Winter Storm Warning 4, NWS Raleigh, NC

000 
WWUS42 KRAH 180317
WSWRAH

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RALEIGH NC
1017 PM EST THU DEC 17 2009

...SIGNIFICANT WINTER STORM EXPECTED TO IMPACT THE NORTH CAROLINA
PIEDMONT REGION FRIDAY AFTERNOON THROUGH SATURDAY EVENING...

.COLD HIGH PRESSURE WILL BE IN PLACE OVER NORTH CAROLINA THROUGH
FRIDAY. AN AREA OF LOW PRESSURE IN THE GULF OF MEXICO WILL TRACK
NORTHEAST ALONG THE CAROLINA COAST FRIDAY NIGHT THROUGH SATURDAY.
A WINTRY MIXTURE OF PRECIPITATION IS EXPECTED OVER THE WESTERN AND
CENTRAL PIEDMONT FRIDAY AFTERNOON...CONTINUING FRIDAY NIGHT AND
SATURDAY... BEFORE TAPERING OFF SATURDAY EVENING.

NCZ007-021>023-038-039-181130-
/O.CON.KRAH.WS.W.0004.091218T1700Z-091220T0000Z/
PERSON-FORSYTH-GUILFORD-ALAMANCE-DAVIDSON-RANDOLPH-
INCLUDING THE CITIES OF...ROXBORO...WINSTON-SALEM...GREENSBORO...
HIGH POINT...BURLINGTON...LEXINGTON...ASHEBORO
1017 PM EST THU DEC 17 2009

...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON FRIDAY TO
7 PM EST SATURDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM NOON FRIDAY TO 7 PM
EST SATURDAY. 

BASIS...AN AREA OF LOW PRESSURE IN THE GULF OF MEXICO WILL TRACK
NORTHEAST ALONG THE CAROLINA COAST FRIDAY NIGHT THROUGH SATURDAY.

PRECIPITATION TYPES AND ACCUMULATION...SNOW AND SLEET
ACCUMULATIONS OF 3 TO 5 INCHES ARE EXPECTED WITH LOCALLY HIGHER
AMOUNTS POSSIBLE. FREEZING RAIN COULD DEVELOP AS EARLY AS AROUND
MIDNIGHT FRIDAY NIGHT. ICE ACCUMULATIONS OF ONE OR TWO TENTHS INCH
ARE POSSIBLE BEFORE 9 AM SATURDAY IN THE TRIAD AND NEARBY
COMMUNITIES...WITH LESSER AMOUNTS FURTHER EAST AND SOUTH. WITH THE
STORM SYSTEM STILL IN THE INITIAL STAGES OF DEVELOPMENT...THE LOW
PRESSURE TRACK REMAINS UNCERTAIN. THE SMALLEST DEVIATION EAST OR
WEST THAN THE CURRENT MODEL TRACK...COULD RESULT IN HEAVIER OR
LESSER AMOUNTS ACROSS THE WARNING AREA.

TIMING AND DURATION...PRECIPITATION WILL BEGIN AS SNOW ACROSS THE
NORTHWEST AND CENTRAL PIEDMONT...INCLUDING THE PIEDMONT TRIAD
REGION FRIDAY AFTERNOON. THE SNOW WILL CONTINUE AT LEAST INTO THE
EVENING HOURS... POSSIBLY BECOMING HEAVY AT TIMES. THE SNOW MAY
BECOME MIXED WITH SLEET OR CHANGE TO FREEZING RAIN LATE FRIDAY
NIGHT OR DURING THE DAY ON SATURDAY...BEFORE TAPERING OFF
SATURDAY EVENING. THERE IS A POTENTIAL FOR A THIN GLAZE OF ICE
FROM FREEZING RAIN ACROSS THE WARNING AREA.

IMPACTS...TRAVELING WILL BECOME TREACHEROUS ACROSS THE WARNING
AREA AS EARLY AS FRIDAY AFTERNOON...WITH SLICK ICY SPOTS
FIRST DEVELOPING ON ELEVATED SURFACES...INCLUDING BRIDGES AND
OVERPASSES...BEFORE SNOW ACCUMULATIONS BEGIN TO IMPACT ALL ROAD
SURFACES LATER IN THE DAY FRIDAY. SOME SCATTERED POWER OUTAGES ARE
POSSIBLE IN THE TRIAD REGION DUE TO THE COMBINATION OF FREEZING
RAIN AND STRONG WIND GUSTS OF 20 TO 30 MPH. FURTHER EAST AND
SOUTH... OUTAGES SHOULD BE MORE ISOLATED.

$$

NCZ008>011-024>028-040-041-043-073>076-181130-
/O.CON.KRAH.WW.Y.0008.091218T1700Z-091220T0000Z/
GRANVILLE-VANCE-WARREN-HALIFAX-ORANGE-DURHAM-FRANKLIN-NASH-
EDGECOMBE-CHATHAM-WAKE-WILSON-STANLY-MONTGOMERY-MOORE-LEE-
INCLUDING THE CITIES OF...OXFORD...HENDERSON...WARRENTON...
ROANOKE RAPIDS...CHAPEL HILL...DURHAM...LOUISBURG...NASHVILLE...
ROCKY MOUNT...PITTSBORO...RALEIGH...WILSON...ALBEMARLE...TROY...
SOUTHERN PINES...SANFORD
1017 PM EST THU DEC 17 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON FRIDAY TO
7 PM EST SATURDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON FRIDAY TO
7 PM EST SATURDAY. 

BASIS...AN AREA OF LOW PRESSURE IN THE GULF OF MEXICO WILL TRACK
NORTHEAST ALONG THE CAROLINA COAST FRIDAY NIGHT THROUGH SATURDAY.

PRECIPITATION TYPES AND ACCUMULATION...SNOW AND SLEET
ACCUMULATIONS OF 1 TO 2 INCHES ARE POSSIBLE...WITH AN ADDITIONAL
COATING OF ICE FROM FREEZING RAIN ALSO POSSIBLE. WITH THE STORM
SYSTEM STILL IN THE INITIAL STAGES OF DEVELOPMENT...THE TRACK OF
THE LOW PRESSURE SYSTEM REMAINS UNCERTAIN. THE SMALLEST DEVIATION
EAST OR WEST FROM THE CURRENT FORECAST TRACK...COULD RESULT IN
HEAVIER OR LESSER AMOUNTS OF SNOW OR ICE ACROSS THE ADVISORY
AREA.

TIMING AND DURATION...PRECIPITATION WILL BEGIN AS SNOW ACROSS THE
NORTHWEST AND CENTRAL PIEDMONT...INCLUDING THE TRIANGLE REGION
FRIDAY AFTERNOON. THE PRECIPITATION MAY BECOME A MIXTURE OF
SLEET... FREEZING RAIN...OR RAIN FRIDAY NIGHT...BEFORE ENDING AS
RAIN... FREEZING RAIN OR FREEZING DRIZZLE BY SATURDAY EVENING.

IMPACTS...TRAVELING WILL BECOME TREACHEROUS ACROSS THE ADVISORY
AREA FRIDAY AFTERNOON THROUGH THE DAY ON SATURDAY...WITH SLICK
ICY SPOTS DEVELOPING FIRST ON ELEVATED SURFACES...INCLUDING
BRIDGES AND OVERPASSES... BEFORE ALL ROAD SURFACES ARE IMPACTED
LATER IN THE DAY FRIDAY. SOME POWER OUTAGES MAY OCCUR DUE TO THE
COMBINATION OF FREEZING RAIN AND STRONG WINDS OF 20 TO 30 MPH.

$$

000 
WWUS42 KRAH 180912
WSWRAH

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RALEIGH NC
412 AM EST FRI DEC 18 2009

...MAJOR WINTER STORM EXPECTED TO IMPACT THE NORTH CAROLINA
PIEDMONT REGION THIS AFTERNOON THROUGH SATURDAY EVENING...

.COLD HIGH PRESSURE WILL BE IN PLACE OVER NORTH CAROLINA TODAY. 
A DEEPENING LOW PRESSURE IS FORECAST TO TRACK FROM THE GULF OF
MEXICO TODAY... NORTHEAST ALONG THE SOUTH CAROLINA COAST
TONIGHT... THEN UP THE EASTERN SEABOARD LATE SATURDAY. THIS IS THE
PREFERRED TRACK FOR WINTER STORMS OVER THE PIEDMONT OF NORTH
CAROLINA. SNOW IS EXPECTED OVER THE PIEDMONT THIS AFTERNOON. THE
SNOW WILL CONTINUE OVER THE PIEDMONT TRIAD TONIGHT. A NARROW
CORRIDOR OF A WINTRY MIXTURE OF PRECIPITATION IS EXPECTED OVER THE
SOUTHEASTERN PIEDMONT TONIGHT WITH SNOW CONTINUING IN THE
NORTHWEST. THE PRECIPITATION WILL TAPER OFF SATURDAY.

NCZ028-043-181015-
/O.CAN.KRAH.WW.Y.0008.091218T1700Z-091220T0000Z/
EDGECOMBE-WILSON-
INCLUDING THE CITIES OF...ROCKY MOUNT...WILSON
412 AM EST FRI DEC 18 2009

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS CANCELLED THE WINTER
WEATHER ADVISORY. 

LOW PRESSURE WILL TRACK NEAR THE COAST LATER TONIGHT AND SATURDAY
BRINGING MOSTLY RAIN TO OUR REGION. 

RAIN IS EXPECTED TO DEVELOP THIS AFTERNOON AND CONTINUE TONIGHT.
THE RAIN MAY BE MIXED WITH SNOW AND SLEET THIS AFTERNOON... BUT
LITTLE OR NO SNOW ACCUMULATION IS EXPECTED. 

THE RAIN MAY END AS A BRIEF PERIOD OF LIGHT SNOW ON SATURDAY
AFTERNOON. 

MOST OF THE WINTRY WEATHER CONDITIONS WILL BE FOUND JUST WEST OF
THE TARBORO AND WILSON AREAS THROUGH THIS EVENT. 


$$

NCZ008>010-024-025-040-181715-
/O.UPG.KRAH.WW.Y.0008.091218T1700Z-091220T0000Z/
/O.EXA.KRAH.WS.W.0004.091218T1700Z-091220T0000Z/
GRANVILLE-VANCE-WARREN-ORANGE-DURHAM-CHATHAM-
INCLUDING THE CITIES OF...OXFORD...HENDERSON...WARRENTON...
CHAPEL HILL...DURHAM...PITTSBORO
412 AM EST FRI DEC 18 2009

...WINTER STORM WARNING IN EFFECT FROM NOON TODAY TO 7 PM EST
SATURDAY...

