Alert archive / North Carolina / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 85, NWS Raleigh, NC

July 5, 1997Sampson County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Jul 5, 1997, 10:59 PM EDT for Sampson County, North Carolina. It was in force for 31 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
Jul 5, 1997, 10:59 PM EDT (02:59 UTC)
Expired
Jul 5, 1997, 11:30 PM EDT
In force
31 min
Issued by
NWS Raleigh, NC
Area
Whole counties

County Sampson County, NC

The nearest sounding before it

Newport, NC (KMHX), launched 00:00Z, 3.0 hours before the alert went out and 138 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, Newport, NC at 00:00Z on 1997-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 227 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Newport, NC at 00:00Z on 1997-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 81 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
227 J/kg
Mixed-layer CIN
-275 J/kg
Mixed-layer LCL
1431 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
81 m²/s²
0-3 km storm-relative helicity
107 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.

545 
WUUS1 KRDU 060300 RRA
SVRRDU
NCC163-060330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC
1059 PM EDT SAT JUL 5 1997
 
THE NATIONAL WEATHER SERVICE IN RALEIGH/DURHAM HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1130 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST NORTH CAROLINA
 
   ...NORTHERN SAMPSON COUNTY
 
NATIONAL WEATHER SERVICE RADAR INDICATES A SEVERE THUNDERSTORM AT 11 PM
IN NORTHWEST SAMPSON COUNTY IN THE VICINITY OF US 421. THE STORM IS
MOVING TO THE EAST AT 15 MILES AN HOUR. THIS STORM WILL PRODUCE NICKEL
SIZED HAIL OR LARGER AND POSSIBLE DAMAGING GUSTY WINDS.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 5, 9:04 PM EDTSevere Thunderstorm WarningRAHJohnston41 min
Jul 5, 9:25 PM EDTSevere Thunderstorm WarningRAHWayne50 min
Jul 5, 10:10 PM EDTSevere Thunderstorm WarningRAHJohnston50 min
Jul 5, 10:14 PM EDTSevere Thunderstorm WarningRAHStanly46 min
Jul 5, 10:30 PM EDTSevere Thunderstorm WarningRAHHarnett45 min
Jul 5, 10:38 PM EDTTornado WarningRAHHarnett37 min
Jul 6, 12:07 AM EDTSevere Thunderstorm WarningRAHMoore23 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 1997Every severe thunderstorm warning in 1997

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.