Wind Advisory 5, NWS Greenville-Spartanburg, SC

909 
WWUS72 KGSP 130728
NPWGSP

URGENT - WEATHER MESSAGE
National Weather Service Greenville-Spartanburg SC
328 AM EDT Tue Mar 13 2018

...VERY WINDY CONDITIONS EXPECTED ACROSS BUNCOMBE COUNTY
EARLY THIS MORNING...

.Strong northwest winds continuing across the North Carolina 
mountains, and channeling in the French Broad River Valley, are 
bringing very gusty winds to the Asheville area. The winds should 
diminish slightly during the day on Tuesday.

NCZ053-131200-
/O.CON.KGSP.WI.Y.0005.000000T0000Z-180313T1200Z/
Buncombe-
Including the city of Asheville
328 AM EDT Tue Mar 13 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING...

* LOCATIONS...Buncombe County, including the Asheville area.

* HAZARDS...Very windy conditions.

* TIMING...Strong winds ongoing early this morning will diminish
  slightly toward daybreak.

* WINDS...Northwest 15 to 25 mph with gusts up to 40 to 50 mph at
  times.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 35 mph are expected. Winds
this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

Stay tuned to NOAA Weather Radio or your favorite source of
weather information for the latest updates. Additional details
can be found at www.weather.gov/gsp.

&&

$$

Area Forecast Discussion
National Weather Service Greenville-Spartanburg SC
828 PM EDT Mon Mar 12 2018

.SYNOPSIS...
Colder and drier high pressure will build to our west and persist
through midweek. A period of mountain snow showers will
persist along the Tennessee border into mid week. Expect
a warming trend late this week to near normal temperatures.
A front and low pressure will bring showers over the weekend
and early next week.

&&

.NEAR TERM /THROUGH TUESDAY/...
As of 810 pm, all the piedmont precipitation has slipped east of the
area as the upper/surface low pressure systems move away. IR imagery
is showing some minus 15 C air moving back into the western NC
mountains this evening, and snow showers are expected to pick up
along the Tennessee line and intensify overnight. The numerical
models agree fairly well that accumulations in the 1 to 2 inch
range, with some ridgetop values of 3 to 4 inches around the
Smokies, appear most likely overnight. In addition, black ice will
likely be a problem as temperatures fall through the 20s in these
areas. The hazard products have been rearranged to feature a Winter
Weather Advisory in the affected upslope areas, with a Special
Weather Statement now in place for areas along the I-40 corridor.

The NW flow pressure gradient is also increasing in the wake of the
system and some gusts near advisory (40 to 45 mph) will be featured
in the Advisory areas along the higher terrain.

Otherwise, northwest flow snow showers will diminish through the
morning hours, giving way to mostly sunny skies in all locations by
Tue afternoon. Temps will remain quite a bit below climo, around 10
degrees below in most areas.

&&

.SHORT TERM /TUESDAY NIGHT THROUGH WEDNESDAY NIGHT/...
As of 200 PM Mon: From Tuesday night through early Thursday we
will continue to see the effects of a deep upper trough over the
East, and cold high pressure accordingly centered over the Gulf
states. Northwest flow will continue across the area during this
time. Min temps will be around 10 degrees below normal, with maxes
more like 15 degrees below normal.

1000-850mb RH will increase late Tuesday on the upslope side of
the Appalachians, so another snow event is expected to develop
there Tuesday night. Conditions look most ideal around dawn
Wednesday, when moisture is deepest and lapse rates will be
enhanced by a passing shortwave, producing a wee amount of SBCAPE
along the ridges. Current expectations are for 1 to 2 inches of
new accumulation between 00z-18z Wed, which is below advisory
criteria. However, gradient winds will be moderately strong and
high-elevation wind chills are expected to dip below zero. We can't
rule out a Winter Weather Advisory for the combined impacts along
the TN/NC border. The moisture diminishes toward midday Wednesday
which looks to bring accumulating snowfall to an end.

The upper low will begin to depart to the east by early Thursday,
but brisk winds will continue. Temperatures won't be quite as
cold Thursday morning, and subzero wind chills are not expected at
those high elevations. Continued height rises Thursday will permit
temperatures to rise back close to normal. We will remain under a
moderately tight gradient flow Thursday, and during diurnal mixing
frequent gusts are likely in all zones.

