Alert archive / North Carolina / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 39, NWS Raleigh, NC

May 2, 2003Guilford County, Randolph County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at May 2, 2003, 6:40 PM EDT for Guilford County, Randolph County, North Carolina. It was in force for 50 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: May 2, 2003, 6:40 PM EDT (22:40 UTC)
Expired: May 2, 2003, 7:30 PM EDT
In force: 50 min
Issued by: NWS Raleigh, NC
Area: Counties, with a storm outline in the text

Counties Guilford County, NC, Randolph County, NC

The radar

The Raleigh/Durham radar (KRAX), 123 km from the middle of the area, began a volume at 22:40 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 watch it was issued in

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

Issued	Product	Office	Lasted
May 2, 4:40 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 10.7 hours before the alert went out and 17 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: 66 J/kg
Mixed-layer CIN: -126 J/kg
Mixed-layer LCL: 1115 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: -28 m²/s²
0-3 km storm-relative helicity: 49 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

031 
WUUS52 KRAH 022240
SVRRAH
NCC081-151-022330-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
639 PM EDT FRI MAY 2 2003

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  RANDOLPH COUNTY IN CENTRAL NORTH CAROLINA
  GUILFORD COUNTY IN CENTRAL NORTH CAROLINA

* UNTIL 730 PM EDT

* AT 639 PM EDT...WEATHER SPOTTERS REPORTED A SEVERE THUNDERSTORM
  ALONG A LINE EXTENDING FROM COLFAX TO 6 MILES SOUTH OF MARTHA...OR
  ALONG A LINE EXTENDING FROM 6 MILES SOUTHEAST OF BELEWS CREEK TO 14
  MILES NORTHWEST OF TROY...MOVING EAST AT 30 MPH. WINDS IN EXCESS OF
  70 MPH ARE LIKELY WITH THIS STORM.

* SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...
  SUMMERFIELD
  GREENSBORO
  ASHEBORO
  

A SEVERE THUNDERSTORM CAN PRODUCE LARGE DAMAGING HAIL...DAMAGING
WINDS IN EXCESS OF 58 MPH...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
GO INSIDE A STURDY SHELTER. MOVE TO AN INTERIOR ROOM AND STAY AWAY
FROM WINDOWS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
FRIDAY EVENING FOR CENTRAL NORTH CAROLINA.

LAT...LON 3624 7968 3552 7961 3551 8005 3624 8002

$$

12

The office that day

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

Issued	Product	Office	Counties	Lasted
May 2, 5:46 PM EDT	Severe Thunderstorm Warning	RAH	Davidson, Forsyth	44 min
May 2, 5:53 PM EDT	Severe Thunderstorm Warning	RAH	Stanly	22 min
May 2, 6:26 PM EDT	Severe Thunderstorm Warning	RAH	Anson, Montgomery, Richmond	34 min
May 2, 6:27 PM EDT	Severe Thunderstorm Warning	RAH	Davidson, Forsyth	43 min
May 2, 6:34 PM EDT	Tornado Warning	RAH	Davidson	26 min
May 2, 6:39 PM EDT	Tornado Warning	RAH	Forsyth	36 min
May 2, 6:58 PM EDT	Severe Thunderstorm Warning	RAH	Moore, Scotland	47 min
May 2, 7:00 PM EDT	Severe Thunderstorm Warning	RAH	Richmond	15 min
May 2, 7:15 PM EDT	Severe Thunderstorm Warning	RAH	Hoke	30 min
May 2, 7:38 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland	37 min
May 2, 7:43 PM EDT	Severe Thunderstorm Warning	RAH	Harnett, Lee	32 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2003 Every severe thunderstorm warning in 2003

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.