BOZEMAN – A trough of Low-pressure is digging into the Pacific NW Monday afternoon producing a moist unstable SW flow aloft over western Montana. A line of snow has been impacting travel Monday morning into Monday afternoon along the Continental Divide.
![march8macdonaldpass.png](https://ewscripps.brightspotcdn.com/dims4/default/057a7a7/2147483647/strip/true/crop/1920x1080+0+0/resize/1280x720!/quality/90/?url=http%3A%2F%2Fewscripps-brightspot.s3.amazonaws.com%2F62%2Fc5%2F1e3cb5e74c35a18915cc051daf78%2Fmarch8macdonaldpass.png)
KBZK
Mountain passes in SW Montana could see more snow overnight into Tuesday morning so plan on wintry travel conditions.
The National Weather Service has a WINTER WEATHER ADVISORY up for most of SW Montana tonight through 11 am Tuesday.
Snow accumulations around 2”-5” are possible especially at pass level.
![marchadvisory.png](https://ewscripps.brightspotcdn.com/dims4/default/081fc91/2147483647/strip/true/crop/1920x1080+0+0/resize/1280x720!/quality/90/?url=http%3A%2F%2Fewscripps-brightspot.s3.amazonaws.com%2Fae%2F79%2Fabcd2715404b81100e5b96eb3354%2Fmarchadvisory.png)
KBZK
![march8snowcast.png](https://ewscripps.brightspotcdn.com/dims4/default/a6b2ab9/2147483647/strip/true/crop/1920x1080+0+0/resize/1280x720!/quality/90/?url=http%3A%2F%2Fewscripps-brightspot.s3.amazonaws.com%2Fa6%2F87%2Fb46173614d3f877dacfb6fb06326%2Fmarch8snowcast.png)
KBZK
Cooler air will also dig into Montana for the rest of the week and forecast temperatures will stay slightly cooler than normal through next weekend.