textproduct: Billings

KEY MESSAGES

- Periods of strong winds along the western foothills lasting through the week. Potentially dangerous crosswinds developing Wednesday through Friday. - Periods of heavy snow over the Beartooth-Absaroka Mountains through Wednesday; rain and snow showers expected at lower elevations.

- Potential for a dose of colder air by the end of the week, along with potential light snowfall. High uncertainty exists.

AVIATION

Strong SW to W winds will continue along the western foothills (KLVM, K6SO), decreasing into the morning hours as a cold front moves into the area from the northeast. Mountain wave activity along the Beartooth/Bighorn mountains will bring moderate chances for strong and erratic winds (SW to W gusts of 40-55kts) to the immediate foothills, including KRED. Sheridan will see less wind from mountain waves, but the potential for 20-40kts. Strong winds aloft will bring LLWS to eastern areas overnight. The cold front will bring moderate to high chances for rain/snow transitioning over to snow for areas mainly south and west of KMLS Tuesday morning into the afternoon. MVFR to IFR conditions are possible with the precipitation, and mountain obscurations can be expected due to the snow. STP

PRELIMINARY POINT TEMP/POPS

Tue Wed Thu Fri Sat Sun Mon ----------------------------------------------------------- BIL 032/038 033/048 034/056 036/057 022/037 018/049 028/057 39/S 76/O 00/N 02/O 53/J 21/B 10/B LVM 037/040 036/042 031/049 034/053 029/045 027/050 030/053 38/O 66/O 00/N 01/N 22/J 21/B 10/U HDN 028/038 030/048 030/058 033/057 019/040 015/047 024/057 49/O 77/O 00/N 02/O 55/J 22/J 11/B MLS 028/039 025/045 029/052 033/047 015/029 012/041 022/049 23/S 64/O 00/N 02/S 54/J 11/B 00/U 4BQ 029/039 029/045 031/054 034/054 019/036 015/044 025/052 16/S 56/O 00/U 01/B 44/J 11/B 10/B BHK 025/035 020/040 025/049 028/044 011/025 010/035 018/046 12/S 45/S 00/N 02/S 55/J 11/B 00/U SHR 025/037 025/045 022/054 029/055 019/040 017/047 024/053 18/O 38/O 10/U 01/U 33/J 22/W 21/B

BYZ WATCHES/WARNINGS/ADVISORIES

MT...High Wind Watch in effect from late Tuesday night through Friday morning FOR ZONES 34-42-63-65-66-141-172-228. High Wind Warning in effect until 6 AM MST Tuesday FOR ZONE 56. Wind Advisory in effect until 11 AM MST Tuesday FOR ZONES 65-66. Winter Storm Warning in effect until 5 PM MST Wednesday FOR ZONES 67-68. High Wind Warning in effect until 5 AM MST Tuesday FOR ZONES 141-172. Winter Weather Advisory in effect until 5 PM MST Wednesday FOR ZONE 171. WY...Winter Weather Advisory in effect until 5 PM MST Wednesday FOR ZONE 198. High Wind Warning in effect until 8 AM MST Tuesday FOR ZONE 199.