Forecast Discussions mentioning any of "HRRR" "RAP" "RUC13" "RUC" "RR" received at GSD on 12/22/20

Area Forecast Discussion

National Weather Service La Crosse WI

 514 PM CST Mon Dec 21 2020

.SHORT TERM...(This evening through Tuesday)
Issued at 310 PM CST Mon Dec 21 2020

Deep 999mb surface low located over northeast WI this afternoon.
Strong pressure gradient on the backside of this low was producing
gusty west/northwest winds across our area with gusts as high as 35
to 45 mph in the more open wind-prone areas of northeast IA and
southeast MN. Clouds were also plentiful with a few rain/snow
showers mainly along/north of I-94. Otherwise, temperatures as of 1
pm were in the 30s to lower 40s...not bad for nearing the end of
December!

This deep low will continue to pull east into the Great Lakes region
this evening as high pressure builds in from the Plains. As a
result, look for the winds to slacken considerably with skies
clearing from west to east overnight. Overnight low temperatures
will be in the teens to lower 20s under mostly clear skies by
dawn.

Mid/high level clouds expected to increase through the day Tuesday
in warm air advection ahead of storm system moving through the
Northern Plains. Plan on winds increasing out of the south as well,
gust 30-35 mph over the open wind-prone areas of northeast
IA/southeast MN. Highs are expected to top off well into the 30s,
maybe even a few lower 40s.

.LONG TERM...(Tuesday night through Monday)
Issued at 310 PM CST Mon Dec 21 2020

Better consensus (finally) has been reached on a more likely
outcome for the storm system moving through the region Tuesday
night through Thursday morning.

Very good agreement exists in the 21.12Z deterministic
NAM/GFS/ECMWF/Canadian and the latest RAP runs that an impressive
moisture tongue surges northward into the area on 50-60kt south
winds in the 925-850mb layer Tuesday night after midnight. Timing
and placement are all consistent that this wind flow is
isentropically lifting /290K surface/ with moisture transport
convergence and light precipitation signals. This moister surge
arrives after midnight and deepens the surface-based saturated
layer to nearly 2km agl. This spreads across WI by sunrise and
areas of drizzle should result. The only area subject to freezing
drizzle would appear to be north of I-94, and really north of
Highway 29 in northcentral WI, and for a few hours. The strong
southerly flow warms temperatures and removes any icing threat.
This is a rather large change to the Tuesday night forecast.

All of the above occurs in the warm sector of a strong cyclone
shifting out of the Dakotas and into northwest WI by Wednesday
morning...with a very cold front just east of Interstate 35. There
are still details on the upper trough energy and thus the surface
cyclone position and depth. But, the cold front will shift
through Wednesday and begin cold advection in most of the model
guidance...and a conversion to snow. At this time, it looks like
light snow will continue through Wednesday night with amounts
generally below 2" - highest north of I-94. This agrees well with
ensemble families and plumes as well - but of course outliers
exist. The dry slot could be more of a player causing less
precipitation Wednesday night. The opposite would be true /more
snow/ of the wrap-around precipitation from the cyclone to the
north...and this is where uncertainty remains. Overall, the
biggest impacts are cold and wind from this system, and snow looks
to be of minor impact. We have this mentioned well.

Thursday through Monday...
Thursday and Friday are the coldest days but appear precipitation
free. Winds on Thursday are likely to gust 20-30 mph keeping wind
chills colder than -5 /south/ to -15F /north/ across the local
area. There may be a need for a Wind Chill Advisory Wednesday
night into Thursday morning with borderline -20F values in
southeast MN and northcentral WI.

Temperatures then get back normal by Saturday as large scale
ridge building occurs over the CONUS. The next weather may occur
late Sunday and into Monday but storm track probabilities are to

&&

.AVIATION...(For the 00Z TAFS through 00Z Tuesday evening)
Issued at 514 PM CST Mon Dec 21 2020

MVFR ceilings will persist for a couple more hours this evening
before the stratus deck fully moves off to the east. Then VFR
conditions are expected through the remainder of the TAF period with
neither visibility nor weather impacts expected. The main concerns
during this period are the winds. Gusty conditions will briefly
subside tonight. Winds will switch and be from the south by early
tomorrow morning with gusts picking back up again for the day.
Closer to late afternoon and evening, LLWS threat increases. Speeds
nearing 60 knots from the south are possible by Tuesday evening
around 1500 ft AGL at KRST and 2000 ft AGL at KLSE.

