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DIRECT STORM: storms and stormy gusts over the north

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Through Gilles MATRICON, meteorologist
Posted on 08/02/20, updated on 11/02/20 at 06:32-
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At 6:23 am, the wind continues to blow in storm on the side of Corsica. Tonight the gusts in Haute-Corse reached 206 km / h at Cagnano (2B). The wind has decreased in intensity but is still blowing at 184 km / h in this locality and 121 km / h in Bastia. The Alpes-Maritimes are not to be outdone with gusts reaching 117km / h on the side of Cossolles (06). In the north, rail traffic remains disrupted on the Hauts-de-France side and as far as Lorraine because of the trees fallen on the tracks and the numerous damage generated by the Ciara storm during the day on Monday. The wind reaches 112km / h from the side of Opale to Cap Gris-Nez.

At 9:30 p.m., strong gusts of wind hit Île-De-Fance in the last hour. If winds at 80 km / h have been detected, it cannot be excluded from the analysis of radar images which confirms the importance of the grains, gusts at more than 100 km / h locally and even in the capital. Under the grains, other powerful gusts hit the region of Cambrai (59), that of Saint-Dizier (52) and Haut-Rhin (68) but also Lorraine with 105 km / h measured in Nancy.

15,000 households are still without electricity.

Over the next few hours, it is over Hauts-De-France, Lorraine and Bas-Rhin that violent gusts will occur with values ​​estimated between 100 and 120 km / h.

8:30 p.m., the storm front which crosses the north generates powerful gusts at 95 km / h and locally more. They have been recorded north of the Seine, mainly in the Somme but also in the Grand Est and particularly in Lorraine. This violent degradation is headed for the Bas-Rhin.

The strong winds continue to affect the north of the country with still peaks at over 100 km / h over northern Brittany (130 km / h at Brignogan) and 118 km / h at Cape Gris-Nez.

To 19h, and in a very unstable air mass generating some thunderstorms north of the Seine, convective gusts of more than 100 km / h are observed north of the Loire. This is the case in the lands in Caen in particular with 114 km / h, in Chalons-en-Champagne with 102 km / h. This situation of very strong winds affects the northern quarter of the hexagon, with frequently winds at more than 80 km / h and locally more than 100 km / h outside coastal areas. The wind is currently blowing at 81 km / h over Paris. The stormy gusts are moving on the Great East where we reach in the next two hours winds locally up to 120 km / h.

Note also, a tornado that formed in the Somme at the end of the afternoon, north of Amiens, when a heavy downpour passed. The instability of the air mass allowed this kind of phenomenon.

On the coasts, winds of 127 km / h are observed on the island of Groix (56) and 124 km / h at Cape Gris-Nez (62) on the Opal Coast. Offshore, like yesterday, the waves reach 6 m with maximum heights sometimes up to 12m.

At 18 o’clock, gusts of 90 to 104 km / h were observed under grains in Ile de France. This is the case in Seine-et-Marne with 104 km / h in Chevru, but also locally in the Yvelines and the Val d’Oise with winds around 95 km / h. The strongest is expected within an hour and around 11pm with winds close to 110 km / h very locally. From Finistère to Hauts-De-France, the situation has changed little overall for an hour In Corsica, the storm continues to strongly affect the north of the island.

At 17 o’clock, still the storm in Haute-Corse with winds between the Corsica and Sagro caps at 200 km / h for two hours. North of the Loire, the winds have strengthened between the south of Cotentin (111 km / h at Gouville) and Hauts-De-France where frequent gusts between 80 and 85 km / h are observed in the margins of 120 to 135 km / h blowing on the Opal Coast.

In Île de France, the wind now reaches nearly 90 km / h locally south of the Yvelines and 77 km / h in the capital.

At 4.45 p.m., in Corsica, with the strong wind, a new fire broke out in Pietracorbara. With the foehn effect, temperatures also climbed suddenly in Bastia, breaking the record for February with 24.6 ° C.

At 16 o’clock, 171 km / h at Cape Corse after 201 km / h at 4 p.m., 199 km / h at Cape Sagro (2B) …. the 1990 record with 208.8 km / h is approaching for the latter.

The violent stormy winds continue to spread from Finistère to Cotentin and then towards the Opal Coast and Hauts-De-France, where the gusts have increased significantly over the past hour. There are thus 116 at Cape Gris-Nez against 96 km / h at 3 p.m., and 80 km / h at Bernaville (80) against 54 km / h at 3 p.m. This reinforcement is gradually spreading over the Paris basin.

