Joackiie

MSI highlights sulphur-induced cloud changes. Source: EarthCARE, 2025, MSI Team, TROPOS

Wie sich Schiffsemissionen auf Wolken auswirken. Schematische Darstellung direkter und indirekter Aerosoleffekte (basierend auf Abbildung 2.10 in IPCC AR4). Quelle: Rob Roebeling, EUMETSAT

#EarthCARE measures how #ship #emissions change #clouds. Observing the #global impact of #shipping using #MSI from #space > www.tropos.de/en/aktuelles... -- - @esa.int @esaearth.esa.int #JAXA @tropos-de.bsky.social @leibniz-gemeinschaft.de #Pacific #climate #ClimateChange @meteoleipzig.bsky.social

The March 2026 edition of the #CopernicusClimate multi-system seasonal forecast is now available!

Very first trend for summer 2026 from 8 different models↙️: temperature anomaly, prob for very hot summer ↘️

This past week, Ukrainian drones struck and sank a Russian shadow fleet ship in the Mediterranean carrying liquefied natural gas from a sanctioned Arctic project. A European Space Agency researcher shows how a weather satellite captured the initial explosion.

Saharan dust persists over Central Europe, yet global solar radiation and PV output exceed yesterday’s levels!
Webcam and ceilometer data suggest a slight reduced dust load, possibly due to dry deposition.

ERA5 grid ~30 km

Nach ERA5 Winter 2025/2026 in den östlichen Alpen sehr trocken:

Wind shear enhances soil moisture influence on rapid thunderstorm growth - Nature Analysis of millions of events over sub-Saharan Africa shows that wind shear amplifies the impact of soil moisture in triggering rapidly developing thunderstorms.

Nature research paper: Wind shear enhances soil moisture influence on rapid thunderstorm growth

go.nature.com/4raMc5i

A massive cloud of Saharan dust is currently hanging over southwestern Europe, clearly visible this morning with characteristic rippled high clouds above the western Mediterranean.
The dust cloud, now detected at an altitude of about 3–4 km by ceilometers and webcams in the Swiss Alps.

Climatological winter 2025/2026 was globally the 5th warmest.
Across Europe it was split: too cold and too dry in the northeast, but too warm and too wet elsewhere.

Big kudos to @climatologist49.bsky.social

atmosphere.copernicus.eu/charts/packa...

A pronounced trough extending far south over Morocco is advecting warm air and Saharan dust—partly from Mali and Mauritania—northwards on southerly winds ahead of it.
Clearly visible now over northern Spain.
The dense dust cloud, at an altitude of ~3 km, will reach northern Switzerland tomorrow.

Latest MTG satellite imagery (Day Snow Fog RGB) shows fog over Lake Constance (with late-winter cold 4°C)
and early pre-spring convection with cumulus over the Black Forest, Jura, and western Prealps (white dots).
Alpine snow appears red...

die Cirren im Wiener Ceilometer:

Very sunny day in Switzerland - as seen by NOAA20: With often clear sky and highest temperatures of this (climatological) winter: 19° in Delémont/Jura.
But not directly at Lake of Constance: with lasting fog and cool SST only 7°C
Sahara dust of France, clearly visible then on Saturday...

Températures maxi observées à 2m sous abri le mercredi 25 février par ordre décroissant.
Jusqu'à 28° sur les Pyrénées Atlantiques.
meteolab.fr/obs/obs_cumu...

Apart from fog in the northern and low stratus in the southern lowlands, the whole Alps are presenting today in bright sunshine and with clear skies —for the first time in two weeks.

There is still plenty of snow (shown in blue): snow cover fraction is close to average for this time of year.

With northerly foehn over the Alps on the southern side of the Alps, temperatures are mild with 20 to 24°C—while with a southerly foehn in the Basque Country (northern Spain), they even reach up to 28°C!
Meanwhile, record-breaking cold in Greenland 🥶

In polar areas, there is an annual decrease in mean sea level pressure. In the Dec-Feb period, lower air pressure has been prominent across mainland Alaska.

Northern and eastern Europe still covered with snow (white) sea-ice (blue), whereas western Europe is now snow-free. In Switzerland, overall snow cover is below average; however, certainstations in lower Valais—e.g. La Creusaz (1,710 m), west of Martigny—have recorded unprecedented snow depths!

For the first time since records began in 1950, France’s multi-week national MSLP has dropped below 1000 hPa. The persistence of this low-pressure pattern across western Europe in recent weeks has been nothing short of historic.

Stradivari: Aussergewöhnliche Geigen dank Fichtenholz aus den Alpen Eine internationale Studie weist anhand von Jahrringen nach, wo Stradivari das Holz für seine Geigen fand und wie er es verwendete.

🎻🌲Eine internationale Studie weist nach, dass #Stradivari sein Holz überwiegend aus dem #Südtirol bezog. Forschende analysierten dazu WSL 314 Jahrringreihen von 284 authentischen Stradivari-Geigen. www.wsl.ch/de/news/stra... #CNR #Jahrringforschung #Dendrochronology #Geige #violin

Total Solar Eclipse on August 12, 2026 Total solar eclipse on Wednesday, August 12, 2026: Where and when is the Sun eclipse visible? Path map, animation, and local times.

Under 6 months until Europe has a brilliant view of a Total Solar Eclipse. I'll see 90% Partial from Newcastle. While rest of UK can see over 90%. Totality visible from Greenland, Iceland, Portugal, Spain, Russia. 12 August 2026. 🔭 🧪 www.timeanddate.com/eclipse/sola...

Significant Saharan dust concentrations over western Africa and the adjacent Atlantic, also over the Bodélé Depression (Chad/Niger).
The plume is projected to envelop the Canary Islands in coming days, potentially reaching western Europe by next weekend.

Daily ice extent in the Baltic Sea (km²) graph. The ice extent of the previous winter is shown as a dotted line and the extent of the current winter as a black line. The blue curves show the largest and smallest ice extents (min–max) and fractiles (25%–75%) for the winters of 2007–2022, and the green line shows their median extent (50%).

Today, the sea ice extent in the Baltic Sea reached 178,000 km², surpassing the winter 2018 maximum and marking the highest extent since 2012.

en.ilmatieteenlaitos.fi/ice-conditions

Winter 25/26 was so far in Nepal super dry.
With a weak upper-level trough (WD) today first pre-monsoon thunderstorms occured in central Nepal with locally up to 15 mm

First 10 days of last climatological winter month ... again too cold in northern/eastern Europe and too wet in southwestern Europe (by JMA).

Sunday morning in Nepal: fog in some valleys, thick stratus over Terai (adjacent to India).
During the day, cumulus cloud form along the foothills of the snow-covered Himalaya (depicted in blue). These clouds are parameterised in the models as weak convective precipitation, though it remains dry.

Here are the same maps but the time series is for the polygon that generally represents the mountains.

In the GAR (greater Alpine Region) January 2026 was a bit colder than usual ... and partly very dry and partly very wet.