Alert archive / North Carolina / Winter Storm Warnings in 2017

Winter Storm Warning 2, NWS Raleigh, NC

December 8, 20179 counties in North Carolina

NWS Raleigh, NC issued this winter storm warning at Dec 8, 2017, 2:48 PM EST for 9 counties in North Carolina. It was in force for 25 hr. 45 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Dec 8, 2017, 2:48 PM EST (19:48 UTC)
Expired
Dec 9, 2017, 3:24 PM EST
In force
25 hr
Issued by
NWS Raleigh, NC

Counties Alamance County, NC, Davidson County, NC, Forsyth County, NC, Granville County, NC, Guilford County, NC, Orange County, NC, Person County, NC, Randolph County, NC, Vance County, NC

The radar

The Raleigh/Durham radar (KRAX), 95 km from the middle of the area, began a volume at 19:52 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.

What was reported inside it

TimeReportWhereRemark
Dec 8, 3:17 PM ESTSNOW 0.12 W Schley, NCLIGHT ACCUMULATION BEGINNING TO SHOW UP ON GRASSY SURFACES.
Dec 8, 3:21 PM ESTSNOW 0.23 W Pfafftown, NCDUSTING OF SNOW ON GROUND WITH ROADS BEGINNING TO GET COVERED.
Dec 8, 3:36 PM ESTSNOW 11 Nw Winston-Salem, NCSNOWFALL REPORTED AT COLLESEUM DRIVE, WINSTON SALEM. MOSTLY IN THE GRASS WITH SOME ACCUMULATION IN THE PARKING LOTS NOW.
Dec 8, 4:01 PM ESTSNOW 12 Ese Greensboro, NCANYWHERE FROM A HALF INCH TO AN INCH REPORTED ACROSS GREENSBORO, NC. SLUSH BEGINNING TO FORM ON ELEVATED ROADWAYS AND OVERPASSES.
Dec 8, 4:06 PM ESTSNOW 14 N Roxboro, NC1 INCH OF SNOW ON THE GROUND, AND SNOW CONTINUES TO FALL. SECONDARY ROADS ARE SNOW COVERED.
Dec 8, 4:30 PM ESTSNOW 0.1Hillsborough, NCREPORTED AT HILLSBOROUGH, NC.
Dec 8, 4:30 PM ESTSNOW 0.5Roxboro, NCTRAINED SPOTTER REPORTED SNOW/SLEET MIXTURE IN BURLINGTON. ESTIMATED ABOUT 1/2 INCH OF SNOW ON THE GROUND, COVERING GRASSY AREAS AND SLUSH BEGINNING TO ACCUMULATE ON THE ROADS.
Dec 8, 4:34 PM ESTSNOW 1Roxboro, NCREPORTED AT ROXBORO, NC.
Dec 8, 4:52 PM ESTSNOW 0.54 W Schley, NCSNOW ACCUMULATION SO FAR TODAY OF APPROXIMATELY 0.5 ON THE GROUND WITH 1.0 MEASURED ON ELEVATED SURFACES. SNOW JUST TRANSITIONED TO ALL SLEET.
Dec 8, 5:02 PM ESTSNOW 1.65 Ese Colfax, NCOBSERVED AT THE PIEDMONT TRIAD INTERNATIONAL AIRPORT.
Dec 8, 5:33 PM ESTSNOW 1.64 N Roxboro, NC1.1 INCHES OF SNOW REPORTED, WITH 0.5 INCHES OF SLEET ON TOP. NUMEROUS (50+) ACCIDENTS REPORTED ACROSS THE COUNTY. SECONDARY ROADS SNOW/SLEET COVERED.
Dec 8, 5:58 PM ESTSNOW 11 E Hillsborough, NC
Dec 8, 6:11 PM ESTSNOW 2Summerfield, NCREPORTED AT SUMMERFIELD, NC.
Dec 8, 6:29 PM ESTSNOW 11 E Hillsborough, NC
Dec 8, 7:00 PM ESTSNOW 12 Nne Chapel Hill, NCMAX DEPTH 1.0 INCH AT 700 PM ON 12/08...MOSTLY MELTED BY 900 PM. 1.20 INCHES OF 24 HOUR LIQUID EQUIVALENT AT 800 AM ON 12/09.
Dec 8, 7:19 PM ESTSNOW 31 Ene Henderson, NCREPORTED AT HENDERSON, NC.
Dec 8, 7:23 PM ESTSNOW 31 E Winston-Salem, NCREPORTED AT WINSTON SALEM, NC.
Dec 8, 7:42 PM ESTSNOW 13 E Mebane, NC