The Isle of France will be affected from 6 p.m. with winds between 80 and 90 km / h and very locally 100 km / h. This deterioration will then be clearly reinforced towards the Grand Est in the evening before gusts between 80 and 120 km / h until the start of the night.

At 15h, the winds overall did not change much with the storm over Haute-Corse with maximum gusts at Cape Corse at 201 km / h. In contrast to Brittany and the Channel coasts, stormy winds are starting to enter more inland. We thus noted 109 km / h on the north Finistère at Landivisiau (29, a stronger wind than yesterday!

At 2:20 p.m. the storm hits Haute-Corse, the reliefs of the Alpes Maritimes while, on the other hand, from Finistère to Cotentin a new stormy episode a little less intense than yesterday is taking place. In Haute-Corse, 162 km / h are recorded at Cape Corse, 148 km / h at Cape Sagro (2B), 150 km / h at Île Rousse (2B) and up to 140 km / h on the reliefs at almost 2000 m.

In the Alpes-Maritimes, the storm concerns the interior of the department and the reliefs with an average of 90 to 140 km / h, but up to 165 km / h to the north at Péone at nearly 1800 m.

Between Finistère and north Cotentin, the winds have become stormy for an hour with notably 163 km / h at the lighthouse of Gatteville (50), and between 90 and 110 km / h elsewhere.

This reinforcement will continue on Brittany and Cotentin over the next few hours, while extending to all the coasts of the Manche up to Hauts-De-France.

At 12.42 p.m., the sea is dismantled on the coasts of Seine-Maritime while the open sea is reached!

At 12, the wind continues to drop a notch in most regions. The strongest winds are only found in the far northeast, in Alsace-Lorraine, with winds exceeding 80 to 90 km / h. Strong winds are always shifting further east in Germany. On the other hand, the wind strengthens very clearly in Corsica where there is 175 km / h at Cap Corse. It is also the storm in the Alps at altitude.

In the northern half, the lull takes place before a strengthening of the wind which will resume on the Channel coasts at the end of the day.

At the end of the morning, there were two injured in the Haut-Rhin department. In the Moselle, several schools are closed.

In Calvados, a sixty years old died after falling from his roof. In the same department, the prefecture has announced the closure of the Tancarville bridge and the Normandy bridge in both directions of traffic for all types of vehicle as well as pedestrians.

At 10:25 a.m., the wind weakens more. There are now 70 to 90 km / h in gusts inland. Wind gusts above 100 km / h are very localized, in particular on the Opal Coast, the Alsatian reliefs and the exposed coastlines of the English Channel.

At 9:22 a.m., the lull is taking shape more and more. In 2 to 4 hours, the wind went from 112 to 81 km / h in Nancy (54), and from 121 to 94 km / h in Volmunster (57). Towards the coasts, the winds are still strong with locally more than 110 km / h to the north. Damage is observed on many roads, which sometimes makes traffic difficult.

At 8:20 a.m., the wind continues to weaken. We are slowly emerging from the critical period. The winds are still strong, with 106 km / h at Volmunster (57) and 132 km / h at the Ballon de Servance (70).

Towards the northwest coasts, gusts are around 100 to 110 km / h.

At 8 o’clock according to our latest information, a person died in Drancy, in Seine-Saint-Denis, yesterday afternoon. This forty-something man fell violently from his scooter on the head, probably knocked down by a violent gust. The emergency services could only note the death.

At 7:30 a.m., 130,000 homes are deprived of electricity in Brittany, Normandy, Hauts-de-France, Grand Est, Ile-de-France and Center according to Enedis. Public transport in Île-de-France is disrupted.

At 7.14am, the wind is weakening but remains strong on the northwest coasts with another 90 to 110 km / h.

On the Grand Est, the wind values ​​are similar with in particular 113 km / h at Rodalbe (57), and up to 135 km / h at Delouze-Rosières (55). At altitude, the winds are always a little more violent with 156 km / h at the Ballon de Servance (70).

At 6:40 am, the Ciara storm always brings strong gusts of wind over the northern half of France. There are 126 km / h on the coasts of the Channel at Barneville-Carteret. In Hauts-de-France, a gust was measured at 120 km / h at Cape Gris-Nez.

It is in the northeast that we find the strongest gusts, but at an altitude of 1000 meters, with values ​​between 120 and 140 km / h, including a gust of 177 km / h at Markstein. In Strasbourg, a gust of wind was measured at 121 km / h, constituting a new monthly record at the station whose records date back to 1981.

