Alert archive / West Virginia / Wind Chill Advisories in 2018

Wind Chill Advisory 7, NWS Blacksburg, VA

February 2, 2018Greenbrier County, West Virginia

NWS Blacksburg, VA issued this wind chill advisory at Feb 2, 2018, 3:10 PM EST for Greenbrier County, West Virginia. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued
Feb 2, 2018, 3:10 PM EST (20:10 UTC)
Expired
Feb 3, 2018, 9:00 AM EST
In force
18 hr
Issued by
NWS Blacksburg, VA

County Greenbrier County, WV

The radar

The Roanoke radar (KFCX), 104 km from the middle of the area, began a volume at 20:13 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 8.2 hours before the alert went out and 118 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Roanoke, VA at 12:00Z on 2018-02-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Roanoke, VA at 12:00Z on 2018-02-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -43 square meters per square second.1939587897117136156175Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
967 m above ground
0-6 km bulk shear
124 kt
0-1 km storm-relative helicity
-43 m²/s²
0-3 km storm-relative helicity
-206 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

518 
WWUS41 KRNK 022010
WSWRNK

URGENT - WINTER WEATHER MESSAGE
National Weather Service Blacksburg VA
310 PM EST Fri Feb 2 2018

...Dangerously cold wind chills expected tonight...

.An unseasonably cold air mass will combine with lingering northwest
winds to produce wind chill values between 10 and 15 degrees 
below zero across western Greenbrier County. Coldest wind chills 
will be just before sunrise. Temperatures then begin to warm by 
the early morning hours on Saturday.

WVZ508-031000-
/O.NEW.KRNK.WC.Y.0007.180202T2010Z-180203T1400Z/
Western Greenbrier-
Including the cities of Quinwood, Duo, and Rainelle
310 PM EST Fri Feb 2 2018

...WIND CHILL ADVISORY IN EFFECT UNTIL 9 AM EST SATURDAY...

* WHAT...Dangerously cold wind chills expected. The coldest wind
  chills will be just before sunrise, with wind chills ranging
  between 10 and 15 below zero. Coldest wind chills at elevations
  above 3500 ft in western Greenbrier County.

* WHERE...Western Greenbrier County.

* WHEN...Until 9 AM EST Saturday.

* ADDITIONAL DETAILS...The cold wind chills could result in 
  hypothermia if precautions are not taken.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and the wind will
combine to create low wind chills. Frostbite and hypothermia can
occur if precautions are not taken. Make sure you wear a hat and
gloves.

&&

$$
2 follow-up statements
378 
WWUS41 KRNK 030846
WSWRNK

URGENT - WINTER WEATHER MESSAGE
National Weather Service Blacksburg VA
346 AM EST Sat Feb 3 2018

...Wintry precipitation late tonight into Sunday...

.A complex low pressure system will approach the region from the
west late tonight and pass through the area on Sunday. Widespread
wintry precipitation in the form of snow, sleet and freezing rain
will occur before transitioning to mostly rain during Sunday
afternoon. A few inches of snow can be expected in spots along
with some light icing.

WVZ508-031700-
/O.NEW.KRNK.WW.Y.0007.180204T0900Z-180205T0000Z/
/O.CON.KRNK.WC.Y.0007.000000T0000Z-180203T1400Z/
Western Greenbrier-
Including the cities of Quinwood, Duo, and Rainelle
346 AM EST Sat Feb 3 2018

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM EST THIS
MORNING...
...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO 7 PM EST
SUNDAY...

* WHAT...Mixed precipitation expected. Total snow and sleet 
  accumulations of 3 to 5 inches. A light glaze of ice also 
  possible.

* WHERE...Western Greenbrier County.

* WHEN...From 4 AM until 7 PM EST Sunday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Be 
  prepared for reduced visibilities at times.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory means that periods of snow, sleet or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities, and use caution while
driving. The latest road conditions for the state you are calling
from can be obtained by calling 5 1 1.

A Wind Chill Advisory means that cold air and the wind will
combine to create low wind chills. Frostbite and hypothermia can
occur if precautions are not taken. Make sure you wear a hat and
gloves.

