A low pressure system will bring heavy to excessive rainfall and high winds across Montana this afternoon. Heavy rainfall totals may lead to scattered flash flooding concerns. A line of showers and strong to severe thunderstorms will move into the mid Missouri Valley region this afternoon producing severe winds and isolated large hail with stronger storms. Read More >
Dendritic Layer (Omega * PW * RH) OPRH The product of vertical motion, precipitable water, and relative humidity in the dendritic growth layer. Values will be most negative (favorable for snow growth) where strong ascent coincides with saturation in the dendritic growth layer. |