&&

.ARX WATCHES/WARNINGS/ADVISORIES...
WI...None.
MN...None.
IA...None.
&&

$$

SHORT TERM...DAS
LONG TERM...Baumgardt
AVIATION...Peters



Area Forecast Discussion

National Weather Service Goodland KS

 753 PM MST Mon Dec 21 2020

.UPDATE...
Issued at 751 PM MST Mon Dec 21 2020

After further consultation/incoming guidance, have opted to issue
a High Wind Watch for the entire CWA for late Tuesday night into
Wednesday. Stronger signal for gusts to reach up to 60 to 65 mph
during the Watch period. Have also continued a mention of
potential blowing dust cropping up across the CWA.

&&

.SHORT TERM...(This evening through Tuesday night)
Issued at 205 PM MST Mon Dec 21 2020

Water vapor imagery and 500mb RAP analysis showed a trough across
the eastern CONUS, with an upper ridge moving into the northern and
central Rockies. This pattern placed the region under northwest
flow. Meanwhile at the surface, high pressure drifted across the
area. At 2 PM MST, light west winds were shifting to the southwest,
with temperatures mainly in the 50s.

The upper ridge pushes from the Rockies into the Plains tonight,
with mostly clear skies prevailing and temperatures ranging from the
upper teens near Kit Carson, Colorado to the low 30s near Hill City,
Kansas. Light winds from the southwest persist.

Temperatures peak in the mid 50s to low 60s on Tuesday. The upper
flow turns to the southwest on the backside of the ridge as a
disturbance pushes from the Pacific Northwest towards the High
Plains. With this wave comes a strong cold front which is pegged to
move through the region Tuesday night. There is a slight chance of
light snow behind the front, but confidence in occurrence is low
at this point. The forecast currently calls for under a half inch
of snow east of Highway 25.

More importantly, this cold front looks to bring strong winds and a
return to colder temperatures. As the front pushes through Tuesday
evening, winds will abruptly turn to the northwest, increase, and
continue through the night. Gusts as high as 50 mph will be
possible. Low temperatures range in the mid teens to mid 20s.

.LONG TERM...(Wednesday through Monday)
Issued at 112 PM MST Mon Dec 21 2020

The main points of interest for the extended period include gusty
winds on Wednesday, dry weather for Christmas and another potential
chance for precipitation this weekend.

The start of the extended period will feature a neutral tilted
trough over the plains. A tight pressure gradient will lead to gusty
to windy conditions that should subside during the afternoon to
evening hours as the trough moves off to the east. I have upped the
winds a little bit as it appears the timing of the passage of the
trough has slowed a bit. Currently, not expecting any precipitation
as the Tri-State area will be in the dry slot of the storm system.
Cooler temperatures are expected throughout the day as CAA enters
the plains. The trough should exit the area Wednesday evening into
early Thursday morning. As this occurs ridging will set up leading
to average to above average temperatures and dry conditions for
Christmas Eve and Christmas Day. Heading into the weekend the ridge
breaks down as the next system takes shape over the Pacific Ocean;
which leads to zonal flow over the plains. Another cold front
associated with a cutoff low moves into the area Sunday morning,
which may bring some light rain/snow to the CWA. Currently, my
confidence in precipitation is low as not all guidance is picking up
on this occurring. Due to my low confidence, I will leave below
15 POPS in my grids but will continue watch for any changes. Weak
ridging then sets up for the start of the new work week, ahead of
a potentially stronger system. Considerable uncertainty still
exists with this system with guidance, so it will continue to be
monitored.

Temperatures for the extended period will start significantly cooler
than the previous days as highs for Wednesday will struggle to get
out of the 30s. Lows will fall into the lower teens Wednesday night
into Thursday morning as wind chill values are currently forecasted
to approach zero. Christmas Eve day will feature slightly warmer
temperatures in the 40s. Christmas Day and into the weekend highs
will be widespread in the 50s and maybe approaching 60 in a few
spots. Another cold front as mentioned above will move through on
Sunday dropping the highs for the latter portion of the forecast
period back down into the 30s and 40s for highs.

&&

.AVIATION...(For the 00Z TAFS through 00Z Tuesday evening)
Issued at 335 PM MST Mon Dec 21 2020

Vfr conditions are expected through the TAF period at KGLD and
KMCK terminals. Light southwest winds prevail through the
overnight hours and Tuesday morning, then increase during the
afternoon. KMCK is anticipated to see LLWS in the 10z to 17z
timeframe.


