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Lars Lowinski

@larswx.bsky.social
494 followers 221 following 284 posts

RMetS Chartered Meteorologist, photographer, occasional storm chaser. Interested in severe weather, natural hazards and risk communication. Opinions are my own. My photography: larslowinski.com

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Lars Lowinski @larswx.bsky.social · 13h
Mushroom season is in full swing here after recent heavy rain, followed by cool, misty mornings and mild afternoons. Found a few clusters of "porcelain fungi" in a nearby forest today. #photography
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Lars Lowinski @larswx.bsky.social · 30/09/2026
📉 The Rhine in Bonn is currently exceptionally low at just 59 cm. For context: • Mean height: ~290 cm • Previous 2018 record low: 81 cm Despite a slight bump expected from heavier rain this Thu/Fri, gauge heights are predicted to stay very low heading into early October. #hydrology
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Lars Lowinski @larswx.bsky.social · 30/09/2026
Extreme rainfall ongoing across southern France, with some stations already reporting around 300 mm since the event began late Tuesday. Above-normal SSTs in the western Mediterranean are also contributing to an enhanced moisture supply #weather
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Lars Lowinski @larswx.bsky.social · 28/09/2026
Congratulations @essl-ecss.bsky.social! Here's to the next 20 years of important pan-European severe weather research, education and training.
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Reading Meteorology @unirdg-met.bsky.social · 28/09/2026
The latest Met blog on research recreating the D-day weather forecast using modern systems on the back of the film "Pressure" that dramatised one of the the most important weather forecast in history delivered by Meteorologist James Stagg in June 1944: blogs.reading.ac.uk/weather-and-...
blogs.reading.ac.uk
War drama Pressure depicts D‑day’s weather forecast – what we found when we recreated the challenge using modern systems
Andrew Charlton-Perez, University of Reading and Ed Hawkins, University of Reading Meteorologist James Stagg gave what many regard as the most important weather forecast in history in June 1944. Th…
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Dakota Smith @weatherdak.bsky.social · 26/09/2026
Hurricane Polo looks simply spectacular from space. A Category 5 beast.
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Zeke Hausfather @zekehausfather.com · 21/09/2026
This year's El Niño event is moving into record territory, with the daily Oceanic Niño Index (ONI) tying the record previously set during the 2015/2016 super-El Niño. My latest over at Carbon Brief: www.carbonbrief.org/...
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Nahel Belgherze @wxnb.bsky.social · 15/09/2026
Paris, France, has now recorded 100 days above 25°C (77°F) in 2026 so far. This has never happened before in a calendar year since records began 154 years ago, in 1872.
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Copernicus ECMWF @copernicusecmwf.bsky.social · 10/09/2026
🌡 August #C3S Climate Bulletin reports that August was the joint-warmest month on record & 1.65°C above the estimated pre-industrial level. Western Europe saw its warmest summer on record, while the average sea surface temperature across the extra-polar ocean was also the joint highest on record. ⬇️
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Lars Lowinski @larswx.bsky.social · 08/09/2026
So beeindruckend und beängstigend das auch ist und (deshalb?) gerne mit dem Klimawandel in Zusammenhang gebracht wird, aber es gibt hier bislang keinen belastbaren Trend. Auch starke Tornados hat es in Europa immer wieder gegeben, teils mit noch schlimmeren Schäden als Ende August in Pomas, FR.
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Lars Lowinski @larswx.bsky.social · 08/09/2026
Correct. Many people in Europe are unaware of the dangers posed by extreme and rare events such as the Pomas tornado, even though they are not a new phenomenon (and that's where the connection to climate change gets tricky).
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Lars Lowinski @larswx.bsky.social · 08/09/2026
Auf YT gab es dieses und andere Videos vom Gelände deieser Firma vor einigen Tagen bereits, wurden dann aber wieder offline genommen. In der Tat, das sind für Europa außergewöhnliche Aufnahmen!
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Met Office - weather and climate @metoffice.gov.uk · 07/09/2026
More than 270,000 passengers have been stranded across Indonesia after the Anak Krakatau volcano erupted, grounding over 2000 flights 🌋 Volcanic ash has forced the closure of several airports, while schools have moved online and some shipping operations have also been disrupted
A satellite image of the Anak Krakatau eruption which took place over the weekend.
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Lars Lowinski @larswx.bsky.social · 03/09/2026
Exactly. Trees (esp. if not well managed) can be a storm and/or wildfire risk close to buildings and roads. But plant the right kind of trees considering that context (or other types of green spaces) and it can still be a major improvement to local microclimates.
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Adrian Leyser Sturm @leysersturm.eurosky.social · 03/09/2026
A band of tropical-like rainfall will extend tomorrow from the British Isles through northern Germany to the Baltic States, associated with an atmospheric river and an extremely high amount of precipitable water. #Weather #Forecast Image: @kachelmannwetter.com kachelmannwetter.com/de
Anomaly of precipitable water on 4 Sept, 12 UTC.24h precipitation on 4 Sept, 17 UTC.
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Zeke Hausfather @zekehausfather.com · 28/08/2026
It is premature to attribute the Nepal disaster to climate change: we cannot yet say how much warming temperatures and melting glaciers contributed to this specific event. But risks of glacier collapse in a warming Himalaya are clearly growing. My latest at The Climate Brink:
theclimatebrink.com
What we can and cannot say about climate change and the Nepal disaster
Formal attribution is premature, but the collapse happened on a rapidly warming mountain in a valley losing its ice
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Lars Lowinski @larswx.bsky.social · 28/08/2026
Last night's storms in central and eastern Belgium didn't turn out to be quite as intense as initially expected (they ended up being mainly elevated and weakened by previous mid-level cloud/dust and convection), but there were some nice moments anyway. #weather #photography
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Dr. Wendy Bohon @drwendyrocks.bsky.social · 26/08/2026
Some early reports said that the horrifying flooding in Nepal was the result of an earthquake. However, the signal was actually the recording of the landslide. TL:DR - there was no earthquake, it was a landslide. earthquake.usgs.gov/earthquakes/...
Screen shot showing the USGS event page. The landslide released the same amount of energy as a M5.2 earthquake
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Lars Lowinski @larswx.bsky.social · 26/08/2026
33 über 13 spricht auch eher für hochbasige Geschichten mit mehr Sturm- als Tornadopotential.
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Lars Lowinski @larswx.bsky.social · 26/08/2026
Hm, sieht eher nach Gustnado an einer eher outflow-dominierten Zelle aus, wahrscheinlich auch getriggert durch die Umströmung zwischen den Wohnblöcken? METAR des Flughafens kurz vor dem Gewitter LZIB 201500Z 08008KT 040V110 9999 VCTS FEW020 FEW050CB 33/13 Q1007 TEMPO 26035G55KT 1000 +TSRAGR
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Weather History @weatherhistory.bsky.social · 24/08/2026
August 24th, 1992: One of America's most infamous hurricanes slammed southern Florida. Andrew was one of only four hurricanes to strike the US as a Category 5. The storm damaged/destroyed over 160,000 structures (mainly from wind) and killed 44 people in the state.
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Lars Lowinski @larswx.bsky.social · 24/08/2026
Tornado in the Aude Département in S France just now.
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Lars Lowinski @larswx.bsky.social · 24/08/2026
Potentially significant severe weather likely across NE Spain/S France today. The broad-scale setup then remains favourable for additional strong to severe thunderstorms later this week, particularly across France, the Benelux and SW Germany. #weather
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Ryan Katz-Rosene, PhD @ryankatzrosene.bsky.social · 23/08/2026
And we have a new all-time record warm *absolute* temperature for the oceans, according to ERA5 (which goes back to 1940): August 21st likely marked the warmest Sea Surface Temperatures have been for the entire Holocene period. Should be major news!
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Lars Lowinski @larswx.bsky.social · 23/08/2026
Hier im südlichen Rheinland sind wir nach den Regenfällen der letzten Tage eine der wenigen Inseln der Glückseligen.
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Marcus Beyer @meteomabe.bsky.social · 22/08/2026
A severe weather and #tornado outbreak occurred on 19.08.2026. The German Tornado Expert Group (TOREX) is working intensively on the analysis of this event. DWD is also part of TOREX, jointly analyzes the large amount of info available. A first overview map showing the results has now been created.
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Lars Lowinski @larswx.bsky.social · 22/08/2026
Jackpot! After many weeks of mainly hot and dry weather which resulted in exceptional wildfires (for this part of the world) and record-low river levels just a week ago, thundery rain produced over half of the average August rainfall in under 12 hours here and in the immediate surroundings. #weather
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Prof Friederike Otto @frediotto.bsky.social · 19/08/2026
Europe’s seas are experiencing heat that would have been virtually impossible in a pre-industrial climate. In the Mediterranean, summer SSTs have intensified by 3°C, far exceeding global warming, destroying marine life & dramatically altering our seas. www.worldweatherattribution.org/climate-chan...
a map of sea surface temperature anomalies in July 2026 around the European coast showing very warm anomalies in the Atlantic and Mediterranean
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Lars Lowinski @larswx.bsky.social · 18/08/2026
Once again there's a smell of burned wood in the air today. The air quality in the greater Bonn area remains moderate to poor due to further smoke from the #highfens #wildfire that is being advected to the ENE.
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Lars Lowinski @larswx.bsky.social · 15/08/2026
Beneficial rain showers are moving across the state of NRW and nearby Belgium...but part of that rainfall evaporates as the sub-cloud layer is still very dry, including in the vicinity of the two major wildfires near Aachen (shown in blue). Any amounts will be too small to help weaken the fires.
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Lars Lowinski @larswx.bsky.social · 15/08/2026
Climate change increases the frequency and duration of droughts and fire weather conditions — it makes fires worse. But it doesn't start them. 90–95% of wildfires are ignited by humans, deliberately or accidentally. The remaining few percent are caused by lightning.
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Lars Lowinski @larswx.bsky.social · 14/08/2026
It’s now affecting at least 100 hectares in the area south of Eupen. There is a real danger that it may turn into something similar to the April 2011 wildfires when about 1000ha were destroyed in an event that lasted many days.
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Marcus Beyer @meteomabe.bsky.social · 14/08/2026
The forest fire in Belgium (Hohe Venn) looks really bad. Its smoke plume now extends far eastward. It was already quite smoky in large parts of Rhineland-Palatinate and North Rhine-Westphalia, but with this rapidly escalating fire in Belgium, it is now much worse.
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Lars Lowinski @larswx.bsky.social · 14/08/2026
Very large (by regional standards) wildfire in the Nordeifel hills west of #Cologne since yesterday. Fire weather conditions continue with very dry fuels, extremely low RH and high temperatures. Winds aren't particularly strong, though, thankfully. #fireweather ga.de/region/vorei...
ga.de
Waldbrand in Hürtgenwald: Große Rauchwolke zieht über Bonn und die Region
Das aktuelle Feuer in der östlichen Eifel hat Auswirkungen bis in den Rhein-Sieg-Kreis hinein: Die Rauchwolke zieht über Bonn und die Region. Für die Bevölkerung gibt es bereits eine Warnung.
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Lars Lowinski @larswx.bsky.social · 13/08/2026
(source: weatherobs.com)
weatherobs.com
Weatherobs
Global weather observations (METAR, SYNOP, BUOY, SHIP, TAF, CWOP) decoded to enable display of latest temperatures, weather, snow depths, precipitation, wind and wave conditions and more
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Lars Lowinski @larswx.bsky.social · 13/08/2026
Hmm, looks like GFS wasn't so OTT after all 🫠 Must have been an "ideal" setup for maximised sensible heat flux and strong superadiabat above the parched soil.
