The Development of Reversed Barrage Cloudiness in Italy - 19 September 2007 06 UTC
RGB 1.6+0.8+0.6
Geopotential height 300 hPa
Isotachs 300 hPa
Omega 700 hPa
Relative Humidity 500 hPa
Relative Humidity 850 hPa
Mean sea Level Pressure
RGB 1.6+0.8+0.6 shows the upper level clouds in cyan colours, whereas the low level sheets are seen in pinkish colours.
At 300 hPa height the wind is is throughout the episode southwesterly.
Isotahcs show a minor jet stream at 300 hPa level extending from Sardinia and Corsica over Italian peninsula east.
Some ascending motion can be see associated with the cloudiness east of Italy.
At 500 hPa the atmosphere is mostly dry within the area of interest.
At lower troposphere the relative humidity is relatively high within the area of interest.
A weak surface low is located in Italy. The surface flow obviously is from east at the lowest levels of the atmosphere within the area of interest.
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