&&

.GLD WATCHES/WARNINGS/ADVISORIES...
KS...High Wind Watch from Tuesday evening through Wednesday afternoon
     for KSZ001>004-013>016-027>029-041-042.

CO...High Wind Watch from Tuesday evening through Wednesday afternoon
     for COZ090>092.

NE...High Wind Watch from Tuesday evening through Wednesday afternoon
     for NEZ079>081.

&&

$$

UPDATE...JN
SHORT TERM...JBH
LONG TERM...TT
AVIATION...JBH




Area Forecast Discussion

National Weather Service Lincoln IL

 936 PM CST Mon Dec 21 2020

.SYNOPSIS...
Issued at 220 PM CST Mon Dec 21 2020

Quiet weather is on tap through Tuesday night, as an area of high
pressure moves east across the Mississippi Valley. By mid week, a
strong storm system will bring rain to central Illinois, changing
over to snow before it ends. While snowfall amounts will be
minimal, the coldest air of the season will follow this system,
with wind chills falling below zero for Christmas Eve and early
Christmas Day.

&&

.UPDATE...
Issued at 925 PM CST Mon Dec 21 2020

A strong northwesterly low level jet will continue to mix to the
surface this evening creating wind gusts of 30-35 mph, especially
north of I-70. The pocket of intense winds will shift east of our
CWA between midnight and 2 am, allowing sustained NW winds to
gradually drop into the 10-15 mph range. By sunrise, winds are
expected to diminish to 5-8 mph in most areas. Cloud cover has
been confined to along and north of I-74, and those clouds have
shifted east to cover Bloomington to Danville. By midnight, skies
should become clear across the entire area.

Steady cold air advection the rest of the night will cause low
temps to bottom out in the mid to upper 20s, despite most areas in
the low 40s at 9 pm.

The main update this evening was to increase the winds through
08z/2am. Otherwise, the remainder of the forecast database
appeared on track.

&&

.SHORT TERM...(This evening through Tuesday)
ISSUED AT 220 PM CST Mon Dec 21 2020

Main upper wave has shifted into Indiana early this afternoon,
though a circulation in northern Wisconsin continues to push an
area of lower clouds south into northern Illinois. Humidity time-
height plots favor a southern extent roughly along I-74 late
afternoon and early evening, before lifting northeast. Otherwise,
quiet weather is expected through Tuesday, as a surface ridge axis
drifts east.

Temperatures have reached the low to mid 50s in much of the
forecast area this afternoon. While not quite as mild on Tuesday,
highs in the mid to upper 40s appear likely.

.LONG TERM...(Tuesday night through Monday)
ISSUED AT 220 PM CST Mon Dec 21 2020

Main highlight during this period remains with the strong mid week
storm system, and subsequent blast of cold air.

Upper level trough currently off the Pacific Northwest coast will
dig as it moves into the Plains, drawing a cold air mass
southward. Morning synoptic models are in decent agreement with
the surface low placement over Minnesota by early Wednesday
morning, with the cold front sweeping through in the late
afternoon or early evening. Main differences are with the
precipitation amounts when it comes to any potential snow
accumulation. Daytime precip remains all rain, with a mix
beginning around sunset west of the Illinois River. However, the
GFS and the NAM to a lesser extent has much of the precip out in
the evening before a changeover occurs in eastern Illinois, while
the international models dry out areas west of I-55 and keep
precip going in the east. Overall trend has been for a diminished
potential for decent accumulations, and will only mention a few
tenths of accumulation from about I-55 east.

Lobe of 850 mb temperatures drops down to around -17C over our
area by midday Thursday, with the GFS and Canadian models
suggesting potential for colder than -23C by midnight. Raw 2 meter
temperatures off the GFS appear unreasonably cold for the lack of
snow cover, but the MOS guidance appears closer to reality. Highs
on Thursday may struggle to reach 20 northwest of the Illinois
River with 20s elsewhere, and the pressure gradient stays up
enough to allow wind chills to fall below zero by early Christmas
morning.

