Area Forecast Discussion
Issued by NWS Billings, MT

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FXUS65 KBYZ 262041

Area Forecast Discussion
National Weather Service Billings MT
241 PM MDT Fri May 26 2017

.SHORT TERM...valid for Sat and Sun...

The short term continues to look unsettled, but nothing hazardous.
The low moving through Wyoming today will continue to move east,
skirting just south of the area tonight. The northeastern Bighorn
Mountains will see a few inches, but the track of the system will
favor the western and southern portions more. The area will
remain in northwesterly flow aloft through the weekend. There will
be enough moisture and instability lingering across the area from
Roundup, through Billings, to Sheridan and west could see afternoon
showers and isolated thunderstorms. The best chances will be over
the higher terrain. While there is some instability it does not
look enough to create any strong storms. With the rising heights
temperatures will return to normal tomorrow and continue to
gradually warm Sunday as the ridge axis moves closer. Reimer

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

Much of the long term will feature an upper ridge over the
Northern Rockies with northwesterly flow over the area. Weak waves
of energy will move down the east side of the ridge and through
the area producing showers and thunderstorms most afternoons and
evenings. Best chances for precipitation will be over the higher
terrain. By the middle to latter half of next week, models prog a
closed low to move onto the West Coast, eventually undercutting
the ridge and dropping south into the Desert SW. Moisture and
energy is progged to rotate around the low and into the area
maintaining shower and thunderstorm chances. High temperatures
will gradually warm from the 70s on Monday, into the 80s by the
end of the week, increasing the snowmelt and causing flows in area
waterways to increase as well. STP



An area of low pressure moving through Idaho and Wyoming will spread
clouds and a chance of showers to western locations this afternoon
and evening, mainly over the mountains and foothills. An isolated
thunderstorm or two cannot be ruled out as well. Showers will
gradually end from west to east overnight tonight. Local MVFR
conditions are possible in the heavier showers. Mountains will
become obscured. STP



    Sat     Sun     Mon     Tue     Wed     Thu     Fri
BIL 045/070 049/076 049/075 050/078 051/080 052/082 054/084
    12/T    13/T    21/B    11/U    11/U    11/B    22/T
LVM 038/067 041/074 042/074 043/077 044/077 044/079 045/080
    23/T    13/T    22/T    12/T    11/U    11/B    23/T
HDN 045/069 046/077 046/077 046/080 048/082 049/083 050/084
    12/T    12/T    21/B    01/U    01/U    11/U    12/T
MLS 047/072 048/076 045/075 045/078 048/080 050/082 053/083
    11/B    11/U    00/U    00/U    00/U    01/U    11/B
4BQ 046/068 046/074 044/073 043/076 047/079 048/080 051/081
    12/T    11/B    10/U    00/U    00/U    12/T    22/T
BHK 044/068 044/071 041/069 039/073 043/074 045/076 048/077
    01/B    11/U    00/U    00/U    00/U    01/U    11/B
SHR 042/065 044/070 043/072 043/076 044/076 046/079 047/081
    42/T    22/T    21/B    12/T    11/B    12/T    22/T




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