Alert archive / North Carolina / Snow Advisories in 2005

Snow Advisory 1, NWS Greenville-Spartanburg, SC

November 21, 20057 counties in North Carolina

NWS Greenville-Spartanburg, SC issued this snow advisory at Nov 21, 2005, 4:09 PM EST for 7 counties in North Carolina. It took effect at Nov 22, 2005, 12:00 AM EST. It was in force for .

The area

The counties it named.

The facts

Issued
Nov 21, 2005, 4:09 PM EST (21:09 UTC)
In effect from
Nov 22, 2005, 12:00 AM EST
Expired
Nov 21, 2005, 10:17 PM EST
In force
Issued by
NWS Greenville-Spartanburg, SC

Counties Avery County, NC, Graham County, NC, Haywood County, NC, Madison County, NC, Mitchell County, NC, Swain County, NC, Yancey County, NC

The radar

The Knoxville radar (KMRX), 73 km from the middle of the area, began a volume at 21:10 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

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

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 9.2 hours before the alert went out and 308 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, Peachtre/Fal Fld, GA at 12:00Z on 2005-11-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 2005-11-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 73 square meters per square second.1939587897Sfc1 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
467 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
60 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

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

NWS Greenville-Spartanburg, SC wrote its last area forecast discussion before this snow advisory went out at Nov 21, 3:15 PM EST, 54 minutes earlier.

Area forecast discussion, Nov 21, 3:15 PM EST, 54 minutes before
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Hazardous weather outlook, Nov 21, 6:14 AM EST, 9 hours 55 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
614 AM EST MON NOV 21 2005

GAZ018-026-028-029-NCZ034>037-054>057-066>072-082-SCZ004>014-019-
221115-
STEPHENS-FRANKLIN-HART-ELBERT-CALDWELL-ALEXANDER-IREDELL-DAVIE-
MCDOWELL-BURKE-CATAWBA-ROWAN-POLK-RUTHERFORD-CLEVELAND-LINCOLN-
GASTON-MECKLENBURG-CABARRUS-UNION NC-GREATER OCONEE-
GREATER PICKENS-GREATER GREENVILLE-SPARTANBURG-CHEROKEE-YORK-
ANDERSON-ABBEVILLE-LAURENS-UNION SC-CHESTER-GREENWOOD-
614 AM EST MON NOV 21 2005

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE FOOTHILLS AND PIEDMONT
OF NORTHEAST GEORGIA...AS WELL AS WESTERN NORTH AND SOUTH
CAROLINA.

.DAY ONE...TODAY AND TONIGHT

PERIODS OF MODERATE TO HEAVY RAIN WILL IMPACT THE REGION THROUGH
THIS EVENING. PONDING OF WATER ON ROADS...AND IN POOR DRAINAGE
AREAS...IS POSSIBLE THIS AFTERNOON AND EVENING...WHEN THE HEAVIEST
RAINFALL IS ANTICIPATED. RAIN IS EXPECTED TO BECOME A BIT MORE
SCATTERED FOR NORTHEAST GEORGIA AND UPSTATE SOUTH CAROLINA
OVERNIGHT...BUT MOST OF WESTERN NORTH CAROLINA WILL CONTINUE TO
SEE RAIN DURING THE NIGHT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

BREEZY TO WINDY CONDITIONS WILL BE EXPERIENCED FOR MOST FOOTHILL
AND PIEDMONT LOCATIONS TUESDAY...BUT SKIES WILL GRADUALLY CLEAR
AND AT THIS TIME...NO RAIN IS EXPECTED DURING THE DAYLIGHT HOURS
ON TUESDAY. MOSTLY FAIR WEATHER...ALBEIT COOL AND AT TIMES
BREEZY...WILL DOMINATE THE LONGER RANGES OF THE FORECAST. CLOUDS
ARE EXPECTED TO THICKEN AND LOWER AGAIN WEDNESDAY NIGHT AND
THANKSGIVING DAY IN NORTH CAROLINA...AHEAD OF AN UPPER LEVEL
DISTURBANCE BUT ONLY VERY SMALL CHANCES OF PRECIPITATION ARE ANTICIPATED.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED...BUT ANY INFORMATION ON
RAINFALL AMOUNTS OR WIND SPEEDS TODAY THROUGH TUESDAY WOULD BE
APPRECIATED.

GAZ010-017-NCZ033-048>053-058-059-062>065-SCZ001>003-221115-
RABUN-HABERSHAM-AVERY-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-
BUNCOMBE-GRAHAM-NORTHERN JACKSON-MACON-SOUTHERN JACKSON-
TRANSYLVANIA-HENDERSON-OCONEE MOUNTAINS-PICKENS MOUNTAINS-
GREENVILLE MOUNTAINS-
614 AM EST MON NOV 21 2005

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE MOUNTAINS OF
NORTHEAST GEORGIA AND THE WESTERN CAROLINAS.

