Cevven
Senior Member
Posts: 35
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Post by Cevven on Dec 21, 2020 6:18:13 GMT -5
Map posted by someone on City-Data which shows percent of winters with measurable snow in the Southern U.S. I'm in the 10% to 20% zone. Portions of Georgia at my latitude get measurable snow less than 5%. Texas has better chances, though elevation gets higher going west into the state. That's wrong for the Raleigh-Durham area, where it's 90%, and for the OKC area, where it's 97%. Also, DFW is at 70%, not 40-60%. Where can I find the data where Raleigh-Durham has snowed at least 90% of the years quantified for the map? |
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Cevven
Senior Member
Posts: 35
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Post by Cevven on Dec 21, 2020 6:26:36 GMT -5
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Post by srfoskey on Dec 21, 2020 18:46:02 GMT -5
That's wrong for the Raleigh-Durham area, where it's 90%, and for the OKC area, where it's 97%. Also, DFW is at 70%, not 40-60%. Where can I find the data where Raleigh-Durham has snowed at least 90% of the years quantified for the map? |
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Cevven
Senior Member
Posts: 35
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Post by Cevven on Dec 21, 2020 23:53:53 GMT -5
Where can I find the data where Raleigh-Durham has snowed at least 90% of the years quantified for the map? Appreciate it. I like this site already. |
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Post by rozenn on May 12, 2021 15:50:48 GMT -5
Annual precipitation map for France:  |
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Post by srfoskey on May 13, 2021 1:14:55 GMT -5
Why is the area around Paris so dry?
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Post by rozenn on May 13, 2021 3:53:43 GMT -5
It doesn't get the heavy winter rain of the more western regions nor the late spring / early summer convective peak of more eastern regions. It's got a very consistent rainfall pattern: light but frequent stratiform winter precip is followed by a mix of moderate to heavy but rarer convective & stratiform precip in summer.
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Post by ral31 on May 15, 2021 18:30:00 GMT -5
Map of tornadoes by rating 1950-2019. The area from central MS thru north AL stands out in concentration of long-track violent tornadoes. In the Plains, violent tornadoes look more scattered, though there are some clusters. Most tornadoes in my area have been EF2 and below. The closest EF4 to my location tracked across rural areas northwest of Alexandria in December 1953. There have been a few EF-3's in my area since 1950 (the most recent was in December 2019 - it hit the northwest outskirts of Alexandria).  |
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Post by rozenn on May 16, 2021 4:36:45 GMT -5
2000-2012 tornado map of Yurop. I don't think you can expect observations to be consistent regarding weak tornadoes given that there are numerous different countries (not even talking about differing population densities which is also an issue in the US). OTOH, from EF-3 on, it must give a good idea of where tornadoes are most likely to occur. Seems like there's a kind of tornado belt from Germany to the Moscow area:  Historical map. The Lille area seems to be the bullseye when it comes to EF-4+ twisters lol.  By season:  |
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on May 16, 2021 4:54:11 GMT -5
The most recent or famous tornadoes to hit the London area have all been in December lol.
There was the one in December 2019 which went through Chertsey (F1). 7th December 2006 was the F2 tornado in NW London. The Gunnersbury tornado (F2/3) which hit west London and damaged Gunnersbury underground station occured on 8th December 1954.
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Post by ral31 on May 16, 2021 8:37:38 GMT -5
April looks like the most common month for the inland South and May across the Central and Southern Plains. November is the month of highest tornado occurrence for me according to the map below. The period from late fall into early winter does seem to produce more tornadoes here than the traditional spring season. Map covers 1950-2014.  www.ustornadoes.com/2015/04/22/the-month-with-the-most-tornadoes-across-the-country/ |
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Post by tommyFL on Jul 14, 2021 15:59:42 GMT -5
I've recently learned how to make maps in QGIS. I have a full dataset of 91-20 normals (temps, precip, snowfall, precip days, snow days) that I can use to make maps of anywhere in the US. If you'd like to see a map, just request it in this thread.  |
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Post by psychedamike24 on Jul 20, 2021 15:16:54 GMT -5
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Post by Cadeau on Aug 11, 2021 11:54:11 GMT -5
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Post by Cadeau on Aug 11, 2021 11:54:38 GMT -5
Note: I think the color progress got reversed on two Italian parks (Bracciano-Martignano Regional Park & Gargano National Park), which should be much wetter due to higher altitudes. Other than that, it seems pretty accurate.
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Post by kronan on Aug 11, 2021 14:47:55 GMT -5
Thought i'd share these: Swedish climate maps for the 1901-1930 period     They are from an old climate textbook, so I doubt you'll find them online. The biggest difference compared to later 30 year climate periods can be seen in May, which was a much colder month back then. Practically all of sweden was outside the 10C isotherm. |
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Post by tommyFL on Oct 12, 2021 16:48:51 GMT -5
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Post by tommyFL on Oct 12, 2021 18:44:28 GMT -5
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Post by tommyFL on Oct 13, 2021 15:53:26 GMT -5
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Post by jetshnl on Oct 13, 2021 15:57:25 GMT -5
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Lived:
Residence:
