Lars Lowinski

From #Canada to #Europe! The huge plume from the Canadian #wildfires has reached #France, the #UK and Northern European Countries, as shown in the #Copernicus #Sentinel5p CO map on Aug. the 5th. #AirQuality

Scotland has provisionally had its strongest August wind gust on record, reaching 82mph at Wick Airport, according to the Met Office.

The unusually intense low FLORIS reaches peak intensity overnight, with a central pressure of 974 hPa over the northern North Sea—exceptional for the season.
The storm even exhibits warm-core characteristics, acquiring a transient “tropical” structure with spiral and perhaps an eye.

Love these pics! And you're right, being there and catching the right moment is what counts 😀

The strongest earthquake on the planet since 2011 has triggered tsunami warnings for parts of Russia, Japan, and Alaska, as well as all of Hawaii. CNN's Will Ripley reports on the 8.8-magnitude quake.

Follow live updates: cnn.it/3J8mcah

It will feel like a tropical storm for people living / holidaying on the W Danish coasts or in far N Germany in terms of rain and wind (only with lower temperatures and no, it is NOT a tropical system). High-res models indicate very heavy rain through late WED and local gusts between 80 and 100km/h

A map showing temperatures across Turkey, Saudi Arabia and northeast Africa on Friday 25th July 2025. Silopi, Şırnak, Turkey is marked on the map and a temperature of 50.5 Celsius is also marked. This is a new temperature record for Turkey.

Turkey recorded its highest temperature on record on Friday with 50.5°C recorded in Silopi ⚠️📈

This exceeds the previous record of 49.5°C recorded on 15th August 2023 🌡️

This extreme heat is bringing serious health impacts and giving a very high risk of wildfires 🔥

In most of the world day-to-day weather variations are still much larger than long-term global warming.

As a result, both daily record highs and daily record lows remain common.

However as the world warms, new daily record highs consistently far outnumber new daily record lows.

🧪

A quite remarkable rainfall event is unfolding in south and east Denmark. Some stations have seen over 100mm in the past 24 hours, with Neble in the far SE recording 136.7mm so far.
The Danish all-time 24h record is 168.9mm recorded in July 1931.
There are increasing reports of flooding.

Exakt. Und es werden auch eher um die 47C und das nur an ein, zwei Orten. Aber 50C liest sich halt runder, noch extremer und dann "klickts" eben besser.

Tonight NYC recorded two inches of rain in less than an hour — for only the 6th time in city history. (Central Park records begin in 1869.)

The city's drainage system is built to handle just 1.75"/hour.

Increasing rainfall intensity is one of the most damaging aspects of climate change.

‼️ Concern continues to grow for dangerous & life-threatening flash flooding in the same areas hit by last weekend's devastating floods, with localized rain totals >10-12" possible.

WPC Discussion: www.wpc.ncep.noaa.gov/metwatch/met...

(Read the quoted posts for how the forecast evolved today)

Dunning-Kruger at work 😉 Es ist schon recht frustrierend zu sehen, in welchem Maße das oft der Fall ist.

Good point! Educating people about siren sounds, what they mean, what to do, how flash flood sirens may be different from tornado warnings, etc. is vital of course.

Why isn't such a system already in place anyway? There are tornado sirens in many severe weather prone parts of the U.S. as part of the weather warning communication framework. The same should happen in flash-flood-prone regions, and this part of Texas definitely is one!

Love the visualisation! Would it be possible to create a similar overview for more (all...) European countries?

Sea surface temperatures reached exceptional levels in the NW Mediterranean in June–early July. The #MHW abruptly ended at the #LOV station in Villefranche, France, after a windstorm caused strong mixing. SST fell from 28.7°C to 18.8°C in ~24 h.
🌊

4 Reasons Why Perfect Weather Forecasts Still Aren’t Enough Even if meteorologists deliver a perfect forecast, there are barriers that prevent intended or appropriate responses.

This article here is once again very relevant in this context: www.forbes.com/sites/marsha...

And that's where Finn's part comes in. Even in countries used to severe weather, biases, wrong perceptions and lack of context/understanding can lead to bad decision-making on several levels even with a perfect forecast. Warning fatigue may come into play as well. It's complex.

It's not just authorities though. Weather comms generally works pretty well (and fairly quick) in the US compared to here. I'd assume that WEA alerts went out in time. The question is why wasn't there an adequate response, both by camp organisers but also by every individual in the area.

Photo by Elisa Marchiori

OTD 10 years ago a devastating (I)F4 tornado, the first of its kind since 1970, struck the Riviera del Brenta area of the Venice province causing massive damage, destroying numerous buildings, throwing cars and debarking trees. 1 man died and 72 more people were injured

WPC issued as many as six MPDs for the deadly flash flooding in the TX Hill Country starting yesterday evening and lasting through much of today. The first MPD generally set the stage for what was to come, while the next three shown were as the event unfolded.

The WPC statements and the NWS flash flood emergencies were issued, but it hit in the middle of the night in a highly vulnerable area on a holiday weekend. So sad.

The flash flood disaster in Texas is a stark reminder that despite warning systems working very well with plenty of theoretical lead time, the last, crucial bit of communication and subsequent decision/making by the people affected remains a challenge.

Two days of severe #heat with over 38 °C in #Germany! Such temperatures were and still are extreme for the country and therefore potentially dangerous. However, the frequency of severe heat events (>= 38 °C) has been noticeably increasing for around 20 years.

Übel 😕 In welchem Zeitraum ist das gefallen?

Yes! One of many highlights of the week. I really enjoyed being on this mobile nowcasting trip with you guys 🙌🏻

Hier sind wir bei einer weiteren Kommunikations-Baustelle im Wetterbusiness. Mehr Neutralität bei der Berichterstattung, mehr relevanter (!) Kontext und falls nötig auch die Schattenseiten der Sommerhitze beleuchten. Das gilt übrigens nicht nur für's Radio und/oder Privatsender

Und wenn es dann mal für ein paar Tage auf normale Werte abkühlt, wird der Hitze gefühlt nachgetrauert.
Dabei werden die meisten Menschen außerhalb der Dudelfunk-Blase es mittlerweile wohl gut finden, wenn es zwischenzeitlich mal zum Durchlüften reicht und die Gärten einigermaßen Regen abkriegen.

Time series of average daily high temperatures in Western Europe during June to August from 1850 to 2024.

Western Europe summer high temperatures have increased ~2.6 °C (4.7 °F) during just the last 50 years.

That's in a world with only 1.4 °C of global warming.