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Reposted by Joackiie 🇬🇱

Simon Gascoin @sgascoin.bsky.social · 01/10/2026

After many attempts, CNES's Pléiades satellites finally captured a clear-sky view of the source area of the devastating flood in Nepal. The images show the steep landslide scar near the glacier and the huge deposits in the proglacial valley... More here: www.cesbio.cnrs.fr/multitemp/cl...

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Joackiie 🇬🇱 @joackiie.bsky.social · 01/10/2026

First global temperature analyses for September 2026 are in. Despite unusually cold Greenland and Antarctica, JMA reanalysis (1991–2020 baseline) ranks it 3rd warmest, while CFSR (baseline 1981-2010) ranks it 2nd warmest. September 2023 was definitely warmer.

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Joackiie 🇬🇱 @joackiie.bsky.social · 29/09/2026

After a local thunderstorm, east of Yerevan 🇦🇲

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Joackiie 🇬🇱 @joackiie.bsky.social · 25/09/2026

On Wednesday September 2026 ends and was significantly warmer than usual across Europe! September 2023 was locally even warmer, but 2026 is so far the warmest calendar year on record in places such as Zurich, Switzerland.

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Joackiie 🇬🇱 @joackiie.bsky.social · 19/09/2026

Record-low water level at Lake Constance in Bregenz, Austria, this morning – in a 161-year measurement series! And there is little relief in sight: all weather models indicate virtually no precipitation over the next 10 days!

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Prof Friederike Otto @frediotto.bsky.social · 17/09/2026

What are known causal factors behind rock-ice avalanche near Nepal–Tibet border? @wwattribution.bsky.social Vulnerable slope, potentially weakened by 2015 earthquake, definitely destabilised by climate change through glacier retreat & permafrost thaw. www.worldweatherattribution.org/rapid-warmin...

Height of the 0C isotherme in recent years around the rock-failure

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Österreichischer Alpenverein @alpenverein.bsky.social · 18/09/2026

Eines der verlustreichsten Gletscherjahre erwartet! 🔥 Unser Gletschermessdienst gibt erste Details der Messungen an der Pasterze bekannt 👇 www.alpenverein.at/portal/servi...

alpenverein.at

17.09.2026 - Eines der verlustreichsten Gletscherjahre erwartet

Gletschermessdienst des Alpenvereins gibt erste Details der Messungen an der Pasterze bekannt.

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Joackiie 🇬🇱 @joackiie.bsky.social · 16/09/2026

After a record-breaking summer, the first half of the first autumn month was once again much too warm and much too dry across western and southern Europe. (by JMA)

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Zeke Hausfather @zekehausfather.com · 14/09/2026

Here is the latest combined forecast across all 14 models, compared to past strong El Nino events. It shows just how extreme and unprecedented this event is forecast to be:

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Joackiie 🇬🇱 @joackiie.bsky.social · 14/09/2026

While the tropical Atlantic remains a ghost town, MTG imagery shows an impressive thunderstorm cluster over the southern Mediterranean with potential for a “Medicane”! Some ECMWF members deepen it to 988 hPa within 48h: severe weather (flooding, storm) first for Malta, later Libya and Greece.

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Tomer Burg @burgwx.bsky.social · 12/09/2026

There is finally a potential for a hurricane or strong tropical cyclone east of North America — but it’s in the Mediterranean. There’s been a growing signal among ensembles for a medicane, or subtropical/tropical cyclone in the Mediterranean, that may develop this week.

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Joackiie 🇬🇱 @joackiie.bsky.social · 11/09/2026

The North Pole still has 24-hour daylight, but the Sun is only ~5° above the horizon. Net radiation will turn negative in the coming days; polar night begins around 24 September. A buoy at 89.223°N (86 km from the Pole) reports −3°C, likely deployed by KV Svalbard in late August.

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Joackiie 🇬🇱 @joackiie.bsky.social · 11/09/2026

The first 10 days of September continued the hot and dry summer of 2026 across western and southern Europe, while northern Europe remained cool and wet. JMA analysis:

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Joackiie 🇬🇱 @joackiie.bsky.social · 10/09/2026

Today, 10 September, marks the climatological peak of the Atlantic hurricane season. Yet there are no named storms, tropical depressions or credible disturbances, with little activity expected soon due to record wind shear and hot, dusty Saharan air. Perhaps end of September...