&&

$$

NCZ001-002-018-VAZ007-009-010-012-015-016-WVZ042-031700-
/O.NEW.KRNK.WW.Y.0007.180204T0600Z-180204T1700Z/
Ashe-Alleghany NC-Watauga-Tazewell-Smyth-Bland-Wythe-Grayson-
Carroll-Mercer-
Including the cities of West Jefferson, Sparta, Boone, Tazewell, 
Marion, Bland, Wytheville, Independence, Whitetop, Troutdale, 
Volney, Galax, and Bluefield
346 AM EST Sat Feb 3 2018

...WINTER WEATHER ADVISORY IN EFFECT FROM 1 AM TO NOON EST
SUNDAY...

* WHAT...Mixed precipitation expected. Total snow accumulations of
  1 to 3 inches and ice accumulations of a light glaze are 
  expected.

* WHERE...Portions of southwest Virginia, northwest North 
  Carolina and southeast West Virginia.

* WHEN...From 1 AM to noon EST Sunday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Be 
  prepared for reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory means that periods of snow, sleet or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities, and use caution while
driving. The latest road conditions for the state you are calling
from can be obtained by calling 5 1 1.

&&

$$

NCZ003>006-019-020-VAZ032-043-044-058-031700-
/O.NEW.KRNK.WW.Y.0007.180204T0900Z-180204T1700Z/
Surry-Stokes-Rockingham-Caswell-Wilkes-Yadkin-Patrick-Henry-
Pittsylvania-Halifax-
Including the cities of Dobson, Danbury, Eden, Yanceyville, 
Wilkesboro, Yadkinville, Stuart, Martinsville, Danville, 
and South Boston
346 AM EST Sat Feb 3 2018

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO NOON EST
SUNDAY...

* WHAT...Mixed precipitation expected. Total snow accumulations 
  of up to one inch and ice accumulations of a light glaze are 
  expected.

* WHERE...Portions of south central and southwest Virginia and 
  north central and northwest North Carolina.

* WHEN...From 4 AM to noon EST Sunday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Be 
  prepared for reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory means that periods of snow, sleet or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities, and use caution while
driving. The latest road conditions for the state you are calling
from can be obtained by calling 5 1 1.

&&

$$

VAZ011-013-014-017-018-022-033-031700-
/O.NEW.KRNK.WW.Y.0007.180204T0900Z-180204T1700Z/
Giles-Pulaski-Montgomery-Floyd-Craig-Roanoke-Franklin-
Including the cities of Pearisburg, Radford, Pulaski, Blacksburg,
Floyd, New Castle, Roanoke, Salem, and Rocky Mount
346 AM EST Sat Feb 3 2018

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO NOON EST
SUNDAY...

* WHAT...Mixed precipitation expected. Total snow accumulations 
  of up to 2 inches and ice accumulations of a light glaze are 
  expected.

* WHERE...Portions of southwest and west central Virginia.

* WHEN...From 4 AM to noon EST Sunday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Be 
  prepared for reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory means that periods of snow, sleet or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities, and use caution while
driving. The latest road conditions for the state you are calling
from can be obtained by calling 5 1 1.

&&

$$

VAZ019-020-WVZ043-044-507-031700-
/O.NEW.KRNK.WW.Y.0007.180204T0900Z-180205T0000Z/
Alleghany VA-Bath-Summers-Monroe-Eastern Greenbrier-
Including the cities of Clifton Forge, Covington, Hot Springs, 
Hinton, Hix, Union, Lewisburg, and White Sulphur Springs
346 AM EST Sat Feb 3 2018

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO 7 PM EST
SUNDAY...

* WHAT...Mixed precipitation expected. Total snow accumulations 
  of 2 to 4 inches and ice accumulations of a light glaze are 
  expected.

* WHERE...In Virginia, Alleghany VA and Bath Counties. In West 
  Virginia, Summers, Monroe and Eastern Greenbrier Counties.

* WHEN...From 4 AM to 7 PM EST Sunday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Be 
  prepared for reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory means that periods of snow, sleet or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities, and use caution while
driving. The latest road conditions for the state you are calling
from can be obtained by calling 5 1 1.

