IMPRESSIVE STORMS LINKED TO A COLD FRONT IN RIO GRANDE DE SOL, BRAZIL!

DISCUSSION: As a fairly strong low-pressure system quickly passed through Central and Eastern South America only a few days ago, there was intense lift and warm-air advection occurring.  This combination of advection and lifting of warm/moist air led to a prolific rainfall event across Southern Brazil which dumped an average of 42 mm of rainfall across a large portion of the city of Porto Alegre and it persisted for several hours on the morning and afternoon of 15 May.  Though the weather has become more settled since then across this part of Brazil, much flooding is still subsiding due to the heavy rainfall which collected in particularly lower-lying areas.  Note the eye-grabbing lightning strike captured in the photo linked below which was associated with one of the stronger storms which moved through Porto Alegre! To see other interesting high-impact weather content from across Central and South America, be sure to click here!