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Joackiie 🇬🇱 @joackiie.bsky.social · 09/09/2026

What a difference a day makes: temperatures plunged by almost 20°C across southern Bavaria within 24 hours! End of the hot summer in Central Europe — or is there another very warm spell around the equinox? 30-day forecast for Zurich ↘️

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Joackiie 🇬🇱 @joackiie.bsky.social · 08/09/2026

With abundant sunshine (MTG, 11 UTC) and warm air from Spain and the Canary Islands (backward trajectories), Zurich once again exceeds 30°C today. A sharp drop follows on Wednesday with an active cold front. Probably the last heat: the latest 30°C day was 20 Sep 1947. Next chance: mid-April 2027 :-)

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Joackiie 🇬🇱 @joackiie.bsky.social · 06/09/2026

Once again, a sunny and warm summer Sunday in the Alps — seen by NOAA-20 at ~12 UTC. But wildfires are burning in southeastern Europe, especially Bosnia and Herzegovina, Montenegro and northwestern Greece. The smoke is also captured by the CAMS model and will spread only locally.

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Joackiie 🇬🇱 @joackiie.bsky.social · 06/09/2026

As usual at this time of year: the first morning fog, today across central and eastern Switzerland, but also in the usually less fog-prone north. Seen by MTG Geocolor RGB ↙️ and Cloud Type RGB ↘️ (btw: greenish areas = the little snow remaining in the high Alps).

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Joackiie 🇬🇱 @joackiie.bsky.social · 06/09/2026

Climatological summer 2026 (for accounting purposes, the period from 1 June to 31 August) was record-warm and dry across western and southern Europe — but NOT in northern and eastern Europe.

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Wisc-Satellite @wisc-satellite.bsky.social · 05/09/2026

During the ongoing eruption of #Krakatau in Indonesia, 10-minute JMA Himawari-9 True Color RGB images today showed a broad lower-altitude area of volcanic ash (shades of brown) along with pulses of higher-altitude volcanic clouds (a mixture of water vapor, ash and SO2).

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Climatologist49 @climatologist49.bsky.social · 05/09/2026

Global sea surface temperature (SST) departures for August 2026. It was the warmest August, and any month, SST on record. It was also the first time that any month had a global average SST over 19.0C. 🔥🔥🔥

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Reposted by Joackiie 🇬🇱

Climatologist49 @climatologist49.bsky.social · 05/09/2026

The Mediterranean Sea August sea surface temperature (SST) of 28.3C is not only the warmest for any August on record, but the warmest for any month on record. 🚨🔥🚨

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Joackiie 🇬🇱 @joackiie.bsky.social · 05/09/2026

According to ERA5: August 2026 was globally the warmest since 1940, probably also the warmest month ever recorded (with 16.597° versus 16.95° in July 2023). Lower than usual temperatures in Scnadinavia, Argentina and parts of Antarctica

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Joackiie 🇬🇱 @joackiie.bsky.social · 05/09/2026

New ECMWF seasonal forecasts are in: climatological winter 2026/27 is forecast to be warmer and wetter than average across Europe. Switzerland has a 40–50% probability of an exceptionally wet and record-warm winter. Wintry conditions are most likely in Scandinavia.

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Francois Jobard @francoisjobard.bsky.social · 05/09/2026

Hier de nombreux records de chaleur ont été battus dans les Alpes (notamment). Par exemple 31.5 °C à Chamonix (mesures depuis 1880), battant les 31.1 °C du 3 septembre 1911. Pourtant on ne peut pas dire que cette chaleur "nous vient d'Espagne" comme on peut parfois entendre...

Une rétro-trajectoire du modèle HYSPLIT de la NOAA indique qu'une particule d'air vers 1500 m vers Bourg-Saint-Maurice (qui a nettement battu son record hier) hier provenait du milieu de l'Atlantique avec un réchauffement par compression adiabatique sous l'anticyclone...

