According to the news, there were flash floods in Iran's southern province of Fars on 25 March, following devastating floods in the north.
On March 25-26, the observation of FY-2H showed that the weather system with strong precipitation was a large-scale frontal cyclone cloud system (Fig. 1), and there was a mesoscale convective cloud on the front surface. This weather system moved over Iran from the southwest to the northeast, causing large-scale heavy rainfall in the Fars and other places (Fig. 2)
Fig. 1 FY-2H visible image (09:00 UTC, 25 Mar. 2019)
Fig.2 FY-2H IR image (09:00 and 22:00 UTC, 25 Mar. 2019)
In comparison, FY-3D on March 27 and March 19 (Fig. 3) showed that in the southwestern Iran, the range of water body of the Lake Tashk and Bakhtaigan Lake has increased. It is estimated that the impact of floods in the above areas is about 350 square kilometers, an increase of about 36%(Fig. 4).
Fig.3 The comparison image from FY-3D MERSI (left is 27 Mar 2019, right is 19 Mar 2019)
Fig.4 Flood monitoring analysis image