Severe Weather Europe

Iceland is on a roll! While Askja volcano still continues its own earthquake swarm, a strong burst of earthquakes occurred on the Reykjanes Ridge, just of the SW coast of Iceland. Iceland already has a lot of activity, especially at Askja volcano, where more than 1300 earthquakes occurred in just over a week. Today, on […]

The post *Earthquake watch* An intense earthquake swarm occurred at Reykjanes Ridge, Iceland! Over 200 earthquakes in just 9 hours. An eruption next week would send ash towards Europe! appeared first on Severe Weather Europe.

We have another small but very intense tropical system that went through a rapid intensification in very short period of time – borderline strength to Super typhoon FENGSHEN. While it was still a Tropical Storm yesterday, Nov 12th 12 UTC, with 65 mph sustained winds, Fengshen rapidly intensified into an intense typhoon within the last […]

The post A new “bomb” tropical system in W Pacific – typhoon #FENGSHEN went through a rapid intensification into a Category 3 today appeared first on Severe Weather Europe.

As discussed earlier this week, current pattern supports a powerful blocking ridge with an intense ‘heatwave’ developed over eastern Europe, resulting in usually very warm afternoon temperatures across E Balkans and E Europe. This pattern will expand into the weekend and early next week, supporting additional warm days over the aforementioned region. 500 mbar chart […]

The post Unusually warm weather continues across eastern Europe and western Russia until early next week appeared first on Severe Weather Europe.

A frontal system, associated with the large upper trough / low over WSW Europe continues east across the N Mediterranean region on Friday, Nov 15th and strongly enhances the severe threat for dangerous storms. Excessive and intense convective rainfall is expected along the front, as severe storms seem possible over the N Adriatic region. Strong […]

The post Surface front brings severe storms with intense rainfall and flash floods into the N Adriatic region + lots of snow in the Alps, Nov 15th appeared first on Severe Weather Europe.

The weakening of the stratospheric polar vortex is underway. The polar stratospheric jet stream is slowly losing its momentum, as monthly ECMWF forecasts start to hint at a possible Sudden Stratospheric Warming event by the end of the year. In the past few days, the polar vortex reached 40-year record strength for this time of […]

The post *Polar vortex UPDATE* The weakening of the polar vortex and the stratospheric jet stream has begun! Polar vortex collapse looks more and more likely by the end of the year! appeared first on Severe Weather Europe.

Yet another very deep upper-level trough / cold-core low has developed over the WSW Europe. An associated large surface cyclone and the frontal system will bring severe storms with an excessive rainfall threat (and snowfall in the Alps) through the next 24 hours. A lot of rain and locally snow is also expected across northern […]

The post A dangerous cold front pushes across S France and W Alps today and tonight, enhancing flooding threat and bring a lot of snow in the mountains appeared first on Severe Weather Europe.

Full moon, an area of low air pressure and high winds, are never a good combination for coastal areas. The city of Venice, experienced that first hand, on November 12th. Very strong tide, combined with strong storm surge, caused devastating flooding, the worst in the past 50 years!  November 12th will forever be remembered in […]

The post Devastating flooding scenes are coming from Venice, Italy! The city experiences the highest tide and flooding in the past 50 years! A state of emergency is declared, as heavy rain and winds continue. appeared first on Severe Weather Europe.

Not so long ago, we wrote about the elevated activity at certain Volcanoes in Iceland. In the past few days, an earthquake swarm began at the Askja volcano. Over 600 earthquakes have been recorded at the Askja volcano, in less than a week! ASKJA Askja is a caldera volcano, situated in the eastern volcanic belt […]

The post *Volcano watch* An intense earthquake swarm is ongoing at the Askja volcano, Iceland! If it would erupt tomorrow, ash would spread south, over Europe! appeared first on Severe Weather Europe.

As expected in our mesoscale discussions a shallow warm-core cyclone / #medicane has formed in the western Mediterranean today, Nov 11th. The development of the medicane was probably possible by a deep upper-level trough filled with cold air masses aloft as almost around -25 °C was present at 500 mbar level, advecting over relatively mild […]

The post An impressive medicane #DETLEF in the western Mediterranean, making landfall in northern Algeria, Nov 11th appeared first on Severe Weather Europe.