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A WINTER STORM
WARNING FOR SNOW WHICH IS IN EFFECT FROM NOON TODAY TO 7 PM EST
SATURDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT.

AN AREA OF LOW PRESSURE IN THE GULF OF MEXICO WILL TRACK
NORTHEAST ALONG THE CAROLINA COAST FRIDAY NIGHT THROUGH SATURDAY.

SNOW IS EXPECTED THIS AFTERNOON... WITH A CHANGEOVER THE FREEZING
RAIN AND SLEET OVERNIGHT. SNOWFALL ACCUMULATIONS OF 1 TO 3 INCHES
ARE EXPECTED BY SUNSET... WITH STORM TOTALS OF 2 TO 6 INCHES. THE
HEAVIER SNOWFALL WILL LIKELY BE FOUND ALONG AND NORTH OF THE
INTERSTATE 85 CORRIDOR. ADDITIONAL ICE ACCUMULATIONS OF NEAR ONE
QUARTER INCH ARE POSSIBLE TONIGHT.

WITH THE STORM SYSTEM STILL IN THE INITIAL STAGES OF DEVELOPMENT...
THE TRACK OF THE LOW PRESSURE SYSTEM REMAINS UNCERTAIN. THE
SMALLEST DEVIATION EAST OR WEST FROM THE CURRENT FORECAST
TRACK...COULD RESULT IN HEAVIER OR LESSER AMOUNTS OF SNOW OR ICE
ACROSS THE ADVISORY AREA.

TIMING AND DURATION...PRECIPITATION WILL BEGIN AS SNOW ACROSS THE
NORTHWEST AND CENTRAL PIEDMONT...INCLUDING THE TRIANGLE REGION
FRIDAY AFTERNOON. THE PRECIPITATION WILL CHANGE TO FREEZING RAIN
AND SLEET TONIGHT... THEN GRADUALLY TAPER OFF AND END AS LIGHT
SNOW OR LIGHT FREEZING DRIZZLE SATURDAY.

IMPACTS...TRAVELING WILL BECOME TREACHEROUS ACROSS THE WARNING AREA
FRIDAY AFTERNOON THROUGH THE DAY ON SATURDAY...WITH SLICK ICY
SPOTS DEVELOPING FIRST ON ELEVATED SURFACES...INCLUDING BRIDGES
AND OVERPASSES... BEFORE ALL ROAD SURFACES ARE IMPACTED LATER IN
THE DAY FRIDAY. SOME POWER OUTAGES MAY OCCUR DUE TO THE
COMBINATION OF FREEZING RAIN AND STRONG WINDS OF 20 TO 30 MPH.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE.  THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

$$

NCZ007-021>023-038-039-181715-
/O.CON.KRAH.WS.W.0004.091218T1700Z-091220T0000Z/
PERSON-FORSYTH-GUILFORD-ALAMANCE-DAVIDSON-RANDOLPH-
INCLUDING THE CITIES OF...ROXBORO...WINSTON-SALEM...GREENSBORO...
HIGH POINT...BURLINGTON...LEXINGTON...ASHEBORO
412 AM EST FRI DEC 18 2009

...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON TODAY TO 7 PM
EST SATURDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM NOON TODAY TO 7 PM
EST SATURDAY. 

BASIS...AN AREA OF LOW PRESSURE IN THE GULF OF MEXICO WILL TRACK
NORTHEAST ALONG THE CAROLINA COAST FRIDAY NIGHT THROUGH SATURDAY.

PRECIPITATION TYPES AND ACCUMULATION...SNOW IS EXPECTED TO
OVERSPREAD THE REGION THIS AFTERNOON. ACCUMULATIONS OF 2 TO 5 
INCHES ARE LIKELY BY SUNSET. SNOW WILL CONTINUE TONIGHT MAINLY
OVER THE NORTHWEST PIEDMONT INCLUDING PIEDMONT TRIAD REGION... 
WHERE STORM TOTAL SNOWFALL AMOUNTS OF 8 TO 12 INCHES ARE LIKELY.
THE SNOW MAY MIX WITH OR CHANGE TO FREEZING RAIN OR SLEET...
MAINLY SOUTH AND EAST OF THE PIEDMONT TRIAD LATE TONIGHT. THE
PRECIPITATION WILL TAPER OFF TO LIGHT SNOW OR LIGHT FREEZING
DRIZZLE SATURDAY... WITH LITTLE ADDITIONAL ACCUMULATION. 

TIMING AND DURATION...PRECIPITATION WILL BEGIN AS SNOW ACROSS THE
NORTHWEST AND CENTRAL PIEDMONT...INCLUDING THE PIEDMONT TRIAD
REGION THIS AFTERNOON. THE SNOW WILL CONTINUE AT LEAST INTO THE
EVENING HOURS... AND BECOME HEAVY. THE SNOW MAY BECOME MIXED WITH
SLEET OR CHANGE TO FREEZING RAIN LATE FRIDAY NIGHT OR DURING THE
DAY ON SATURDAY...BEFORE TAPERING OFF SATURDAY EVENING. THERE IS A
POTENTIAL FOR A THIN GLAZE OF ICE FROM FREEZING RAIN ACROSS THE
WARNING AREA. 

IMPACTS...TRAVELING WILL BECOME TREACHEROUS IF NOT IMPOSSIBLE
WITHOUT SNOW TIRES OR CHAINS ACROSS THE WARNING AREA LATE TODAY
AND TONIGHT. SLICK SPOTS WILL FIRST DEVELOP ON ELEVATED
SURFACES...INCLUDING BRIDGES AND OVERPASSES...BEFORE SNOW
ACCUMULATIONS BEGIN TO IMPACT ALL ROAD SURFACES LATER IN THE DAY.
SOME POWER OUTAGES ARE POSSIBLE IN THE TRIAD REGION DUE TO THE
COMBINATION OF HEAVY SNOW... SOME FREEZING RAIN... AND STRONG WIND
GUSTS OF 20 TO 30 MPH. 


$$

NCZ042-077-181715-
/O.EXA.KRAH.WW.Y.0008.091218T1700Z-091220T0000Z/
JOHNSTON-HARNETT-
INCLUDING THE CITIES OF...SMITHFIELD...LILLINGTON
412 AM EST FRI DEC 18 2009

...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TODAY TO 7 PM EST
SATURDAY...

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW WHICH IS IN EFFECT FROM NOON TODAY TO 7
PM EST SATURDAY.

BASIS...AN AREA OF LOW PRESSURE IN THE GULF OF MEXICO WILL TRACK
NORTHEAST ALONG THE CAROLINA COAST FRIDAY NIGHT THROUGH SATURDAY.

PRECIPITATION TYPES AND ACCUMULATION...A BRIEF PERIOD OF SNOW AND
SLEET IS EXPECTED THIS AFTERNOON WITH ACCUMULATIONS OF UP TO AN
INCH POSSIBLE... MAINLY OVER THE NORTHERN SECTIONS OF JOHNSTON AND
HARNETT COUNTIES. THE SNOW WILL RAPIDLY CHANGE TO RAIN BY AROUND
SUNSET. WITH THE STORM SYSTEM STILL IN THE INITIAL STAGES OF
DEVELOPMENT...THE TRACK OF THE LOW PRESSURE SYSTEM REMAINS
UNCERTAIN. THE SMALLEST DEVIATION EAST OR WEST FROM THE CURRENT
FORECAST TRACK...COULD RESULT IN HEAVIER OR LESSER AMOUNTS OF SNOW
OR ICE ACROSS THE ADVISORY AREA.

TIMING AND DURATION...PRECIPITATION WILL BEGIN AS SNOW ACROSS THE
NORTHWEST AND CENTRAL PIEDMONT...INCLUDING THE TRIANGLE REGION
THIS AFTERNOON. IT WILL LIKELY BEGIN AS A BRIEF PERIOD OF SNOW FOR
THE NORTHERN SANDHILLS AND COASTAL PLAIN THIS AFTERNOON. RAIN IS
THEN EXPECTED TONIGHT IN OUR AREA. 

IMPACTS...TRAVELING MAY BECOME SLICK... ESPECIALLY ON BRIDGES AND
OVERPASSES THIS AFTERNOON INTO THE EVENING HOURS... BEFORE THE
SNOW CHANGES TO RAIN. 

$$

NCZ011-026-027-041-073>076-181715-
/O.CON.KRAH.WW.Y.0008.091218T1700Z-091220T0000Z/
HALIFAX-FRANKLIN-NASH-WAKE-STANLY-MONTGOMERY-MOORE-LEE-
INCLUDING THE CITIES OF...ROANOKE RAPIDS...LOUISBURG...
NASHVILLE...RALEIGH...ALBEMARLE...TROY...SOUTHERN PINES...SANFORD
412 AM EST FRI DEC 18 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO
7 PM EST SATURDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO
7 PM EST SATURDAY. 

BASIS...AN AREA OF LOW PRESSURE IN THE GULF OF MEXICO WILL TRACK
NORTHEAST ALONG THE CAROLINA COAST FRIDAY NIGHT THROUGH SATURDAY.

PRECIPITATION TYPES AND ACCUMULATION...SNOW AND SLEET ARE EXPECTED
TO DEVELOP ACROSS THE REGION THIS AFTERNOON. SNOW ACCUMULATIONS
OF UP TO AN INCH WILL BE POSSIBLE. THE SNOW WILL CHANGE TO MOSTLY
RAIN DURING THE EVENING HOURS. THERE MAY BE SOME FREEZING RAIN
LATER TONIGHT THROUGH SATURDAY MORNING. WITH THE STORM SYSTEM
STILL IN THE INITIAL STAGES OF DEVELOPMENT...THE TRACK OF THE LOW
PRESSURE SYSTEM REMAINS UNCERTAIN. THE SMALLEST DEVIATION EAST OR
WEST FROM THE CURRENT FORECAST TRACK...COULD RESULT IN HEAVIER OR
LESSER AMOUNTS OF SNOW OR ICE ACROSS THE ADVISORY AREA.

