Alert archive / North Carolina / Tornado Warnings in 1998

Tornado Warning 22, NWS Raleigh, NC

May 7, 1998Alamance County, Guilford County, North Carolina

NWS Raleigh, NC issued this tornado warning at May 7, 1998, 8:03 PM EDT for Alamance County, Guilford County, North Carolina. It was in force for 32 min. 2 reports 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: May 7, 1998, 8:03 PM EDT (00:03 UTC)
Expired: May 7, 1998, 8:35 PM EDT
In force: 32 min
Issued by: NWS Raleigh, NC
Area: Whole counties

Counties Alamance County, NC, Guilford County, NC

What was reported inside it

Time	Report	Where	Remark
May 7, 8:07 PM EDT	Tornado F1	Climax, NC
May 7, 8:25 PM EDT	Hail 0.75	Snow Camp, NC

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 watch it was issued in

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

Issued	Product	Office	Lasted
May 7, 7:00 PM EDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Roanoke, VA (KRNK), launched 00:00Z, 0.1 hours before the alert went out and 127 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: 362 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 622 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 304 m²/s²
0-3 km storm-relative helicity: 350 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 4.1

Open this sounding in Storm Lab

The text

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

582 
WFUS1 KRDU 080003 RRA
TORRDU
NCC001-037-081-080035-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
803 PM EDT THU MAY 7 1998

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

* TORNADO WARNING FOR...
  WESTERN ALAMANCE COUNTY
  WESTERN CHATHAM COUNTY
  EASTERN GUILFORD COUNTY

* UNTIL 835 PM EDT

* AT 759 PM... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO EAST SIDE OF THE CITY OF GREENSBORO AND A SECOND STORM
  NEAR RED CROSS IN NORTH RANDOLPH... ... MOVING EAST AT 30 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  MCLEANSVILLE
  SEDALIA

GO TO THE BASEMENT IF A BASEMENT IS
NOT AVAILABLE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR

PWB

The office that day

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

Issued	Product	Office	Counties	Lasted
May 7, 8:03 PM EDT	Tornado Warning	RAH	Chatham	32 min
May 7, 9:01 PM EDT	Severe Thunderstorm Warning	RAH	Montgomery, Stanly	34 min
May 7, 9:04 PM EDT	Severe Thunderstorm Warning	RAH	Chatham, Wake	31 min
May 7, 9:13 PM EDT	Severe Thunderstorm Warning	RAH	Person	32 min
May 7, 9:34 PM EDT	Severe Thunderstorm Warning	RAH	Harnett, Johnston, Wake	31 min
May 8, 9:33 AM EDT	Severe Thunderstorm Warning	RAH	Forsyth	32 min
May 8, 10:59 AM EDT	Severe Thunderstorm Warning	RAH	Alamance	31 min
May 8, 11:53 AM EDT	Severe Thunderstorm Warning	RAH	Vance	32 min
May 8, 12:09 PM EDT	Severe Thunderstorm Warning	RAH	Granville, Vance	31 min
May 8, 12:27 PM EDT	Severe Thunderstorm Warning	RAH	Warren	33 min
May 8, 12:52 PM EDT	Severe Thunderstorm Warning	RAH	Warren	33 min
May 8, 12:55 PM EDT	Severe Thunderstorm Warning	RAH	Halifax	50 min
May 8, 1:44 PM EDT	Severe Thunderstorm Warning	RAH	Edgecombe, Halifax	46 min
May 8, 3:22 PM EDT	Severe Thunderstorm Warning	RAH	Wayne	48 min
May 8, 3:33 PM EDT	Severe Thunderstorm Warning	RAH	Wilson	32 min
May 8, 3:42 PM EDT	Severe Thunderstorm Warning	RAH	Sampson	33 min
May 8, 3:45 PM EDT	Severe Thunderstorm Warning	RAH	Person	50 min
May 8, 4:20 PM EDT	Severe Thunderstorm Warning	RAH	Wilson	50 min
May 8, 4:24 PM EDT	Severe Thunderstorm Warning	RAH	Granville	51 min
May 8, 4:32 PM EDT	Severe Thunderstorm Warning	RAH	Wake	33 min
May 8, 4:55 PM EDT	Severe Thunderstorm Warning	RAH	Franklin	35 min
May 8, 5:33 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland	32 min
May 8, 5:53 PM EDT	Severe Thunderstorm Warning	RAH	Johnston	32 min
May 8, 6:04 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland	31 min
May 8, 6:16 PM EDT	Severe Thunderstorm Warning	RAH	Harnett	29 min
May 8, 6:31 PM EDT	Severe Thunderstorm Warning	RAH	Wayne	29 min

Nearby

Tornado Warnings in North Carolina, 1998 Every tornado warning in 1998 Tornadoes in 1998

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.