Alert archive / North Carolina / Tornado Warnings in 2007

Tornado Warning 5, NWS Raleigh, NC

September 14, 2007Forsyth County, North Carolina

NWS Raleigh, NC issued this tornado warning at Sep 14, 2007, 2:39 PM EDT for Forsyth County, North Carolina. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Sep 14, 2007, 2:39 PM EDT (18:39 UTC)
Expired
Sep 14, 2007, 3:15 PM EDT
In force
36 min
Issued by
NWS Raleigh, NC
Area
Counties, with a storm outline in the text

County Forsyth County, NC

The radar

The Roanoke radar (KFCX), 93 km from the middle of the area, began a volume at 18:40 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 6.7 hours before the alert went out and 35 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 2007-09-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 384 joules per kilogram.LCLLFCEL10008507005003002001001 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 2007-09-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 49 square meters per square second.193958Sfc1 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
384 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
591 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
49 m²/s²
0-3 km storm-relative helicity
51 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS52 KRAH 141838
TORRAH
NCC067-141915-
/O.NEW.KRAH.TO.W.0005.070914T1839Z-070914T1915Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
239 PM EDT FRI SEP 14 2007

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

* TORNADO WARNING FOR...
  FORSYTH COUNTY IN CENTRAL NORTH CAROLINA

* UNTIL 315 PM EDT

* AT 236 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO OVER WINSTON-SALEM...MOVING NORTHEAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  STANLEYVILLE...
  SEDGE GARDEN...
  WALKERTOWN...
  KERNERSVILLE...

THE SAFEST PLACE TO BE DURING A TORNADO IS ON THE LOWEST FLOOR OF THE
BUILDING IN A SMALL ROOM SUCH AS A CLOSET OR BATHROOM OR IN AN
INTERIOR HALLWAY. USE BLANKETS OR PILLOWS TO PROTECT YOUR BODY FROM
FLYING DEBRIS. STAY AWAY FROM WINDOWS AND EXTERIOR WALLS.

LAT...LON 3627 8031 3627 8029 3626 8028 3626 8014
      3610 8003 3599 8030 3611 8047
TIME...MOT...LOC 1839Z 241DEG 20KT 3612 8027

$$

WSS
3 follow-up statements
000 
WWUS52 KRAH 141850
SVSRAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
246 PM EDT FRI SEP 14 2007

NCC067-141915-
/O.CON.KRAH.TO.W.0005.000000T0000Z-070914T1915Z/
FORSYTH NC-
246 PM EDT FRI SEP 14 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 315 PM EDT FOR FORSYTH
COUNTY...

AT 245 PM EDT...LOCAL LAW ENFORCEMENT REPORTED A SEVERE THUNDERSTORM 
WITH A POSSIBLE TORNADO.  RADAR INDICATED THAT A POSSIBLE TORNADO 
WAS LOCATED NEAR WINSTON-SALEM...JUST NORTH OF DOWNTOWN...MOVING 
NORTHEAST AT 20 MPH.

LOCATIONS IN THE PATH OF THE STORM INCLUDE...WALKERTOWN AND 
KERNERSVILLE. PEOPLE NORTH AND EAST OF WINSTON-SALEM NEED TO TAKE 
SHELTER NOW.

FORSYTH COUNTY 911 REPORTED SLIDING OFF A FEW HOMES ON THE WEST- 
SOUTHWEST SIDE OF WINSTON-SALEM AT 236 PM EDT. 

LAT...LON 3627 8031 3627 8029 3626 8028 3626 8014
      3610 8003 3599 8030 3611 8047
TIME...MOT...LOC 1846Z 241DEG 20KT 3614 8023

$$

WSS
000 
WWUS52 KRAH 141856
SVSRAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
256 PM EDT FRI SEP 14 2007

NCC067-141915-
/O.CON.KRAH.TO.W.0005.000000T0000Z-070914T1915Z/
FORSYTH NC-
256 PM EDT FRI SEP 14 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 315 PM EDT FOR FORSYTH
COUNTY...

AT 253 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR WALKERTOWN...OR
ABOUT 7 MILES NORTHEAST OF WINSTON-SALEM...MOVING NORTHEAST AT 20 
MPH. PEOPLE IN NORTHEAST FORSYTH COUNTY NEED TO TAKE COVER NOW

LAT...LON 3627 8031 3627 8029 3626 8028 3626 8014
      3610 8003 3599 8030 3611 8047
TIME...MOT...LOC 1856Z 242DEG 21KT 3617 8015

$$

WSS
000 
WWUS52 KRAH 141918
SVSRAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
318 PM EDT FRI SEP 14 2007

NCC067-141928-
/O.EXP.KRAH.TO.W.0005.000000T0000Z-070914T1915Z/
FORSYTH NC-
318 PM EDT FRI SEP 14 2007

...THE TORNADO WARNING FOR FORSYTH COUNTY EXPIRES AT 315 PM EDT...

THE WARNING HAS BEEN ALLOWED TO EXPIRE AS THE STORM HAS EXITED 
NORTHERN FORSYTH.

LAT...LON 3627 8031 3627 8029 3626 8028 3626 8014
      3610 8003 3599 8030 3611 8047
TIME...MOT...LOC 1856Z 242DEG 21KT 3617 8015

$$

WSS

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 14, 3:02 PM EDTTornado WarningRAHGuilford43 min
Sep 14, 3:08 PM EDTSevere Thunderstorm WarningRAHChatham52 min
Sep 14, 3:11 PM EDTTornado WarningRAHMoore34 min
Sep 14, 3:30 PM EDTTornado WarningRAHCumberland45 min
Sep 14, 3:34 PM EDTSevere Thunderstorm WarningRAHWake56 min
Sep 14, 4:18 PM EDTTornado WarningRAHDavidson31 min
Sep 14, 4:47 PM EDTTornado WarningRAHRandolph43 min
Sep 14, 4:53 PM EDTTornado WarningRAHGuilford31 min
Sep 14, 5:20 PM EDTSevere Thunderstorm WarningRAHWake40 min
Sep 14, 5:33 PM EDTSevere Thunderstorm WarningRAHJohnston57 min
Sep 14, 6:00 PM EDTSevere Thunderstorm WarningRAHHarnett30 min
Sep 14, 6:02 PM EDTTornado WarningRAHJohnston28 min
Sep 14, 6:10 PM EDTTornado WarningRAHHarnett35 min
Sep 14, 6:29 PM EDTTornado WarningRAHJohnston31 min
Sep 14, 6:36 PM EDTTornado WarningRAHJohnston54 min
Sep 14, 6:45 PM EDTSevere Thunderstorm WarningRAHWake60 min
Sep 14, 6:54 PM EDTSevere Thunderstorm WarningRAHChatham, Harnett66 min
Sep 14, 7:02 PM EDTTornado WarningRAHNash, Wilson58 min
Sep 14, 7:13 PM EDTTornado WarningRAHWake32 min
Sep 14, 7:32 PM EDTSevere Thunderstorm WarningRAHJohnston73 min

Nearby

Tornado Warnings in North Carolina, 2007Every tornado warning in 2007Tornadoes in 2007

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.