&&

$$
288 
WWUS41 KRNK 031402
WSWRNK

URGENT - WINTER WEATHER MESSAGE
National Weather Service Blacksburg VA
902 AM EST Sat Feb 3 2018

...Wintry precipitation late tonight into Sunday...

.A complex low pressure system will approach the region from the
west late tonight and pass through the area on Sunday. Widespread
wintry precipitation in the form of snow, sleet and freezing rain
will occur before transitioning to mostly rain during Sunday
afternoon. A few inches of snow can be expected in spots along
with some light icing.

WVZ508-032215-
/O.EXP.KRNK.WC.Y.0007.000000T0000Z-180203T1400Z/
/O.CON.KRNK.WW.Y.0007.180204T0900Z-180205T0000Z/
Western Greenbrier-
Including the cities of Quinwood, Duo, and Rainelle
902 AM EST Sat Feb 3 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 7 PM
EST SUNDAY...
...WIND CHILL ADVISORY HAS EXPIRED...

* WHAT...Mixed precipitation expected. Total snow and sleet 
  accumulations of 3 to 5 inches. A light glaze of ice also 
  possible.

* WHERE...Western Greenbrier County.

* WHEN...From 4 AM until 7 PM EST Sunday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Be 
  prepared for reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory means that periods of snow, sleet or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities, and use caution while
driving. The latest road conditions for the state you are calling
from can be obtained by calling 5 1 1.

&&

$$

NCZ001-002-018-VAZ007-009-010-012-015-016-WVZ042-032215-
/O.CON.KRNK.WW.Y.0007.180204T0600Z-180204T1700Z/
Ashe-Alleghany NC-Watauga-Tazewell-Smyth-Bland-Wythe-Grayson-
Carroll-Mercer-
Including the cities of West Jefferson, Sparta, Boone, Tazewell, 
Marion, Bland, Wytheville, Independence, Whitetop, Troutdale, 
Volney, Galax, and Bluefield
902 AM EST Sat Feb 3 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 AM TO NOON
EST SUNDAY...

* WHAT...Mixed precipitation expected. Total snow accumulations 
  of 1 to 3 inches and ice accumulations of a light glaze are 
  expected.

* WHERE...Portions of southwest Virginia, northwest North 
  Carolina and southeast West Virginia.

* WHEN...From 1 AM to noon EST Sunday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Be 
  prepared for reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory means that periods of snow, sleet or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities, and use caution while
driving. The latest road conditions for the state you are calling
from can be obtained by calling 5 1 1.

&&

$$

NCZ003>006-019-020-VAZ032-043-044-058-032215-
/O.CON.KRNK.WW.Y.0007.180204T0900Z-180204T1700Z/
Surry-Stokes-Rockingham-Caswell-Wilkes-Yadkin-Patrick-Henry-
Pittsylvania-Halifax-
Including the cities of Dobson, Danbury, Eden, Yanceyville, 
Wilkesboro, Yadkinville, Stuart, Martinsville, Danville, 
and South Boston
902 AM EST Sat Feb 3 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO NOON
EST SUNDAY...

* WHAT...Mixed precipitation expected. Total snow accumulations 
  of up to one inch and ice accumulations of a light glaze are 
  expected.

* WHERE...Portions of south central and southwest Virginia and 
  north central and northwest North Carolina.

* WHEN...From 4 AM to noon EST Sunday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Be 
  prepared for reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory means that periods of snow, sleet or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities, and use caution while
driving. The latest road conditions for the state you are calling
from can be obtained by calling 5 1 1.

&&

$$

VAZ011-013-014-017-018-022-033-032215-
/O.CON.KRNK.WW.Y.0007.180204T0900Z-180204T1700Z/
Giles-Pulaski-Montgomery-Floyd-Craig-Roanoke-Franklin-
Including the cities of Pearisburg, Radford, Pulaski, Blacksburg,
Floyd, New Castle, Roanoke, Salem, and Rocky Mount
902 AM EST Sat Feb 3 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO NOON
EST SUNDAY...

* WHAT...Mixed precipitation expected. Total snow accumulations 
  of up to 2 inches and ice accumulations of a light glaze are 
  expected.