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Joackiie 🇬🇱 @joackiie.bsky.social · 05/09/2026

Volcanoe Anak Krakatau is making headlines today with volcanic ash reaching almost FL500 (~15 km)! But smoke is an even bigger issue in parts of Malaysia, where haze from Indonesian forest fires has triggered an emergency. Prolonged drought linked to the strong El Niño is worsening the fires.

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Climatologist49 @climatologist49.bsky.social · 02/09/2026

🔥 August 2026 not only beat the record for the warmest August on record, but it beat July 2023 for the warmest overall month on record for Planet Earth since 1940 - and likely the warmest during the entire Holocene. 😢

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Joackiie 🇬🇱 @joackiie.bsky.social · 30/08/2026

Sentinel-2 satellite imagery of the “ground zero” of the Nepal–Tibet flash flood, using a moisture index: orange/red indicates barren soil. 24 Aug (before) ↙️, 27 Aug (two lakes and an impressive run-up: red arrow) and 29 Aug (one lake remaining).

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Joackiie 🇬🇱 @joackiie.bsky.social · 28/08/2026

Two days before Nepal’s disaster: the northern side of Langtang Lirung was snow-free up to 5500 m (arrow). A possible icefall (red square) reached the valley floor (~3000 m). Sentinel-2 imagery from 27 Aug shows barren soil (red), a new lake (black) and the devastated border station (green circle)

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Jan Beutel @janbeutel.bsky.social · 26/08/2026

And it is estimated as M5.69 given the newest seismic analysis by GFZ - wow. Likely not just a little big chunk of ice, despite the 1000+m fall height but for now this is speculative. geofon.gfz-potsdam.de/eqexplorer/e...

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Joackiie 🇬🇱 @joackiie.bsky.social · 26/08/2026

Latest Sentinel-2 imagery from the Nepal–Tibet border region, acquired on 24 August 2026. The red square marks a possible source area of a GLOF (glacial lake outburst flood), while the red circle highlights the devastated border station.

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Joackiie 🇬🇱 @joackiie.bsky.social · 26/08/2026

Early morning sudden flash flood in Rasuwa valley/central Nepal: 7 dead, hundreds missed! This valley is main trade route between Nepal and Tibet. Nearby stations recorded up to 119 mm last 24h (dhm.gov.np), but cause of this catastrophe is glacial lake outburst flood!

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Joackiie 🇬🇱 @joackiie.bsky.social · 26/08/2026

August 2026 is set to end as the warmest on record globally, and also across western and southern Europe — but not Scandinavia. According to 14 weather models, anomalous warmth will persist through climatological autumn, with wetter-than-average conditions likely in western and southern Europe.

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Joackiie 🇬🇱 @joackiie.bsky.social · 26/08/2026

MTG visible satellite imagery this morning shows an impressive amount of Saharan dust over the central and southern Mediterranean. The 850-hPa θe field traces the air mass back to Mauritania and western Africa 🤔

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Joackiie 🇬🇱 @joackiie.bsky.social · 25/08/2026

The past 24 hours brought widespread thundery rain across Switzerland (radar totals ↙️): most in Ascona/Ticino with 85mm, least in the Prättigau/eastern Grisons with <1mm. By month-end, another 10–100 mm are expected, highest in Ticino.

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Joackiie 🇬🇱 @joackiie.bsky.social · 24/08/2026

A thunderstorm cluster off West Africa may develop into the tropical Atlantic’s first hurricane in the coming days. The multi-model ensemble then takes it north well off the US East Coast, eventually becoming a deep low near Iceland – potentially triggering then high pressure over the Alps. :-)

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Joackiie 🇬🇱 @joackiie.bsky.social · 23/08/2026

After a mostly clear night, a "cool" summer morning in Switzerland, with light frost in the Engadine and upper Jura (Amburnex-Combe). Locally, e.g. Rothenthurm/SZ and Visp/VS, it was even the coldest morning of summer 2026! Low cloud over Ticino (blue in MTG Cloud Type) kept it milder.

