Discover and read the best of Twitter Threads about #Freddy

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Le cyclone #Freddy, d'une longévité record de 38 jours, a traversé tout l'Océan Indien avant de frapper l'Afrique australe à deux reprises.

Le président du Malawi, qui recense plusieurs centaines de morts, se désole d'une "tragédie nationale".

1/5… Image
Arrivé au Mozambique, Freddy a fait demi-tour et regagné en puissance, "porté" par les eaux chaudes de l’océan.

Un tel mouvement, "peu courant mais pas inédit, s’explique par des changements assez radicaux de l’environnement météo, et notamment des courants atmosphériques".

2/5 Image
À moins de 50 km de Madagascar, #Freddy a fait un nouveau demi-tour, touchant une nouvelle fois le Mozambique puis le Malawi.

Il est d'une longévité record (38 jours), mais pas forcément record en se restreignant aux jours classés "tempête tropicale" a minima.

3/5 Image
Read 5 tweets
The high intensity ensemble model forecasts for #CycloneFreddy #Freddy have always indicated the possibility of it turning and exiting before landfall.

And now the HRWF cyclone model is indicating this also.
However a very large cyclone sitting off the coast can still produce very large quantities of rain.

But the catastrophic rainfalls indicated yesterday 300-500mms of rain deep inland may not now eventuate.
The storm has experienced startling intensification over the past few hours in line with the model.

View current Diagnostic imagery


Read 5 tweets
Freddy remains a massive storm taking up nearly the entire Mozambique Channel - outer bands are already over the African coast.

The latest forecast predictions contain a range of possibilities & the latest ensemble mean model forecast is very bad in terms of additional flooding……
The last two days of development. 7-8 March.
And 8-9 March. Freddy is strengthening rapidly on approach to the mainland - and remains embedded within and fueled by an AR coming in from the North East.
Read 13 tweets
Here's an earlier vioew from theis morning while the spinning up cyclone - now commencing its second pass across the Mozambique Channel started intensifying rapidly, very quickly developing a clear eye.
Here's a 24h animation over night and into this morning.
Read 9 tweets
#ExtremeWeather #Mozambique #Madagascar #Zimbabwe UPDATE THREAD

The Cyclone Freddy event which initiated a humanitarian emergency in South East Africa (exacerbating exisiting folldinghas now been underway for a fortnight and is ongoing. Freddy is expected to strengthen and……
The quoted tweet in the OP above covers the period February 21-27.

This thread provides an update series of 24 hour satellite animations from 27th Feb till March 5th. But the event is not yet over. The latest UNHCR emergency reponse……
So far 1.75 million people have been affected - and 163,000 were affected as of March 3rd - when this […[ report (the most recent) was issued.
Read 20 tweets
2. Landfall in Madagascar 21 Feb
3. #Freddy exits Madagascar and makes its way into the Mozambique Channel and begins to reform. It appears to be being supported in this by an atmosphericn river which may originate in South America. Surface flows of PWAT are in opposite direction.
Read 10 tweets

Freddy is located 256 km south-southwest of Antananarivo, Madagascar, and has moved westward at 26 km/h (14 knots) over the past 6 hours.

#Freddy #CycloneFreddy

Having made landfall on Tuesday night over the east coast of Madagascar, Freddy is forecast to track generally west southwestward as it is ripped apart by the mountainous eastern region of Madagascar.
FREDDY represents a significant flood risk for Madagascar as soils are already saturated in central parts of the island from the impact of Cyclone Cheneso, which stalled off the west coast of the island and brought torrential rains in late January
Read 11 tweets

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