Live weather radar of #ArabianStorms across The Arabian Peninsula. /2
Inside the Grand Mosque in Makkah Muslim pilgrims and the @HolyKaaba. /3
A growing thunderstorm is now situated directly over the holy city of Makkah. /4
As we approach the full heat of the day, today’s #ArabianStorms are developing rapidly across the MIddle East.
Note: The storms in Iran, the Horn of Africa, Yemen and Oman are also delivering #DesertRain but as there is no weather radar they do not show up in blue.
Here is eyewitness footage from inside the Masjid al-Haram Mosque. /6
And another eyewitness video, this time from @saleh_alazzaz, whose wonderful twitter feed includes a lot of very beautiful footage of nature in Saudi Arabia, with a slight emphasis on rain and watercourses.
A high resolution taken today by the NASA Modis satellite of the #NileBasin and the #MiddleEast is below.
The day started with storms in the East of the #HornOfAfrica#Yemen and the #KSA and got very busy over the day.
28 April Rain forecasts follow:
This first animation shows the beginning of a plume of water coming across the Sahara from the Atlantic. Forecasts indicate water from this plume will arrive in the #MiddleEast and #HoA in 10 days time.
This animation shows the West African Monsoon and the plume of précipitable water making its away across over the Sahara over the coming week.
Here you see the beginning of this event. It is much larger than earlier iterations of the same phenomena. These streams of air-born water are roughly 4000 kms long.
This tweet and the next three contain 10-day forecasts of the trajectory of this hydrological atmospheric phenomena. They forecast precipitable water, the quantity of water which is held in the atmosphere measured in inches.
An image of thunderstorm activity in the Ethiopian #Abbay#BlueNile basin this afternoon, also showing significant rains South #Yemen and over most of #Somalia.
Todays, 27th April, accumulated rain forecasts for the #MiddleEast & #HornOfAfrica follow in the thread below.
#ArabianStorms activity was boosted today by moisture flowing from the #Ethiopian monsoon rains in the Ethiopian Highlands, the watershed of the #Abbay#BlueNile catchment.
Below you see a 10-day GFS forecast of accumulated rain over North Africa.
This animation shows the flows of moisture from this morning across the Red Sea. A process which is called the "Southern Gate" by Saudi weather entusiasts. #ArabianStorms#Abbay#BlueNile#GERD