Marcus Beyer
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meteomabe.bsky.social
Marcus Beyer
@meteomabe.bsky.social
#Forecaster and Hobby #Gardener | Works at German Weather Service: operational forecaster and supervisor | #tornado expert group

Especially interested in climatologies, #synoptics, #severeweather and #tornados.
Last weekend was a wonderful #winter weekend with bitterly cold nights. For #Frankfurt it was the coldest night since January 2024 and the coldest November night since 36 years. Würzburg (records starting 1947) set a new November #record with -10.7°C (old: -10.5°C (15.11.1983)).
November 28, 2025 at 9:24 AM
Year 2025 at #Zugspitze.Here daily mean temperature in comparison with MeanMax and MeanMin of each day since records startet. Similar graphics for Max and Min temperature. Not one single negative record but several positive day records (10 mean, 9 max, 8 min). 6.11. is stunning and a new Nov record.
November 27, 2025 at 10:37 AM
What a wonderful November #winter day! Enjoyed it a lot.
November 23, 2025 at 3:06 PM
This night was even colder with below -9 degree without any snow. This is remarkable for November, imo.
November 23, 2025 at 8:45 AM
That was a really cold November night with around -8 degree. It probably was the coldest for quite some years. And this only 4 nights after we actually had our first frost of the season. That is quite something.
November 22, 2025 at 8:46 AM
It was as as always a wonderful and enlighting conference with the severe convective family at #ECSS2025. Apart from that I will also miss this wonderful bike city. It was a privilege to live one week in the aimed future and fun to go by bike these days.
November 21, 2025 at 4:38 PM
On my way to #ECSS2025 in Utrecht. Together with my colleague Kathrin Wapler I will present three posters about tornadoes. One covers the upcoming paper about tornado statistics in Germany. Looking forward to meet many experts on severe weather and friends!
November 16, 2025 at 2:54 PM
I have never seen the desert sand in the atmosphere as clearly as I do today.
November 14, 2025 at 3:36 PM
The models still show no sign of the first night frost in the Rhein-Main region until November 10. My frost indicator, the nasturtium, is still in good condition.
October 29, 2025 at 9:40 AM
Absoluteley stunning, mesmerizing...I have no words. Cannot imagine that I have ever seen such a symmetric Atlantic hurricane. Center pressure 892 hPa. It is really terrible that #Melissa is making landfall with such a strength! Image from tropical tidbits.
October 28, 2025 at 3:04 PM
Further into the future, the path of #Melissa becomes very uncertain, so it is not clear if or how it may influence the weather in Europe over the coming weekend and next week.
October 27, 2025 at 7:51 PM
Hourly wind gust forecast and track of major hurrican #Melissa as seen by ICON model 12 UTC run (27.10.).
October 27, 2025 at 7:51 PM
Possible #tornado yesterday in #Sieberbach near Sulzbach/Murr (23.10.2025, 09:45 MESZ) . Radar product looks suspicious with rotation couplet in rel doppler winds.
October 24, 2025 at 8:47 AM
Animation of pressure and pressure tendeny (ICON6) of #Joshua ( #Benjamin). Interesting is that there are two lows. While the first disappear later on, the southern one is responsible for the development during night to Friday (storm associated with the trough).
October 22, 2025 at 8:48 AM
October 15, 2025 at 8:11 PM
Here is another picture from my fotowebcam this evening!
October 9, 2025 at 8:55 PM
Nice evening atmosphere
October 9, 2025 at 4:27 PM
Very good, Bram! It was indeed 20.05.2006. That was the biggest summetime tornado outbreak since at least 2000 for Central Europa, with 16 confirmed tornadoes in the ESWD. Graphic shows wind and tornado reports of that day.
October 8, 2025 at 8:57 AM
Quite a difference in precipitation in Germany when looking at the accumulated totals over the last 30 days: below 20 mm north of the Harz and in parts of Berlin, but up to 250 mm in parts of Saarland.
October 7, 2025 at 2:52 AM
Does anybody remember that day? What #severeweather would you expect with that radar animation?
October 7, 2025 at 2:12 AM
Now the #tornado stripes seperated into strength. The second graphic shows weak (IF0 - IF1.5) vs. strong (IF2+) tornadoes. There is a disproportionately high maximum of strong tornadoes in the first 10 years compared to weak tornadoes. The average was 9 compared to 3 in the 10 years that followed.
October 5, 2025 at 10:42 PM
When looking into tornadic day this is becoming more obvious with a maximum of land tornados in 2004 instead of 2006 (waterspouts). Also the maxima in 2014 and 2016 are mainly due to waterspouts. A clear minimum is visible between 2017 and 2020, especially for land. 3/3
October 3, 2025 at 1:24 PM
We can now go more into detail by seperating each year into land and water events. Still a maximum can be seen for 2006 but one can also see, that this year was dominated by waterspouts. Also other relative maxima coming later have mainly their origin in waterspouts. 2/3
October 3, 2025 at 1:24 PM
Your probably all know the #tornado stripes for Germany that I have posted several times. Starting at 2000 since with a robust dataset from then on. It shows a clear maxium for the years surounding the recors year 2006. #showyourstripes 1/3
October 3, 2025 at 1:24 PM
Development of #Humberto since Sat 00UTC. Satellite and ICON13 ppw + 10 m streamlines.
September 28, 2025 at 7:58 AM