Dec 8, 7:45 PM ESTSNOW 14 Wsw Rougemont, NCSNOW ESTIMATED. NUMEROUS CARS REPORTED IN DITCHES, ESPECIALLY ALONG ROUTE 57.
Dec 8, 7:59 PM ESTSNOW 0.11 W Ulah, NCMOST FELL AS RAIN OR SLEET. TRACE OF SNOW REMAINS ON ELEVATED SURFACES AND ON GRASS.
Dec 8, 8:00 PM ESTSNOW 3.13 W Pfafftown, NCREPORTED AT PFAFFTOWN.
Dec 8, 8:10 PM ESTSNOW 0.52 Ene Burlington, NC
Dec 8, 8:44 PM ESTSNOW 4Rural Hall, NCREPORTED AT RURAL HALL.
Dec 8, 8:56 PM ESTSNOW 0.92 Ssw High Point, NCREPORTED AT HIGH POINT, NC.
Dec 8, 9:00 PM ESTSNOW 11 Wsw Burlington, NC
Dec 8, 9:25 PM ESTSNOW 44 W Pfafftown, NC
Dec 8, 9:33 PM ESTSNOW 2.44 N Roxboro, NCSNOW/SLEET ACCUMULATION. HAS SINCE BEGUN TO MELT AND COMPACT.
Dec 8, 9:34 PM ESTFREEZING RAIN 0.014 N Roxboro, NCICE ACCRETION ON METAL DECK AND TREE BRANCHES.
Dec 8, 9:49 PM ESTSNOW 2.95 Nw Monticello, NC
Dec 8, 9:50 PM ESTSNOW 12 Wsw Swepsonville, NC
Dec 8, 9:51 PM ESTSNOW 34 Nne Colfax, NC
Dec 8, 10:10 PM ESTSNOW 44 Ene Rural Hall, NC
Dec 8, 11:02 PM ESTSNOW 4.32 Wsw Stanleyville, NC
Dec 9, 12:22 AM ESTSNOW 5Stanleyville, NC
Dec 9, 12:30 AM ESTSNOW 5.52 Nw Rural Hall, NC
Dec 9, 1:45 AM ESTSNOW 43 E Stanleyville, NC
Dec 9, 8:25 AM ESTSNOW 1.52 N Lake Townsend, NCMAJOR ROADS CLEAR,.
Dec 9, 11:01 AM ESTFREEZING RAIN 0.1Roxboro, NCSPOTTER REPORTED 0.1 INCH OF ZR IN TREES. PRECIP HAS CHANGED TO SNOW.
Dec 9, 11:03 AM ESTSNOW 34 Wnw Pfafftown, NC3.0 INCHES OF SNOW ON GROUND...LIGHT SNOW FALLING...33 DEGREES.
Dec 9, 11:25 AM ESTSNOW 3.83 W Winston-Salem, NC3.8 INCHES OF SNOW ON GROUND...LIGHT SNOW ONGOING.
Dec 9, 1:28 PM ESTSNOW 23 S Thomasville, NCSNOW/SLEET MIX...ROADS CLEAR BUT WET....32 DEGREES.
Dec 9, 1:31 PM ESTSNOW 35 Wnw Concord, NCSTILL SNOWING.
Dec 9, 2:08 PM ESTSNOW 3.44 Nne Colfax, NCSTILL SNOWING.
Dec 9, 3:07 PM ESTSNOW 13 Nnw Archdale, NCLESS THAN 1 INCH ON THE GROUND SOUTH OF HIGH POINT.
Dec 9, 3:16 PM ESTSNOW 23 Nw Jamestown, NC2.0 INCHES TOTAL...ONE FROM 12/8, ONE FROM 12/9.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 7.8 hours before the alert went out and 45 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, Greensboro/Hi Pt, NC at 12:00Z on 2017-12-08Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 12:00Z on 2017-12-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 square meters per square second.1939587897117136Sfc1 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
1328 m above ground
0-6 km bulk shear
92 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
380 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

042 
WWUS42 KRAH 081948
WSWRAH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Raleigh NC
248 PM EST Fri Dec 8 2017

...Winter Storm Warning in effect the Northern Piedmont of North
Carolina including the Triad cities east to Roxboro and
Hillsborough. Winter Weather Advisory for the Central Piedmont to
the Northeast Piedmont including the Triangle Area...

