Severe Weather Europe
*Stratosphere warming watch* A powerful new warming phase is building for early December. Stratospheric temperatures likely to raise over 30°C above normal, affecting the already weakened vortex!
The polar vortex is slowly but steadily losing its power. While the pressure waves are “attacking” the polar vortex, a new temperature wave is building for early December, that should prolong the weakening of the vortex, and perhaps push it even further beyond the point of return for a while, later in December. In the […]
The post *Stratosphere warming watch* A powerful new warming phase is building for early December. Stratospheric temperatures likely to raise over 30°C above normal, affecting the already weakened vortex! appeared first on Severe Weather Europe.
Pattern over Europe this weekend indicates a large upper trough / low over the Mediterranean, central and WSW Europe. With a powerful upper-ridge dominating E Europe and W Russia. A strong southerly winds / jet stream is placed in between these large-scale systems. Marginal to locally moderate instability should be available across the warm sector […]
The post Dangerous severe weather threat spreads into NW Balkans and NE Italy this afternoon, Nov 17h appeared first on Severe Weather Europe.
*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!
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.
A new “bomb” tropical system in W Pacific – typhoon #FENGSHEN went through a rapid intensification into a Category 3 today
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 […]
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.
Surface front brings severe storms with intense rainfall and flash floods into the N Adriatic region + lots of snow in the Alps, Nov 15th
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 […]
*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!
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.
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
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 […]
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.
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.
*Volcano watch* An intense earthquake swarm is ongoing at the Askja volcano, Iceland! If it would erupt tomorrow, ash would spread south, over 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.
An impressive medicane #DETLEF in the western Mediterranean, making landfall in northern Algeria, Nov 11th
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 […]
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.
BRUTAL *Arctic outbreak* will spread across a large part of United States through Monday and Tuesday, Nov 11-12th
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 […]
Stratospheric warming watch UPDATE: Polar vortex will start to weaken early next week, multiple warming phases to follow!
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 […]
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29. veebruari ekstreemumid 2010-2020