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Calling all conditions forecasters (Read 8314 times)

Johnny Brown

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#25 Re: Calling all conditions forecasters
December 18, 2021, 07:07:45 pm
Roaches was beautiful today, not that I went. Best approach in this weather is to check satellite and webcam images in the morning. Clear areas are easily spotted and you can usually judge whether they'll spread.

Will Hunt

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#26 Re: Calling all conditions forecasters
December 18, 2021, 07:42:38 pm
Wolfrey was good today. Obviously hot on the rock but we had a nice day. Inversion was above the level of the reservoir most of the day, so about 400m. Met Office mountain forecast for Yorkshire says inversion between 300-450m tomorrow.

Duncan campbell

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#27 Re: Calling all conditions forecasters
December 18, 2021, 08:02:50 pm
If you can hack the drive, North Wales is going to be nice (for a change).

Can confirm North Wales was beaut. Tops off at the Mallory boulder!!

Where did you get to Andy?

andy moles

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#28 Re: Calling all conditions forecasters
December 18, 2021, 09:50:51 pm
Where did you get to Andy?


Guiding some extreme highballs on the east face of Tryfan  :thumbsup:

I bet Mallory was minty.

Bonjoy

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#29 Re: Calling all conditions forecasters
December 18, 2021, 11:40:46 pm
Roaches was beautiful today, not that I went. Best approach in this weather is to check satellite and webcam images in the morning. Clear areas are easily spotted and you can usually judge whether they'll spread.
Thought about going there. Saw the morning forecast was sunny, but the webcams (flash bar and winking man) showed heavy clag. Must have burnt off soon after.

Johnny Brown

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#30 Re: Calling all conditions forecasters
December 19, 2021, 09:05:34 am
It's not unusual for the clag to end around Ramshaw, so it can often be shit while Roaches is clear. But the satellite showed a huge clear swathe that way, pics from Shutlingslow didn't show any mist nearby.

mark20

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#31 Re: Calling all conditions forecasters
December 19, 2021, 09:22:35 am
Just parked at stanage. Rock looks damp but it’s a Lovely clear day, sunny and only a bit of mist down in the hope valley. No wind.

teestub

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#32 Re: Calling all conditions forecasters
December 19, 2021, 09:31:38 am
Sounds like a classic ‘Southerners on Zippy’s Traverse’ day 😬

mark20

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#33 Re: Calling all conditions forecasters
December 19, 2021, 09:43:46 am
Looks a lot more misty to the south. Slight NE beeeze on the tops, I recon Burbage west will be decent cons.

Fiend

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#34 Re: Calling all conditions forecasters
December 19, 2021, 10:19:31 am
Sounds like a classic ‘Southerners on Zippy’s Traverse’ day 😬
Aren't ALL days like that?!

Will Hunt

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#35 Re: Calling all conditions forecasters
December 19, 2021, 10:42:49 am
Where are you getting live satellite images, JB?

Johnny Brown

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#36 Re: Calling all conditions forecasters
December 19, 2021, 10:57:43 am
https://en.sat24.com/en

Modis is obvs amazing but only one a day and by the time the data comes through this time of year its usually a bit late.

SamT

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#37 Re: Calling all conditions forecasters
December 19, 2021, 11:29:47 am
Its mint at Burb Norht/West by the way.

Johnny Brown

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#38 Re: Calling all conditions forecasters
December 19, 2021, 05:31:59 pm
Interesting drive over the snake and back today. Mist top level about 1500ft lower on the west side, but later on only clear on the lee slopes where temps were about 9deg warmer than in the mist. Presumably a combo of air masses, sunshine and fohn effect. Clearest view of Snowdonia I can recall enhanced by some subtle vertical refraction, steadily broke up due to fata morgana effects later.

teestub

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#39 Re: Calling all conditions forecasters
December 19, 2021, 05:43:37 pm
That’s a lot of sweet weather licks in one post 😎

Bradders

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#40 Re: Calling all conditions forecasters
December 19, 2021, 08:43:54 pm
I didn't understand half of it!

Johnny Brown

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#41 Re: Calling all conditions forecasters
December 19, 2021, 09:38:06 pm
Shaz has posted a few pics from the Roaches. Really unusual viz.

andy moles

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#42 Re: Calling all conditions forecasters
December 20, 2021, 07:24:54 am
Yeah incredible vis above the low cloud blanket from Tryfan yesterday, I could see Wicklow and all the high ground from the Lakes to the Peak. Wouldn't be surprised if Galloway was visible too, but Carneddau in the way.

Also unbelievably warm in the sun at 900m, real t-shirt weather.

teestub

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#43 Re: Calling all conditions forecasters
December 20, 2021, 09:29:13 am
Sounds amazing! Was cool reading about it being similar in Scotland, below freezing in the Glens and >10 degrees on the tops.

Bradders

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#44 Re: Calling all conditions forecasters
December 20, 2021, 10:39:57 am
Anyone able to explain the dramatic temp differences between high and low ground?

RobK

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#45 Re: Calling all conditions forecasters
December 20, 2021, 10:55:32 am
Anyone able to explain the dramatic temp differences between high and low ground?

What we've had this weekend is a subsidence inversion. Often happens in winter with high pressure regions. Essentially the high pressure causes the air to sink and it warms as it does so. This causes a layer of warm air that can trap a layer of cold air beneath it, which is subsequently quite stable.

SA Chris

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#46 Re: Calling all conditions forecasters
December 20, 2021, 12:52:27 pm
Sounds amazing! Was cool reading about it being similar in Scotland, below freezing in the Glens and >10 degrees on the tops.

Was like that this weekend in several places in Scotland. Had it in Clova before, frozen  in the glen, but sweating in a t shirt after 100m height gain.

jamesturnbull97

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#47 Re: Calling all conditions forecasters
December 23, 2021, 04:07:01 pm
Anyone been out in/around the peak today?
Forecasts just seem to be showing cloud but that seems too mean damp clag up in Yorkshire. Any different further south? or is the hope of finding dry rock on Grit/Lime/Maglime a complete lost cause for tomorrow.

Johnny Brown

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#48 Re: Calling all conditions forecasters
December 23, 2021, 04:25:54 pm
Didn't seem worth leaving Sheffield. Low cloud with drizzle.

slab_happy

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#49 Re: Calling all conditions forecasters
December 23, 2021, 04:33:31 pm
Reporting from near the Fox House: whiteout fog and drizzle.

 

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