.A potent jet stream along with several waves of low pressure 
will bring widespread precipitation across North Carolina into
Saturday. The air mass will be marginally cold enough for wet snow
accumulations in the Warning area, with a change to rain limiting
snow accumulations in the Advisory Area. 


NCZ007-021>024-038-039-090400-
/O.UPG.KRAH.WW.Y.0004.000000T0000Z-171209T2100Z/
/O.NEW.KRAH.WS.W.0002.171208T1948Z-171209T2100Z/
Person-Forsyth-Guilford-Alamance-Orange-Davidson-Randolph-
Including the cities of Bushy Fork, Concord, Roxboro, Surl, 
Pfafftown, Stanleyville, Winston-Salem, Greensboro, 
Lake Townsend, High Point, Burlington, Graham, Chapel Hill, 
Carrboro, Lexington, Thomasville, Asheboro, Ulah, Archdale, 
and Trinity
248 PM EST Fri Dec 8 2017

...WINTER STORM WARNING IN EFFECT UNTIL 4 PM EST SATURDAY...

* WHAT...Periods of wet snow expected into Saturday morning. .
  Plan the potential for some slushy and slick spots that will
  create hazardous travel. Wet snow accumulations of 2 to 4 inches
  are expected with locally 5 inches possible in the northern
  Piedmont. The accumulations will be mostly on elevated and
  grassy surfaces. 

* WHERE...Northwest portions of central North Carolina including
  the Piedmont Triad cities and communities, east to the Roxboro
  and Hillsborough areas. 

* WHEN...Until 4 PM EST Saturday.

* ADDITIONAL DETAILS...Temperatures will remain in the lower 30s
  overnight, with highs Saturday in the mid 30s. Be prepared for 
  significant reductions in visibility at times. Heavy slushy snow
  accumulations may freeze on bridges and overpasses overnight. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for wet snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

NCZ009-010-026-041-090400-
/O.EXA.KRAH.WW.Y.0004.000000T0000Z-171209T2100Z/
Vance-Warren-Franklin-Wake-
Including the cities of Dabney, Henderson, Norlina, Wise, Afton, 
Warrenton, Lake Gaston, Pilot, Ingleside, Louisburg, Franklinton,
Raleigh, and Cary
248 PM EST Fri Dec 8 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 PM EST SATURDAY...

* WHAT...Wet snow occurring. The snow is expected to mix with rain
  at times, then change to rain tonight. Plan on slippery road
  conditions with slushy accumulations especially on elevated
  surfaces. Wet snow accumulations of 1 to 2 inches may occur,
  with highly variable amounts likely due to the warm ground.

* WHERE...Vance, Warren, Franklin and Wake Counties.

* WHEN...Until 4 PM EST Saturday.

* ADDITIONAL DETAILS...Temperatures will remain in the lower to
  mid 30s overnight, with the road surfaces remaining just above
  freezing. Therefore, be prepared for some slushy accumulations
  and reduced visibilities at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for wet snow means periods of wet snow
will cause primarily travel difficulties. Be prepared for snow
covered 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.

$$

NCZ008-025-040-090400-
/O.CON.KRAH.WW.Y.0004.000000T0000Z-171209T2100Z/
Granville-Durham-Chatham-
Including the cities of Oxford, Butner, Creedmoor, Bethesda, 
Durham, Research Triangle, Hasty, Siler City, Bynum, Moncure, 
and Pittsboro
248 PM EST Fri Dec 8 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST
SATURDAY...

* WHAT...Wet snow occurring. Plan on slippery road conditions. Wet
  snow accumulations of up to two inches are expected, but mainly
  on grassy and elevated areas. Periods of wet snow will continue
  overnight, possibly mixed with rain later limiting
  accumulations. 

* WHERE...Granville, Durham and Chatham Counties.

* WHEN...Until 4 PM EST Saturday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
  times. Bridges and overpasses may become very slushy.
  Temperatures will remain in the lower 30s overnight. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for wet snow means periods of wet snow
will cause primarily travel difficulties. Be prepared for snow
covered 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.

$$

Badgett/KCP
4 follow-up statements
082 
WWUS42 KRAH 090255
WSWRAH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Raleigh NC
955 PM EST Fri Dec 8 2017

...Winter Storm Warning in effect for the northern Piedmont of 
NC, including the Triad cities east to Roxboro, Oxford, and 
Henderson. Winter Weather Advisory for portions of the central 
and northeast Piedmont, including the Triangle Area...