&&

.LONG TERM /THURSDAY THROUGH MONDAY/...
As of 250 PM EDT Monday: After a fairly dry period during the middle
part of the week, the medium range forecast period begins Thursday
night as latest guidance continues to highlight a developing
unsettled weather pattern for the end of the week through into the
weekend.

With sfc high pressure situated across the GOM/FL panhandle Thursday
night, latest guidance places an upper ridge across the central
plains in between a low pressure system well off to the northeast
and another system coming out of the Rockies. This wave moving out
of the Rockies is progged to develop into a sfc low across the
central plains with the aid of an upper level disturbance as the
aforementioned upper ridge to the east continues to propagate
eastward. Anticipate a warm front associated with this system to
extend eastward, remaining just north of the FA through the early
part of the weekend, placing our area in the warm sector. Tapping
into GOM moisture with the gradual return of SW flow, this along
with isentropic lift will increase shower activity beginning as
early as Friday morning, mainly across the TN border. Would not
entirely rule out an initial rain/snow mix across the northern
mountains early Friday morning, before warming temperatures allow
for a transition to all rain as coverage expands eastward. Attm, do
not anticipate any snow accumulations. Saturday night into Sunday,
upper troughing across the NE will push the warm front back through
the FA as a back door cold front, allowing for a lull in the precip
during the day on Saturday as Canadian sfc high pressure builds in
behind the boundary. As the sfc high moves off the Carolina coast
Sunday, unsettled weather returns for the end of the weekend, and
per latest guidance could potentially continue into the early part
of next week, just beyond the forecast period. Temperatures
throughout the forecast period are expected to remain at or just
above normal.

&&

.AVIATION /01Z TUESDAY THROUGH SATURDAY/...
AT KCLT and elsewhere: Clouds have rapidly scattered east of the
mountains. VFR cigs may linger at KAVL in improving NW flow moisture
overnight. KAVL gusts should continue through the nighttime hours,
but lighter NW flow is expected across the foothill and piedmont
sites. Winds may come up briefly east of the mountains with mixing,
but gusts will be limited as winds toggle westerly in weak lee
troughing. VFR conditions will continue through the end of the
period.

Outlook: Northwest flow moisture could keep some clouds in at KAVL
from time to time through mid week. Otherwise, VFR conditions are
expected to persist through the end of the work week.

Confidence Table...

            00-06Z        06-12Z        12-18Z        18-00Z
KCLT       High 100%     High 100%     High 100%     High 100%
KGSP       High 100%     High 100%     High 100%     High 100%
KAVL       High  99%     High  99%     High 100%     High 100%
KHKY       High 100%     High 100%     High 100%     High 100%
KGMU       High 100%     High 100%     High 100%     High 100%
KAND       High 100%     High 100%     High 100%     High 100%

The percentage reflects the number of guidance members agreeing
with the scheduled TAF issuance flight rule category. Complete hourly
experimental aviation forecast consistency tables and ensemble forecasts
are available at the following link:

www.weather.gov/gsp/aviation

&&

.GSP WATCHES/WARNINGS/ADVISORIES...
GA...None.
NC...Winter Weather Advisory until 10 AM EDT Tuesday for NCZ033-
     048>052.
SC...None.

&&

SYNOPSIS...DEO
NEAR TERM...HG
SHORT TERM...Wimberley
LONG TERM...SGL
AVIATION...HG

Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
804 PM EDT Mon Mar 12 2018

NCZ033-048>050-140015-
Avery-Madison-Yancey-Mitchell-
804 PM EDT Mon Mar 12 2018

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 AM EDT TUESDAY...

This Hazardous Weather Outlook is for the northern mountains of
western North Carolina.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Weather Advisory.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

..Tuesday...No hazardous weather is expected at this time.
..Wednesday...Winter weather possible. Light snowfall, strong winds,
and bitterly cold wind chills may develop early Wednesday morning.
..Thursday...No hazardous weather is expected at this time.
..Friday...No hazardous weather is expected at this time.
..Saturday...No hazardous weather is expected at this time.
..Sunday...No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotters are asked to relay any snow accumulations to the National
Weather Service.

NCZ035>037-053-056-057-501>506-140015-
Alexander-Iredell-Davie-Buncombe-Catawba-Rowan-Caldwell Mountains-
Greater Caldwell-Burke Mountains-Greater Burke-McDowell Mountains-
Eastern McDowell-
804 PM EDT Mon Mar 12 2018

This Hazardous Weather Outlook is for the Interstate 40 corridor in
western North Carolina.

.DAY ONE...Tonight.

