Toured into Southern GNP to look for similar instabilities found in this area on Sunday.
Upper Shields Basin to 6300'.
Moderate winds and light precipitation began around 2 pm. The rain-snow line was approx. 6000' with a rain/ snow mixture observed at 5600' and rain below.
Advisory Hotline: 406.257.8402
Call or text an observation: 406.66AVYOB