NCZ008-009-091200-
/O.UPG.KRAH.WW.Y.0004.000000T0000Z-171209T2100Z/
/O.EXA.KRAH.WS.W.0002.000000T0000Z-171209T2100Z/
Granville-Vance-
Including the cities of Oxford, Butner, Creedmoor, Dabney, 
and Henderson
955 PM EST Fri Dec 8 2017

...WINTER STORM WARNING IN EFFECT UNTIL 4 PM EST SATURDAY...

* WHAT...A wintry mix of sleet, snow, and freezing rain tonight
  will change to all snow during the late morning to midday hours
  Saturday, before tapering off during the afternoon. Additional
  accumulations of up to two inches are expected, particularly 
  after the changeover to snow on Saturday.

* WHERE...Granville and Vance Counties.

* WHEN...Until 4 PM EST Saturday.

* ADDITIONAL DETAILS...Temperatures will hover in the lower 30s
  through Saturday morning, with highs Saturday in the mid 30s.  
  Slushy snow accumulations may freeze on bridges and overpasses 
  overnight. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning means severe winter weather conditions are
occurring or are expected to soon occur. If you must travel, keep
an extra flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are 
calling from can be obtained by calling 5 1 1.

$$

NCZ007-021>024-038-039-091200-
/O.CON.KRAH.WS.W.0002.000000T0000Z-171209T2100Z/
Person-Forsyth-Guilford-Alamance-Orange-Davidson-Randolph-
Including the cities of Bushy Fork, Concord, Roxboro, Surl, 
Pfafftown, Stanleyville, Winston-Salem, Greensboro, 
Lake Townsend, High Point, Burlington, Graham, Chapel Hill, 
Carrboro, Lexington, Thomasville, Asheboro, Ulah, Archdale, 
and Trinity
955 PM EST Fri Dec 8 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM EST
SATURDAY...

* WHAT...A wintry mix of sleet, snow, and freezing rain tonight
  will change to all snow during the morning hours Saturday, 
  before tapering off during the afternoon. Additional 
  accumulations of up to two inches are expected, particularly 
  after the changeover to snow on Saturday.

* WHERE...Northwest portions of central NC, including the 
  Piedmont Triad cities and communities, east to the Roxboro and 
  Hillsborough areas. 

* WHEN...Until 4 PM EST Saturday.

* ADDITIONAL DETAILS...Temperatures will hover in the lower 30s
  through Saturday morning, with highs Saturday in the mid 30s.  
  Slushy snow accumulations may freeze on bridges and overpasses 
  overnight. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning means severe winter weather conditions are
occurring or are expected to soon occur. If you must travel, keep
an extra flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are 
calling from can be obtained by calling 5 1 1.

$$

NCZ010-025-026-040-041-091200-
/O.CON.KRAH.WW.Y.0004.000000T0000Z-171209T2100Z/
Warren-Durham-Franklin-Chatham-Wake-
Including the cities of Norlina, Wise, Afton, Warrenton, 
Lake Gaston, Bethesda, Durham, Research Triangle, Pilot, 
Ingleside, Louisburg, Franklinton, Hasty, Siler City, Bynum, 
Moncure, Pittsboro, Raleigh, and Cary
955 PM EST Fri Dec 8 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST
SATURDAY...

* WHAT...Rain through early Saturday, which may occasionally mix
  with sleet, will change to snow during the late morning to
  midday hours on Saturday, before tapering off during the
  afternoon. An additional dusting, to up to one inch  
  accumulation, will be possible after the expected changeover to 
  snow occurs on Saturday, with highly variable amounts likely due
  to the warm ground.

* WHERE...Warren, Durham, Franklin, Chatham and Wake Counties.

* WHEN...Until 4 PM EST Saturday.

