Alert archive / North Carolina / Tornado Warnings in 1998

Tornado Warning 7, NWS Raleigh, NC

March 20, 1998Person County, North Carolina

NWS Raleigh, NC issued this tornado warning at Mar 20, 1998, 4:15 PM EST for Person County, North Carolina. It was in force for 30 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
Mar 20, 1998, 4:15 PM EST (21:15 UTC)
Expired
Mar 20, 1998, 4:45 PM EST
In force
30 min
Issued by
NWS Raleigh, NC
Area
Whole counties

County Person County, NC

The watch it was issued in

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

IssuedProductOfficeLasted
Mar 20, 1:00 PM ESTTornado WatchSPC6 hr

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 9.3 hours before the alert went out and 102 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, Roanoke, VA at 12:00Z on 1998-03-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Roanoke, VA at 12:00Z on 1998-03-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 179 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
595 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
179 m²/s²
0-3 km storm-relative helicity
234 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.

000 
TTAA00 KRDU 202115 RRA
TORRDU
NCC145-202145-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
415 PM EST FRI MAR 20 1998


THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

* TORNADO WARNING FOR
  NORTHERN PERSON COUNTY

* UNTIL 445 PM EST

* THIS TORNADO WILL AFFECT:
  COMMUNITIES GENERALLY NORTH OF ROXBORO INCLUDING
LONGHURST AND WOODSDALE
AND THE MAYO RESERVOIR

* BASIS FOR WARNING:  RADAR INDICATED A SEVERE STORM WITH A
POSSIBLE TORNADO AT 410 PM.  THE STORM IS MOVING NORTHEAST AT 30 TO
35 MPH.


PEOPLE NEAR THE PATH OF THIS STORM SHOULD ACT NOW TO PROTECT THEIR
LIVES.  MOVE TO SHELTER IMMEDIATELY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM.

DELGADO



The office that day

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

IssuedProductOfficeCountiesLasted
Mar 20, 2:35 PM ESTSevere Thunderstorm WarningRAHForsyth30 min
Mar 20, 3:17 PM ESTSevere Thunderstorm WarningRAHForsyth33 min
Mar 20, 3:36 PM ESTSevere Thunderstorm WarningRAHDavidson34 min
Mar 20, 3:54 PM ESTSevere Thunderstorm WarningRAHRandolph31 min
Mar 20, 4:20 PM ESTSevere Thunderstorm WarningRAHGuilford35 min
Mar 20, 4:41 PM ESTSevere Thunderstorm WarningRAHAlamance34 min
Mar 20, 5:27 PM ESTTornado WarningRAHPerson33 min
Mar 20, 5:33 PM ESTSevere Thunderstorm WarningRAHRandolph32 min
Mar 20, 5:58 PM ESTSevere Thunderstorm WarningRAHDurham, Orange32 min
Mar 20, 6:00 PM ESTSevere Thunderstorm WarningRAHWake35 min
Mar 20, 6:26 PM ESTTornado WarningRAHChatham, Wake34 min
Mar 20, 6:28 PM ESTSevere Thunderstorm WarningRAHAlamance32 min
Mar 20, 6:44 PM ESTSevere Thunderstorm WarningRAHGranville31 min
Mar 20, 6:50 PM ESTTornado WarningRAHGranville35 min
Mar 20, 6:56 PM ESTSevere Thunderstorm WarningRAHOrange29 min
Mar 20, 6:56 PM ESTSevere Thunderstorm WarningRAHFranklin29 min

Nearby

Tornado Warnings in North Carolina, 1998Every tornado warning in 1998Tornadoes 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; the sounding from the Mesonet's radiosonde archive.