Alert archive / North Carolina / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 17, NWS Raleigh, NC

March 5, 1997Warren County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Mar 5, 1997, 7:46 PM EST for Warren County, North Carolina. It was in force for 29 min. 1 report 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
Mar 5, 1997, 7:46 PM EST (00:46 UTC)
Expired
Mar 5, 1997, 8:15 PM EST
In force
29 min
Issued by
NWS Raleigh, NC
Area
Whole counties

County Warren County, NC

The radar

The Raleigh/Durham radar (KRAX), 88 km from the middle of the area, began a volume at 00:58 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Mar 5, 8:00 PM ESTThunderstorm Wind 50Warrenton, 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.

IssuedProductOfficeLasted
Mar 5, 6:15 PM ESTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Roanoke, VA (KRNK), launched 00:00Z, 0.8 hours before the alert went out and 153 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 00:00Z on 1997-03-06Temperature 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 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Roanoke, VA at 00:00Z on 1997-03-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -189 square meters per square second.1939587897117Sfc1 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
734 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
-189 m²/s²
0-3 km storm-relative helicity
-166 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.

891 
WUUS1 KRDU 060048 RRA
SVRRDU
NCC185-060115-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC
746 PM EST WED MAR 5 1997
 
THE NATIONAL WEATHER SERVICE IN RALEIGH/DURHAM HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  815 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTH CENTRAL NORTH CAROLINA
 
   ...WARREN COUNTY
 
AT 745 PM WEATHER RADAR SHOWED A LINE OF SEVERE THUNDERSTORMS MOVING
INTO WESTERN WARREN COUNTY. THESE STORMS ARE MOVING EAST AROUND 50 MPH
AND WILL REACH WARRENTON BEFORE 8 PM. THESE STORMS HAVE ALREADY PRODUCED
WIDESPREAD WIND DAMAGE AND LARGE HAIL.
 
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, Mar 5, 6:55 PM EST, 51 minutes before
NCZ001>005-018>021-033>037-048>056-058>065-060100-

SPECIAL WEATHER STATEMENT...CORRECTION FOR DATE
NATIONAL WEATHER SERVICE RALEIGH NC
655 PM EST WED MAR 5 1997

THE TORNADO WATCH NUMBER 95 FOR PORTIONS OF NORTHWESTERN AND THE
MOUNTAIN REGION OF NORTH CAROLINA HAS NOW BEEN CANCELLED.

THE TORNADO WATCH CONTINUES IN EFFECT UNTIL 9 PM FOR POLK...
RUTHERFORD...CLEVELAND AND LINCOLN COUNTIES.  SEVERE THUNDERSTORM
WATCH NUMBER 97 CONTINUES IN EFFECT OVER MOST OF CENTRAL AND
NORTHEASTERN NORTH CAROLINA UNTIL MIDNIGHT.

RFG
Special weather statement, Mar 5, 6:55 PM EST, 51 minutes before
NCZ001>005-018>021-033>037-048>056-058>065-060100-

SPECIAL WEATHER STATEMENT...CORRECTION FOR DATE
NATIONAL WEATHER SERVICE RALEIGH NC
655 PM EST WED MAR 5 1997

THE TORNADO WATCH NUMBER 95 FOR PORTIONS OF NORTHWESTERN AND THE
MOUNTAIN REGION OF NORTH CAROLINA HAS NOW BEEN CANCELLED.

THE TORNADO WATCH CONTINUES IN EFFECT UNTIL 9 PM FOR POLK...
RUTHERFORD...CLEVELAND AND LINCOLN COUNTIES.  SEVERE THUNDERSTORM
WATCH NUMBER 97 CONTINUES IN EFFECT OVER MOST OF CENTRAL AND
NORTHEASTERN NORTH CAROLINA UNTIL MIDNIGHT.

RFG
Local storm report, Mar 5, 7:13 PM EST, 33 minutes before
THE                                           COUNTY.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 5, 7:03 PM ESTSevere Thunderstorm WarningRAHGranville27 min
Mar 5, 7:29 PM ESTSevere Thunderstorm WarningRAHGranville16 min
Mar 5, 7:33 PM ESTSevere Thunderstorm WarningRAHFranklin, Wake42 min
Mar 5, 7:33 PM ESTSevere Thunderstorm WarningRAHVance42 min
Mar 5, 8:09 PM ESTSevere Thunderstorm WarningRAHJohnston, Nash36 min
Mar 5, 8:35 PM ESTSevere Thunderstorm WarningRAHEdgecombe, Wilson40 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.