* ADDITIONAL DETAILS...Temperatures will hover in the lower 30s
  through Saturday morning, with highs Saturday in the mid 30s. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory means wintry precipitation may 
primarily cause travel difficulties. Be prepared for slick road 
conditions, particularly on bridges and overpasses, when the snow
is falling on Saturday. Use extra caution while driving. The 
latest road conditions for the state you are calling from can be 
obtained by calling 5 1 1.

$$

MWS
589 
WWUS42 KRAH 090916
WSWRAH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Raleigh NC
416 AM EST Sat Dec 9 2017

...Winter Storm Warning in effect for the northern Piedmont of NC,
including the Triad cities east to Roxboro, Oxford, and
Henderson. Winter Weather Advisory for portions of the central
and northeast Piedmont, including the Triangle Area...

NCZ007>009-021>024-038-039-092100-
/O.CON.KRAH.WS.W.0002.000000T0000Z-171209T2100Z/
Person-Granville-Vance-Forsyth-Guilford-Alamance-Orange-Davidson-
Randolph-
Including the cities of Bushy Fork, Concord, Roxboro, Surl, 
Oxford, Butner, Creedmoor, Dabney, Henderson, Pfafftown, 
Stanleyville, Winston-Salem, Greensboro, Lake Townsend, 
High Point, Burlington, Graham, Chapel Hill, Carrboro, Lexington,
Thomasville, Asheboro, Ulah, Archdale, and Trinity
416 AM EST Sat Dec 9 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM EST THIS
AFTERNOON...

* WHAT...Snow likely this morning through early afternoon. Plan on
  difficult travel conditions. Additional snow accumulations of 
  up to two inches are expected.

* WHERE...Much of the northern Piedmont of central North 
  Carolina.

* WHEN...Until 4 PM EST this afternoon.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather 
conditions are occurring. If you must travel, keep an extra 
flashlight, food and water in your vehicle in case of an 
emergency. The latest road conditions for the state you are 
calling from can be obtained by calling 5 1 1.

$$

NCZ010-025-026-040-041-092100-
/O.CON.KRAH.WW.Y.0004.000000T0000Z-171209T2100Z/
Warren-Durham-Franklin-Chatham-Wake-
Including the cities of Norlina, Wise, Afton, Warrenton, 
Lake Gaston, Bethesda, Durham, Research Triangle, Pilot, 
Ingleside, Louisburg, Franklinton, Hasty, Siler City, Bynum, 
Moncure, Pittsboro, Raleigh, and Cary
416 AM EST Sat Dec 9 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST THIS
AFTERNOON...

* WHAT...A mix of snow, sleet, and light rain is likely today,
  from this morning through mid afternoon. Plan on slippery road
  conditions. Additional snow accumulations of up to one inch are
  expected.

* WHERE...Warren, Durham, Franklin, Chatham and Wake Counties.

* WHEN...Until 4 PM EST this afternoon.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of wet snow will
cause primarily travel difficulties. Be prepared for snow covered
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.

$$
391 
WWUS42 KRAH 091624
WSWRAH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Raleigh NC
1124 AM EST Sat Dec 9 2017

...Winter Storm Warning in effect for the northern Piedmont of NC,
including the Triad cities east to Roxboro, Oxford, and
Henderson. Winter Weather Advisory for portions of the central
and northeast Piedmont, including the Triangle Area...

NCZ007>009-021>024-038-039-092100-
/O.CON.KRAH.WS.W.0002.000000T0000Z-171209T2100Z/
Person-Granville-Vance-Forsyth-Guilford-Alamance-Orange-Davidson-
Randolph-
Including the cities of Bushy Fork, Concord, Roxboro, Surl, 
Oxford, Butner, Creedmoor, Dabney, Henderson, Pfafftown, 
Stanleyville, Winston-Salem, Greensboro, Lake Townsend, 
High Point, Burlington, Graham, Chapel Hill, Carrboro, Lexington,
Thomasville, Asheboro, Ulah, Archdale, and Trinity
1124 AM EST Sat Dec 9 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM EST THIS
AFTERNOON...

* WHAT...Snow through early afternoon. Plan on difficult travel 
  conditions. Additional snow accumulations of up to one inch are 
  expected.

* WHERE...North Piedmont of central North Carolina.

* WHEN...Until 4 PM EST this afternoon.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

NCZ010-025-026-040-041-092100-
/O.CON.KRAH.WW.Y.0004.000000T0000Z-171209T2100Z/
Warren-Durham-Franklin-Chatham-Wake-
Including the cities of Norlina, Wise, Afton, Warrenton, 
Lake Gaston, Bethesda, Durham, Research Triangle, Pilot, 
Ingleside, Louisburg, Franklinton, Hasty, Siler City, Bynum, 
Moncure, Pittsboro, Raleigh, and Cary
1124 AM EST Sat Dec 9 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST THIS
AFTERNOON...

