Area Forecast Discussion
Issued by NWS Billings, MT

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FXUS65 KBYZ 240959

Area Forecast Discussion
National Weather Service Billings MT
359 AM MDT Mon Oct 24 2016

.SHORT TERM...valid for Tdy and Tue...

Overall, a quiet weather pattern will continue for the next
couple of days across the forecast area. High pressure ridging
will continue for the most part across the northern Rockies
through Tuesday. This will result in mainly dry conditions and
mild temperatures. A large upper low off the Pacific northwest
coast will provide a southwest flow aloft across southern Montana
today. A weak disturbance within this flow will bring a slight
chance for a shower over the Beartooth/Absaroka Mountains and
adjacent foothills this afternoon and evening. Otherwise, expect a
partly to mostly sunny day.

A weak front will move across the area Tuesday bringing a light
wind shift to the northwest. This combined with another weak
disturbance aloft will bring a slight shower chance during the
afternoon and early evening to areas along and north of a
Livingston- Billings- Miles City line. Temperatures will remain
above normal with readings in the lower to middle 60s for most
areas today with middle to upper 60s expected on Tuesday. Hooley

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

General upper level ridging across Montana and Wyoming Wednesday
through Friday will keep drying conditions in place. Wave breaking
on top of this ridge Thursday will push flow to become more zonal
for a period and also amplify leeside trouging. This will support
a period of stronger gap flow winds Wednesday into Thursday before
a cold front moves through later on Thursday. Will boost gap flow
winds for these periods.

Ridging rebounds behind this wave Friday into Saturday before
troughing in the eastern Pacific shifts a bit more eastward on
Sunday. This period will coincide with an infusion of moisture
from Tropical Storm Seymour which will bring a bit more energy and
moisture into the area. Handling of the Seymours remnants is
varying amongst the models but general shift to a bit cooler and
more shower activity possible Sunday into Monday is consistent.

Overall not significant cooling in the boundary layer foreseen in
this scenario so well above normal temperatures Wednesday and
Thursday and again Saturday and Sunday will be followed by brief
cool downs with temperatures still close to the 60 degree mark.



Surface low pressure trough laying across the area will keep winds
relatively light over the region. High level clouds for most of
the day though cloud bases will begin lowering over western areas
with mountain shower activity developing this afternoon. This
could bring some shower activity to KLVM but VFR conditions will
prevail across the terminal sites. Some of the higher peaks could
see obscurations. borsum



    Tdy Tue     Wed     Thu     Fri     Sat     Sun
BIL 066 046/068 044/066 046/070 046/065 042/060 042/063
    1/B 11/B    20/B    00/B    11/B    22/W    11/B
LVM 065 045/067 043/065 044/069 043/065 041/061 041/062
    2/W 22/W    21/N    10/N    11/B    22/W    12/W
HDN 068 043/070 042/068 042/071 044/066 040/060 039/065
    0/B 11/B    10/B    00/B    11/B    22/W    11/B
MLS 063 040/066 045/065 042/068 044/061 039/056 040/062
    0/U 11/B    20/B    00/B    01/B    22/W    11/U
4BQ 068 042/069 043/067 041/072 044/066 039/059 040/064
    0/B 01/B    10/B    00/B    01/B    21/B    11/U
BHK 058 037/062 041/062 039/067 041/058 035/052 037/060
    0/U 01/B    10/B    00/B    01/B    22/W    11/U
SHR 069 042/068 038/066 040/072 040/067 038/062 038/064
    0/B 11/B    10/B    00/U    11/B    11/B    11/B




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