Area Forecast Discussion
Issued by NWS Billings, MT

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FXUS65 KBYZ 210932
AFDBYZ

Area Forecast Discussion
National Weather Service Billings MT
332 AM MDT Sun Oct 21 2018

.SHORT TERM...valid for Tdy and Mon...

A weak cold front is currently working its way across our
forecast area this morning. No precipitation will accompany the
front as sunny skies will prevail today. Winds will become light
from the east this afternoon. This cool easterly surface flow will
continue into Monday. 500mb heights will be slightly lower today
and Monday compared to Saturday. This combined with an easterly
surface flow will result in temperatures cooler than Saturday,
although still above normal. Highs today will be in the lower to
middle 60s with readings slightly cooler Monday with upper 50s to
lower 60s across the lower elevations. Hooley

.LONG TERM...valid for Tue...Wed...Thu...Fri...Sat...

Moisture moving north along the continental divide, ahead of SW
U.S. trof that slowly moves northeast over time, will bring a
chance for afternoon/evening showers over mountain/foothills
locations Tuesday and Wednesday afternoon. A stronger plains
moisture fetch pushes up the front range on a southerly low level
jet Tuesday night which may bring a few showers to SE Montana
into Wednesday. None of this activity looks very impactful at
this time.

Upper trof shifts east of the area Wednesday night opening up the
area to stronger flow off the Pacific. Several disturbances ride
this flow through the area from Thursday through the weekend.
While there is enough energy and moisture for precipitation with
this pattern, downslope west to northwest winds in the lower
levels will limit low level precipitation potential. West and
north facing mountains and foothills will see the best chances for
rain/snow. Temperatures will cool down a bit heading into the
weekend, but not very far below seasonal levels given the Pacific
nature of the airmass, though cloud cover and precipitation could
push temperatures into the upper 40s/lower 50s in some locations.
There will be some windy periods associated with this pattern
change. Chambers

&&

.AVIATION...

VFR conditions will prevail through Sunday. Chambers

&&

.PRELIMINARY POINT TEMP/POPS...

    Tdy Mon     Tue     Wed     Thu     Fri     Sat
-------------------------------------------------------
BIL 064 036/059 036/064 042/067 042/065 044/061 039/056
    0/U 00/U    00/U    10/U    10/B    22/W    32/W
LVM 069 037/063 037/065 040/062 039/061 041/057 036/055
    0/U 00/U    01/B    11/U    11/B    23/W    32/W
HDN 063 033/062 035/064 039/067 039/066 041/061 038/057
    0/U 00/U    00/U    00/U    10/B    22/W    32/W
MLS 061 033/059 036/063 040/065 040/064 041/061 038/055
    0/U 00/U    00/U    00/U    00/B    12/W    21/B
4BQ 062 034/061 037/065 042/066 042/066 042/061 038/055
    0/U 00/U    00/U    00/U    00/B    12/W    22/W
BHK 060 031/058 032/059 039/062 039/063 039/059 035/053
    0/U 00/U    00/N    11/B    00/U    01/N    21/N
SHR 066 035/062 036/064 038/065 037/063 037/059 035/054
    0/U 00/U    01/B    11/U    01/B    12/W    32/W

&&

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

&&

$$
weather.gov/billings



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