* WHAT...A mix of snow, sleet, and light rain through mid
  afternoon. Be alert for slippery road conditions. Additional
  snow accumulations of less than an inch are expected.

* WHERE...Warren, Durham, Franklin, Chatham and Wake Counties.

* WHEN...Until 4 PM EST this afternoon.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for blowing snow means that
visibilities will be limited due to strong winds blowing snow
around. Use caution when traveling, especially in open areas. The
latest road conditions for the state you are calling from can be
obtained by calling 5 1 1.

$$
879 
WWUS42 KRAH 092024
WSWRAH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Raleigh NC
324 PM EST Sat Dec 9 2017

...Winter Weather Advisory 1000 PM tonight through 1000 AM Sunday
for black ice... 

.Original Winter Storm Warnings and Advisories have been canceled.
Another Winter Weather Advisory has been issued for tonight 
through Sunday morning for black ice, as skies clear and 
temperatures fall into the 20s.

NCZ007>009-021>024-038-039-100430-
/O.CAN.KRAH.WS.W.0002.000000T0000Z-171209T2100Z/
/O.NEW.KRAH.WW.Y.0005.171210T0300Z-171210T1500Z/
Person-Granville-Vance-Forsyth-Guilford-Alamance-Orange-Davidson-
Randolph-
Including the cities of Bushy Fork, Concord, Roxboro, Surl, 
Oxford, Butner, Creedmoor, Dabney, Henderson, Pfafftown, 
Stanleyville, Winston-Salem, Greensboro, Lake Townsend, 
High Point, Burlington, Graham, Chapel Hill, Carrboro, Lexington,
Thomasville, Asheboro, Ulah, Archdale, and Trinity
324 PM EST Sat Dec 9 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO
10 AM EST SUNDAY...

...WINTER STORM WARNING IS CANCELLED...

* WHAT...Refreezing of residual snow, slush, and water expected as
  skies clear late evening. Areas bridges, overpasses, parking
  lots, and side walks will be most prone for icing. 

* WHERE...Much of the Piedmont portions of central North 
  Carolina.

* WHEN...From 10 PM this evening to 10 AM EST Sunday.

* ADDITIONAL DETAILS...Any water that does not evaporate from the
  snow melt and precipitation today will quickly freeze as
  temperatures fall into the 20s tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for black ice means that ice that is
very difficult to see, especially at night is expected to create
hazardous travel conditions. 

Use caution when traveling, especially on bridges and overpasses,
and on rural roads. You can check current conditions for the 
state by calling 5 1 1.

$$

NCZ010-025-026-040-041-100430-
/O.CAN.KRAH.WW.Y.0004.000000T0000Z-171209T2100Z/
/O.NEW.KRAH.WW.Y.0005.171210T0300Z-171210T1500Z/
Warren-Durham-Franklin-Chatham-Wake-
Including the cities of Norlina, Wise, Afton, Warrenton, 
Lake Gaston, Bethesda, Durham, Research Triangle, Pilot, 
Ingleside, Louisburg, Franklinton, Hasty, Siler City, Bynum, 
Moncure, Pittsboro, Raleigh, and Cary
324 PM EST Sat Dec 9 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO
10 AM EST SUNDAY...

* WHAT...Refreezing of residual snow, slush, and water expected as
  skies clear late evening. Areas bridges, overpasses, parking
  lots, and side walks will be most prone for icing. 

* WHERE...Much of the Piedmont portions of central North 
  Carolina.

* WHEN...From 10 PM this evening to 10 AM EST Sunday.

* ADDITIONAL DETAILS...Any water that does not evaporate from the
  precipitation today will quickly freeze as temperatures fall 
  into the 20s tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for black ice means that ice that is
very difficult to see, especially at night is expected to create
hazardous travel conditions. 

Use caution when traveling, especially on bridges and overpasses,
and on rural roads. You can check current conditions for the 
state by calling 5 1 1.

$$

PBADGETT

The office that day

Everything else NWS Raleigh, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 8, 4:17 AM ESTWinter Weather AdvisoryRAHAlamance, Chatham, Davidson, Durham, Forsyth, Franklin and 8 more35 hr

Nearby

Winter Storm Warnings in North Carolina, 2017Every winter storm warning in 2017

Sources

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