* WHERE...Portions of southwest and west central Virginia.

* WHEN...From 4 AM to noon EST Sunday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Be 
  prepared for reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory means that periods of snow, sleet or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities, and use caution while
driving. The latest road conditions for the state you are calling
from can be obtained by calling 5 1 1.

&&

$$

VAZ019-020-WVZ043-044-507-032215-
/O.CON.KRNK.WW.Y.0007.180204T0900Z-180205T0000Z/
Alleghany VA-Bath-Summers-Monroe-Eastern Greenbrier-
Including the cities of Clifton Forge, Covington, Hot Springs, 
Hinton, Hix, Union, Lewisburg, and White Sulphur Springs
902 AM EST Sat Feb 3 2018

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 7 PM
EST SUNDAY...

* WHAT...Mixed precipitation expected. Total snow accumulations 
  of 2 to 4 inches and ice accumulations of a light glaze are 
  expected.

* WHERE...In Virginia, Alleghany VA and Bath Counties. In West 
  Virginia, Summers, Monroe and Eastern Greenbrier Counties.

* WHEN...From 4 AM to 7 PM EST Sunday.

* ADDITIONAL DETAILS...Plan on slippery road conditions. Be 
  prepared for reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory means that periods of snow, sleet or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities, and use caution while
driving. The latest road conditions for the state you are calling
from can be obtained by calling 5 1 1.

&&

$$

What forecasters said that day

The local office's own words before this wind chill advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Blacksburg, VA wrote its last area forecast discussion before this wind chill advisory went out at Feb 2, 3:09 PM EST, 1 minute earlier.

Area forecast discussion, Feb 2, 3:09 PM EST, 1 minute before
Area Forecast Discussion
National Weather Service Blacksburg VA
309 PM EST Fri Feb 2 2018

.SYNOPSIS...
Cold, dry high pressure will build overhead tonight. It will lead to
a chilly night tonight with clear skies and light winds. Slow
moderation expected Saturday. A complex storm system then moves
across our area on Sunday, bringing a widespread accumulating snow
and wintry mix event to the region. High pressure then follows this
system on Monday with a warming trend for Tuesday.

&&

.NEAR TERM /THROUGH SATURDAY/...
As of 155 PM EST Friday...

A cold, blustery afternoon across the central Appalachians and
Piedmont region today, with stratocu and intervals convectively-
driven snow showers early this afternoon mainly southwest of
Blacksburg. Northwesterly gusts this afternoon have been as much as
35 mph producing below zero to single digit wind chills in the
western mountains. More sunshine, albeit ineffective enough to
significantly raise temperatures, was taking place across the
Piedmont with temperatures here in the 30s.

Main theme for tonight will be the very cold ambient temperatures.
1039 mb high pressure now centered over the Ohio Valley will begin
to build over the region mainly after midnight. Increasing
subsidence expected late this afternoon into early evening will help
to dry up both clouds and leftover snow showers, and will also help
to diminish northwesterly wind speeds and gusts. By midnight, winds
should be going light and variable and to calm overnight. 850 mb
temperatures do tend to moderate by some 6-8 degrees to values
around -8 to -12 C by 12z Saturday. However 12z forecast models
indicate about as close to an ideal radiational cooling night as one
could ask for, given very dry high pressure settling nearly
overhead. Could be some orographically induced cirrus clouds
indicated by the GFS that could disturb otherwise strong radiational
cooling in the Piedmont and foothills, but that may be it in terms
of cloud cover. There's also enough of a snowpack in southeast West
Virginia - as much as 8 inches in places - to push low temperatures
tonight into the single digits. Lows from the New River Valley/NW NC
mountains should be in the low to mid teens, and into the upper
teens in the foothills and Piedmont.

Aforementioned high pressure then begins to advance eastward into
the eastern VA/NC coastal area. Ridging left behind by the high will
continue to allow for dry conditions on Saturday. Modest southerly
low-level flow will afford greater warm thermal advection to take
place, and in turn we should also see at least lowering mid to high
clouds from southwest to northwest. Greatest clouds are expected by
early evening. Kept highs mainly in the 30s to low 40s, given the
likely colder start and steady increase in clouds during the day and
850 mb temperatures further moderating to around -2 to -6C.