While the upper level pattern quickly flattens early this weekend,
another storm system is expected to develop over the central
Plains and quickly move southeast. GFS is most robust with this
development and has widespread precipitation over our area by
midday Sunday, while the European model draws most of its moisture
up into our area as the system exits. Will not make any changes
from the model blends at this time, which generally go with silent
20 PoP`s for Sunday and Sunday night.

&&

.AVIATION...(For the 00Z TAFS through 00Z Tuesday evening)
Issued at 600 PM CST Mon Dec 21 2020

Main forecast concern remains the strong W-NW low level winds.
Gusts will continue this evening in the 25-30KT range before
diminishing after midnight. HRRR shows a secondary push of strong
gusts rotating through at least our northern terminals this
evening.

VFR conditions will prevail. An area of ceilings around 6,000
feet will affect the KPIA-KCMI corridor this evening, before
moving out after 06Z. Little to no cloud cover is expected the
remainder of the 00Z TAF period.


&&

.ILX WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

$$

UPDATE...Shimon
SYNOPSIS...Geelhart
SHORT TERM...Geelhart
LONG TERM...Geelhart
AVIATION...Shimon



Area Forecast Discussion

National Weather Service Marquette MI

 731 PM EST Mon Dec 21 2020

.SHORT TERM...(This evening through Tuesday)
Issued at 350 PM EST MON DEC 21 2020

Latest RAP analysis and GOES WV imagery show a shortwave trough with
a closed surface low of about 999mb moving east-southeast across
northern WI. This is a quick-moving Clipper system as the low will
be over lower Michigan by tonight. As the shortwave moves across WI,
it will continue to lose the fgen that it had earlier this morning,
which will cause the intensity of the snow to lighten up and turn
into more of a light snow thanks to a weak inversion at about 3kft
and the system losing shear. Wind flow will turn more northerly
behind the shortwave but will not be supportive enough for steady
lake-enhancement. At best, there will be minimal lake-enhancement
off Lake Superior in the northerly wind belts, mainly in the higher
terrain with 850mb temps around -6 C. As of now, snow totals look
generally good from the overnight shift but may bump a few areas up
because had a couple reports of around 3 inches along the WI border.
Still not really expecting much east of Marquette with light
accumulations at best but will tweak amounts slightly in case some
areas overachieve. There have been some areas of patchy freezing
drizzle that have been reported but this shouldn`t last long with
maybe a thin glaze of ice accumulation is possible. Made some
changes to the PoPs over the east since some light snow is making it
earlier than anticipated Snow will wind down by the evening hours
but will linger over the northwest wind belts with flurries but
nothing major as flow will continue to weaken and cut off any
remaining LES by early Tuesday morning. If you are hoping that skies
clear enough to see the conjunction of Saturn and Jupiter in the
southwest sky, I don`t have the news you are looking for. Skies look
to remain cloudy across Upper Michigan through the overnight hours
and any partial clearing that does occur won`t happen until after
sunrise Tuesday morning.

A brief area of high pressure will move towards Upper Michigan
Tuesday morning and bring a period of dry weather for most of the
day before the next system approaches late Tuesday into Wednesday.
As for temperatures, didn`t tweak much for today from previous fcst.
Did make a few changes for lows tonight as cloud cover will be
pretty persistent and not dropping very much with lows in the upper
teens to low 20s. Highs for Tuesday will still be above average for
this time of year with highs mainly in the 30s.

.LONG TERM...(Tuesday night through Monday)
Issued at 442 PM EST MON DEC 21 2020

Medium range models indicate that the split flow pattern that has
led to below normal snowfall since the beginning of Nov will
generally continue through the end of December. The northern branch
jet stream will remain dominant, especially so in the mid to late
week period when the pattern amplifies across North America. This
amplification will feature a mid-level ridge building northward thru
western Canada which will force a deepening trough downstream into
the central U.S. on Wed. The leading shortwave with this amplifying
trough is expected to spin up a deepening sfc low over the Northern
Plains Tue afternoon which models have tracking ne into either
western Lake Superior or the west half of the U.P. on Wed and
then into Ontario on Thu reaching James Bay Thu evening. WAA ahead
of this low will bring the potential for widespread mixed pcpn on
Wed into Wed evening, with the prospect of moderate lake effect
snow behind the system Wed night into Christmas Day for the north-
northwest wind snow belts of Lake Superior as Arctic air (850 mb
temps of -20C to - 25C) floods the region. In addition to the n-nw
wind LES, temperatures will also trend below normal for Christmas
Eve into Christmas Day with min temps falling into the single
digits over the west half of the U.P. Wed night and into the
single digits across the U.P. on Christmas morning. Highs
Christmas Eve will only be in the 10 to 15F range west half to
upper teens east half with wind chill values well blo zero across
much of the area. Despite the pattern amplification, models
continue to show the pattern remaining progressive as shortwaves
moving off the ne Pacific will cut thru the western ridge. In
addition, after the brief trend toward consolidation of the flow
mid to late week under northern stream amplification, split flow
develops again over the weekend into the following week. So, we`re
probably looking at a 2 day shot of Arctic air (Thu/Fri),
followed by some warming over the weekend as Pacific air again
begins to spread downstream across the U.S.