TIMING AND DURATION...PRECIPITATION WILL BEGIN AS SNOW ACROSS THE
NORTHWEST AND CENTRAL PIEDMONT...INCLUDING THE TRIANGLE REGION
FRIDAY AFTERNOON. THE PRECIPITATION MAY BECOME A MIXTURE OF
SLEET... FREEZING RAIN...OR RAIN FRIDAY NIGHT...BEFORE ENDING AS
RAIN... FREEZING RAIN OR FREEZING DRIZZLE BY SATURDAY EVENING.

IMPACTS...TRAVELING WILL BECOME SLICK ACROSS THE ADVISORY AREA
FRIDAY AFTERNOON INTO EARLY SATURDAY... WITH SLICK ICY SPOTS
DEVELOPING FIRST ON ELEVATED SURFACES...INCLUDING BRIDGES AND
OVERPASSES... BEFORE ALL ROAD SURFACES ARE IMPACTED LATER IN THE
DAY FRIDAY. SOME POWER OUTAGES MAY OCCUR DUE TO THE COMBINATION OF
FREEZING RAIN AND STRONG WINDS OF 20 TO 30 MPH.

$$

BADGETT

000 
WWUS42 KRAH 181646
WSWRAH

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RALEIGH NC
1146 AM EST FRI DEC 18 2009

...MAJOR WINTER STORM EXPECTED TO IMPACT CENTRAL NORTH CAROLINA... 

.DEEPENING LOW PRESSURE IS FORECAST TO TRACK FROM THE GULF OF
MEXICO TODAY... NORTHEAST ALONG THE SOUTH CAROLINA COAST
TONIGHT... THEN UP THE EASTERN SEABOARD THROUGH SATURDAY. WINTRY
PRECIPITATION WILL CONTINUE TO OVERSPREAD THE WARNING AND ADVISORY
AREAS FROM THE SOUTH THROUGH TONIGHT... TAPERING OFF FROM SOUTH TO
NORTH LATE TONIGHT INTO EARLY SATURDAY MORNING. THE RISK OF
FREEZING DRIZZLE WILL LINGER SATURDAY... ALONG WITH POSSIBLE LIGHT
SNOW NEAR THE VIRGINIA BORDER COUNTIES.

NCZ007-021>023-038-039-182315-
/O.CON.KRAH.WS.W.0004.091218T1700Z-091220T0000Z/
PERSON-FORSYTH-GUILFORD-ALAMANCE-DAVIDSON-RANDOLPH-
INCLUDING THE CITIES OF...ROXBORO...WINSTON-SALEM...GREENSBORO...
HIGH POINT...BURLINGTON...LEXINGTON...ASHEBORO
1146 AM EST FRI DEC 18 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST
SATURDAY...

BASIS...AN AREA OF LOW PRESSURE WILL TRACK ALONG THE SOUTHEAST AND
CAROLINA COAST THIS EVENING THROUGH SATURDAY. 

PRECIPITATION TYPES AND ACCUMULATION... A MIXTURE OF SNOW AND
SLEET WILL BECOME MOSTLY SNOW AS IT CONTINUES TO OVERSPREAD THE
REGION THIS AFTERNOON. ACCUMULATIONS OF 1 TO 3 INCHES ARE LIKELY
BY SUNSET. SNOW WILL CONTINUE TONIGHT OVER THE NORTHWEST
PIEDMONT... INCLUDING THE TRIAD REGION... WHERE STORM TOTAL
SNOWFALL AMOUNTS OF 6 TO 10 INCHES ARE LIKELY... WITH LOCALLY
HIGHER TOTALS POSSIBLE. THE SNOW MAY MIX WITH OR CHANGE TO
FREEZING RAIN OR SLEET... MAINLY SOUTH AND EAST OF THE TRIAD LATE
TONIGHT... AND A LIGHT GLAZING IS POSSIBLE. THE PRECIPITATION
WILL TAPER OFF TO LIGHT SNOW OR LIGHT FREEZING DRIZZLE SATURDAY...
WITH LITTLE ADDITIONAL ACCUMULATION.

TIMING AND DURATION...PRECIPITATION WILL OVERSPREAD THE REGION
THIS AFTERNOON... AND WILL REMAIN STEADY LATE THIS AFTERNOON
THROUGH TONIGHT. PRECIPITATION WILL TAPER OFF EARLY SATURDAY
MORNING... AND WILL REMAIN FAIRLY LIGHT THROUGH SATURDAY
AFTERNOON. PRECIPITATION CHANCES ARE EXPECTED TO END BY EARLY
SUNDAY EVENING.

IMPACTS...TRAVELING WILL BECOME VERY TREACHEROUS ACROSS THE
WARNING AREA TODAY THROUGH TONIGHT. SLICK SPOTS WILL FIRST
DEVELOP ON ELEVATED SURFACES... SUCH AS BRIDGES AND OVERPASSES...
BEFORE SNOW ACCUMULATIONS BEGIN TO IMPACT ALL ROAD SURFACES LATER
IN THE DAY. SOME POWER OUTAGES ARE POSSIBLE DUE TO THE COMBINATION
OF HEAVY SNOW AND GLAZE COATING THE TREES... AND STRONG WIND GUSTS
OF 25 TO 30 MPH. IN ADDITION... WIND CHILLS LATE THIS AFTERNOON
THROUGH TONIGHT WILL OCCASIONALLY DROP DOWN INTO THE TEENS.

$$

NCZ008>010-024-025-040-182315-
/O.CON.KRAH.WS.W.0004.091218T1700Z-091220T0000Z/
GRANVILLE-VANCE-WARREN-ORANGE-DURHAM-CHATHAM-
INCLUDING THE CITIES OF...OXFORD...HENDERSON...WARRENTON...
CHAPEL HILL...DURHAM...PITTSBORO
1146 AM EST FRI DEC 18 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST
SATURDAY...

BASIS...AN AREA OF LOW PRESSURE WILL TRACK ALONG THE SOUTHEAST AND
CAROLINA COAST THIS EVENING THROUGH SATURDAY. 

PRECIPITATION TYPES AND ACCUMULATION... A MIXTURE OF SNOW AND
SLEET WILL CONTINUE TO OVERSPREAD THE REGION THIS AFTERNOON. 
ACCUMULATIONS OF 1 TO 2 INCHES ARE LIKELY BY SUNSET. THE SNOW AND
SLEET IS EXPECTED TO CHANGE TO A WINTRY MIX OF SLEET... FREEZING
RAIN... AND RAIN LATE TONIGHT. STORM TOTAL SNOWFALL AMOUNTS OF 3
TO 5 INCHES ARE LIKELY... WITH LOCALLY HIGHER TOTALS POSSIBLE...
AND A LIGHT GLAZING IS POSSIBLE. THE PRECIPITATION WILL TAPER OFF
TO LIGHT SNOW OR LIGHT FREEZING DRIZZLE SATURDAY MORNING... WITH
LITTLE ADDITIONAL ACCUMULATION.

TIMING AND DURATION...PRECIPITATION WILL OVERSPREAD THE REGION
THIS AFTERNOON... AND WILL REMAIN STEADY LATE THIS AFTERNOON
THROUGH TONIGHT. PRECIPITATION WILL TAPER OFF SATURDAY MORNING...
AND WILL REMAIN FAIRLY LIGHT THROUGH SATURDAY AFTERNOON.
PRECIPITATION CHANCES ARE EXPECTED TO END BY EARLY SUNDAY EVENING.

IMPACTS...TRAVELING WILL BECOME TREACHEROUS ACROSS THE WARNING
AREA TODAY THROUGH TONIGHT. SLICK SPOTS WILL FIRST DEVELOP ON
ELEVATED SURFACES... SUCH AS BRIDGES AND OVERPASSES... BEFORE SNOW
ACCUMULATIONS BEGIN TO IMPACT ALL ROAD SURFACES LATER IN THE DAY.
SOME POWER OUTAGES ARE POSSIBLE DUE TO THE COMBINATION OF HEAVY
SNOW AND GLAZE COATING THE TREES... AND STRONG WIND GUSTS OF 25 TO
30 MPH. IN ADDITION... WIND CHILLS LATE THIS AFTERNOON THROUGH
TONIGHT WILL OCCASIONALLY DROP DOWN INTO THE TEENS.

$$

NCZ011-026-027-041-042-073>077-182315-
/O.CON.KRAH.WW.Y.0008.091218T1700Z-091220T0000Z/
HALIFAX-FRANKLIN-NASH-WAKE-JOHNSTON-STANLY-MONTGOMERY-MOORE-LEE-
HARNETT-
INCLUDING THE CITIES OF...ROANOKE RAPIDS...LOUISBURG...
NASHVILLE...RALEIGH...SMITHFIELD...ALBEMARLE...TROY...
SOUTHERN PINES...SANFORD...LILLINGTON
1146 AM EST FRI DEC 18 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST
SATURDAY...

BASIS...AN AREA OF LOW PRESSURE WILL TRACK ALONG THE SOUTHEAST AND
CAROLINA COAST THIS EVENING THROUGH SATURDAY. 

PRECIPITATION TYPES AND ACCUMULATION...AREAS OF SNOW AND SLEET ARE
EXPECTED TO DEVELOP ACROSS THE REGION THIS AFTERNOON. SNOW
ACCUMULATIONS OF UP TO AN INCH WILL BE POSSIBLE. THE SNOW WILL
CHANGE TO MOSTLY RAIN DURING THE LATE AFTERNOON. THERE MAY BE SOME
FREEZING RAIN LATER TONIGHT THROUGH SATURDAY MORNING. WITH THE
STORM SYSTEM STILL IN THE INITIAL STAGES OF DEVELOPMENT...THE
TRACK OF THE LOW PRESSURE SYSTEM REMAINS UNCERTAIN. THE SMALLEST
DEVIATION EAST OR WEST FROM THE CURRENT FORECAST TRACK...COULD
RESULT IN HEAVIER OR LESSER AMOUNTS OF SNOW OR ICE ACROSS THE
ADVISORY AREA.

TIMING AND DURATION...PRECIPITATION WILL OVERSPREAD THE REGION
THIS AFTERNOON... AND WILL REMAIN STEADY LATE THIS AFTERNOON
THROUGH TONIGHT. PRECIPITATION WILL TAPER OFF EARLY SATURDAY
MORNING... AND WILL REMAIN FAIRLY LIGHT THROUGH SATURDAY
AFTERNOON. PRECIPITATION CHANCES ARE EXPECTED TO END BY LATE
SATURDAY AFTERNOON.

