The interconnections between global weather systems is becoming a trend of a fascinating voyage of metereological discovery that started in The #WestSahara in March, moved focus to #Ethiopia and #ArabianStorms in April and has now widened to include Europe and India.
Around lunch I did a wrap up thread about #EuropeanStorms activity caused by Round 1 of the #WestAfricaWaterPlume.
And to see what happened in Round 1 yesterday, this thread is the best place to start.
The events in Europe yesterday resulted in a fairly large #ArabianStorms event in the #MiddleEast this afternoon which was not forecast.

It started midway between a line of storms across Iran and a strengthening rain laden stream crossing Yemen.
Here's a closeup of the storm's early formation. Which to me looks delightfully whimsical.
Four hours later the #ArabianStorm complex covered an area around the size of Italy. In the top left of the image you can see what most likely helped it to grow so fast. Incoming moisture coming in hot from the north.
Here is another view of this, the storm Gulf storm is bottom right. The moisture is part of the right hand plume identified in yesterday's thread - which spun north towards southern Germany whilst making a sharp turn southwards - initially making landfall in Egypt.
Here's a view of this rapidly turning easterly arm of the #WestAfricaWaterPlume from last night.

Since then the #WestAfricaPlumeEvent has evolved considerably,
Here we see the picture from mid afternoon today. The #WestAfricanWaterPlume has become a multitude - with the strongest river in the far west. Many of the plumes are only becoming visible once they get close to the Mediterranean.
This animation shows the plumes in greater detail.
The plumes seem to operate in bursts, and the significant ones are those at the far right. This picture shows the scene as of 30 minutes ago.

The main feature is the big area of clear air in a roughly square box from the Adriatic Coast to Greece heading North East.
Compare the position of the storm in the attached tweet - the one over France [] from 24 hours ago, with where it is now. About to be pushed across the Baltic into #Sweden.

That storm is doing a consistent 100kmph. As is the main body of the plume.
The next three animations follow the progress of the main plume bulldozer, which is proceeding almost precisely as forecast for today.

Here we see 9am to 12pm.
This animation picks up from 12pm and takes us through to 3pm.
And this one to 5.15pm.
The leading edge of what I am calling the Polish Storm is now over the Baltic. And as its development and position was well forecast we can perhaps see where it is going...

This forecast has the storm near Moscow tomorrow night & an Atlantic storm in the UK at the same time.
This images are the CMC (left) and ECMWF (right) precipitable water forecasts for 6pm tonight. They are both very good.
And here are the two forecasts for 6pm tomorrow. Unfortunately the low systems being produced by these bursts of African water are fairly consistently bringing cold Arctic air South.
We shall see what happens tomorrow I guess :)

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More from @althecat

4 May
<< Baltic Faceoff >>

These two storms now look fairly evenly matched.

The storm on the left (over the UK) is powered by the North Atlantic, while the one on the right over Russia is powered by the #WestAfricanMonsoon

& bottom left over the Med. a spoiler is arriving.
I didn't see this earlier but the marked triangular bit in the top left of this image is the reason the UK Storm didn't manage to push the Russian Storm off the mat.

That's a jet of airborn water that has somehow managed to find its way both into & out of the Arctic. Image
The Nordic interloper is there at the beginning of the sequence before the sun sets.

These four images show the sequence of events. ImageImageImageImage
Read 5 tweets
4 May
I have been watching these two storms, one over the UK (on the left) and one over Russia (on the right) for the last 2.5 hours. They are both big storms.

In that time the smaller UK storm has moved 142.2 kms closer while the Russian one has moved 32.16 kms away. Image
What I am curious about is whether they might merge with each other, and if they do, what it will look like [,17.…]. They used to be quite a long way away from each other, and the forecasts said they would stay that way.
The much larger Russian one ought to be long gone by now. At least that's what all the computer model's said.
But it has barely moved in the last 36 hours, which is unusual for a storm. Back then it looked more like a whale. [,36.…] Image
Read 5 tweets
3 May
For me this was a very sad discussion. The first step towards democracy is to hold an election. Unfortunately to do so can be dangerous. But so is not taking that first step.
The path to reaching difficult agreements requires sacrifice. The path to reconciliation requires giving others the benefit of the doubt. And the path to peace requires renouncing violence.
And the path to democracy requires peaceful acceptance of the result of elections.

The outcome of Ethiopia's first election is unlikely to satisfy everyone, and probably won't satisfy a majority. Most elections don't. But it is the 1st step to take to become a democratic nation.
Read 4 tweets
3 May
Today's #ArabianStorms were mainly over the Arabian Gulf. #Qatar #Bahrain and the in the middle of the gulf. And the day also saw a storm begin before dawn.

Today's #Ethiopia and #MiddleEast forecasts follow:
The latest CMC and GFS North Africa 10-Day Rain forecasts.
Today two streams of monsoon energy appeared to come together over the south end to send a stream of atmospheric moisture to Oman and on to India.
Read 13 tweets
3 May
A Tale of Two Storms.

In pictures.

[Check out #WestAfricaWaterPlume & @althecat for the words....]
Read 40 tweets
3 May
A side by side comparison of the impact on Northern Europe of the...

April 30-ongoing #WestAfricaWaterPlume event (left)

...VS the...

April 17-19 #WestAfricaWaterPlume event (right).
The current plume event has a far larger, longer plume. The area affected by the resulting low pressure system is far larger - and vastly more populated.

So far I have found one news report:…

#Россия #Потоп #РоссияПотоп
Unfortunately its just a preview.
Read 4 tweets

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