&&

.SHORT TERM /SATURDAY NIGHT THROUGH MONDAY/...
As of 230 PM EST Friday...

There are multiple challenges for the Saturday night through Sunday
night time frame. In short, two areas of low pressure and one cold
front will interact in various degrees to bring a wintry mix to our
region. That is the simple summary. Where there continues to be
notable differences in the model guidance is amount of moisture that
will impact our area, and the specifics low level thermal profile
within the warm sector of the system over our region prior to the
cold frontal passage. Where there is decent agreement is the system
will not be all snow for the vast majority of the area. A warm nose
aloft to some degree will be in place while the surface and boundary
layer temperatures are still sub-freezing, especially over the
southeastern sections of the region. This nose will migrate north
during the course of Sunday, allowing for just about every location
to at least have a few hours of a wintry mix, after initially being
pure snow. Eventually, enough warming will take place for all rain,
prior to the cold frontal passage later Sunday afternoon and evening.

However, once the cold front crosses the region, precipitation in
the form of snow showers will be confined to the preferred upslope
regions of southeast West Virginia, south into the Northern
Mountains of North Carolina.

Snowfall amounts will be tricky based upon just how much moisture is
available, and how much of that precipitation falls as sleet rather
than snow. Also, convection along and near the southern stream low
may develop near the coast of the Carolinas.  If this initiates, it
would potentially mitigate the amount of available low level
moisture to advect into our region.

Taking all of this into account, snow/sleet amounts along and west
of the crest of the Blue Ridge are forecast to average one to two
inches. Higher amounts averaging two to three inches are more
probable in areas near and north of Interstate 64 in WV and VA, west
of Interstate 81. Also, some isolated two to three amounts are
possible within the higher peaks of the Northern Mountains of North
Carolina. Western Greenbrier County in WV will likely experience the
greatest amounts since it will receive both snowfall within the warm
sector of the system, with the least chance of period of a wintry
mix, and then additional snowfall from the northwest flow upslope
activity in the wake of the cold front. Snowfall totals here around
five inches are probable. Areas east of the crest of the Blue Ridge
will more likely experience less than an inch of snow/sleet, but
have a better chance of receiving a few hundredths of an inch of
freezing rain.

Sunday night, winds will become blustery with gusts of at least 25
to 35 mph common, especially at the higher elevations.

By Monday, only some isolated snow showers/flurries will continue
across western Greenbrier County through the morning. By the
afternoon, the northwest winds weaken and back with the arrival of
our next area of high pressure.

Temperatures during this portion of the forecast will average a
couple of degrees plus or minus of normal.

&&

.LONG TERM /MONDAY NIGHT THROUGH FRIDAY/...
As of 1030 AM EST Friday...

Monday night into Tuesday, the center of an area of high pressure
will progress eastward to off the Delmarva Peninsula while a series
of disturbances progress east through central CONUS. One of these
will be located with in the northern stream jet and pass through
Pennsylvania by Tuesday afternoon. The other feature will be
associated with the southern stream jet, start the day near Dallas-
Fort Worth, and be over the Arklatex region by the afternoon.
However in its progression, plenty of western Gulf of Mexico
moisture will race north ahead of it into parts of the Mississippi,
Ohio, and Tennessee River basins. For our region, this transition in
systems will yield primarily an increase in cloud cover from west to
east. Precipitation will be limited to Tuesday afternoon across parts
of southeast West Virginia in the form of patchy light rain and/or
snow.

The southern branch system will continue to evolve into the main
weather maker heading into Wednesday as its parent upper trough
deepens across the Mississippi River Valley. The associated surface
cold front will move across the area Wednesday and have available to
it the southern stream moisture advected north on the east side of
the Gulf Coast shortwave trough. Forecast low level temperature
profiles suggest above 0C values, so we are expecting a rain event
during the day for the entire forecast area.

Wednesday night on the backside of the departing cold front, look
for increasing northwest winds that will yield some upslope
rain/snow showers across southeast West Virginia, south into the
Northern Mountains of North Carolina. This same northwest flow will
yield subsidence east of the crest of the Blue Ridge with an end to
the precipitation and cloud cover beginning to dissipate.

