Day 19 of the Perdigao IOP. Today was another pleasant day, with clear skies and fairly cool temperatures. Winds were weaker today than yesterday. There was a small wildfire N of sounding site this morning, which created a smoke plume through the valley during the 12 UTC launch. The fire was extinguished by mid afternoon. 

Four sondes were launched today, at 00 UTC, 06 UTC, 12 UTC & 18 UTC, with no issues.