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Lars Lowinski @larswx.bsky.social · 13/08/2026
Extremely low relative humidity readings once again across large parts of W Europe this afternoon, down to 15 or 10% in a few locations. Wildfire risk remains very high even though winds aren't that much of a factor. #weather #drought
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Lars Lowinski @larswx.bsky.social · 13/08/2026
Perfect conditions to watch the #eclipse near Bonn, Germany on a warm Wednesday evening #photography
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Lars Lowinski @larswx.bsky.social · 12/08/2026
GFS once again doing its thing up there 🫠 A timely reminder of the importance of using a model blend and not rely on single model outputs with all inherent biases, especially during significant events like the current n-th heatwave. #weather
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Mika Rantanen @mikarantane.bsky.social · 10/08/2026
In terms of temperature anomaly for the last three months (MJJ 2026 period), France is the most anomalous country in the world with +2.8 °C above the 1991-2020 average.
Map showing 2-m temperature anomaly for May 2026 to Jul 2026 from ERA5 reanalysis. France and the whole western Europe is dark red, indicating much warmer than normal conditions.Bar diagram showing the top 10 and bottom 10 countries in terms of temperature anomalies from normal. France ranks the first warmest.
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Lars Lowinski @larswx.bsky.social · 06/08/2026
Things aren't much better across the pond as far as excessive heat is concerned. At least we get a bit of a break in western Europe right now before temps rise again from Saturday...I for one am looking forward to autumn now. #weather
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Lars Lowinski @larswx.bsky.social · 06/08/2026
Very atmospheric! You can almost feel the cool air and smell the wet earth - what a treat in this scorching summer 😅
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Lars Lowinski @larswx.bsky.social · 05/08/2026
Very interesting, thanks for sharing. Seems like we can't beat July 1800 then...cue the CC sceptics saying that we've all seen it before 🫠 What's also noticeable is the large range of July totals in earlier times.
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Lars Lowinski @larswx.bsky.social · 04/08/2026
Some shots from last night's storms just S of Bonn. Nothing to write home about in terms of (much needed) rainfall though. #weather
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Lars Lowinski @larswx.bsky.social · 04/08/2026
Heftig! Und die Station liegt ja nun wahrlich nicht in der Stadt, bzw. in einem dicht bebauten Umfeld.
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Weather History @weatherhistory.bsky.social · 04/08/2026
August 3, 2008: France's most recent violent tornado ravaged several communities. Per the ESSL, the F4 had a 10.5-kilometer-long path and was up to 200 meters wide. Hundreds of homes and other buildings were damaged or destroyed in Hautmont. Three people were killed.
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Lars Lowinski @larswx.bsky.social · 03/08/2026
Schrödinger’s Nacht gibt’s auch hier in Deutschland. 🫠 Der Begriff, den sie in diesen Absätzen zum Thema “Tipps gegen die Hitze” oft suchen, heißt Klimatisierung…
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Met4Cast @met4cast.net · 03/08/2026
Sub-surface Pacific temperatures are now warmer than ever recorded having exceeded 1997's peak by 0.36°C. Further warming is still likely before they peak, little doubt now that this will be the strongest El Nino event in recorded history.
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Nahel Belgherze @wxnb.bsky.social · 01/08/2026
It’s now official: June–July 2026 was the most anomalously warm two-month period ever recorded in France by a staggering margin. France is now virtually certain to record its warmest summer on record.
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Lars Lowinski @larswx.bsky.social · 30/07/2026
Extremely warm and dry midday profiles ahead of the line of showers and storms in W Germany today. Hybrid/inverted-V profiles supporting strong outflow and locally damaging winds as the storms generate increasingly large cold pools this afternoon. #weather
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