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Ce 5 août 2025, Éléonore Boccara détaille la météo du jour sur BFM TV :
🌧️ Faible perturbation pluvieuse au nord (Poitou > Grand Est)
🌬️ Vent fort : Tramontane & Mistral jusqu'à 60 km/h
🔥 10 départements en vigilance incendie, dont un en risque très élevé
🌡️ Températures en baisse au nord, mais jusqu'à 36°C à Montpellier
💧Focus approfondi sur la sécheresse :
• Sécheresse météorologique (déficit de pluie)
• Sécheresse agricole (sols secs)
• Sécheresse hydrologique (nappes phréatiques dégradées)
📉 Pluviométrie en recul de 30 %, 44 départements en alerte, 19 en crise

Un bulletin météo complet, pédagogique et essentiel face aux enjeux climatiques actuels.

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TV
Transcription
00:00What does the sky look like this Tuesday morning, Eleanor?
00:03It will be pretty good overall.
00:06In any case, we are doing much better than our Scottish friends.
00:09who had to face the florist storm that we can still see circulating here on this satellite animation.
00:16So for this morning, we have a rainy disturbance but weakly active
00:20which will affect the north of the country.
00:22It is found mainly from Poitou to the northeast.
00:26It also leaves behind some very beautiful clearings.
00:28Some gusts of wind, a northwest wind present up to 50 km/h over the rest of the territory.
00:34It's pretty good, a little bit gray in the southwest but otherwise it's very sunny.
00:39Watch out, the Tramontana is waking up today with gusts of up to nearly 60 km/h.
00:44For this afternoon, we find the route of our disturbance,
00:48still weakly active which will shift towards the east.
00:51It is mainly found from the Jura to the Grand Est.
00:54Behind, the clearings are becoming more widespread.
00:57Still a few small gusts of wind, particularly towards the edge of the Channel but also inland.
01:01Still sunny but windy around the Mediterranean.
01:04The Tramontane mentioned above but also the Mistral up to 50 km per hour.
01:09This encourages us to be extremely vigilant around the Mediterranean.
01:12Ten departments on alert, including one at very high risk of fire.
01:16This is the water on the temperature side.
01:19They are rather decreasing.
01:21Today, a temporary drop in the northern half.
01:23But it will still be very hot in the south.
01:25At dawn, 12 degrees in Cherbourg.
01:2917 in Paris or Lyon.
01:3020 degrees on the Basque Country side.
01:3321 on the French Riviera.
01:35And this afternoon, we will feel this slight drop in the north of the country.
01:3924 degrees for the capital.
01:4230 degrees in Bordeaux.
01:43And then it will still be very hot in the southeast especially.
01:4635 degrees in Montélimar, in Perpignan.
01:49And it even goes up to 36 degrees near Montpellier.
01:52There was a heatwave.
01:55However, before, and Leonore, there was a lot of rain.
01:58But apparently, this was not enough to rehydrate the soil.
02:00So, rains are not the only factor at play.
02:04And they are not necessarily sufficient.
02:05It depends on whether the tablecloths are reactive.
02:08The rains will not necessarily be effective, especially in depth.
02:12There are three types of drought.
02:13That might be interesting to clarify.
02:15A meteorological drought.
02:16This is caused by the lack of rain.
02:18We have an agricultural drought.
02:20Lack of water in the soil, which in particular harms the development of vegetation and crops.
02:24And hydrological drought.
02:26Here, we are dealing with a problem of deep underground water tables.
02:30Well, we are affected by these types of droughts.
02:33See, the surface dryness, this one, with this map, is quite striking.
02:37Not only is it present around the Mediterranean,
02:40but also very intensely in the western regions.
02:44This is also where we had the fire alerts.
02:47and fire outbreaks in recent weeks.
02:49So, it's not a coincidence.
02:51If we go a little deeper, we go up to a meter deep.
02:55We can see that it is even more marked in certain areas.
02:59And we're going to go to the water tables this time.
03:03These groundwater tables are more or less permeable.
03:05And there, we make an observation which is quite worrying, since the situation is deteriorating.
03:13Not only do we have this snapshot, this state of affairs that we can see on this map,
03:17but we have to see the evolution.
03:19And evolution is not going in the right direction.
03:21We can quickly look at the national hydrological situation bulletin,
03:25which is published by BRGM.
03:27It's the National Geological Survey.
03:29And so there, if we take a little look at it, he makes a little look at it every month.
03:33If we look at the date of July 15, we see rainfall
03:36which is on average 30% in deficit across the country.
03:41The situation of the water tables is confirmed as degraded and degrading further.
03:46And then, from the point of view of the departments concerned,
03:48we had 44 departments on alert or on heightened alert for drought,
03:52including 19 in a state of crisis.
03:54Yes, more than ever.
03:55So, caution, obviously, with these restrictions as well.
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