Alert archive / North Carolina / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 112, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at Aug 20, 1997, 2:40 PM EDT for Warren County, North Carolina. It was in force for 35 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
- Aug 20, 1997, 2:40 PM EDT (18:40 UTC)
- Expired
- Aug 20, 1997, 3:15 PM EDT
- In force
- 35 min
- Issued by
- NWS Raleigh, NC
- Area
- Whole counties
County Warren County, NC
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 20, 3:00 PM EDT | Thunderstorm Wind 50 | Wise, NC | TREES WERE BLOWN DOWN IN WISE. TREES AND POWER LINES WERE ALSO REPORTED DOWN IN OTHER SECTIONS OF THE COUNTY...INCLUDING WARRENTON. |
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 nearest sounding before it
Roanoke, VA (KRNK), launched 12:00Z, 6.7 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.
- Mixed-layer CAPE
- 312 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 572 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 116 m²/s²
- 0-3 km storm-relative helicity
- 135 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KRDU 201842 RRA SVRRDU NCC185-201915- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC 240 PM EDT WED AUG 20 1997 THE NATIONAL WEATHER SERVICE IN RALEIGH/DURHAM HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 315 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTH CENTRAL NORTH CAROLINA ...WARREN COUNTY AT 240 PM...NWS DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM APPROACHING WESTERN WARREN COUNTY. THE STORM WAS LOCATED ABOUT 5 SOUTHWEST OF WARRENTON MOVING EAST ABOUT 35 MPH. THIS STORM DAMAGED HOMES NEAR THE TOWN OF HENDERSON AROUND 230 PM. 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. DELGADO &
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, Aug 20, 11:00 AM EDT, 3 hours 40 minutes before
NCZ007>011-021>028-038>043-073>078-083>086-088>089-210000- SEVERE WEATHER OUTLOOK FOR CENTRAL NORTH CAROLINA NATIONAL WEATHER SERVICE RALEIGH NC 1100 AM EDT WED AUG 20 1997 ...SLIGHT RISK OF SEVERE THUNDERSTORMS OVER CENTRAL NORTH CAROLINA TODAY... (THE SEVERE WEATHER OUTLOOK FOR CENTRAL NORTH CAROLINA APPLIES ONLY TO THE COUNTIES LISTED AT THE END OF TEXT.) THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS CENTRAL NORTH CAROLINA THIS AFTERNOON AND THIS EVENING...MAINLY EAST OF A RALEIGH TO FAYETTEVILLE LINE. THE MAIN THREAT WILL BE FROM DAMAGING WINDS. LIGHTNING IS A THREAT WITH ANY THUNDERSTORM. A TROUGH OF LOW PRESSURE WILL MOVE THROUGH CENTRAL NORTH CAROLINA TODAY...BRINGING WITH IT SCATTERED SHOWERS AND THUNDERSTORMS. THE SHOWERS AND STORMS ARE EXPECTED TO BE MOST NUMEROUS ALONG THE VIRGINIA BORDER. SOME OF THE STORMS COULD BECOME SEVERE. HOWEVER...THE GREATEST THREAT OF SEVERE WEATHER EXISTS EAST OF A RALEIGH TO FAYETTEVILLE LINE...WHERE DAYTIME HEATING HAS MADE THE ATMOSPHERE UNSTABLE. SPOTTER ACTIVATION MAY BE REQUIRED AFTER 2 PM THIS AFTERNOON. STAY TUNED TO NOAA WEATHER RADIO FOR ADDITIONAL STATEMENTS OR POSSIBLE WATCHES AND WARNINGS. RAN ********************************************************************* 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, Aug 20, 11:03 AM EDT, 3 hours 37 minutes before
NCZ007>011-021>028-038>043-073>078-083>086-088>089-210000- SEVERE WEATHER OUTLOOK FOR CENTRAL NORTH CAROLINA NATIONAL WEATHER SERVICE RALEIGH NC 1100 AM EDT WED AUG 20 1997 ...SLIGHT RISK OF SEVERE THUNDERSTORMS OVER CENTRAL NORTH CAROLINA TODAY... (THE SEVERE WEATHER OUTLOOK FOR CENTRAL NORTH CAROLINA APPLIES ONLY TO THE COUNTIES LISTED AT THE END OF TEXT.) THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS CENTRAL NORTH CAROLINA THIS AFTERNOON AND THIS EVENING...MAINLY EAST OF A RALEIGH TO FAYETTEVILLE LINE. THE MAIN THREAT WILL BE FROM DAMAGING WINDS. LIGHTNING IS A THREAT WITH ANY THUNDERSTORM. A TROUGH OF LOW PRESSURE WILL MOVE THROUGH CENTRAL NORTH CAROLINA TODAY...BRINGING WITH IT SCATTERED SHOWERS AND THUNDERSTORMS. THE SHOWERS AND STORMS ARE EXPECTED TO BE MOST NUMEROUS ALONG THE VIRGINIA BORDER. SOME OF THE STORMS COULD BECOME SEVERE. HOWEVER...THE GREATEST THREAT OF SEVERE WEATHER EXISTS EAST OF A RALEIGH TO FAYETTEVILLE LINE...WHERE DAYTIME HEATING HAS MADE THE ATMOSPHERE UNSTABLE. SPOTTER ACTIVATION MAY BE REQUIRED AFTER 2 PM THIS AFTERNOON. STAY TUNED TO NOAA WEATHER RADIO FOR ADDITIONAL STATEMENTS OR POSSIBLE WATCHES AND WARNINGS. RAN ********************************************************************* 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
The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 1:57 PM EDT | Severe Thunderstorm Warning | RAH | Granville, Vance | 48 min |
| Aug 20, 3:11 PM EDT | Severe Thunderstorm Warning | RAH | Franklin | 34 min |
| Aug 20, 4:52 PM EDT | Severe Thunderstorm Warning | RAH | Chatham, Wake | 38 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.