465 FXUS65 KBYZ 292036 AFDBYZ Area Forecast Discussion National Weather Service Billings MT 136 PM MST Tue Dec 29 2020 .DISCUSSION... Tonight through Wednesday Night... Heights will continue to to rise into the day tomorrow. With this, expecting the gap flow winds to be increasing tonight. The strongest winds are not expected until tomorrow morning, but winds around Livingston will start to steadily increase tonight with gusts 30 to 40 mph. Given the strength of the pressure gradient and the consistency in the models, have issued a Wind Advisory for the the Livingston Area and Beartooth Foothills from 6 AM tomorrow through 6 AM Thursday. Winds will start to decrease Thursday as the ridging starts to break down as another weak, shortwave trough moves into to the Northern Rockies. For the most part this wave will not produce much of a weather change, except where some light snowfall is possible tomorrow night into Thursday morning. Reimer Thursday through Monday... Star of the extended will be gusty winds, with dry conditions and warm temperatures as supporting characters. Snow will be the missing element from the performance. Strong foothills winds will taper off on Thursday as a dry front moves through the area. Flow aloft becomes zonal and increases in strength Friday which will develop a strong lee side trof and bring back strong foothills winds again for the weekend. During the daytime hours, mixing will allow for gusty winds to develop over the lower elevations of eastern Montana as well. This downslope pattern will keep precipitation chances confined to west facing mountain slopes and boost low elevation temperatures into the 40s to lower 50s from the weekend into the middle of next week. Chambers && .AVIATION... Isolated snow showers will persist through early evening over and near mountains and foothills, with local MVFR conditions associated with precipitation. Otherwise, VFR conditions will prevail across the area through tonight. Chambers && .PRELIMINARY POINT TEMP/POPS... Wed Thu Fri Sat Sun Mon Tue ----------------------------------------------------------- BIL 022/039 029/043 026/043 028/046 031/048 030/045 029/045 01/B 00/E 00/U 00/B 01/B 10/B 11/B LVM 019/036 025/039 024/041 027/042 030/045 027/042 028/041 02/N 21/N 00/N 00/N 02/W 21/N 22/J HDN 016/042 024/045 022/045 021/048 025/050 026/047 024/048 01/B 01/E 00/U 00/B 00/B 10/B 11/B MLS 012/037 023/043 021/041 022/047 026/047 027/045 023/045 00/B 00/B 00/U 00/B 00/B 00/B 00/B 4BQ 015/040 022/043 023/043 022/047 025/048 027/045 024/046 00/B 00/B 00/U 00/B 00/B 10/B 01/B BHK 011/036 020/042 020/040 019/046 025/047 025/044 021/045 00/B 00/B 00/U 00/B 00/B 00/U 00/B SHR 011/040 020/042 018/042 017/045 021/048 021/044 020/045 00/B 01/B 10/U 00/B 00/B 11/B 01/B && .BYZ WATCHES/WARNINGS/ADVISORIES... MT...Wind Advisory in effect from 6 AM Wednesday to 6 AM MST Thursday FOR ZONES 65-66. WY...None. && $$ weather.gov/billings