IMPACTS...TRAVELING WILL BECOME HAZARDOUS ACROSS THE ADVISORY
AREA THIS AFTERNOON INTO EARLY SATURDAY... WITH SLICK ICY SPOTS
DEVELOPING FIRST ON ELEVATED SURFACES...INCLUDING BRIDGES AND
OVERPASSES... BEFORE ALL ROAD SURFACES ARE IMPACTED LATE TODAY. SOME
POWER OUTAGES MAY OCCUR DUE TO THE COMBINATION OF SOME SNOW AND
GLAZE ON TREES... AND STRONG WINDS OF 20 TO 30 MPH. IN
ADDITION... WIND CHILLS LATE THIS AFTERNOON THROUGH TONIGHT WILL
OCCASIONALLY DROP DOWN INTO THE UPPER TEENS TO LOWER 20S.

$$

GIH/BL

000 
WWUS42 KRAH 182046
WSWRAH

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RALEIGH NC
346 PM EST FRI DEC 18 2009

...MAJOR WINTER STORM EXPECTED TO IMPACT CENTRAL NORTH CAROLINA...

.A DEVELOPING LOW PRESSURE AREA WILL MOVE NORTHEAST UP THE
CAROLINA COASTS TONIGHT...THEN UP THE EASTERN SEABOARD ON
SATURDAY. WINTRY PRECIPITATION ACROSS THE WARNING AND ADVISORY
AREAS WILL CHANGE FROM SNOW TO FREEZING RAIN AND RAIN
TONIGHT...THEN LINGERING AS FREEZING DRIZZLE FOR MOST OF THE DAY
SATURDAY.

NCZ007-021>023-038-039-190500-
/O.CON.KRAH.WS.W.0004.000000T0000Z-091220T0000Z/
PERSON-FORSYTH-GUILFORD-ALAMANCE-DAVIDSON-RANDOLPH-
INCLUDING THE CITIES OF...ROXBORO...WINSTON-SALEM...GREENSBORO...
HIGH POINT...BURLINGTON...LEXINGTON...ASHEBORO
346 PM EST FRI DEC 18 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST
SATURDAY...

PRECIPITATION TYPES AND ACCUMULATION...SNOW...HEAVY AT TIMES...
IS EXPECTED ACROSS THE AREA INTO EARLY TONIGHT. ACCUMULATIONS OF
3 TO 5 INCHES ARE LIKELY ACROSS THE NORTHWEST PIEDMONT...WHICH
INCLUDES THE TRIAD REGION...THROUGH MIDNIGHT. THE SNOW WILL CHANGE
TO FREEZING RAIN...WHICH MAY BE MIXED WITH SOME SLEET...AFTER
MIDNIGHT. AN ICE ACCUMULATION OF UP TO TWO TENTHS OF AN INCH ON
TOP OF THE SNOW IS POSSIBLE BY MORNING. THE PRECIPITATION WILL
TAPER OFF TO LIGHT FREEZING DRIZZLE AND PERSIST FOR MUCH OF THE
DAY SATURDAY...WITH LITTLE ADDITIONAL ACCUMULATION.

TIMING AND DURATION...PRECIPITATION WILL BE WIDESPREAD ACROSS THE
REGION THIS EVENING AND TONIGHT. THE PRECIPITATION WILL DIMINISH
EARLY SATURDAY MORNING AND REMAIN FAIRLY LIGHT THROUGH SATURDAY
AFTERNOON. PRECIPITATION IS EXPECTED TO END BY EARLY SUNDAY
EVENING.

IMPACTS...TRAVELING WILL BE TREACHEROUS ACROSS THE AREA THIS
EVENING AND TONIGHT. SNOW WILL STICK TO ROAD SURFACES AND ICE MAY
ACCUMULATE ON THE SNOW AFTER MIDNIGHT. SOME POWER OUTAGES ARE
POSSIBLE DUE TO THE COMBINATION OF HEAVY SNOW AND GLAZE COATING
THE TREES...AND STRONG WIND GUSTS OF 25 TO 30 MPH. IN
ADDITION...WIND CHILL VALUES LATE THIS AFTERNOON THROUGH TONIGHT WILL
OCCASIONALLY DROP DOWN INTO THE TEENS.

$$

NCZ008>010-024-025-040-190500-
/O.CON.KRAH.WS.W.0004.000000T0000Z-091220T0000Z/
GRANVILLE-VANCE-WARREN-ORANGE-DURHAM-CHATHAM-
INCLUDING THE CITIES OF...OXFORD...HENDERSON...WARRENTON...
CHAPEL HILL...DURHAM...PITTSBORO
346 PM EST FRI DEC 18 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST
SATURDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST SATURDAY.

PRECIPITATION TYPES AND ACCUMULATION... A MIXTURE OF SNOW AND
SLEET IS EXPECTED ACROSS THE AREA THIS EVENING AND EARLY TONIGHT.
SNOW ACCUMULATIONS OF 1 TO 3 INCHES ARE LIKELY. THE SNOW AND
SLEET IS EXPECTED TO CHANGE TO A MIX OF FREEZING RAIN AND RAIN
AROUND MIDNIGHT...AND A GLAZE OF UP TO ONE TENTH OF AN INCH IS
POSSIBLE ON TOP OF THE SNOW. THE PRECIPITATION WILL TAPER OFF TO
LIGHT FREEZING DRIZZLE SATURDAY MORNING...WITH LITTLE ADDITIONAL
ACCUMULATION.

TIMING AND DURATION...PRECIPITATION WILL BE WIDESPREAD ACROSS THE
REGION THROUGH TONIGHT. THE PRECIPITATION WILL TAPER OFF SATURDAY
MORNING...AND REMAIN FAIRLY LIGHT THROUGH SATURDAY AFTERNOON.
PRECIPITATION CHANCES ARE EXPECTED TO END BY EARLY SUNDAY EVENING.

IMPACTS...TRAVELING WILL BECOME TREACHEROUS ACROSS THE WARNING
AREA THIS EVENING THROUGH TONIGHT. SNOW IS EXPECTED TO STICK TO
ROADS THIS EVENING AND TONIGHT...AND A GLAZE OF ICE WILL MAKE
DRIVING EVEN MORE HAZARDOUS AFTER MIDNIGHT. ISOLATED POWER
OUTAGES ARE POSSIBLE DUE TO THE COMBINATION OF SNOW AND GLAZE
COATING THE TREES...AND STRONG WIND GUSTS OF 25 TO 30 MPH. IN
ADDITION... WIND CHILL VALUES LATE THIS AFTERNOON THROUGH TONIGHT WILL
OCCASIONALLY DROP DOWN INTO THE TEENS.

$$

NCZ028-043-190500-
/O.EXA.KRAH.WW.Y.0008.000000T0000Z-091220T0000Z/
EDGECOMBE-WILSON-
INCLUDING THE CITIES OF...ROCKY MOUNT...WILSON
346 PM EST FRI DEC 18 2009

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 7 PM EST SATURDAY...

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A WINTER
WEATHER ADVISORY FOR FREEZING RAIN OR DRIZZLE WHICH IS IN EFFECT
UNTIL 7 PM EST SATURDAY.

PRECIPITATION TYPES AND ACCUMULATION...RAIN WILL OVERSPREAD THE
AREA TONIGHT AND IS EXPECTED TO CHANGE TO FREEZING DRIZZLE BY MID
DAY ON SATURDAY. A GLAZE OF ICE IS POSSIBLE...ESPECIALLY ON
ELEVATED SURFACES AND ON TREES AND GRASSY AREAS.

TIMING AND DURATION...RAIN WILL OVERSPREAD THE REGION THIS
EVENING AND REMAIN STEADY THROUGH TONIGHT. PRECIPITATION WILL
TAPER OFF SATURDAY MORNING... AND WILL REMAIN FAIRLY LIGHT
THROUGH SATURDAY AFTERNOON. PRECIPITATION CHANCES ARE EXPECTED TO
END BY SATURDAY EVENING.

IMPACTS...TRAVELING WILL BECOME HAZARDOUS ACROSS THE ADVISORY
AREA BY LATE MORNING SATURDAY. SLICK ICY SPOTS WILL DEVELOP FIRST
ON ELEVATED SURFACES...INCLUDING BRIDGES AND OVERPASSES...AND MAY
IMPACT ALL ROAD SURFACES SATURDAY AFTERNOON.

$$

NCZ011-026-027-041-042-073>077-190500-
/O.CON.KRAH.WW.Y.0008.000000T0000Z-091220T0000Z/
HALIFAX-FRANKLIN-NASH-WAKE-JOHNSTON-STANLY-MONTGOMERY-MOORE-LEE-
HARNETT-
INCLUDING THE CITIES OF...ROANOKE RAPIDS...LOUISBURG...
NASHVILLE...RALEIGH...SMITHFIELD...ALBEMARLE...TROY...
SOUTHERN PINES...SANFORD...LILLINGTON
346 PM EST FRI DEC 18 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST
SATURDAY...

PRECIPITATION TYPES AND ACCUMULATION...AREAS OF SNOW AND POSSIBLY
SOME SLEET ARE EXPECTED THIS EVENING AND INTO EARLY TONIGHT. SNOW
ACCUMULATIONS OF UP TO AN INCH WILL BE POSSIBLE. THE SNOW WILL
CHANGE TO MOSTLY RAIN EARLY TONIGHT AND MAY BE MIXED WITH SOME
FREEZING RAIN LATE TONIGHT THROUGH SATURDAY MORNING. THE
PRECIPITATION IS EXPECTED TO CHANGE TO FREEZING DRIZZLE BY
DAYBREAK AND CONTINUE INTO THE EARLY EVENING. A GLAZE OF ICE
RANGING UP TO ONE TENTH OF AN INCH IS POSSIBLE.

TIMING AND DURATION...PRECIPITATION WILL BE WIDESPREAD ACROSS THE
AREA THROUGH TONIGHT. THE PRECIPITATION WILL TAPER OFF EARLY
SATURDAY MORNING... AND WILL REMAIN FAIRLY LIGHT THROUGH SATURDAY
AFTERNOON. PRECIPITATION CHANCES ARE EXPECTED TO END BY LATE
SATURDAY AFTERNOON.

