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Area forecast discussion...updated 
National Weather Service Billings Montana
953 PM MDT Sat Mar 28 2015

winds are decreasing as weak vertical motions moves in from
northern Montana and low level cooling allows weak inversion to
weaken momentum Transfer. Expect winds to remain below warning
criteria overnight with certainly lighter winds on Sunday. Allowed
red flag warning to expire and cancelled high wind warnings. Humidity
recover will be only moderate across the western zones tonight
with low humidity across the region on Sunday. Update sent. Borsum


Short term...valid for sun and Monday...

Strong frontal passage moving across our forecast area this
afternoon. Convection has been weak with front in west...but some
marginal cape in eastern sections may be enough for an isolated
thunderstorm or two along with scattered showers...particularly
along northern Custer and Fallon County lines. Convective related
gusts could hit 60-70 miles per hour locally. Otherwise...sustained 30 to
near 40 miles per hour with gusts 50-55 miles per hour will be common in Post frontal
areas. Sharp temperature drops behind front 10-15 degrees. We will
try to keep up with stronger wind gusts reports as we get
them...and summarize something this evening as well.

System quickly exits region...with most areas experiencing a drop
in winds by 03-06z. Winds may hang on longer in the far east as
advertised by our High Wind Warning there which GOES until 3 am.

Modest ridging develops over our region behind the system on
Sunday. There appears to be a weak wave in the westerly flow...but
it appears to be too dry in the lower levels to generate much more
than some cloud cover. Look for cooler conditions Sunday with
breezy conditions...though nothing like todays. 500mb heights
continue to build a bit Monday for another unseasonably mild day.

Long term...valid for Tuesday...Wed...Thu...Fri...Sat...

No changes to the going extended forecast. Ridge Monday lingers
into Tuesday with another strong Pacific system arriving Tuesday
evening. Certainly some similarities between this system and the
current system moving through the area...though potentially a bit
more precipitation potential as the trajectory is a bit further
south. Will have to monitor Tuesday as another potential fire
weather day of concern. The Tuesday evening system opens the door
for a change to a progressive Pacific pattern. This brings in a
cooler and unsettled regime through next weekend with several
Pacific systems moving through. Currently the best chance for
widespread precipitation looks to be next Saturday/Sunday...but
a system on Thursday is looking promising for at least some
Rain/Mountain snow. Chambers


Gusty west to northwest winds continue...but are tapering off
this evening. Mainly VFR conditions will prevail across much of
the region overnight. An area over showers pushing south into the
region could bring localized MVFR conditions in areas north of
Billings. Areas east of Billings...including kmls and kbhk may see
a bit better chance for showers around midnight and into the early
morning hours. Local MVFR conditions may be possible in these
areas. Aag


Preliminary point temp/pops...

Sun Monday Tuesday Wednesday Thursday Friday Sat
bil 040/066 042/071 045/072 041/055 033/050 030/053 033/058
10/b 00/b 01/b 32/west 22/west 22/west 21/b
lvm 035/063 038/069 042/068 035/048 026/046 024/049 028/053
10/u 00/b 02/west 43/west 23/west 32/west 21/b
hdn 037/068 037/073 039/076 040/057 032/052 029/054 032/059
10/u 00/b 01/b 32/west 23/west 22/west 11/b
mls 038/065 039/069 041/076 042/057 033/050 030/053 033/060
20/u 00/b 01/b 22/west 12/west 22/west 11/b
4bq 037/065 036/070 039/077 040/056 032/050 028/052 029/061
10/u 00/b 01/b 22/west 22/west 22/west 11/b
bhk 035/060 035/066 038/074 040/054 030/047 026/049 030/057
30/u 00/b 01/b 22/west 12/west 22/west 11/b
shr 037/062 034/068 037/075 036/051 028/048 026/050 028/057
10/u 00/b 01/b 22/west 23/west 22/west 21/b


Byz watches/warnings/advisories...



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