By Thursday, high pressure will be building into the area and be
centered overhead by late Thursday night. This will bring another
period of drier weather and decreased cloud cover that will continue
into early Friday. By late Friday, cloud cover will again be on the
increase as yet another system starts to develop across central
CONUS and its associated cloud cover advects our direction.

Temperatures during this portion of the forecast will start near
normal and trend to about ten degrees above normal by Wednesday.
Reading cool again through Friday with values back to near normal.

&&

.AVIATION /20Z FRIDAY THROUGH WEDNESDAY/...
As of 1227 PM EST Friday...

Biggest aviation operational impact west of the Blue Ridge and
mainly through 00z Saturday. Intervals of MVFR to at times LIFR
visibility light to moderate snow showers continue to prevail
from Bluefield to the western extent of the Blue Ridge, to areas
north of Boone. Visibilities will likely continue to oscillate
between P6SM and as low as one- half mile in these bands through
21z, though in terms of TAFs these snow showers are mostly
affecting just Bluefield. Have hit Bluefield the hardest with a
prevailing MVFR snow shower with tempo 1SM through 21z. Will
indicate prevailing P6SM -SHSN at Blacksburg and Lewisburg with
VCSH at Roanoke to address intervals of snow showers. Aside from
snow showers, ceilings/visbys are a mix of VFR/MVFR with BKN-
OVC stratocu northwest of the Blue Ridge spine. MVFR stratocu
should trend to VFR SKC by early evening, taking longest to
occur in southeast West Virginia. Northwest winds still continue
10-16 kts gusts as much as 30 kts; would expect wind gusts to
slowly abate but not any sooner than 22z. Will also encounter
choppy conditions around the Blue Ridge/western Appalachians
through 00z.

High pressure then finally settles in with northwest winds
slackening to light/calm and skies going SKC.

Into Saturday, looking at VFR conditions. Steady stream of SCT-
BKN mid to high level clouds builds above retreating surface
high pressure. The retreating high will allow for a light
southerly component to the wind, around 4-8 kts.

Extended Aviation Discussion...

Ceilings then continue to steadily lower Saturday night and may
at times approach MVFR levels along the southern Blue Ridge into
the pre-dawn hours. A complex storm system, will bring an
extended period of sub- VFR ceilings and visibilities and the
potential for widespread winter precipitation Sunday into
Monday.

A brief return to VFR Monday night-Tuesday but another storm
system will impact the Mid-Atlantic for mid-week.

&&

.RNK WATCHES/WARNINGS/ADVISORIES...
VA...None.
NC...None.
WV...Wind Chill Advisory until 9 AM EST Saturday for WVZ508.

&&

SYNOPSIS...AL
NEAR TERM...AL
SHORT TERM...DS
LONG TERM...DS
AVIATION...AL
Hazardous weather outlook, Feb 2, 9:22 AM EST, 5 hours 48 minutes before
Hazardous Weather Outlook
National Weather Service Blacksburg VA
922 AM EST Fri Feb 2 2018

NCZ001>003-018-019-VAZ007-009>020-022>024-032>035-WVZ042>044-507-508-
031430-
Ashe-Alleghany NC-Surry-Watauga-Wilkes-Tazewell-Smyth-Bland-Giles-
Wythe-Pulaski-Montgomery-Grayson-Carroll-Floyd-Craig-Alleghany VA-
Bath-Roanoke-Botetourt-Rockbridge-Patrick-Franklin-Bedford-Amherst-
Mercer-Summers-Monroe-Eastern Greenbrier-Western Greenbrier-
922 AM EST Fri Feb 2 2018

This Hazardous Weather Outlook is for north central North Carolina,
northwest North Carolina, central Virginia, south central Virginia,
southwest Virginia, west central Virginia and southeast West
Virginia.

.DAY ONE...Today and tonight.

