Update 8.15 pm

The isobars seen from this Thai map show more spacing, hence winds are slowing down. A trough is running across A.P. and Southern Mah.

Mumbai saw maximum density of the dust cloud in the afternoon, and then it was gradually thinning out. Latest position ( at 7.30 pm IST) shows NW winds blowing and visibility at visibility again down to 1000 mts.

A suspect dust cloud is forming in N.Africa (Egypt). Will be observing this too.

Mumbai forecast for week tonite.

Update 3.30 pm IST:

Dust and Sand Concentrated in West Rajasthan and adjoining Southern Interior Sindh (Pakistan).

Wind Strength diminishes in NW India. Dust/Sand likely to become sparse within 12 hrs. Jaisalmer sees a humidity of 4% today afternoon.

Thinning of dust around Mumbai from evening today. Visibility lowest at 900 mtrs at 2.30 pm improves to 1300 mtrs by 4 pm. Humidity at 21%.

Fall in night temperatures compared to last nights minimum by 2/3c. 

Detailed Mumbai forecast tonite (10 pm). Expect variation by weekend !

Had a detailed discussion with Akshay (METD) and he has  superbly compiled and animated the Image. The trough line expected and mentioned in Vagaries' Weekly Forecast is also seen forming.

Sand Plumes take a perpendicular direction along N.Mah. Coast as winds change to North Direction.Though scattering, Mumbai will see haze and dust covering sky by afternoon. Visibility expected to drop to 800 mts. And hazy sun (75%).

SHAN FASTIAN SENDS THIS WONDERFUL PHOTO FROM ISLAMABAD,PAKISTAN . THE PHOTO WAS TAKEN AT 04PM LT,20TH MARCH 2012. BORROWED FROM METD