Alert archive / North Carolina / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 249, NWS Raleigh, NC

December 1, 20104 counties in North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Dec 1, 2010, 1:41 AM EST for 4 counties in North Carolina. It was in force for 64 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Dec 1, 2010, 1:41 AM EST (06:41 UTC)
Expired
Dec 1, 2010, 2:45 AM EST
In force
64 min
Issued by
NWS Raleigh, NC
Area
Storm-based polygon

Counties Anson County, NC, Montgomery County, NC, Moore County, NC, Richmond County, NC

The radar

The Raleigh/Durham radar (KRAX), 132 km from the middle of the area, began a volume at 06:42 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Nov 30, 9:56 PM ESTTornado WatchSPC6 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 6.7 hours before the alert went out and 103 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 00:00Z on 2010-12-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 39 joules per kilogram.LCLLFCEL10008507005003002001001 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, Greensboro/Hi Pt, NC at 00:00Z on 2010-12-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 407 square meters per square second.19395878Sfc1 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
39 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
486 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
407 m²/s²
0-3 km storm-relative helicity
448 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 severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Raleigh, NC wrote its last area forecast discussion before this severe thunderstorm warning went out at Dec 1, 1:00 AM EST, 41 minutes earlier.

Area forecast discussion, Dec 1, 1:00 AM EST, 41 minutes before
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Hazardous weather outlook, Nov 30, 10:19 PM EST, 3 hours 22 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RALEIGH NC
1019 PM EST TUE NOV 30 2010

NCZ008>011-025>028-041>043-076>078-085-086-088-089-011100-
GRANVILLE-VANCE-WARREN-HALIFAX-DURHAM-FRANKLIN-NASH-EDGECOMBE-WAKE-
JOHNSTON-WILSON-LEE-HARNETT-WAYNE-SCOTLAND-HOKE-CUMBERLAND-SAMPSON-
1019 PM EST TUE NOV 30 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA.

.DAY ONE...THROUGH TONIGHT.

THERE IS A RISK OF FAST-MOVING SEVERE THUNDERSTORMS TONIGHT ACROSS
CENTRAL NORTH CAROLINA. TORNADOES AND DAMAGING STRAIGHT-LINE
WINDS WILL BE THE MAIN SEVERE WEATHER HAZARDS.

THE SEVERE STORMS...WHICH WILL MOVE RAPIDLY TO THE NORTHEAST
AROUND 50 MPH... WILL OCCUR IN AN UNSEASONABLY MILD AND HUMID AIR
MASS TONIGHT... ALONG AND AHEAD OF A STRONG COLD FRONT THAT WILL
MOVE EAST AND OUT OF CENTRAL NC BY EARLY WEDNESDAY.

WHILE ISOLATED SEVERE STORMS COULD OCCUR BETWEEN 1 AM AND 4 AM AHEAD
OF THE COLD FRONT... THE GREATEST THREAT FOR SEVERE STORMS WILL
BE WITH STORMS ALONG THE COLD FRONT... WHICH WILL EDGE EASTWARD
THROUGH THE TRIANGLE...FAYETTEVILLE...GOLDSBORO...ROCKY MOUNT...
AND SURROUNDING COMMUNITIES... BETWEEN 4 AM AND 8 AM.

THESE STORMS WILL MOVE RAPIDLY TO THE NORTHEAST AROUND 50 MPH.
THUS... YOU WILL NEED TO ACT QUICKLY WHEN A WARNING IS ISSUED FOR
YOUR LOCATION.

NIGHTTIME SEVERE WEATHER CAN BE EXTREMELY DANGEROUS. OVER EIGHTY
PERCENT OF ALL TORNADO DEATHS IN NORTH CAROLINA OCCUR AT NIGHT.
BEFORE GOING TO BED...CHECK LOCAL RADIO OR TELEVISION FOR THE
LATEST WEATHER INFORMATION. HAVING A NOAA WEATHER RADIO READY TO
ALERT YOU TO WARNINGS AT NIGHT COULD SAVE YOUR LIFE.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION WILL LIKELY BE NEEDED BETWEEN 2 AM AND
8 AM. SPOTTERS SHOULD REPORT SEVERE WEATHER AS SOON AS IT IS SAFE
TO DO SO. PLEASE STAY TUNED FOR LATER WATCHES AND WARNINGS.

NCZ007-021>024-038>040-073>075-083-084-011100-
PERSON-FORSYTH-GUILFORD-ALAMANCE-ORANGE-DAVIDSON-RANDOLPH-CHATHAM-
STANLY-MONTGOMERY-MOORE-ANSON-RICHMOND-
1019 PM EST TUE NOV 30 2010

...TORNADO WATCH 760 IN EFFECT UNTIL 4 AM EST WEDNESDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL NORTH CAROLINA.

.DAY ONE...THROUGH TONIGHT.

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

   TORNADO WATCH.

THERE IS A RISK OF FAST-MOVING SEVERE THUNDERSTORMS TONIGHT ACROSS
THE SOUTHERN AND WESTERN NC PIEDMONT. IN ADDITION TO THE
POTENTIAL FOR TORNADOES... DAMAGING STRAIGHT-LINE WINDS WILL ALSO
BE POSSIBLE.

THE SEVERE STORMS... WHICH WILL MOVE RAPIDLY TO THE NORTHEAST
AROUND 50 MPH... WILL OCCUR IN AN UNSEASONABLY MILD AND HUMID AIR
MASS TONIGHT... ALONG AND AHEAD OF A STRONG COLD FRONT THAT WILL
MOVE EAST AND OUT OF THE WATCH AREA BY EARLY WEDNESDAY MORNING.