Between 6 a.m. and 9 a.m., a gradual weakening of the wind is expected. The blower effect, of a strong and continuous mean wind, should fade. However, a shower regime will be implemented. It will cause violent gusts in certain showers.

The wind is not the only threat. Marine submersions could occur on the Opal Coast at high tide around noon.

On the transport side, the situation also remains disturbed. TER traffic is stopped until further notice in Hauts-de-France. In Île-de-France, weather conditions are already disrupting TER traffic. Other regional trains in Alsace-Lorraine have been eliminated.

Flight disruption can also be expected. Beauvais airport has suspended flights until 7 am this morning. Elsewhere, expect delays or even cancellations, notably at Paris-Charles de Gaulle, Paris-Orly, Caen, Lille and Brest. For maritime transport, ferries between Calais and Dover remain at the quay.

Summary of the follow-up of the storm Ciara Sunday

At 9.45 p.m., the grain lines are multiplying in the north and east of France, from Normandy to the Loire Valley to the Grand Est via the Paris Basin, sign of a very strong instability of the atmosphere linked to the sinking cooler air from the British Isles coming into contact with very gentle air coming up from the Mediterranean. These grain lines are all the more powerful as they occur under the Jet Stream which circulates at 400 km / h at an altitude of 9000 meters.

These grain lines are therefore accompanied by powerful gusts of wind since peaks have been observed at 94 km / h in Orléans (45), 95 km / h in Nancy (54), 97 km / h in Metz (57) , 98 km / h in Châteauroux (36) and 101 km / h in Châlons-en-Champagne (51).

In the coming hours, all these regions will remain in contact with this very high instability and these violent and even stormy winds with gusts between 100 and 120 km / h inland, up to 140, even 150 km / h on the headlands. and exposed coasts of the edges of the Channel as well as on the Vosges massif.

At 8:30 p.m. the Ciara storm spreads over the Great East with in particular on the Vosgean relief gusts of 138 km / h at the crest of Markstein at nearly 1200 m. If in the plains, the gusts reach 75 to 95 km / h most often, be careful because the storm will intensify in the coming hours. In the direction of the Paris basin then towards Normandy very violent winds persist between 80 and 100 km / h. It is on the Opal Coast that we observe the most significant strengthening during the last hour, with now 139 km / h at Cape Gris-Nez and 128 km / h on Boulogne-sur-Mer. Along the Channel coast the storm is still raging with gusts between 90 and 110 km / h but especially 115 to 151 km / h (lighthouse of Gatteville) on the north Cotentin.

The storm made it very difficult for planes to land in crosswinds on the runways of certain airports in northern France and northern Europe, and sometimes forced them to divert.

At sea, the waves stabilize around 6m in the Iroise Sea, with maximum heights between 8 and 12m

At 20 o ‘clock, Northern Europe is also strongly affected.

Storm Ciara has already hit northern Europe hard, especially Scotland.

Already on Saturday, the winds were blowing in storm over the Scottish reliefs of the Cairngorms with gusts at 190 km / h in the evening and 110 km / h in the plain. With Ciara this Sunday, the stage of the strong storm was reached. The strongest gusts, which started to hit the west this morning with 110 km / h on the coasts and 170 km / h on the reliefs, reached this afternoon more than 200 km / h on the Cairngorms. After the passage of the cold front of the disturbance associated with this storm, the current period is “lulling” with a clear drop in winds. The storm is also easing over the Netherlands, where winds of over 140 km / h have been recorded on the coast and even 190 km / h at sea on an oil platform. Denmark also experienced stormy winds between 110 and 140 km / h on the west coast. Storm is now heading towards the Baltic Sea, Poland and central Germany

To 19h, the storm began to hit Lorraine with frequent gusts at over 90 km / h but above all 121 km / h observed at Mouzay in the Meuse (55). Apart from a new exceptional value of winds at 165 km / h at the lighthouse at Gatteville (50), the wind over the other departments of the northern half continues to blow in storm with for the most affected gusts between 90 and 110 km / h .

Lorraine will be one of the most affected regions from 8 p.m. Sunday to 4 a.m. Monday. The storm will generalize with winds between 100 and 120 km / h reaching 140 km / h near the Luxembourg border.

At 18 o’clock, the strongest winds are observed from Hauts-De-France to Ile-de-France as well as in the department of Cotentin. We just recorded 120 km / h on Cambrai (59), between 85 and 105 km / h on the Ile-de-France and still 100 to 131 km / h on the north coast of Cotentin.

In the next hour it will be in the Manche, the north of Hauts-De-France and the Center region of Champagne-Ardenne that the winds will be the most violent between 80 and 110 km / h with locally 120 km / h.