There is a low probability for widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Winter precipitation, primarily in the form of snow and sleet is
expected Sunday. Significant snow accumulations are possible. Some
freezing rain is also possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

NCZ004>006-020-VAZ043>047-058-059-031430-
Stokes-Rockingham-Caswell-Yadkin-Henry-Pittsylvania-Campbell-
Appomattox-Buckingham-Halifax-Charlotte-
922 AM EST Fri Feb 2 2018

This Hazardous Weather Outlook is for north central North Carolina,
northwest North Carolina, central Virginia and south central
Virginia.

.DAY ONE...Today and tonight.

There is a low probability for widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Winter precipitation remains possible Sunday. Snow, sleet, and
freezing rain will all be possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Local storm report, Feb 2, 10:17 AM EST, 4 hours 53 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1017 AM EST FRI FEB 02 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0952 AM     SNOW             TAZEWELL                37.12N  81.52W
02/02/2018  E5.5 INCH        TAZEWELL           VA   BROADCAST MEDIA

            WVVA VIEWER REPORT

&&

EVENT NUMBER RNK1800317

LOCONTO
Local storm report, Feb 2, 10:18 AM EST, 4 hours 52 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1018 AM EST FRI FEB 02 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0953 AM     SNOW             COALDALE                37.35N  81.35W
02/02/2018  E5.5 INCH        MERCER             WV   BROADCAST MEDIA

            WVVA VIEWER REPORT

&&

EVENT NUMBER RNK1800318

LOCONTO
Local storm report, Feb 2, 10:20 AM EST, 4 hours 50 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1020 AM EST FRI FEB 02 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0956 AM     SNOW             3 E MATOAKA             37.42N  81.20W
02/02/2018  E5.0 INCH        MERCER             WV   BROADCAST MEDIA

            WVVA VIEWER REPORT NEAR LASHMEET WV.

&&

EVENT NUMBER RNK1800319

LOCONTO
Local storm report, Feb 2, 10:43 AM EST, 4 hours 27 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1043 AM EST FRI FEB 02 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1028 AM     SNOW             SPANISHBURG             37.45N  81.12W
02/02/2018  E4.8 INCH        MERCER             WV   BROADCAST MEDIA

            WVVA VIEWER REPORT.

&&

EVENT NUMBER RNK1800320

LOCONTO
Local storm report, Feb 2, 10:45 AM EST, 4 hours 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1045 AM EST FRI FEB 02 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1039 AM     SNOW             BLUEFIELD               37.27N  81.22W
02/02/2018  M5.2 INCH        MERCER             WV   BROADCAST MEDIA

            WVVA TV STATION.

&&

EVENT NUMBER RNK1800321

LOCONTO
Special weather statement, Feb 2, 11:46 AM EST, 3 hours 24 minutes before
Special Weather Statement
National Weather Service Blacksburg VA
1146 AM EST Fri Feb 2 2018

NCZ001-002-018-VAZ007-009-010-012-013-015>017-021900-
Ashe-Alleghany NC-Watauga-Tazewell-Smyth-Bland-Wythe-Pulaski-
Grayson-Carroll-Floyd-
Including the cities of West Jefferson, Sparta, Boone, Tazewell,
Marion, Bland, Wytheville, Radford, Pulaski, Independence,
Whitetop, Troutdale, Volney, Galax, and Floyd
1146 AM EST Fri Feb 2 2018

...Occasional snow showers with reduced visibility continue into
early afternoon...

Narrow bands of snow will continue to produce reduced
visibilities, as low as one half mile at times. Snow accumulations
of up to one inch will create slick spots on roadways, including
Interstate 81 west of Radford Virginia, and Interstate 77 from
Flat Top through Bland and near Fancy Gap. The higher elevations
of Tazewell and Smyth, including Grayson Highlands, and into the
High Country of North Carolina may also experience an additional
inch of snow.

The most persistent snowbands will begin to shift out of Floyd
and Pulaski County by noon, with intervals of snow showers through
early this afternoon becoming more concentrated from Mercer to
Carroll County south and west.

Travelers should use extra caution by slowing down and leaving
extra space between vehicles, and avoiding sudden lane changes on
the interstate. Be sure to allow extra time to reach your
destination.

Nearby

Wind Chill Advisories in West Virginia, 2018Every wind chill advisory in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.