Area Forecast Discussion
Issued by NWS Billings, MT

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378
FXUS65 KBYZ 301632
AFDBYZ

Area Forecast Discussion...Updated
National Weather Service Billings MT
932 AM MST Wed Nov 30 2016

.UPDATE...

Light snow will continue through this morning along the Dakota
borders as the upper low responsible for the snow is situated over
Minnesota. This low will continue to slowly move east today
resulting in the light snow across Fallon and Carter counties to
end for the most part by this afternoon with just a chance during
the afternoon hours. The only update this morning was to increase
snow chances into the likelihood category for the remainder of
this morning across Fallon and Carter counties. Elsewhere, expect
a mostly sunny day with tempeatures around normal for this time of
year with readings in the middle to upper 30s, except for areas
across our far east where middle 20s will be common. Hooley

&&

.SHORT TERM...valid for Tdy and Thu...

The snow has pretty much ended across southeastern Montana. The
low over the Upper Plains that has been responsible for the snow
will continue to slowly drift to the east. As it does, winds will
continue to decrease, but gusts will remain 20 to 30 mph through
the early afternoon. Since winds are still gusting over 30 mph
and the visibility remain lowered in Baker, will let the Winter
Weather Advisory continue through 6 AM.

Across the rest of southern Montana, it should be a relatively
mild day. Temperatures should be right around normal this
afternoon, mostly in the mid to upper 30s, with upper 20s to lower
30s from Miles City and Broadus east. This evening a shortwave
will approach from the west, and while the bulk of the energy will
go south and west of southern Montana, some will work into
central Montana. For the most part much of the snow chances with
this will be over the mountains. A couple of inches are possible
in the higher terrain, but should not have any impacts.

Thursday some of the energy will drift over the plains. With
generally westerly winds, the plains from Billings and Roundup
west will probably remain dry. Southeastern Montana will a chance
at some snow, but accumulations will be light. Reimer

.LONG TERM...valid for Fri...Sat...Sun...Mon...Tue...

The extended period will be rather unsettled with a chance for
showers (both rain and snow) through the weekend. Details are not
certain at this time but with most of these showers coming in
northwest flow aloft, the best chance for accumulations will be
over the higher terrain of the Bighorns, Bearooths, Crazy, and
Snowy mountains. Over the plains it will be more sporadic.
Temperatures will also warm up a little bit through the weekend as
the upper level flow turns more west and southwesterly. This will
push temperatures into the upper 30s and low 40s this weekend.
Conditions quiet down a little bit on Sunday before a more
significant system moves in for the start of the work week.

While there is much ensemble spread in relation to the details of
this system, the model ensembles are hinting at a big cool down
at the beginning of next week. A low pressure system will move
over the region on Monday and it could give most of the area a
shot of snow. The more significant feature of this storm is the
cold Canadian air that it will drag in from the north. Right now,
took a blend of the Raw model guidance and the prior forecast
which puts temperatures on Tuesday and Wednesday in the upper
teens. Night time temperatures could hit zero next week on Tuesday
or Wednesday morning. Be sure to stay up to date in the next few
days as the details of this weather system are constantly
evolving. Dobbs

&&

.AVIATION...

MVFR/IFR conditions will occur from KMLS E and SE through
the day. Mountain obscurations will move over the Crazys,
Beartooths and Absarokas this afternoon. Scattered snow showers
will move into the KLVM, Big Timber and Harlowton areas tonight.
Expect MVFR/IFR conditions, with areas of mountain obscuration
over the western mountains. Areas of obscuration will reach the NE
Bighorns as well. Widely scattered snow showers will affect the
area Thu. morning accompanied by MVFR/IFR conditions. The
mountains will have areas of obscuration. Arthur

&&

.PRELIMINARY POINT TEMP/POPS...

    Tdy Thu     Fri     Sat     Sun     Mon     Tue
-------------------------------------------------------
BIL 038 026/040 025/037 028/041 030/042 028/033 013/019
    0/U 11/E    12/J    22/W    23/W    32/J    11/E
LVM 035 025/035 023/033 027/038 029/041 024/029 011/018
    1/N 44/S    42/J    32/W    34/W    42/J    22/J
HDN 037 023/039 023/035 024/041 028/042 026/034 009/018
    0/U 11/E    12/J    12/W    12/W    22/J    11/E
MLS 031 016/033 020/031 021/040 024/040 024/032 006/015
    1/E 02/J    22/J    13/W    12/J    32/J    22/J
4BQ 031 014/035 018/031 019/038 022/039 022/032 007/016
    1/B 02/J    22/J    12/J    11/B    22/J    21/B
BHK 026 011/028 014/029 013/036 020/035 020/030 005/012
    7/S 21/B    22/J    12/J    21/B    32/J    12/J
SHR 033 017/035 017/033 017/038 022/041 020/031 006/017
    0/U 12/S    22/J    12/J    12/J    22/J    22/J

&&

.BYZ WATCHES/WARNINGS/ADVISORIES...
MT...None.
WY...None.

&&

$$
weather.gov/billings



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