IMPACTS...TRAVEL MAY BE HAZARDOUS THIS EVENING AND EARLY TONIGHT
AS SNOW MAY STICK ON BRIDGES AND OVERPASSES. ONCE THE
PRECIPITATION CHANGES TO FREEZING DRIZZLE TOMORROW MORNING...AN
ICY GLAZE WILL BE POSSIBLE FOR MOST OF THE DAY SATURDAY...AGAIN
MAINLY ON BRIDGES AND OVERPASSES.

$$

000 
WWUS42 KRAH 190106
WSWRAH

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RALEIGH NC
806 PM EST FRI DEC 18 2009

...MAJOR WINTER STORM EXPECTED TO IMPACT CENTRAL NORTH CAROLINA...

.A STRENGTHENING LOW PRESSURE SYSTEM WILL MOVE NORTHEASTWARD
ALONG THE COAST OF THE CAROLINAS TONIGHT...THEN UP THE MIDDLE
ATLANTIC AND NORTHEASTERN SEABOARD SATURDAY AND SATURDAY NIGHT. 

NCZ007-021>023-038-039-190915-
/O.CON.KRAH.WS.W.0004.000000T0000Z-091220T0000Z/
PERSON-FORSYTH-GUILFORD-ALAMANCE-DAVIDSON-RANDOLPH-
INCLUDING THE CITIES OF...ROXBORO...WINSTON-SALEM...GREENSBORO...
HIGH POINT...BURLINGTON...LEXINGTON...ASHEBORO
806 PM EST FRI DEC 18 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST
SATURDAY...

PRECIPITATION TYPES AND ACCUMULATION... SNOW...BECOMING HEAVY AT
TIMES... IS EXPECTED ACROSS THE AREA UNTIL BETWEEN 11 PM AND 2 AM.
ACCUMULATIONS OF 4 TO 8 INCHES WITH LOCALLY HIGHER AMOUNTS OF
AROUND 10 INCHES... ARE LIKELY. THE HIGHEST ACCUMULATION SHOULD
OCCUR FROM ROXBORO TO THE TRIAD REGION TO LEXINGTON... WHILE
AMOUNTS ON THE LOWER END OF THE RANGE ARE EXPECTED FROM NEAR HIGH
ROCK LAKE TO ASHEBORO TO BURLINGTON. THE SNOW WILL THEN GRADUALLY
CHANGE TO FREEZING RAIN FROM SOUTHEAST TO NORTHWEST... AND
OCCASIONALLY MIX WITH SLEET. AN ICE ACCUMULATION OF UP TO TWO
TENTHS OF AN INCH ON TOP OF THE SNOW IS POSSIBLE BY MORNING. THE
PRECIPITATION WILL TAPER OFF TO LIGHT FREEZING DRIZZLE AND PERSIST
FOR MUCH OF THE DAY SATURDAY... WITH LITTLE ADDITIONAL ACCRUAL.

TIMING AND DURATION...OCCASIONALLY MODERATE TO HEAVY PRECIPITATION
WILL BE WIDESPREAD ACROSS THE AREA TONIGHT.... THEN BECOME AND
REMAIN LIGHT UNTIL ENDING BY LATE SATURDAY AFTERNOON.

IMPACTS...TRAVELING WILL BE TREACHEROUS ACROSS THE AREA TONIGHT
AND IS STRONGLY DISCOURAGED. SNOW WILL STICK TO ROAD SURFACES AND
ICE MAY ACCUMULATE ON THE SNOW AFTER MIDNIGHT. SOME POWER OUTAGES
ARE POSSIBLE DUE TO THE COMBINATION OF HEAVY SNOW AND GLAZE
COATING THE TREES...AND STRONG WIND GUSTS OF 25 TO 30 MPH. IN
ADDITION... WIND CHILL VALUES LATE TONIGHT WILL OCCASIONALLY DIP
INTO THE TEENS.

$$

NCZ008>010-024-025-040-190915-
/O.CON.KRAH.WS.W.0004.000000T0000Z-091220T0000Z/
GRANVILLE-VANCE-WARREN-ORANGE-DURHAM-CHATHAM-
INCLUDING THE CITIES OF...OXFORD...HENDERSON...WARRENTON...
CHAPEL HILL...DURHAM...PITTSBORO
806 PM EST FRI DEC 18 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST
SATURDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST SATURDAY.

PRECIPITATION TYPES AND ACCUMULATION... A MIXTURE OF MODERATE TO
OCCASIONALLY HEAVY SNOW AND SLEET IS EXPECTED ACROSS THE AREA
THROUGH THE REMAINDER OF THIS EVENING. SNOW ACCUMULATIONS OF 1 TO
3 INCHES... WITH LOCALLY HIGHER AMOUNTS ARE LIKELY THROUGH 10 PM.
THE HIGHEST ACCUMULATION AMOUNTS WILL OCCUR FROM KERR LAKE TO
OXFORD AND HENDERSON TO ROUGEMONT... WITH LESSER AMOUNTS FROM
DURHAM TO PITTSBORO. THE SNOW AND SLEET IS EXPECTED TO CHANGE TO A MIX OF
FREEZING RAIN AND RAIN BY MIDNIGHT... AND A GLAZE OF UP TO ONE
TENTH OF AN INCH IS POSSIBLE. THE PRECIPITATION WILL TAPER OFF TO
LIGHT FREEZING DRIZZLE SATURDAY MORNING... WITH LITTLE ADDITIONAL
ACCUMULATION.

TIMING AND DURATION...OCCASIONALLY MODERATE TO HEAVY PRECIPITATION
WILL BE WIDESPREAD ACROSS THE AREA TONIGHT.... THEN BECOME AND
REMAIN LIGHT UNTIL ENDING BY LATE SATURDAY AFTERNOON.

IMPACTS...TRAVELING WILL BECOME TREACHEROUS ACROSS THE WARNING
AREA THIS EVENING THROUGH TONIGHT. SNOW IS EXPECTED TO STICK TO
ROADS THIS EVENING... AND A GLAZE OF ICE WILL MAKE DRIVING EVEN
MORE HAZARDOUS AFTER MIDNIGHT. ISOLATED POWER OUTAGES ARE POSSIBLE
DUE TO THE COMBINATION OF SNOW AND GLAZE COATING THE TREES...AND
STRONG WIND GUSTS OF 25 TO 30 MPH. IN ADDITION... WIND CHILL
VALUES LATE THIS AFTERNOON THROUGH TONIGHT WILL OCCASIONALLY DROP
DOWN INTO THE TEENS.

$$

NCZ011-026>028-041>043-073>077-190915-
/O.CON.KRAH.WW.Y.0008.000000T0000Z-091220T0000Z/
HALIFAX-FRANKLIN-NASH-EDGECOMBE-WAKE-JOHNSTON-WILSON-STANLY-
MONTGOMERY-MOORE-LEE-HARNETT-
INCLUDING THE CITIES OF...ROANOKE RAPIDS...LOUISBURG...
NASHVILLE...ROCKY MOUNT...RALEIGH...SMITHFIELD...WILSON...
ALBEMARLE...TROY...SOUTHERN PINES...SANFORD...LILLINGTON
806 PM EST FRI DEC 18 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST
SATURDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST
SATURDAY. 

PRECIPITATION TYPES AND ACCUMULATION...AREAS OF SNOW AND POSSIBLY
SOME SLEET ARE EXPECTED TO CHANGE TO RAIN BY 10 PM. THE RAIN WILL
THEN CHANGE TO FREEZING DRIZZLE AROUND DAYBREAK... AND CONTINUE
INTO THE EARLY EVENING. A GLAZE OF ICE RANGING UP TO ONE TENTH OF
AN INCH IS POSSIBLE ON SATURDAY.

TIMING AND DURATION...OCCASIONALLY MODERATE TO HEAVY PRECIPITATION
WILL BE WIDESPREAD ACROSS THE AREA TONIGHT.... THEN BECOME AND
REMAIN LIGHT UNTIL ENDING BY LATE SATURDAY AFTERNOON.

IMPACTS...TRAVEL MAY BE HAZARDOUS THIS EVENING AND EARLY TONIGHT
AS SNOW MAY STICK ON BRIDGES AND OVERPASSES. ONCE THE
PRECIPITATION CHANGES TO FREEZING DRIZZLE TOMORROW MORNING...AN
ICY GLAZE WILL BE POSSIBLE FOR MOST OF THE DAY SATURDAY...AGAIN
MAINLY ON BRIDGES AND OVERPASSES.

$$

MWS

000 
WWUS42 KRAH 190424
WSWRAH

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RALEIGH NC
1124 PM EST FRI DEC 18 2009

...MAJOR WINTER STORM EXPECTED TO CONTINUE ACROSS CENTRAL NORTH
CAROLINA...

.A STRENGTHENING LOW PRESSURE SYSTEM WILL MOVE NORTHEASTWARD
ALONG THE COAST OF THE CAROLINAS TONIGHT...THEN UP THE MIDDLE
ATLANTIC AND NORTHEASTERN SEABOARD SATURDAY AND SATURDAY NIGHT.

NCZ007-021>023-038-039-191230-
/O.CON.KRAH.WS.W.0004.000000T0000Z-091220T0000Z/
PERSON-FORSYTH-GUILFORD-ALAMANCE-DAVIDSON-RANDOLPH-
INCLUDING THE CITIES OF...ROXBORO...WINSTON-SALEM...GREENSBORO...
HIGH POINT...BURLINGTON...LEXINGTON...ASHEBORO
1124 PM EST FRI DEC 18 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST
SATURDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST SATURDAY.

PRECIPITATION TYPE... INTENSITY... ACCUMULATION... AND DURATION...
FREEZING RAIN... MIXED AT TIMES THROUGH 2 AM WITH SLEET... WILL
CONTINUE OVERNIGHT. ICE ACCRUAL OF ONE TO TWO TENTHS OF AN INCH...
ON TOP OF THE EARLIER 3 TO 8 INCHES OF SNOW... IS LIKELY THROUGH
MID MORNING SATURDAY. THE FREEZING RAIN WILL DIMINISH TO LIGHT
FREEZING DRIZZLE AND PERSIST FOR THE REST OF THE DAY SATURDAY...
BUT WITH LITTLE ADDITIONAL ACCRUAL.

