Area Forecast Discussion
Issued by NWS Billings, MT
FXUS65 KBYZ 260249
Area Forecast Discussion...Updated
National Weather Service Billings MT
849 PM MDT Tue Oct 25 2016
Upper ridge was in the process of building northward into
Montana. This was pushing energy to the north and leaving the area
pretty much precipitation free. The lone exception was over the
southwest mountains were some weak energy and moisture may force a
light shower tonight. Forecast has this well in hand. No changes.
.SHORT TERM...valid for Wed and Thu...
Minimal changes to the inherited short term forecast this
afternoon...with upper level high pressure dominating the weather
pattern through period.
Weak shortwaves and Pacific moisture do continue to stream into
the western mountains today...as ridging continues to
build...bringing slight pops to higher terrain into tonight.
Otherwise...dry conditions will prevail. Temperatures will
continue to run above normal with daytime highs near 70 degrees
for Wednesday and Thursday. AAG
.LONG TERM...valid for Fri...Sat...Sun...Mon...Tue...
Several minor changes to the long term forecast. Models remain
consistent pattern becoming more unsettled beginning Friday...and
early next week...as remnants of Hurricane Seymour interact with a
deepening upper level Pacific.
A stronger disturbance moves through the area Friday and Friday
night bringing a better chance of showers across the region.
Although a cold front will cross the region with this
disturbance...snow is not much of a concern...since the following
airmass remains fairly warm. Best precip potential actually
appears to be associated with a warm front pushing northward
overnight Friday night...into Saturday morning. Did raise pops
significantly through this period. Saturday looks mainly
dry...with ridging quickly developing between weather systems.
Another strong disturbance pushes through the area Sunday evening
through Monday. The biggest changes with this period has energy
shifting eastward across the region...rather than lifting north
around the area. This will allow improved shower chances...but
some downslope may still come into play. This system does appear
to tap into some cooler air...but not bring into the region until
after the bulk of the precip is completed...so snow is still not
much of a concern...even for higher terrain.
Temperatures will linger in the 60s through the weekend...finally
falling to more seasonal 50s early next week. AAG
While significant mid and high level cloud cover will be over the
area, VFR conditions will prevail overnight through the day
.PRELIMINARY POINT TEMP/POPS...
Wed Thu Fri Sat Sun Mon Tue
BIL 045/069 047/071 048/063 042/057 043/063 041/056 038/054
10/B 00/B 14/W 52/W 11/B 23/W 11/B
LVM 044/069 046/071 044/062 040/059 042/061 039/053 037/054
21/B 11/N 14/W 62/W 12/W 33/W 22/W
HDN 041/071 042/074 045/065 041/059 039/064 039/057 035/056
10/B 00/B 12/W 42/W 11/B 23/W 11/B
MLS 042/068 044/071 046/064 041/053 039/061 039/053 034/052
10/B 10/U 12/W 42/W 11/B 24/W 11/B
4BQ 042/071 042/074 046/068 042/057 040/066 039/057 034/055
10/U 00/U 01/B 42/W 11/B 23/W 11/B
BHK 039/066 040/070 043/063 039/050 036/059 036/052 031/049
10/B 00/B 11/B 42/W 11/B 33/W 11/B
SHR 039/071 040/073 043/068 039/061 037/066 038/057 032/054
10/U 00/U 02/W 42/W 11/U 22/W 11/B