Patchy black ice may develop overnight into Tuesday morning. Please
see the latest Special Weather Statement for details.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

..Tuesday...No hazardous weather is expected at this time.
..Wednesday...No hazardous weather is expected at this time.
..Thursday...No hazardous weather is expected at this time.
..Friday...No hazardous weather is expected at this time.
..Saturday...No hazardous weather is expected at this time.
..Sunday...No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

None.

GAZ010-017-018-026-028-029-NCZ058-059-062>065-068>072-082-507>510-
SCZ001>014-019-140015-
Rabun-Habersham-Stephens-Franklin-Hart-Elbert-Graham-
Northern Jackson-Macon-Southern Jackson-Transylvania-Henderson-
Cleveland-Lincoln-Gaston-Mecklenburg-Cabarrus-Union-
Rutherford Mountains-Greater Rutherford-Polk Mountains-Eastern Polk-
Oconee Mountains-Pickens Mountains-Greenville Mountains-
Greater Oconee-Greater Pickens-Greater Greenville-Spartanburg-
Cherokee-York-Anderson-Abbeville-Laurens-Chester-Greenwood-
804 PM EDT Mon Mar 12 2018

This Hazardous Weather Outlook is for northeast Georgia, piedmont
North Carolina, the southern mountains of western North Carolina,
and Upstate South Carolina.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

..Tuesday...No hazardous weather is expected at this time.
..Wednesday...No hazardous weather is expected at this time.
..Thursday...No hazardous weather is expected at this time.
..Friday...No hazardous weather is expected at this time.
..Saturday...No hazardous weather is expected at this time.
..Sunday...No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

None.

NCZ051-052-140015-
Swain-Haywood-
804 PM EDT Mon Mar 12 2018

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 AM EDT TUESDAY ABOVE
3500 FEET...

This Hazardous Weather Outlook is for Swain and Haywood Counties in
western North Carolina.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Winter Weather Advisory.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

..Tuesday...No hazardous weather is expected at this time.
..Wednesday...Winter weather possible. Light snowfall, strong winds,
and bitterly cold wind chills may develop early Wednesday morning.
..Thursday...No hazardous weather is expected at this time.
..Friday...No hazardous weather is expected at this time.
..Saturday...No hazardous weather is expected at this time.
..Sunday...No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotters are asked to relay any snow accumulations to the National
Weather Service.

HG

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
409 PM EDT MON MAR 12 2018

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

0300 PM     SNOW             CONCORD                 35.41N  80.59W
03/12/2018  M0.2 INCH        CABARRUS           NC   CO-OP OBSERVER

&&

CSH

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
526 PM EDT Mon Mar 12 2018

NCZ035>037-051>053-056>059-501>506-131200-
Alexander-Iredell-Davie-Swain-Haywood-Buncombe-Catawba-Rowan-
Graham-Northern Jackson-Caldwell Mountains-Greater Caldwell-
Burke Mountains-Greater Burke-McDowell Mountains-Eastern McDowell-
Including the cities of Bethlehem, Ellendale, Millersville,
Taylorsville, Hiddenite, Stony Point, Statesville, Mooresville,
Farmington, Fork Church, Mocksville, Advance, Newfound Gap,
Alarka, Almond, Bryson City, Luada, Smokemont, Wesser,
Waynesville, Waterville, Canton, Cruso, Cove Creek,
Lake Junaluska, Asheville, Hickory, Newton, St. Stephens,
Salisbury, Robbinsville, Stecoah, Cullowhee, Tuckasegee, Sylva,
Patterson, Kings Creek, Lenoir, Sawmills, Granite Falls,
Jonas Ridge, Morganton, Pleasant Grove, Valdese, Ashford,
Sugar Hill, Woodlawn, Old Fort, Marion, Nebo, Dysartsville, Fero,
and Glenwood
526 PM EDT Mon Mar 12 2018

...PATCHY BLACK ICE EXPECTED TONIGHT ACROSS MUCH OF THE NORTH
CAROLINA MOUNTAINS AND THE INTERSTATE 40 CORRIDOR THROUGH THE
PIEDMONT...

The rain and snow showers that affected the region today have left
many area roadways quite wet. With temperatures expected to fall
into the upper 20s to around 30 degrees overnight, patchy black
ice may form. Slippery roadways, especially bridges and
overpasses, could make for tricky driving conditions early
Tuesday.

Use caution if driving overnight or early Tuesday morning. Allow
extra time to reach your destination and be on the lookout for
patches of black ice.

HG