Alert archive / North Carolina / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 80, NWS Raleigh, NC

July 5, 1997Johnston County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Jul 5, 1997, 9:04 PM EDT for Johnston County, North Carolina. It was in force for 41 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, 9:04 PM EDT (01:04 UTC)
Expired
Jul 5, 1997, 9:45 PM EDT
In force
41 min
Issued by
NWS Raleigh, NC
Area
Whole counties

County Johnston County, NC

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 1.1 hours before the alert went out and 152 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, Greensboro/Hi Pt, NC at 00:00Z on 1997-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1084 joules per kilogram.LCLEL10008507005003002001001 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, Greensboro/Hi Pt, NC at 00:00Z on 1997-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 square meters per square second.1939587897Sfc1 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
1084 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
1154 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
154 m²/s²
Significant tornado parameter
0.4
Supercell composite
2.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KRDU 060106 RRA
SVRRDU
NCC101-060145-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC
904 PM EDT SAT JUL 5 1997
 
THE NATIONAL WEATHER SERVICE IN RALEIGH/DURHAM HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  945 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL NORTH CAROLINA
 
   ...JOHNSTON COUNTY
 
WEATHER SERVICE DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS OVER
JOHNSTON COUNTY MOVING EAST-NORTHEAST AT 25 MPH. STRONG WINDS AHEAD OF
THE STORMS WERE APPROACHING SMITHFIELD AND SELMA AT 805 PM.
 
 
 
DOWNBURST WINDS FROM A SEVERE THUNDERSTORM CAN SOMETIMES REACH 100
MPH.  A POWERFUL DOWNBURST CAN BE AS BAD AS A TORNADO.  THESE WINDS
DOWN TREES AND POWER LINES...OVERTURN MOBILE HOMES...AND DAMAGE
BUILDINGS. SEEK SHELTER IMMEDIATELY AND REPORT DAMAGES PROMPTLY TO
EMERGENCY OFFICIALS FOR RELAY TO THE NATIONAL WEATHER SERVICE.

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.

In the hours before

Local storm report, Jul 5, 5:28 PM EDT, 3 hours 36 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC
528 PM EDT SAT JUL 05 1997

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

0500 PM    ROCKINGHAM                NC   1.5 INCH HAIL
07/05/97   RICHMOND                       PING PONG BALL SIZED HAIL
                                          REPORTED CO. SHERRIF

0505 PM    HAMLET                    NC   1.5 INCH HAIL
07/05/97   RICHMOND                       PING PONG BALL SIZED HAIL
                                          REPORTED BY POLICE

The office that day

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

IssuedProductOfficeCountiesLasted
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 5, 10:59 PM EDTSevere Thunderstorm WarningRAHSampson31 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.