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Joackiie 🇬🇱 @joackiie.bsky.social · 22/08/2026

The hot midsummer and dog days are over: Säntis (2,490 m), eastern Switzerland's iconic mountain, woke to a dusting of fresh snow and with -0.4°C its lowest temperature since 10 June. But quite normal for late August though: up to 32 cm/24h has fallen there before!

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Joackiie 🇬🇱 @joackiie.bsky.social · 21/08/2026

While the tropical Atlantic remains a ghost town despite MDR SSTs >26°C and the 10 Sep seasonal peak approaching, a strange NE Atlantic system is undergoing a rare "tropical transition", reaching ~992 hPa Sat. A fish storm at first, but Portugal may see heavy rain+storm-force gusts on Monday.

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Joackiie 🇬🇱 @joackiie.bsky.social · 20/08/2026

The last 24h brought almost continuous thunderstorms somewhere across tiny Switzerland, as shown by 24hours MTG LI data (source: Metmaps) ↙️ Huge rainfall contrasts: 150 mm in Bellinzona/Ticino, while the Swiss Plateau and northern Switzerland remained largely dry (radar totals) ↘️

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Joackiie 🇬🇱 @joackiie.bsky.social · 19/08/2026

Once again a very sunny summer day in the Alps, especially Switzerland, with hot 35°C in Geneva and Sion! First local thunderstorms will develop late this evening in the south and eastern Alps. DWD ICON-D2 RUC nowcast, 2.2 km resolution, initialised 15 UTC.

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Daan van den Broek @daanvandenbroek.com · 17/08/2026

📉 The Rhine’s discharge keeps falling: one week after reaching a record low, it has now dropped below 600 m³/s for the first time on record. 🌧️ Fortunately, the much needed rain is finally returning to the Rhine basin and the Alps, so discharge should rise again soon. 🧵 (1/3)

Graph showing the daily Rhine discharge at Lobith from June to December. In 2026 (red line), discharge fell to 569 cubic metres per second on 16 August, below the previous record of 620 in November 1947 (blue line).

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Joackiie 🇬🇱 @joackiie.bsky.social · 18/08/2026

Cold front from the northwest brought widespread thundery rain yesterday (24h totals by profiwetter.ch) finally ending Switzerland’s extreme heat. Yet summer rainfall so far ranges from just 40 mm in Basel to 350 mm on Säntis, with deficits of 15 (Visp/ Valais) to 400 mm (eastern Prealps) to normal

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Joackiie 🇬🇱 @joackiie.bsky.social · 16/08/2026

The Alps at noon on Sunday, as seen by Terra/MODIS. Active wildfires (marked by orange dots = thermal anomalies) in northern Piedmont are sending smoke into Ticino, while fires in Friuli (northeastern Italy) are blanketing southern Austria in smoke.

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Joackiie 🇬🇱 @joackiie.bsky.social · 16/08/2026

Western Europe recorded its warmest June–July period on record. I< n the first half of August 2026 this pattern has continued: JMA data show persistently much above-average temperatures and below-average precipitation across much of western Europe.

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Joackiie 🇬🇱 @joackiie.bsky.social · 14/08/2026

Morning MTG GeoColour satellite image: astonishingly clear skies over the eastern Alps in very dry air, while smog blankets northern Italy. Wildfire smoke is visible over western Germany and Croatia ↙️ — and even Etna is active!

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Joackiie 🇬🇱 @joackiie.bsky.social · 12/08/2026

With slightly drier air from the east, Switzerland is mostly cloudless and very sunny this afternoon, with only a few tiny cumulus clouds south of the Alps. The wildfire near Domodossola/Piedmont is still raging, with smoke spreading into the Valais via the Simplon Pass.

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Joackiie 🇬🇱 @joackiie.bsky.social · 11/08/2026

This very hot summer in the Alps can still produce new heat records! Today brought the summer/year’s highest temperatures in the Upper Engadine and Mesocco. There Grono reached 36.7°C↙️; exactly 23 years ago, the manual station (no recording, mercury thermometer) had 41.5°C, later adjusted to 40.5°C.

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