IMPACTS...ICE ACCRUAL ATOP THE SNOW PACK WILL MAKE TRAVELING TREACHEROUS
ACROSS THE AREA THROUGH SATURDAY. TRAVEL IS STRONGLY DISCOURAGED.
POWER OUTAGES ARE ALSO LIKELY DUE TO THE COMBINATION OF HEAVY
SNOW AND GLAZE OF ICE ON TREES AND POWER LINES... AND STRONG
NORTHEASTERLY WIND GUSTS OF 25 TO 35 MPH. IN ADDITION... WIND
CHILL VALUES WILL OCCASIONALLY DIP INTO THE TEENS OVERNIGHT.

$$

NCZ008>010-024-025-040-191230-
/O.CON.KRAH.WS.W.0004.000000T0000Z-091220T0000Z/
GRANVILLE-VANCE-WARREN-ORANGE-DURHAM-CHATHAM-
INCLUDING THE CITIES OF...OXFORD...HENDERSON...WARRENTON...
CHAPEL HILL...DURHAM...PITTSBORO
1124 PM EST FRI DEC 18 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST
SATURDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST SATURDAY.

PRECIPITATION TYPE... INTENSITY... ACCUMULATION... AND DURATION...
RAIN AND FREEZING TONIGHT WILL CHANGE TO FREEZING RAIN FROM WEST
TO EAST ACROSS THE WARNING AREA BETWEEN 4 AM AND 8 AM. A GLAZE OF
AROUND ONE TENTH OF AN INCH... ESPECIALLY ON ELEVATED SURFACES...
BRIDGES... AND OVERPASSES... IS LIKELY. THE PRECIPITATION WILL
DIMINISH TO LIGHT FREEZING DRIZZLE AND PERSIST FOR THE REST OF THE
DAY SATURDAY... BUT WITH LITTLE ADDITIONAL ACCRUAL.

IMPACTS...POWER OUTAGES ARE POSSIBLE DUE TO THE COMBINATION OF
EARLIER SNOW AND EXPECTED GLAZE OF ICE ON TREES AND POWER LINES...
AND STRONG NORTHEASTERLY WIND GUSTS OF 25 TO 35 MPH. DANGEROUS
TRAVEL CONDITIONS WILL ALSO CONTINUE AS THE GLAZE OF ICE DEVELOPS
ATOP THE EARLIER SNOW-COVERED ROADWAYS... PARTICULARLY ON BRIDGES
AND OVERPASSES.

$$

NCZ011-026>028-041>043-073>077-191230-
/O.CON.KRAH.WW.Y.0008.000000T0000Z-091220T0000Z/
HALIFAX-FRANKLIN-NASH-EDGECOMBE-WAKE-JOHNSTON-WILSON-STANLY-
MONTGOMERY-MOORE-LEE-HARNETT-
INCLUDING THE CITIES OF...ROANOKE RAPIDS...LOUISBURG...
NASHVILLE...ROCKY MOUNT...RALEIGH...SMITHFIELD...WILSON...
ALBEMARLE...TROY...SOUTHERN PINES...SANFORD...LILLINGTON
1124 PM EST FRI DEC 18 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST
SATURDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST
SATURDAY. 

PRECIPITATION TYPE... INTENSITY... ACCUMULATION... AND DURATION...
RAIN TONIGHT WILL CHANGE TO FREEZING RAIN FROM WEST TO EAST
ACROSS THE ADVISORY WARNING AREA BETWEEN 5 AM AND 9 AM. A GLAZE OF
AROUND ONE TENTH OF AN INCH... ESPECIALLY ON ELEVATED SURFACES...
BRIDGES... AND OVERPASSES... IS LIKELY. THE PRECIPITATION WILL
DIMINISH TO LIGHT FREEZING DRIZZLE AND PERSIST FOR THE REST OF THE
DAY SATURDAY... BUT WITH LITTLE ADDITIONAL ACCRUAL.

IMPACTS...THE COMBINATION OF THE EXPECTED GLAZE OF ICE ON TREES
AND POWER LINES... AND STRONG NORTHEASTERLY WIND GUSTS OF 20 TO 30
MPH... MAY LEAD TO ISOLATED POWER OUTAGES. DANGEROUS TRAVEL CONDITIONS
MAY ALSO DEVELOP AND PERI ST THROUGH THE DAY SATURDAY... AS BRIDGES AND
OVERPASSES WILL ALSO BE PRONE TO A GLAZE OF ICE.

$$

MWS

000 
WWUS42 KRAH 190932
WSWRAH

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RALEIGH NC
432 AM EST SAT DEC 19 2009

...WINTER STORM CONDITIONS SLOWLY ABATING ACROSS CENTRAL NORTH
CAROLINA...

.A STRONG AREA OF LOW PRESSURE WILL MOVE NORTHEAST ALONG THE NORTH
CAROLINA COAST THIS MORNING...THEN UP THE MIDDLE ATLANTIC AND
NORTHEASTERN SEABOARD THIS AFTERNOON AND TONIGHT. 

NCZ007-021>023-038-039-191700-
/O.CON.KRAH.WS.W.0004.000000T0000Z-091220T0000Z/
PERSON-FORSYTH-GUILFORD-ALAMANCE-DAVIDSON-RANDOLPH-
INCLUDING THE CITIES OF...ROXBORO...WINSTON-SALEM...GREENSBORO...
HIGH POINT...BURLINGTON...LEXINGTON...ASHEBORO
432 AM EST SAT DEC 19 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING. 

PRECIPITATION TYPE... INTENSITY... ACCUMULATION...AND DURATION...
AREAS OF FREEZING RAIN OR FREEZING DRIZZLE WILL CONTINUE THROUGH
THIS MORNING...THEN TAPER OFF THIS AFTERNOON. ICE ACCRUAL UP TO 
TWO TENTHS OF AN INCH... ON TOP OF THE EARLIER 3 TO 8 INCHES OF
SNOW... IS PROBABLE THROUGH LATE MORNING. NO ADDITIONAL ICE
ACCRUAL IS EXPECTED THIS AFTERNOON.

IMPACTS...ICE ACCRUAL ATOP THE SNOW PACK WILL MAKE TRAVELING
TREACHEROUS ACROSS THE AREA TODAY. TRAVEL IS STRONGLY
DISCOURAGED. POWER OUTAGES ARE ALSO PROBABLE DUE TO THE
COMBINATION OF HEAVY SNOW AND GLAZE OF ICE ON TREES AND POWER
LINES... AND STRONG NORTHERLY WIND GUSTS OF 25 TO 30 MPH. 
 
$$

NCZ008>010-024-025-040-191715-
/O.CON.KRAH.WS.W.0004.000000T0000Z-091220T0000Z/
GRANVILLE-VANCE-WARREN-ORANGE-DURHAM-CHATHAM-
INCLUDING THE CITIES OF...OXFORD...HENDERSON...WARRENTON...
CHAPEL HILL...DURHAM...PITTSBORO
432 AM EST SAT DEC 19 2009

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING. 

PRECIPITATION TYPE... INTENSITY... ACCUMULATION... AND DURATION...
RAIN WILL TRANSITION TO FREEZING RAIN THIS MORNING AS NORTHERLY
WINDS ON THE BACK SIDE OF A STRONG LOW PRESSURE SYSTEM PULL COLDER
AIR INTO THE REGION. A GLAZE OF ONE TENTH OF AN INCH... ESPECIALLY
ON ELEVATED SURFACES... BRIDGES... AND OVERPASSES... IS LIKELY.
THE PRECIPITATION WILL DIMINISH TO LIGHT FREEZING DRIZZLE AROUND
MID DAY AND PERSIST THROUGH SATURDAY AFTERNOON. LITTLE IF ANY
ADDITIONAL ICE ACCRUAL IS EXPECTED THIS AFTERNOON.

IMPACTS...POWER OUTAGES ARE POSSIBLE DUE TO THE COMBINATION OF
EARLIER SNOW AND EXPECTED GLAZE OF ICE ON TREES AND POWER LINES...
AND STRONG NORTHEASTERLY WIND GUSTS OF 25 TO 30 MPH. DANGEROUS
TRAVEL CONDITIONS WILL ALSO CONTINUE AS THE GLAZE OF ICE DEVELOPS
ATOP THE EARLIER SNOW-COVERED ROADWAYS... PARTICULARLY ON BRIDGES
AND OVERPASSES.

$$

NCZ011-026>028-041>043-073>077-191700-
/O.CON.KRAH.WW.Y.0008.000000T0000Z-091220T0000Z/
HALIFAX-FRANKLIN-NASH-EDGECOMBE-WAKE-JOHNSTON-WILSON-STANLY-
MONTGOMERY-MOORE-LEE-HARNETT-
INCLUDING THE CITIES OF...ROANOKE RAPIDS...LOUISBURG...
NASHVILLE...ROCKY MOUNT...RALEIGH...SMITHFIELD...WILSON...
ALBEMARLE...TROY...SOUTHERN PINES...SANFORD...LILLINGTON
432 AM EST SAT DEC 19 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING. 

PRECIPITATION TYPE... INTENSITY... ACCUMULATION... AND DURATION...
WIDESPREAD RAIN AND DRIZZLE EARLY THIS MORNING WILL TRANSITION TO
AREAS OF FREEZING RAIN OR FREEZING DRIZZLE BY MID MORNING AS
NORTHERLY WINDS USHER COLDER AIR INTO THE REGION. A THIN GLAZE OF
ICE ACCRUAL... ESPECIALLY ON ELEVATED SURFACES... BRIDGES... AND
OVERPASSES... IS LIKELY. ICE ACCRUAL WILL BEGIN ONCE THE SURFACE
TEMPERATURE DIPS BELOW 32 DEGREES. THE PRECIPITATION WILL
DIMINISH TO LIGHT FREEZING DRIZZLE THIS AFTERNOON. NO ADDITIONAL
ICE ACCRUAL IS EXPECTED THIS AFTERNOON.

IMPACTS...THE COMBINATION OF THE EXPECTED GLAZE OF ICE ON TREES
AND POWER LINES... AND STRONG NORTHERLY WIND GUSTING UP TO 25 MPH
MAY LEAD TO ISOLATED POWER OUTAGES. DANGEROUS TRAVEL CONDITIONS
MAY ALSO DEVELOP ON BRIDGES AND OVERPASSES LATER THIS MORNING AND
PERSIST THROUGH THIS AFTERNOON.

$$

000 
WWUS42 KRAH 191312
WSWRAH

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RALEIGH NC
812 AM EST SAT DEC 19 2009

...WINTER STORM CONDITIONS SLOWLY ABATING ACROSS CENTRAL NORTH
CAROLINA...

