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richarddx7

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Posts posted by richarddx7

    mushroom clouds vs clouds

    in Spring Weather Discussion

    Posted · Edited by richarddx7

    In a nuclear explosion or volcanic eruption the "cloud" can extend well into the stratosphere because it is a lot warmer than the surrounding air even through the temperature inversion of the tropopause. Condensed water clouds at that level are made of ice crystals and can never penetrate the temperature inversion of the tropopause. Mine was a pretty basic answer that could probably be expanded upon in some way, however.

    July CET

    in Spring Weather Discussion

    Posted

    One things for sure, it's much cooler here this July than last year. Nearly 0.5c colder. The CET cyrrebtky stands at 15.1c, a bit lower than last year, no doubt will rise a bit by the end of the month with the slightly above average temps predicted.

    LRF or attempting them

    in Spring Weather Discussion

    Posted · Edited by richarddx7

    Long range forecast Summer '08 and early autumn '08:

    OK I don't claim to use any scientific methods but let's see anywy

    July 2008

    Generally about average temperatures, wet at times, warm at others while slightly unsettled and showery, this remaining through to the early 4th week, then brief high pressure from the east will develop, giving some settled days with average to slightly above average temperatures

    CET: 16.0c

    August 2008

    Starting slightly settled seeing highest temperatures in the first week. However, becoming quickly unsettled with north westerly winds dominating, showery with longer outbreaks of heavy rain at times and depressions tracking one by one over the UK. Much cooler than normal.

    CET: 14.3c

    Before any one jumps on me let's say nobody really "knows" anything when it comes to Long Range Forecasting. Doing it this way is no less accurate than using scientific methods in my opinion these days, that will soon change of course, but there's my forecast, you can take it at face value and just see what happens, like we all have to do.

    Some of the most meticulously thought out scientifically based forecasts for the long term turn out to be the most dramatically incorrect of all!

    Summer Discussion!

    in Spring Weather Discussion

    Posted

    You are basing the above on not much real evidence, if your post on the Model Output thread is any guide. And NOBODY knows what will happen in 2009.

    We've had some pretty rotten weather in recent days (with some warm sunshine inbetween though!) but that doesn't mean that unsettledness is bound to persist.

    I'm all for realism, and I do respect science-based real forecasts however bad, but the doom and gloom tendancy by some here, to assume that the weather will continue indefinitely as badly as it might be at a given current moment, is annoying. We're only on the official second day of official summer for heavens sake!

    LOL I was not being serious... jeez. My point is NOBODY KNOWS. I was being ironic if you didn't notice.

    25C this week?

    in Spring Weather Discussion

    Posted

    I think 24c might be reached but possibly not 25 before the beginning of next week. Low pressure looks set to interrupt on friday brining cold temperatures and rain looking at the 06z update, which will make for a pooor weekend. Thursday would have the highest chance of 25c this week but really I think about that time next week is likely to topple 25.

    Different Types of Heat

    in Spring Weather Discussion

    Posted

    Yes it is largely about the dewpoint and the "feel" of the heat can be calculated using the "heat index" scale. I was in Rome in June and July last year and it does still feel very hot in the shade, but it definately felt like dry heat and not humid at all. Portugal is another place I have frequented in the summer months and that also is pretty dry heat. If anyone could ever want some where where you can hardly breath and get exhausted by lifting a finger there are tropical places where temperature might "only" reach 85-95*F but the relative humidity is around 60-70% at that temp with dewpoints around 75-85*F. I don't think that can be imagined unless one were to go there. I think, the canary islands get a lot of fog and cool breezes from the sea that moves in and that is why when that stuff rolls across the islands it feels cool.

    Stormy skies over Lincolnshire 12th-15th April

    in Archived weather photography area

    Posted

    I'm amazed at the hail you got from that storm, it looked pretty severe! Technically if it is more than 2cm in diameter its a severe thunderstorm. Over where I was it must have been strengthening because it was giving light 1cm hail here and was mostly in the updraft stage, before dropping its load properly. It had a great structure to it when north of here though! Good pictures of the gust front.

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