Beginning Tue night, WAA/isentropic ascent spreads eastward into the
area ahead of the approaching storm system over the Northern Plains.
Models indicate much of this largely isentropic ascent driven pcpn
will stay mostly north of the fcst area, deeper into colder air
where saturation is more likely to occur. However, A dusting of
light snow could brush the ne half of the fcst area. Tightening pres
gradient ahead of the sfc low will result in south winds 15 to 25
mph with some gusts at or above 30 mph for some locations along Lake
Superior in downsloping southerly flow. Increased mixing from winds
will also keep temps from falling much...expect mins in the 25 to
30F range.

On Wed, models seem to be coming around to the GFS solution of the
last few days of a deepening sfc low tracking through the Upper
Great Lakes, although there is uncertainty on the exact track. The
12Z GFS and NAM remain farther west with the low track, taking it
across western Lake Superior, while the 00Z ECMWF and 12Z Canadian
have the low tracking over the western U.P. The 12Z UKMET and ECMWF
has a track closer to the central U.P. Given the uncertainty, the
end result will be a period of widespread mixed pcpn across the U.P.
Wed into Wed evening with the better chance of accumulating
synoptic snow west.

Models now in pretty good agreement with CAA and Arctic air moving
in behind the system`s cold fropa Wed evening west and overnight
into Thu morning east. With 850 mb temps of -20 to -25C and the
potential for some enhancement in comma head/deformation of closed
low, will almost certainly need a WSW headline at some point for the
western counties Wed night/early Thu for moderate to possibly heavy
snow, blowing snow and colder wind chills. Flow doesn`t really
become onshore for eastern counties until Thu, but northwest wind
Lake Superior snowbelts for entire U.P. will probably see moderate
snow and blowing snow Thu into Thu night and wind chills will likely
lower blo zero (likely in double digits west half).

LES will begin tapering off from west to east during the day on
Friday as winds back from nw to w and large scale flow becomes more
anticyclonic. Further moderation of the air mass and weak ridging
should generally bring an end to LES this weekend, except for
perhaps some lingering scattered light LES east along the shoreline
in Sat morning. Temps should rebound closer to normal this weekend.

Models more uncertain out to early next week with phasing of system
developing over the mid-Mississippi Valley and tracking through the
Lower Great Lakes, but any potential impacts for our area look to be
minor at this point. There will likely be a brief shot of colder air
and another round of light LES for early next week, before ridging
and associated drier and slightly warmer weather takes hold for mid
next week.
&&

.AVIATION...(For the 00Z TAFS through 00Z Tuesday evening)
Issued at 730 PM EST MON DEC 21 2020

IFR conditions will prevail this evening at IWD and SAW where light
snow continues where upslope northerly flow and abundant low
level moisture prevail. The northerly winds will not as favorable
for lower cigs at CMX. As the weak low pressure system departs,
expect improvement to MVFR overnight. However, confidence in the
timing is low. Cigs should lift to VFR as winds become southerly
Tuesday.

&&

.MARINE...(For the 4 PM Lake Superior forecast issuance)
Issued at 350 PM EST MON DEC 21 2020

As this clipper moves towards Lower Michigan, winds will back
towards the north this evening and overnight. Winds will generally
be between 20-25 kts with some gusts to 30 kts over the west half,
then winds will subside a bit to 15-20 kts as a weak area of high
pressure moves in Tuesday. Next area of low pressure will approach
the Upper Great Lakes late Tuesday into Wednesday and this will turn
the winds more out of the south and increase to gales between 35-40
kts over the east half of the lake. Have gone ahead and issued a
Gale Watch to highlight that. As the low progresses eastward, winds
will turn back to the northwest with gales to 35 kts Thursday
morning through early Friday. Freezing spray, maybe some heavy, is
possible Wednesday into Thursday with much colder air filling in
behind low pressure.
&&

.MQT WATCHES/WARNINGS/ADVISORIES...
Upper Michigan...
None.
Lake Superior...
  Gale Watch from late Tuesday night through Wednesday morning for
     LSZ266-267.