.A STRONG AREA OF LOW PRESSURE WILL MOVE NORTHEAST ALONG THE
NORTH CAROLINA COAST THIS MORNING...THEN UP THE NORTHERN MIDDLE
ATLANTIC AND NORTHEAST SEABOARD THIS AFTERNOON AND TONIGHT.

NCZ007>010-021>025-038>040-192100-
/O.CAN.KRAH.WS.W.0004.000000T0000Z-091220T0000Z/
/O.EXA.KRAH.WW.Y.0008.000000T0000Z-091220T0000Z/
PERSON-GRANVILLE-VANCE-WARREN-FORSYTH-GUILFORD-ALAMANCE-ORANGE-
DURHAM-DAVIDSON-RANDOLPH-CHATHAM-
INCLUDING THE CITIES OF...ROXBORO...OXFORD...HENDERSON...
WARRENTON...WINSTON-SALEM...GREENSBORO...HIGH POINT...
BURLINGTON...CHAPEL HILL...DURHAM...LEXINGTON...ASHEBORO...
PITTSBORO
812 AM EST SAT DEC 19 2009

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 7 PM EST THIS
EVENING...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A WINTER
WEATHER ADVISORY WHICH IS IN EFFECT UNTIL 7 PM EST THIS EVENING.
THIS ADVISORY REPLACES THE WINTER STORM WARNING WHICH HAS BEEN
CANCELED.

PRECIPITATION TYPE... INTENSITY... ACCUMULATION... AND
DURATION... WIDESPREAD FREEZING OR FREEZING RAIN DRIZZLE..MIXED AT
TIMES WITH SLEET OR LIGHT SNOW EARLY THIS MORNING WILL CONTINUE
ACROSS THE REGION THROUGH MID DAY THEN DIMINISH THIS AFTERNOON. 
A THIN GLAZE OF ICE ACCRUAL... ESPECIALLY ON ELEVATED SURFACES...
BRIDGES... AND OVERPASSES... IS LIKELY. ICE ACCRUAL WILL BEGIN
ONCE THE SURFACE TEMPERATURE DIPS BELOW 32 DEGREES. THE
PRECIPITATION WILL DIMINISH TO LIGHT FREEZING DRIZZLE THIS
AFTERNOON. NO ADDITIONAL ICE ACCRUAL IS EXPECTED THIS AFTERNOON.

IMPACTS...THE COMBINATION OF THE EXPECTED GLAZE OF ICE ON TREES
AND POWER LINES... AND STRONG NORTHERLY WIND GUSTING UP TO 25 MPH
MAY LEAD TO ISOLATED POWER OUTAGES. TREACHEROUS TRAVEL CONDITIONS
WILL LINGER ON BRIDGES AND OVERPASSES THROUGH THIS AFTERNOON.

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.

$$

NCZ011-027-028-042-043-077-191415-
/O.CAN.KRAH.WW.Y.0008.000000T0000Z-091220T0000Z/
HALIFAX-NASH-EDGECOMBE-JOHNSTON-WILSON-HARNETT-
INCLUDING THE CITIES OF...ROANOKE RAPIDS...NASHVILLE...
ROCKY MOUNT...SMITHFIELD...WILSON...LILLINGTON
812 AM EST SAT DEC 19 2009

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS CANCELED THE WINTER
WEATHER ADVISORY. 

BASIS...TEMPERATURES ARE EXPECTED TO REMAIN ABOVE FREEZING THROUGH
MOST OF THE MORNING. ONCE THE TEMPERATURE FALLS BELOW
FREEZING...THE PRECIP MAY TRANSITION TO LIGHT FREEZING DRIZZLE
BEFORE THE DRIZZLE ENDS. LITTLE IF ANY ICE ACCRUAL IS NOW EXPECTED
ACROSS THIS REGION,



$$

NCZ026-041-073>076-192100-
/O.CON.KRAH.WW.Y.0008.000000T0000Z-091220T0000Z/
FRANKLIN-WAKE-STANLY-MONTGOMERY-MOORE-LEE-
INCLUDING THE CITIES OF...LOUISBURG...RALEIGH...ALBEMARLE...
TROY...SOUTHERN PINES...SANFORD
812 AM EST SAT DEC 19 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING. 

PRECIPITATION TYPE... INTENSITY... ACCUMULATION... AND DURATION...
WIDESPREAD RAIN AND DRIZZLE EARLY THIS MORNING WILL TRANSITION
TO AREAS OF FREEZING RAIN OR FREEZING DRIZZLE BY MID MORNING AS
NORTHERLY WINDS USHER COLDER AIR INTO THE REGION. A THIN GLAZE OF
ICE ACCRUAL... ESPECIALLY ON ELEVATED SURFACES... BRIDGES... AND
OVERPASSES... IS LIKELY. ICE ACCRUAL WILL BEGIN ONCE THE SURFACE
TEMPERATURE DIPS BELOW 32 DEGREES. THE PRECIPITATION WILL
DIMINISH TO LIGHT FREEZING DRIZZLE THIS AFTERNOON. NO ADDITIONAL
ICE ACCRUAL IS EXPECTED THIS AFTERNOON.

IMPACTS...THE COMBINATION OF THE EXPECTED GLAZE OF ICE ON TREES
AND POWER LINES... AND STRONG NORTHERLY WIND GUSTING UP TO 25 MPH
MAY LEAD TO ISOLATED POWER OUTAGES. DANGEROUS TRAVEL CONDITIONS
MAY ALSO DEVELOP ON BRIDGES AND OVERPASSES LATER THIS MORNING AND
PERSIST THROUGH THIS AFTERNOON.

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RALEIGH NC
415 PM EST THU DEC 17 2009

.SYNOPSIS...
COLD HIGH PRESSURE WILL PERSIST OVER THE REGION TONIGHT. A MAJOR
STORM SYSTEM DEVELOPING OVER THE GULF WILL TRACK ACROSS NORTHERN
FLORIDA THEN NORTHEAST ALONG THE SOUTHEAST AND CAROLINA COAST FRIDAY
THROUGH SATURDAY.

&&

.NEAR TERM /THROUGH TONIGHT/...
AS OF 1100 AM THURSDAY...

A 1034 MB MODIFIED ARCTIC HIGH PRESSURE OVER THE GREAT LAKES AND OH
VALLEY WILL BUILD EAST OVER THE NORTHEAST US AND MID-ATLANTIC STATES
TODAY. SHORTWAVE RIDGE ALOFT WILL HOLD OVER THE SE US TODAY BEFORE
SHIFTING OFFSHORE THIS EVENING. WITH DEEP LAYER RIDGING ROOTED OVER
THE REGION...EXPECT THE ASSOCIATED SUBSIDENCE TO THIN OUT THE
CIRRUS EMANATING FROM THE UPPER LOW OVER SOUTH TEXAS AND THE
DEVELOPING STORM SYSTEM OVER THE GULF OF MEXICO. THICKNESSES
TODAY ARE STARTING OUT APPROXIMATELY 14 TO 15 METERS WARMER
COMPARED TO YESTERDAY...WITH VERY LITTLE DIURNAL OR THERMAL
ADVECTION EXPECTED. THUS HIGHS VERY CLOSE OR SLIGHTLY WARMER THAN
YESTERDAY. HIGHS IN THE UPPER 40S NORTH TO LOWER/MID 50S SOUTH.

SOUTHERN STREAM LOW OVER SOUTH TEXAS KICKS EAST-NORTHEAST THIS
EVENING AND TONIGHT...INITIATING CYCLOGENESIS OVER THE NORTHERN
GULF/FLORIDA PANHANDLE BY 12 FRIDAY. PRECIP WILL REMAIN WELL
SOUTH OF THE AREA BUT WE WILL SEE A THICKENING MID AND HIGH
CLOUD DECK OVERSPREAD THE AREA. WILL ERR TOWARDS THE WARMER MOS
GUIDANCE WITH FORECAST LOWS TONIGHT...FROM THE UPPER 20S TO LOWER
30S.

&&

.SHORT TERM /FRIDAY THROUGH SUNDAY/...
AS OF 410 PM THURSDAY...

...A SIGNIFICANT WINTER STORM SYSTEM IS EXPECTED TO AFFECT PORTIONS
OF CENTRAL NORTH CAROLINA FRIDAY THROUGH SATURDAY...

THE WINTER STORM WATCH HAS BEEN UPGRADED TO A WINTER STORM WARNING
FOR THE NORTHWEST PIEDMONT INCLUDING ROXBORO AND THE TRIAD... AND TO
A WINTER WEATHER ADVISORY FOR MUCH OF THE REST OF THE PIEDMONT AND
NORTHERN COASTAL PLAIN INCLUDING THE TRIANGLE... ALBEMARLE... AND
ROCKY MOUNT.

IMPACTS OVERVIEW: PRECIPITATION IS EXPECTED TO OVERSPREAD CENTRAL NC
FROM THE SOUTHWEST LATE FRIDAY MORNING INTO EARLY AFTERNOON...
ENGULFING THE ENTIRE CWA BY MID AFTERNOON. STEADY PRECIP... MAINLY
SNOW AND SLEET OVER THE NORTHWEST AND A WINTRY MIX OVER THE ADVISORY
AREA... SHOULD PERSIST THROUGH FRIDAY NIGHT... TAPERING OFF TO
LIGHTER PRECIP... POSSIBLE DRIZZLE OR FREEZING DRIZZLE... FROM SOUTH
TO NORTH SATURDAY MORNING AS WE LOSE SATURATION ALOFT. WRAPAROUND
SNOW AS THE COASTAL LOW DEPARTS MAY BRING A SECOND SHOT OF
MEASURABLE SNOW TO THE FAR NORTHERN CWA SATURDAY AFTERNOON. SNOW AND
SLEET ACCUMULATIONS OF THREE TO FIVE INCHES ARE EXPECTED IN THE
WARNING AREA... WITH ONE TO TWO INCHES IN THE ADVISORY AREA WITH
LIGHT ICING.

