Alert archive / North Carolina / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 114, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at Aug 20, 1997, 4:52 PM EDT for Chatham County, Wake County, North Carolina. It was in force for 38 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
- Aug 20, 1997, 4:52 PM EDT (20:52 UTC)
- Expired
- Aug 20, 1997, 5:30 PM EDT
- In force
- 38 min
- Issued by
- NWS Raleigh, NC
- Area
- Whole counties
Counties Chatham County, NC, Wake County, NC
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 20, 2:45 PM EDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 8.9 hours before the alert went out and 93 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
- 484 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 525 m above ground
- 0-6 km bulk shear
- 0 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 0 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, 5 hours 52 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, 5 hours 49 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
Local storm report, Aug 20, 2:49 PM EDT, 2 hours 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC
249 PM EDT WED AUG 20 1997
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0240 PM HENDERSON NC WIND DAMAGE
08/20/97 VANCE VANCE COUNTY 911 CENTER
REPORTED A ROOF BLOWN OFF
BUILDING IN HENDERSON
NUMEROUS TREES DOWN AND
POWER OUT ALL OVER THE
COUNTY.Local storm report, Aug 20, 2:51 PM EDT, 2 hours 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC
249 PM EDT WED AUG 20 1997
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0240 PM HENDERSON NC WIND DAMAGE
08/20/97 VANCE VANCE COUNTY 911 CENTER
REPORTED A ROOF BLOWN OFF
BUILDING IN HENDERSON
NUMEROUS TREES DOWN AND
POWER OUT ALL OVER THE
COUNTY.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, 2:40 PM EDT | Severe Thunderstorm Warning | RAH | Warren | 35 min |
| Aug 20, 3:11 PM EDT | Severe Thunderstorm Warning | RAH | Franklin | 34 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.