  Gale Watch from late Tuesday night through Wednesday morning for
     LSZ264-265.

Lake Michigan...
  Gale Watch from late Tuesday night through Wednesday evening for
     LMZ221-248-250.

&&

$$

SHORT TERM...JH
LONG TERM...Voss
AVIATION...JLB
MARINE...JH/JV




Area Forecast Discussion

National Weather Service Pocatello ID

 140 PM MST Mon Dec 21 2020

.SHORT TERM (Tonight - Thursday)...
We`ve seen quite a bit of warming across the Magic Valley and
lower Snake Plain with temperatures climbing into the 50s in
Burley and Pocatello. Not everyone is seeing these warmer temps
however as the Upper Snake Plain and eastern Highlands remain on
the chillier side in the lower 40s. Southerly winds out ahead of
an approaching front could allow for additional warming over the
next few hours bringing daytime highs close to record values.
These warmer temps will be very short- lived however as the
aforementioned front will push through the region tomorrow
bringing some light snow, gusty winds and much colder temperatures
for the remainder of the week. Not much has changed with the
forecast thinking for tomorrow, as hi- res models show the front
nearing the Central Mountains during the overnight hours and bring
it through the Snake Plain roughly around, perhaps just before,
daybreak Tuesday. Best chance for light snow accumulations will be
across the higher terrain of the central mountains and eastern
Highlands where 1-4 inches will be possible. Highest totals will
be across the highest terrain, while in the Snake Plain generally
less than an inch. Most recent runs of the hi- res NAM and HRRR
have been trending towards a more broken line of moderate snow as
it nears the Snake Plain so it`s possible our snow may be more
scattered in nature as it moves through the Snake Plain.
Regardless, snowfall rates might be in the 0.5-1" per/hr range
over the short duration snow event. An additional concern will be
the gusty winds associated with the frontal passage. Seems likely
that wind advisory criteria will be met for about a 6-9 hr window
tomorrow so went ahead and issued a wind advisory for much of the
Snake Plain, eastern Magic Valley and Arco Desert given the
likelihood of gusts in the 40-50 mph range. Given the gusty winds,
blowing snow will be a concern as well, mainly across the higher
terrain where more snow (and snowpack) will be present.

Winds will gradually diminish by Tuesday night with colder air
settling in over the region as we head towards the Christmas
holiday. Our area looks dry, but cold, with highs below freezing
Wednesday with lows in the single digits to well below zero in the
normally colder spots. McKaughan

.LONG TERM (Thursday through Monday)...
Will have dry conditions under upper level ridge Thursday and Friday
with temperatures near seasonal normals with generally good travel
conditions expected Christmas Eve and Christmas day.   A Pacific
trof and associated cold front may return snow to the central
mountains Friday night with a chance for widespread light snow on
Saturday and Saturday night with light accumulations of 1 to 4
inches in the mountains and under an inch in the Snake Plain for
early projections. Fairly low confidence on amounts right now.
Models diverge Sunday and Monday with the European having a much
wetter solution than the GFS which is dry. For now have light
mainly eastern highland snow in for Sunday and Monday.
Temperatures will be right around late December normal through
the entire extended period with highs in the 20s mountains and
upper 20s to mid 30s in the Snake Plain. GK


&&

.AVIATION...
Low ceilings continuing at DIJ this afternoon with MVFR at IDA
occasionally.  Should improve later this afternoon.  Other sites
maintain VFR conditions. Main impact will be very strong cold front
moving through Idaho overnight and Tuesday morning. Should be a
burst of snow with the front more prominently at SUN and DIJ and
drop visibility to 3 miles at 11Z at SUN and to 2 miles at 14Z at
DIJ. Kept visibility 4 miles or greater at BYi, PIH and IDA but
increased wind speeds to sustained 25 to 35 knots at BYi, PIH and
IDA by 14Z. Went with 15 to 20 knots at SUN and DIJ. GK

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
Wind Advisory from 5 AM to 5 PM MST Tuesday for IDZ051>055.

&&

$$