Alert archive / North Carolina / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 95, NWS Raleigh, NC

July 17, 1997Granville County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Jul 17, 1997, 3:58 PM EDT for Granville County, North Carolina. It was in force for 32 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 17, 1997, 3:58 PM EDT (19:58 UTC)
Expired
Jul 17, 1997, 4:30 PM EDT
In force
32 min
Issued by
NWS Raleigh, NC
Area
Whole counties

County Granville County, NC

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 8.0 hours before the alert went out and 115 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 12:00Z on 1997-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 339 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, Greensboro/Hi Pt, NC at 12:00Z on 1997-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 square meters per square second.1939Sfc1 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
339 J/kg
Mixed-layer CIN
-91 J/kg
Mixed-layer LCL
1009 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
10 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 171957 RRA
SVRRDU
NCC077-172030-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC
358 PM EDT THU JUL 17 1997
 
THE NATIONAL WEATHER SERVICE IN RALEIGH/DURHAM HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  430 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTH CENTRAL NORTH CAROLINA
 
   ...GRANVILLE COUNTY
 
AT 358 PM WEATHER SERVICE RADAR SHOWED A SEVERE THUNDERSTORM OVER
WESTERN GRANVILLE COUNTY NEAR BEREA ALONG HIGHWAY 158. THIS STORM WAS
DRIFTING SLOWLY TOWARD THE SOUTH.
 
PEOPLE SHOULD BE ESPECIALLY ALERT FOR LARGE HAIL AND DAMAGING WIND.
FREQUENT LIGHTNING AND LOCALLY HEAVY RAIN CAN POSE A DANGER WITH ANY
THUNDERSTORM.  SEEK SHELTER IMMEDIATELY AND REPORT DAMAGE 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

Special weather statement, Jul 17, 11:40 AM EDT, 4 hours 18 minutes before
NCZ007>011-021>028-038>043-073>078-083>086-088>089-180000-

SEVERE WEATHER OUTLOOK FOR CENTRAL NORTH CAROLINA
NATIONAL WEATHER SERVICE RALEIGH NC
1140 AM EDT THU JUL 17 1997

(THE SEVERE WEATHER OUTLOOK FOR CENTRAL NORTH CAROLINA APPLIES ONLY TO
THE COUNTIES LISTED AT THE END OF TEXT.)

SCATTERED THUNDERSTORMS ARE EXPECTED OVER CENTRAL NORTH CAROLINA
THIS AFTERNOON AND EVENING. THE THREAT OF SEVERE WEATHER IS LOW BUT
A FEW STORMS MAY BECOME STRONG ENOUGH TO PRODUCE SOME HAIL...DAMAGING
WINDS AND LOCALLY HEAVY DOWNPOURS.

A TROUGH OF LOW PRESSURE WILL LINGER OVER CENTRAL NORTH CAROLINA
THROUGH FRIDAY. AS TEMPERATURES CLIMB INTO THE LOW AND MID 90S THIS
AFTERNOON...THIS TROUGH WILL ACT AS A FOCUS FOR THUNDERSTORMS.

SPOTTER ACTIVATION IS NOT EXPECTED THIS AFTERNOON ALTHOUGH SPOTTERS ARE
ENCOURAGED TO REPORT ANY SIGNIFICANT WEATHER.

STAY TUNED TO NOAA WEATHER RADIO FOR ADDITIONAL STATEMENTS OR POSSIBLE
WATCHES AND WARNINGS.

RA
*********************************************************************

ALAMANCE          ANSON              CHATHAM            CUMBERLAND
DAVIDSON          DURHAM             EDGECOMBE          FORSYTH
FRANKLIN          GRANVILLE          GUILFORD           HALIFAX
HARNETT           HOKE               JOHNSTON           LEE
MONTGOMERY        MOORE              NASH               ORANGE
PERSON            RANDOLPH           RICHMOND           SAMPSON
SCOTLAND          STANLY             VANCE              WAKE
WARREN            WAYNE              WILSON
Special weather statement, Jul 17, 11:41 AM EDT, 4 hours 17 minutes before
NCZ007>011-021>028-038>043-073>078-083>086-088>089-180000-

SEVERE WEATHER OUTLOOK FOR CENTRAL NORTH CAROLINA
NATIONAL WEATHER SERVICE RALEIGH NC
1140 AM EDT THU JUL 17 1997

(THE SEVERE WEATHER OUTLOOK FOR CENTRAL NORTH CAROLINA APPLIES ONLY TO
THE COUNTIES LISTED AT THE END OF TEXT.)

SCATTERED THUNDERSTORMS ARE EXPECTED OVER CENTRAL NORTH CAROLINA
THIS AFTERNOON AND EVENING. THE THREAT OF SEVERE WEATHER IS LOW BUT
A FEW STORMS MAY BECOME STRONG ENOUGH TO PRODUCE SOME HAIL...DAMAGING
WINDS AND LOCALLY HEAVY DOWNPOURS.

A TROUGH OF LOW PRESSURE WILL LINGER OVER CENTRAL NORTH CAROLINA
THROUGH FRIDAY. AS TEMPERATURES CLIMB INTO THE LOW AND MID 90S THIS
AFTERNOON...THIS TROUGH WILL ACT AS A FOCUS FOR THUNDERSTORMS.

SPOTTER ACTIVATION IS NOT EXPECTED THIS AFTERNOON ALTHOUGH SPOTTERS ARE
ENCOURAGED TO REPORT ANY SIGNIFICANT WEATHER.

STAY TUNED TO NOAA WEATHER RADIO FOR ADDITIONAL STATEMENTS OR POSSIBLE
WATCHES AND WARNINGS.

RA
*********************************************************************

ALAMANCE          ANSON              CHATHAM            CUMBERLAND
DAVIDSON          DURHAM             EDGECOMBE          FORSYTH
FRANKLIN          GRANVILLE          GUILFORD           HALIFAX
HARNETT           HOKE               JOHNSTON           LEE
MONTGOMERY        MOORE              NASH               ORANGE
PERSON            RANDOLPH           RICHMOND           SAMPSON
SCOTLAND          STANLY             VANCE              WAKE
WARREN            WAYNE              WILSON

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.