Alert archive / North Carolina / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 167, NWS Raleigh, NC

August 10, 2000Person County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Aug 10, 2000, 12:50 AM EDT for Person County, North Carolina. It was in force for 40 min. 1 report 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: Aug 10, 2000, 12:50 AM EDT (04:50 UTC)
Expired: Aug 10, 2000, 1:30 AM EDT
In force: 40 min
Issued by: NWS Raleigh, NC
Area: Whole counties

County Person County, NC

What was reported inside it

Time	Report	Where	Remark
Aug 10, 1:00 AM EDT	Thunderstorm Wind 50 E	Roxboro, NC	Trees were blown down in Roxboro.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 4.8 hours before the alert went out and 90 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2371 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 1525 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 55 m²/s²
0-3 km storm-relative helicity: 84 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.1

Open this sounding in Storm Lab

The text

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

957 
WUUS52 KRAH 100450
SVRRDU
NCC135-145-100530-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
1250 AM EDT THU AUG 10 2000

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  PERSON COUNTY IN NORTH CAROLINA

* UNTIL 130 AM EDT

* AT 1248 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS APPROACHING THE NORTHWEST CORNER OF   
  PERSON COUNTY. THIS LINE OF THUNDERSTORMS IS EXPECTED TO PRODUCE   
  STRONG TO DAMAGING WIND GUSTS AS IT MOVES SOUTHEAST AT 40 MPH      
  ACROSS THE COUNTY.            

* SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...
  ROXBORO
  HYCO LAKE
  MAYO RESERVOIR
  BUSHY FORK
  SURL

THIS STORM HAS A HISTORY OF PRODUCING DAMAGING WINDS.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE 
FOR DAMAGING WIND GUSTS IN EXCESS OF 55 MPH... AND POSSIBLY LARGE 
HAIL. PEOPLE SHOULD SEEK SHELTER PREFERABLY INSIDE A STRONG BUILDING 
BUT AWAY FROM WINDOWS.

PWB

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 Aug 9, 9:45 PM EDT, 3 hours 5 minutes earlier.

Area forecast discussion, Aug 9, 9:45 PM EDT, 3 hours 5 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RALEIGH NC
945 PM EDT WED AUG 9 2000

PROXIMITY 00Z RAOBS SHOW AN ATMOSPHERE POISED FOR DEEP CONVECTION
OVERNIGHT.  THOUGH MESOETA SUGGESTS MOST OF THE THRUST OF THE MCS
OVER WV-ERN KY REGION WILL HEAD DUE SOUTH TO THE WEST OF THE RAH
CWA... WITH THE RESIDENT AIRMASS OVER CENTRAL NC... MCS OUTFLOW MAY
STIMULATE ADDITIONAL DEEP CONVECTION TO THE EAST.

THEREFORE...CHANCE OF TSTMS WILL BE EXTENDED TO THE OVERNIGHT PERIOD
IN MOST IF NOT ALL OF THE RAH CWA.

.RAH...NONE.

RFG

In the hours before

Local storm report, Aug 9, 9:23 PM EDT, 3 hours 27 minutes before

ZCZC RDULSRRDU ALL
TTAA00 KRDU DDHHMM

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC
923 PM EDT WED AUG 09 2000

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0855 PM    WHITAKERS                 NC   WIND DAMAGE
08/09/00   EDGECOMBE                      911 REPORTS TWO TREES DOWN

0900 PM    SPRING HOPE               NC   1 INCH HAIL
08/09/00   NASH                           QUARTER SIZE HAIL AND
                                          SEVERAL TREES DOWN AROUND
                                          SPRING HOPE

N

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 8:23 PM EDT	Severe Thunderstorm Warning	RAH	Nash	52 min
Aug 9, 9:36 PM EDT	Severe Thunderstorm Warning	RAH	Edgecombe	39 min
Aug 10, 1:00 AM EDT	Severe Thunderstorm Warning	RAH	Forsyth, Guilford	45 min
Aug 10, 1:00 AM EDT	Severe Thunderstorm Warning	RAH	Alamance, Orange	45 min
Aug 10, 1:37 AM EDT	Severe Thunderstorm Warning	RAH	Chatham, Davidson, Randolph	38 min
Aug 10, 1:47 AM EDT	Severe Thunderstorm Warning	RAH	Durham, Granville, Wake	58 min
Aug 10, 3:09 AM EDT	Severe Thunderstorm Warning	RAH	Johnston	36 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2000 Every severe thunderstorm warning in 2000

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.