A dynamic weather pattern continues this week, with a deep long-wave upper-level trough over the west-southwest and central Europe while to the east, an extensive upper ridge develops. This pattern brings a lot of rain (and snow) into the Alpine region, while it results in an extreme temperature anomaly across eastern Europe. Wednesday, Nov 13th […]

The post A powerful blocking ridge with an intense ‘heatwave’ develops over eastern Europe this week appeared first on Severe Weather Europe.

While Europe is having unusually warm autumn, as a dynamic pattern is established, the other side of the Atlantic will again get into an extreme Arctic cold blast tonight through Tuesday. The most intense outbreak of Arctic cold air mass of the season is expected to push across a large part of US and bring […]

The post BRUTAL *Arctic outbreak* will spread across a large part of United States through Monday and Tuesday, Nov 11-12th appeared first on Severe Weather Europe.

The stratospheric polar vortex is reaching its peak strength early next week. It will be the strongest mid-November vortex in the past 40-years. But that power will soon vanish, as consecutive warming/pressure phases will start to attack the polar vortex. WHAT IS THE POLAR VORTEX, AND WHY IS IT IMPORTANT? As we wrote in our previous […]

The post Stratospheric warming watch UPDATE: Polar vortex will start to weaken early next week, multiple warming phases to follow! appeared first on Severe Weather Europe.

Autumn is usually very active over the North Atlantic where cold Arctic outbreak push over the still warm seas and result in explosive cyclogenesis and violent windstorms. Yet another bombogenesis* cyclone will develop over the Labrador Sea tomorrow, Saturday, Nov 9th and turn east towards the extreme southern tip of Greenland on Sunday while rapidly […]

The post Another very intense cyclone / bombogenesis will develop over the Labrador Sea tomorrow and move towards south Greenland on Sunday appeared first on Severe Weather Europe.

The progressive pattern across Europe will also bring a deep trough towards the SSW Europe early next week, with a deep long-wave trough pushing a deep core into the SW Mediterranean. Some models are hinting a development of a deep cyclone with the potential of the warm-core system in the western Mediterranean on Monday and […]

A tropical cyclone Matmo has been intensifying overnight and is stronger than expected yesterday. It is now a Category 2 cyclone, packing maximum sustained winds of 85 knots / 100 mph / 160 km/h with a central pressure around 970 mbar. Matmo continues moving north across the Bay of Bengal and becoming a significantly dangerous […]

An impressive satellite presentation has been observed over the far NNW Atlantic since yesterday as a very large deep cyclone with a pronounced frontal system formed. While central pressure is not extremely deep, the structure of the surface cyclone is quite impressive. The center of the cyclone was right over the Labrador Sea yesterday afternoon […]

A dangerous Category 1 cyclone Matmo is moving across the Bay of Bengal this week, while gradually strengthening on its way north. Matmo is packing winds of 65 knots / 75 mph / 120 km/h with a central pressure of around 985 mbar. Matmo has a long life as it formed in the South China […]

October 2019 was quite a wild ride as far as Arctic sea-ice goes. It started as the 3rd lowest on record, and it finished in monthly average as record lowest October on record! Currently we are seeing fast expansion, as over 2.5 million km² of fresh sea ice has formed in the past two weeks! […]

What 2019 tropical season is delivering is beyond impressive! An already extremely intense typhoon HALONG has continued its rapid intensification for additional 6 hours today and pushed the maximum sustained winds towards 190 mph, surpassing the devastating hurricane Dorian. Halong has probably peaked its strength today. As the sea surface temperatures remain favorable at 29 […]

We often hear the term “polar vortex” as we head closer to winter. But this season, we will talk about it earlier than expected. We recommend you read our tutorial article, on what is the polar vortex and why is it so significant for our weather? WHAT IS THE POLAR VORTEX, AND WHY IS IT IMPORTANT? […]