At 5:25 p.m., first damage in Paris in the Buttes-Chaumont park. Trees have also fallen in the 14th arrondissement. Falling trees are also observed in many departments affected by the storm

At 17 o’clock, little significant change overall except for the strengthening of the winds over the Valenciennois and the Orne department with gusts between 100 and 110 km / h.

Overall, the strongest and regular winds still affect the northern quarter of France with gusts between 80 and 110 km / h from Cotentin to Lorraine. On the Channel coasts, winds reach 100 to 138 km / h on the north coast of the Cotentin and 100 to 116 km / h on the Opal coast.

This situation will not change too much until 7 p.m., except on Calvados, Seine-Maritime and Pas-De-Calais. It is around 8 p.m. that Ile-De-France will be more affected, but especially the Vosges and the neighboring departments.

At 4.45 p.m. consequences of the Ciara storm in Europe and France: flights are canceled to or from Brussels and Frankfurt. Due to the very strong sea and wind conditions, the ferry traffic is interrupted between Calais and Dover.

At 16, the winds strengthened from Calvados to Hauts-de-France with gusts between 90 and 130 km / h. We observe in particular on the coasts of the Channel 129 km / h at Cape Gris-Nez (62), 111 km / h at Boulogne-sur-Mer (62), 118 km / h at Fécamp (76), 117 km / h in Port-en-Bessin (14) and between 100 and 131 km / h going up towards the north coast of Cotentin. Inland, the winds are strongest in Hauts-De-France with 109 km / h in Cambrai (59), 105 km / h in Méaulte (80) and 103 km / h in Lille.

In the next two hours, it is mainly on the Opal Coast and the west of the Ile de France in Hauts-de-France and Ardennes that the winds will strengthen a little to reach on average 80 to 115 km / h.

At sea, the waves reach almost 7m in the Iroise Sea with maximum heights sometimes up to 13m.

15 hours, there is little change compared to 14 hours with winds that continue to blow in a storm at 137 km / h at Gatteville-le-Phare (50), 122 km / h at Cape Gris Nez (62), 106 km / h at Bernières (14) and 103 km / h at Fécamp (76) and Brignogan (29).

In the interior of Brittany and the Pays-de-la-Loire region in the Loire Valley, going up towards the Paris basin, the Ardennes and Champagne-Ardenne to the north of Lorraine, gusts frequently reach 70 to 80 km / h. In the Paris basin, the wind intensified with 95 km / h in Paris, 94 km / h in Roissy (95), 91 km / h in Orly (91) and 90 km / h in Le Bourget (95).

At 14 hours, a gust reached 161 km / h at Gatteville-le-Phare (50). Other gusts reached 116 km / h in Calais (59) and 104 km / h in Brignogan (29) for the coasts. Inland, gusts reach 95 km / h at Rostrenen (22), 102 km / h at Flers (61) and 100 km / h at Rouvroy (80).

At 1 pm, a gust at 151 km / h was noted at Gatteville-le-Phare (50). Generally, the winds are strong near the English Channel. They blow strongly from Brittany to Hauts-de-France via the Paris basin. Inland, gusts reach 94 km / h in Vexin at Wy-Dit (95), 94 km / h at Givet in the Ardennes and 80 km / h on average between Lille, Beauvais, Rouen, Evreux, Chartres and 70 km / h from Nantes to Orleans going up towards Sens and Auxerre in Burgundy.

These winds will continue to strengthen on a strip from Rennes to Nantes in the direction of Champagne, Lorraine and Bourogne in the coming hours.

At 12 o’clock, CIARA storm blows violently near the Channel coast with gusts at 145 km / h measured at Gatteville-le-Phare (50), 120 km / h at Cape Gris Nez (62) and 113 km / h at the island from Batz (29). Since 10 o’clock, the winds have therefore considerably strengthened along the coasts. In the interior, gusts now reach 77 km / h in Paris (75), 80 km / h in Rouen (76), 90 km / h in Arras (62), 92 km / h in Caen (14) , 102 km / h in Flers (61), 104 km / h in Rostrenen (29).

In the next few hours, the wind will continue to blow violently over the regions north of the Loire and gusts at 80-90 km / h will become widespread. Near the coast, the winds will continue to frequently reach 110 km / h with peaks at 140 km / h possible on the exposed headlands and coasts.

At 10 o’clock, the Ciara storm continues to increase in strength with gusts at 120 km / h at Cape Gris Nez (62) and Gattefleur (50), 104 km / h at Boulogne-sur-mer (62) and at Le Havre (76).

In L

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