SYNOPTIC PICTURE AND MODEL DIFFERENCES: IN SHORT... THIS IS A
DIFFICULT FORECAST IN MANY RESPECTS. THE DEVELOPING LOW IS EXPECTED
TO TRAVERSE THE GA/FL BORDER FRIDAY MORNING... MOVING TO OFF THE SAV
COAST IN THE AFTERNOON... THEN TRACKING OFF THE CAROLINA COAST
FRIDAY NIGHT THROUGH SATURDAY MORNING BEFORE HEADING AWAY FROM THE
NC COAST SATURDAY AFTERNOON. THE LATEST NAM AND ECMWF HAVE LOWER MID
LEVEL HEIGHTS AND SHOW THE SURFACE LOW HUGGING CLOSE TO THE COAST...
DEEPENING RAPIDLY OFF COROLLA SATURDAY MORNING... AND THUS PULLING A
BIT WARMER AIR ALOFT FURTHER WESTWARD LEADING TO A GREATER CHANCE OF
A WINTRY MIX VERSUS JUST SNOW... WHEREAS THE GFS AND CANADIAN TAKE
THE LOW ON A MORE EASTERLY TRACK AND THUS FAVOR COLDER MID LEVELS
AND MORE SNOW THAN A MIX. NEITHER CAMP OF MODELS IS A CLEAR
WINNER... HOWEVER THE 12Z GEFS MEAN SHOWS A TREND TOWARD THE
NAM/ECMWF. FORECAST WAS BASED PRIMARILY ON THE NAM BUT ADJUSTED FOR
THE POTENTIAL OF A LOW SLIGHTLY FARTHER EAST.

LIFT/MOISTURE FACTORS AND PRECIP TYPE: ISENTROPIC UPGLIDE INCREASES
QUICKLY FRIDAY MORNING... ALTHOUGH IT WILL TAKE A FEW HOURS TO
SATURATE THE DRY SUBCLOUD LAYER. FORECAST SOUNDINGS INDICATE
SATURATION AREAWIDE BY 21Z FRIDAY... ALL BELOW FREEZING OVER ALL BUT
THE SOUTHERN AND SOUTHEAST CWA. AS SUCH EXPECT PRECIP TO START AS
MAINLY SNOW OVER THE NORTH AND MOSTLY RAIN POSSIBLY MIXED WITH A
LITTLE SLEET AT THE START OVER THE SOUTH. THEN FRIDAY EVENING...
UPPER DIVERGENCE ASSOCIATED WITH THE RIGHT ENTRANCE REGION OF THE
JET OFF THE NORTHEAST COAST REACHES ITS PEAK IN CONJUNCTION WITH THE
MOIST UPGLIDE. WITH THE NAM SHOWING THE WARMING ALOFT... WIDESPREAD
PRECIP SHOULD TRANSITION TO A WINTRY MIX OF SNOW... SLEET... AND
FREEZING RAIN. SNOW AND SLEET SHOULD STILL BE DOMINANT IN THE
WARNING AREA... BUT IT IS DIFFICULT TO DETERMINE WHICH PRECIP TYPE
WILL DOMINATE OVER THE ADVISORY AREA SINCE MUCH WILL DEPEND ON
PRECIP RATES... AND EVEN A MINOR ERROR IN THE LOWS TRACK WILL
PRODUCE A CHANGE IN PRECIP TYPE. BUT TYPICALLY WITH A MILLER-TYPE-A
SINGLE LOW CYCLOGENESIS PATTERN WILL PRODUCE CORRIDORS OF
PREDOMINANT PRECIP TYPE. AS SUCH... PRECIP TYPE IS LIKELY TO WAVER
AMONG SNOW... SLEET... AND FREEZING RAIN OVER MUCH OF THE ADVISORY
AREA FRIDAY NIGHT. ICING ACCUMULATION SHOULD BE LIMITED BY THE FACT
THAT THE LOW LEVEL COLD AIR WILL NOT BE LOCKED IN AT THE SURFACE. BY
SATURDAY MORNING... THE BETTER LIFT GENERATED BY UPPER DIVERGENCE
AND MID LEVEL FRONTOGENESIS WANES CONSIDERABLY AS THE LOW HEADS
NORTH OF OUR LATITUDE. THE LOW LEVELS COOL BUT REMAIN SATURATED
SATURDAY AFTERNOON. WRAPAROUND SNOWS REMAIN POSSIBLE ACROSS THE
NORTHERN PORTIONS OF CENTRAL NC THROUGH THE DAY... AND ADDITIONAL
LIGHT ACCUMULATION IS POSSIBLE BEFORE PRECIP CHANCES END SATURDAY
EVENING. EXPECT VARIABLY CLOUDY AND DRY WEATHER SUNDAY WITH
DOWNSLOPE FLOW.

TEMPERATURES WILL VARY ONLY A CATEGORY OR TWO FROM NIGHT TO DAY
THROUGH SUNDAY. LOWS WILL BE IN THE UPPER 20S TO MID 30S FRIDAY
NIGHT... AND IN THE MID 20S TO LOWER 30 SATURDAY NIGHT. HIGHS MOSTLY
IN THE 30S. AREAS OF RESIDUAL ICE AND SNOW ARE POSSIBLE SUNDAY
MORNING... AND LINGERING ADVISORIES FOR BLACK ICE AND TREACHEROUS
TRAVEL MAY BE NEEDED WELL INTO SUNDAY. -GIH

&&

.LONG TERM/SUNDAY NIGHT THROUGH THURSDAY/...
AS OF 300 PM THURSDAY...

THE MID ATLANTIC REGION WILL REMAIN UNDER THE INFLUENCE OF A COLD
UPPER TROUGH...IN ASSOCIATION WITH THE CUT-OFF LOW/REX BLOCKING
PATTERN THAT IS IN PLACE OVER GREENLAND AND EASTERN CANADA. THIS
WILL SPELL A CONTINUATION OF WELL BELOW NORMAL TEMPERATURES ACROSS
CENTRAL NORTH CAROLINA THROUGH THE PERIOD...WITH DAYTIME HIGHS
STRUGGLING TO CLIMB OUT OF THE UPPER 30S ACROSS THE NW PIEDMONT...TO
LOWER TO MID 40S ACROSS THE SOUTHEAST. LOWS 20 TO 25...WITH SOME
TEENS IN OUTLYING/RURAL AREAS.

MODELS DEPICT A SERIES OF CLIPPER WAVE(S) DIVING SE ACROSS THE
MID-ATLANTIC REGION IN THE DEEP NWLY FLOW ALOFT THROUGH EARLY NEXT
WEEK. CENTRAL NC LOOKS TO BE ON THE SOUTHERN PERIPHERY OF BETTER
LIFT/DEEPER MOISTURE...SO WILL KEEP FORECAST DRY AT THIS TIME.
BY WEDNESDAY AND INTO THURSDAY...THERE IS INCREASING
SPREAD/UNCERTAINTY AMONG THE NWP MODEL GUIDANCE ON THE
INTENSITY...TRACK AND TIMING WITH PACIFIC SHORTWAVE ENERGY AS
IT EJECTS EAST THROUGH THE PLAINS...REACHING THE SOUTHERN/CENTRAL
APPALACHIANS IN THE THURSDAY(CHRISTMAS EVE)/FRIDAY(CHRISTMAS DAY)
TIME PERIOD...AND A POTENTIAL CATALYST FOR ANOTHER SIGNIFICANT
WINTER STORM.

&&

.AVIATION /18Z THURSDAY THROUGH TUESDAY/...
AS OF 100 PM THURSDAY...

MID/UPPER LEVEL CEILINGS WILL INCREASE FROM THE SOUTH TONIGHT AS A
LOW PRESSURE SYSTEM DEVELOPS IN THE GULF OF MEXICO...HOWEVER...
CEILINGS ARE EXPECTED TO REMAIN AOA 10 KFT THROUGH 12Z FRI.

IFR/LIFR CONDITIONS ARE THEN EXPECTED TO DEVELOP DURING THE
DAY ON FRIDAY...AFTER 18Z...AND CONTINUE THROUGH SATURDAY NIGHT
AS THE AREA OF LOW PRESSURE TRACKS UP THE SE COAST. A WINTERY
PRECIPITATION IS POSSIBLE AT KRDU...KGSO...AND KINT. MEANWHILE
AT KFAY AND KRWI PRECIPITATION SHOULD BE ALL RAIN. WINDS WILL
STRENGTHEN AS WELL...AS NE WINDS AT AROUND 2KFT INCREASE TO
2KFT...BUT GIVEN THE UNIDIRECTIONAL FLOW WITH SURFACE WINDS
15 TO 20KTS...WILL LIKELY BE MORE MECHANICAL TURBULENCE AS OPPOSE TO
TRUE LLWS. THE WINDS AND PRECIP WILL DIMINISH ON SATURDAY  AS THE
LOW PRESSURE MOVES AWAY FROM THE CAROLINAS...BUT THE IFR/LIFR
CEILINGS COULD STAY AROUND THROUGH SUNDAY MORNING WITH
VFR CONDITIONS RETURNING SUNDAY AFTERNOON INTO MONDAY.

&&

.RAH WATCHES/WARNINGS/ADVISORIES...
WINTER WEATHER ADVISORY FROM NOON FRIDAY TO 7 PM EST SATURDAY
FOR NCZ008>011-024>028-040-041-043-073>076.
WINTER STORM WARNING FROM NOON FRIDAY TO 7 PM EST SATURDAY FOR
NCZ007-021>023-038-039.

&&

SYNOPSIS...HARTFIELD
NEAR TERM...CBL
SHORT TERM...HARTFIELD
LONG TERM...CBL
AVIATION...CBL

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RALEIGH NC
410 AM EST THU DEC 17 2009

NCZ007>010-021>026-038>041-073>076-180915-
PERSON-GRANVILLE-VANCE-WARREN-FORSYTH-GUILFORD-ALAMANCE-ORANGE-
DURHAM-FRANKLIN-DAVIDSON-RANDOLPH-CHATHAM-WAKE-STANLY-MONTGOMERY-
MOORE-LEE-
410 AM EST THU DEC 17 2009

...WINTER STORM WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SATURDAY EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   WINTER STORM WATCH.

NCZ011-027-028-042-043-077-078-083>086-088-089-180915-
HALIFAX-NASH-EDGECOMBE-JOHNSTON-WILSON-HARNETT-WAYNE-ANSON-RICHMOND-
SCOTLAND-HOKE-CUMBERLAND-SAMPSON-
410 AM EST THU DEC 17 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

21