NIGHTTIME SEVERE WEATHER CAN BE EXTREMELY DANGEROUS. OVER EIGHTY
PERCENT OF ALL TORNADO DEATHS IN NORTH CAROLINA OCCUR AT NIGHT.
BEFORE GOING TO BED...CHECK LOCAL RADIO OR TELEVISION FOR THE
LATEST WEATHER INFORMATION. HAVING A NOAA WEATHER RADIO READY TO
ALERT YOU TO WARNINGS AT NIGHT COULD SAVE YOUR LIFE.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

HAZARDOUS WEATHER IS NOT EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION IS REQUESTED. FIRST RESPONDERS AND 911
CENTERS SHOULD PREPARE FOR ADDITIONAL STAFFING FOR THIS EVENT.
SPOTTERS SHOULD REPORT SEVERE WEATHER AS SOON AS IT IS SAFE TO DO
SO. PLEASE STAY TUNED FOR LATER WATCHES AND WARNINGS.

MWS

In the hours before

Special weather statement, Dec 1, 12:11 AM EST, 1 hour 30 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
1211 AM EST WED DEC 1 2010

NCZ038-073-083-010615-
ANSON-DAVIDSON-STANLY-
1211 AM EST WED DEC 1 2010

...STRONG THUNDERSTORMS WILL MOVE ACROSS DAVIDSON...STANLY AND ANSON
COUNTIES THROUGH 115 AM EST...

AT 1210 AM EST...DOPPLER RADAR INDICATED A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM STATESVILLE TO 10 MILES
SOUTHWEST OF MONROE...MOVING EAST AT 40 MPH.

LOCATIONS IN THE PATH OF THESE STORMS INCLUDE...STANFIELD...FINGER...
WHITE STORE...RICHFIELD...WELCOME...NORWOOD.

HAZARDS INCLUDE...
GUSTY WINDS OF 30 TO 40 MPH.

SEEK SHELTER IN A NEARLY BUILDING OR VEHICLE. STRONG WINDS ARE
CAPABLE OF KNOCKING DOWN SMALL TREES AND BLOWING AROUND TRASH CANS...
POTTED PLANTS...LAWN FURNITURE AND OTHER LIGHT OUTDOOR OBJECTS.

&&

LAT...LON 3549 8031 3551 8019 3571 8033 3574 8046
      3583 8049 3585 8039 3597 8037 3602 8021
      3601 8004 3551 8006 3550 8018 3538 8005
      3510 8006 3512 7993 3505 7988 3490 7985
      3481 7992 3481 8030 3518 8028 3519 8050
TIME...MOT...LOC 0510Z 254DEG 34KT 3573 8081 3482 8074

22
Local storm report, Dec 1, 1:20 AM EST, 21 minutes before
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Local storm report, Dec 1, 1:27 AM EST, 14 minutes before
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Local storm report, Dec 1, 1:30 AM EST, 11 minutes before
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Local storm report, Dec 1, 1:36 AM EST, 5 minutes before
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Local storm report, Dec 1, 1:41 AM EST, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Dec 1, 12:11 AM ESTSpecial Weather StatementRAHAnson, Davidson, Stanly64 min
Dec 1, 12:44 AM ESTSevere Thunderstorm WarningRAHAnson, Montgomery, Richmond, Stanly61 min
Dec 1, 12:49 AM ESTSevere Thunderstorm WarningRAHDavidson, Forsyth, Guilford, Randolph56 min
Dec 1, 1:38 AM ESTSevere Thunderstorm WarningRAHAlamance, Chatham, Guilford, Randolph52 min
Dec 1, 2:29 AM ESTSevere Thunderstorm WarningRAHAlamance, Chatham, Randolph61 min
Dec 1, 2:39 AM ESTSevere Thunderstorm WarningRAHOrange, Person81 min
Dec 1, 2:45 AM ESTSevere Thunderstorm WarningRAHHoke, Montgomery, Moore, Richmond, Scotland60 min
Dec 1, 3:04 AM ESTSevere Thunderstorm WarningRAHSampson26 min
Dec 1, 3:26 AM ESTSevere Thunderstorm WarningRAHChatham, Lee49 min
Dec 1, 3:48 AM ESTSpecial Weather StatementRAHDurham57 min
Dec 1, 4:03 AM ESTSpecial Weather StatementRAHCumberland, Harnett, Wake42 min
Dec 1, 4:08 AM ESTSpecial Weather StatementRAHGranville, Vance37 min
Dec 1, 4:26 AM ESTSevere Thunderstorm WarningRAHDurham, Franklin, Granville, Wake49 min
Dec 1, 4:41 AM ESTSpecial Weather StatementRAHJohnston, Sampson64 min
Dec 1, 4:44 AM ESTSevere Thunderstorm WarningRAHGranville, Vance46 min
Dec 1, 5:12 AM ESTSevere Thunderstorm WarningRAHWarren48 min
Dec 1, 5:19 AM ESTSpecial Weather StatementRAHFranklin, Halifax, Nash56 min
Dec 1, 5:38 AM ESTSpecial Weather StatementRAHWayne, Wilson52 min
Dec 1, 6:13 AM ESTSpecial Weather StatementRAHEdgecombe, Halifax62 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2010Every severe thunderstorm warning in 2010

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.