.DAY ONE...TODAY AND TONIGHT

RAIN WILL AFFECT THE MOUNTAINS MOST OF TODAY...BECOMING A BIT
HEAVIER TOWARD EVENING. OVERNIGHT...MUCH COLDER AIR WILL BEGIN TO
LOWER FREEZING LEVELS...WITH PRECIPITATION GRADUALLY TRANSITIONING
TO A RAIN/SNOW MIXTURE...AND BECOMING ALL SNOW IN THE NORTH
CAROLINA MOUNTAINS BY TUESDAY MORNING. THERE IS THE POSSIBILITY OF
A BRIEF RAIN/SNOW MIXTURE IN THE HIGHER GEORGIA MOUNTAINS ALSO.

BY DAYBREAK TUESDAY...SNOWFALL MAY ACCUMULATE UP TO TWO INCHES AT
HIGHER ELEVATIONS NEAR THE TENNESSEE BORDER. TRACE AMOUNTS MAY
REACH AS FAR INTO THE INTERIOR MOUNTAINS AS ASHEVILLE AND BREVARD.

TEMPERATURES WILL TUMBLE INTO THE 20S OVERNIGHT...WITH WIND SPEEDS
INCREASING TO BETWEEN 15 AND 25 MPH. WIND GUSTS AT HIGHER
ELEVATIONS COULD APPROACH 50 MPH BY DAYBREAK TUESDAY.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

SNOW SHOWERS WILL LINGER ACROSS THE MOUNTAINS TUESDAY
MORNING...ENDING FROM THE SOUTH IN THE AFTERNOON AS PRECIPITATION
TRANSITIONS BACK TO A RAIN/SNOW MIXTURE IN MOUNTAIN VALLEYS WITH
DAYTIME HEATING. AN ADDITIONAL INCH OF ACCUMULATION MAY FALL AT
HIGHER ELEVATIONS TUESDAY MORNING. TEMPERATURES WILL CLIMB ONLY A
BIT WITH CONTINUED NORTHWEST WINDS AT 20 TO 30 MPH...WITH GUSTS TO
NEAR 50 MPH POSSIBLE AT HIGHER ELEVATIONS. WIND CHILLS COULD
BRIEFLY FALL BELOW ZERO TUESDAY NIGHT AT HIGHER ELEVATIONS.

A FAST-MOVING UPPER LEVEL SYSTEM WILL RETURN GUSTY WINDS AND THE
CHANCE OF SNOW TO TENNESSEE BORDER AREAS LATE WEDNESDAY NIGHT INTO
THANKSGIVING MORNING. AS OF NOW...IT APPEARS SOME LIGHT SNOW
ACCUMULATIONS MAY BE OBSERVED NEAR THE TENNESSEE BORDER WITH THIS SYSTEM.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED TODAY OR TONIGHT. HOWEVER...ANY
INFORMATION TRAINED SPOTTERS CAN PROVIDE REGARDING RAINFALL OR
SNOWFALL AMOUNTS...ALONG WITH WIND SPEEDS...WOULD BE GREATLY
APPRECIATED.

44

In the hours before

Special weather statement, Nov 21, 4:07 PM EST, 2 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
407 PM EST MON NOV 21 2005

GAZ010-017-018-026-028-029-SCZ001-002-004-005-010-011-212300-
ABBEVILLE-ANDERSON-ELBERT-FRANKLIN GA-GREATER OCONEE-GREATER PICKENS-
HABERSHAM-HART-OCONEE MOUNTAINS-PICKENS MOUNTAINS-RABUN-STEPHENS-
INCLUDING THE CITIES OF...ABBEVILLE...ANDERSON...CLARKESVILLE...
CLAYTON...ELBERTON...HARTWELL...TOCCOA
407 PM EST MON NOV 21 2005

...HEAVY RAIN SHOWERS AND STRONG WINDS MOVING INTO NORTHEAST
GEORGIA...

AT 345 PM EST...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF
HEAVY RAIN SHOWERS WITH A FEW EMBEDDED THUNDERSTORMS ACCOMPANIED BY
STRONG GUSTY WINDS MOVING INTO NORTHEAST GEORGIA. THIS LINE EXTENDS
NORTHWEST TO SOUTHEAST FROM BATESVILLE...TO CORNELIA...TO
CARNESVILLE...TO BOWMAN.

THIS STORM IS MOVING NORTHEAST AT 35 MPH AND IS EXPECTED TO MAINTAIN
ITS STRENGTH AS IT SWEEPS ACROSS THE WESTERN PORTIONS OF UPSTATE
SOUTH CAROLINA THROUGH 600 PM. STRONG WINDS UP TO 30 MPH WITH SOME
HIGHER GUSTS WILL BE POSSIBLE WITH THIS STORM. ADDITIONALLY...
RAINFALL RATES WILL BE ON THE ORDER OF ONE INCH PER HOUR.

SOME LOCALIZED FLOODING COULD OCCUR IN LOW LYING AREAS AND ROADWAYS
WILL HAVE ENOUGH RAINFALL TO PRODUCE HYDRO-PLANING CONDITIONS.
MOTORISTS ARE URGED TO USE CAUTION...ESPECIALLY AFTER SUNSET WHEN
FLOODED ROADS WILL BE HARD TO SEE.

KRENTZ

Nearby

Snow Advisories in North Carolina, 2005Every snow advisory in 2005

Sources

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