Area Forecast Discussion
Issued by NWS Billings, MT

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FXUS65 KBYZ 182131
AFDBYZ

Area Forecast Discussion
National Weather Service Billings MT
331 PM MDT Thu Oct 18 2018

.SHORT TERM...valid for Fri and Sat...

Satellite imagery and upper air analysis show a weak upper low
over UT, with a northern split shortwave moving moving to our east
in the Dakotas. Temps have warmed to the lower 70s many places,
per enhanced pre-frontal mixing. To the north there is a clipper
dropping thru Alberta/Saskatchewan, and a dry cold front nearing
the MT border.

Canadian cold front will be dry but will bring some breezy NW
winds across our east on Friday, and temps a good 10 degrees
cooler tomorrow than today. Building surface high over our east
will bring a cool night Friday night. Temps will rise back to the
mid 60s to near 70 degrees Saturday with next period of downslope
warming. Ridge axis with above normal heights will remain the
dominant feature through the remainder of the week.

JKL

.LONG TERM...valid for Sun...Mon...Tue...Wed...Thu...

High pressure aloft will keep our region dry with above normal
temps Sunday and Monday, though these days should be a bit cooler
than Saturday as another (weaker) clipper brings a push of
easterly surface winds. By Tuesday afternoon we will see modestly
lower heights as SW CONUS cut off low lifts north. There is an
opportunity for a few showers over our southern mountains late
Tuesday and again Wednesday as the ridge is gradually suppressed
by this energy and another Pacific shortwave.

Model consensus continues to suggest onset of a stronger zonal
flow for the latter half of next week. Thus, look for a better
chance of showers, rain showers that is, by Thursday and Friday...
with some snow over the mountains.

Temps will remain above normal through most of next week with
highs mostly 60s to lower 70s. Some modest cooling is possible by
the end of the week.

JKL

&&

.AVIATION...

Clear conditions will continue across the region tonight into
tomorrow. Wind will decrease into the overnight hours, becoming
light. Carrothers

&&

.PRELIMINARY POINT TEMP/POPS...

    Fri     Sat     Sun     Mon     Tue     Wed     Thu
-----------------------------------------------------------
BIL 039/061 036/068 040/065 038/062 039/064 042/064 041/061
    00/U    00/U    00/U    00/U    00/U    01/B    12/W
LVM 033/064 033/070 039/066 037/063 037/063 039/062 038/057
    00/U    00/U    00/U    00/U    01/U    11/B    23/W
HDN 035/060 032/069 037/064 035/061 037/065 040/065 040/061
    00/U    00/U    00/U    00/U    00/U    01/B    12/W
MLS 038/059 031/062 037/061 035/060 036/063 041/063 039/060
    00/U    00/U    00/U    00/U    00/U    01/B    01/B
4BQ 038/059 032/064 038/064 035/062 037/064 041/064 039/061
    00/U    00/U    00/U    00/U    00/U    11/B    01/U
BHK 037/056 027/057 035/060 031/057 034/060 038/061 038/060
    00/U    00/U    00/U    00/U    00/U    11/B    01/U
SHR 036/060 031/067 035/065 035/062 036/063 038/064 037/060
    00/U    00/U    00/U    00/U    00/U    01/U    01/B

&&

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

&&

$$
weather.gov/billings


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