …
Heatstroke, sunburn AND windburn all in one go !!
The spring is warming up down under with temperatures of 40°C and 10 minute mean wind speeds of 30 knots or more at Sydney airport. Nice refreshing sea breeze at 07 UTC this evening.
Lerwick Observatory
When I went looking for the ‘observatory’ in Lerwick I imagined it to be a old Victorian stone building similar to the observatory down at Eskdalemuir. That might have been the case once upon a time …
Doubts about the ECMWF 42 day forecast
Since the ECMWF started freed up more of their NWP climate data I’ve been making good use of their long-range 42 day forecast charts for temperature anomalies. I now have my doubts about just how just …
Coldest night of the autumn
There is quite a contrast across the chart as far as overnight minimum temperatures are concerned.I think I am right in saying that the -6.1°C recorded at Aboyne made it the coldest night of the Autumn.
28 November 2020 – 12 UTC
A lovely autumn day across our part of Scotland after some early morning fog in the strath.Drier air is spreading into the southeast from France the clear skies allowing temperatures to climb to avery mild 14°C …
Don’t you just love windy
During this week a significant upper trough is going to become established at 15° west. So say the models and who am I to disagree with them. No wonder the start of December is going to …
Fiery low may become subtropical
There’s a 30% chance according to the NHC that the fiery low that I mentioned yesterday may take on subtropical characteristics, either way it promises a windy spell for the Azores and later Madeira and the …
You can see just how important continuity is to the UKMO
The crossed lines across the warm front advancing northwestward across Ireland on these two forecast charts from the Met Office indicate that its undergoing frontolysis and decaying. Why it’s overhead Belfast at 00 UTC on Sunday …
You can see just how important continuity is to the UKMO Read More »
50 hPa drop in pressure next Thursday?
The latest ECMWF forecast predicts interesting developments during Thursday of next week with pressure set to tumble by as much as 50 hPa if this comes off. Because this forecast is way beyond T+96 the usual …
Fiery mid-Atlantic low takes a nosedive
For whatever reason this fiery low in mid-Atlantic low which appears to develop from absolutely nothing today (Friday), decides to deepen and take a nosedive south over the weekend, that’s according to the latest ECMWF hires …
Fog in Exeter catches Met Office out
As suspected yesterday afternoon the area of fog outlined in the Met Office’s yellow warning extended too far north, and even though they issued the warning late (1332 UTC) they didn’t factor in the SC sheet …
Fog or no fog?
It will be interesting to see just how much the SC sheet that’s feeding in from the northwest will interfere with the formation of the widespread fog that’s anticipated for later this evening and overnight. NWP …
Grim news as the Arctic defrost accelerates into the autumn
Temperature anomalies so far this November across the Arctic Ocean and the north of Russia are as high as 17°C above the LTA in the highest areas at the moment. As you can see from the …
Grim news as the Arctic defrost accelerates into the autumn Read More »
Now that’s what I call a cold front
A deepening extratropical low ultimately heading our way has brought a plunge of cold air across eastern America overnight. It certainly wasn’t a good night to be out doing some wild camping on the White mountains …
Rain turns to snow on back edge of cold front
It’s a shame that the SIESAWS is not online at the moment on Aonach Mor because I reckon the heavy rain that’s been falling for the last 36 hours or more has turned to snow above …
Not quite accurate I’m afraid Matt
Not quite accurate I’m afraid Matt.There are plenty of places in the north and west of the UK which are colder than 12°C this afternoon.I suppose logically his statement would include all temperatures if you take …
Aultbea AWS or should that be Mellon Charles?
I have finally found the AWS at Aultbea (WMO #03034) the problem I had was that it’s not actually located in the village of Aultbea but 3.5 km to the northwest at a place with the …