FXUS65 KBYZ 182136

Area Forecast Discussion
National Weather Service Billings MT
336 PM MDT Mon Mar 18 2019

.SHORT TERM...valid for Tue and Wed...

Dry conditions prevail across the region this afternoon. A weak
shortwave is moving north to south across eastern most zones this
evening, however, bringing precip potential across that area late
this evening and overnight. Eastern zones have some potential for
patchy fog again early Tuesday morning, with enhanced potential
anywhere that does receive precipitation.

Otherwise, dry conditions will prevail through short term period,
as a strong upper level ridge moves eastward toward the region
from the Pacific coast. Although snow cover continues to decrease,
it should still keep temps a little cooler for Tuesday. That
said, temps should be around seasonal average Tuesday for the
first time since early February, as the ridge approaches the
western zones.

Expect to see the warmest temps since early February on
Wednesday, with highs in the mid 40s to upper 50s across the


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

Limited changes for the extended forecast period. Models favor
unseasonably warm conditions through the work week, with highs in
the mid 40s to upper 50s throughout the work week.

Models appear in good agreement, for the beginning of the extended
forecast period, so expect to see dry conditions prevail the
latter portions of the work week.

There is some indication that conditions become a bit more
unsettled by Friday night, and remains unsettled through the
weekend and potentially into Monday. An upper level low is progged
to lift northeastward from four corners region toward southeast
Montana. Models do not agree well on how much this system will
impact the region, but have continued with inherited pops at this
time. Temperatures do appear to be slightly cooler, with passage
of the upper low, bringing temps back to around seasonal average.

This late period weather will require attention as details become
more certain.




There will be a slight chance of snow from KMLS S and E tonight.
Localized MVFR is possible with the snow. Patchy fog is possible
with localized low conditions E of KBIL over SE MT late tonight
through Tuesday morning. Otherwise, VFR will prevail through
Tuesday. Arthur



Tue Wed Thu Fri Sat Sun Mon
BIL 024/050 028/057 030/058 031/057 034/057 035/054 033/055
00/U 00/U 00/U 00/B 11/B 23/O 32/O
LVM 019/044 021/050 025/050 026/049 027/049 027/045 026/046
00/U 00/U 00/U 00/B 11/B 23/O 32/O
HDN 019/046 020/055 023/057 026/057 029/056 030/053 029/054
00/U 00/U 00/U 00/B 11/B 23/O 22/O
MLS 016/037 019/046 020/050 026/051 029/049 029/047 028/049
20/B 00/U 00/U 00/B 11/B 12/O 21/B
4BQ 022/040 023/050 024/052 029/054 031/051 030/049 029/050
20/U 00/U 00/U 00/B 22/O 24/O 21/B
BHK 019/036 020/044 020/046 024/046 029/045 028/045 027/046
20/B 00/U 00/U 00/B 22/O 24/O 21/B
SHR 022/045 022/054 027/056 029/055 031/055 031/050 029/051
00/U 00/U 00/U 01/B 22/O 23/O 32/O




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