Alert archive / North Carolina / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 65, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at Jul 11, 1990, 6:50 PM EDT for Durham County, North Carolina. It was in force for 25 min.
The area
The counties it named.
The facts
- Issued
- Jul 11, 1990, 6:50 PM EDT (22:50 UTC)
- Expired
- Jul 11, 1990, 7:15 PM EDT
- In force
- 25 min
- Issued by
- NWS Raleigh, NC
- Area
- Whole counties
County Durham County, NC
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 10.8 hours before the alert went out and 92 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
- 889 J/kg
- Mixed-layer CIN
- -116 J/kg
- Mixed-layer LCL
- 1015 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KRDU 112250 SVRRDU NCC063-112315- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE RALEIGH NC 650 PM EDT WED JUL 11 1990 THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 715 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTH CENTRAL NORTH CAROLINA ...NORTHERN DURHAM COUNTY AT 650 PM...NATIONAL WEATHER SERVICE RADAR DETECTED A SEVERE THUNDERSTORM OVER NORTHERN DURHAM COUNTY. THE THUNDERSTORM WAS MOVING TO THE NORTHEAST AT ABOUT 20 MPH AND WILL BE AFFECTING GRANVILLE COUNTY BEFORE 730 PM. PEOPLE IN THE PATH OF THIS STORM SHOULD BE ALERT FOR LARGE HAIL AND DAMAGING WINDS. FREQUENT LIGHTNING AND LOCALLY HEAVY RAIN CAN OCCUR WITH ANY THUNDERSTORM.
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 11, 4:28 PM EDT, 2 hours 22 minutes before
NCZ006-007-112130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENSBORO, NC 430 PM EDT WED JUL 11 1990 ...THUNDERSTORMS WITH VERY HEAVY RAIN IN THE NORTHERN FOOTHILLS AND NORTHWEST PIEDMONT OF NORTH CAROLINA... AT 425 PM RADAR SHOWED THUNDERSTORMS WITH VERY HEAVY RAIN OVER STOKES.. SURRY..YADKIN AND WILKES COUNTIES IN THE NORTHERN FOOTHILLS AND NORTHWEST PIEDMONT OF NORTH CAROLINA. THE STORMS EXTENDED FROM JUST NORTH AND WEST OF HANGING ROCK STATE PARK IN STOKES COUNTY TO 5 MILES EAST OF NORTH WILKESBORO. THE STORMS WERE MOVING EAST AT 10 MPH. ALONG WITH THE VERY HEAVY RAIN THESE STORMS MAY PRODUCE FREQUENT DEADLY LIGHTNING..STRONG GUSTY WINDS AND SOME HAIL. PERSONS IN /STOKES..SURRY..YADKIN AND WILKES COUNTIES SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND SHOULD TAKE SHELTER IF STORMS APPROACH. RBN
Special weather statement, Jul 11, 5:12 PM EDT, 1 hour 38 minutes before
NCZ006-007-112200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENSBORO, NC 510 PM EDT WED JUL 11 1990 ...THUNDERSTORMS WITH VERY HEAVY RAIN IN THE NORTHERN FOOTHILLS AND NORTHWEST PIEDMONT OF NORTH CAROLINA... AT 505 PM RADAR SHOWED THUNDERSTORMS WITH VERY HEAVY RAIN OVER SURRY.. YADKIN..ROCKINGHAM AND CASWELL COUNTIES IN THE NORTHERN FOOTHILLS AND NORTHWEST PIEDMONT OF NORTH CAROLINA. THE STORMS WERE NEAR THE YADKIN RIVER..5 MILES SOUTH OF PILOT MOUNTAIN AND ALSO ALONG THE ROCKINGHAM AND CASWELL COUNTY LINE JUST SOUTHWEST OF DANVILLE VIRGINIA. THE STORMS WERE MOVING EAST AT ABOUT 10 MPH. ALONG WITH THE VERY HEAVY RAIN THESE STORMS MAY PRODUCE FREQUENT DEADLY LIGHTNING..fSTRONG GUSTY WINDS AND SOME HAIL. PERSONS IN SURRY..YADKIN..STOKES..ROCKINGHAM AND CASWELL COUNTIES SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND SHOULD TAKE SHELTER IF STORMS APPROACH. RBN
Special weather statement, Jul 11, 6:00 PM EDT, 50 minutes before
NCZ006-007-112200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENSBORO, NC 600 PM EDT WED JUL 11 1990 ...THUNDERSTORMS WITH VERY HEAVY RAIN IN THE NORTHERN FOOTHILLS AND NORTHWEST PIEDMONT OF NORTH CAROLINA... AT 555 PM RADAR SHOWED THUNDERSTORMS WITH VERY HEAVY RAIN OVER ALEXANDER ..SOUTHERN WILKES..SOUTHEAST SURRY AND CENTRAL YADKIN COUNTIES IN THE NORTHERN FOOTHILLS AND NORTHWEST PIEDMONT OF NORTH CAROLINA. THE STORMS WERE MOVING EAST AT ABOUT 10 MPH. ALONG WITH THE VERY HEAVY RAIN THESE STORMS MAY PRODUCE FREQUENT DEADLY LIGHTNING..STRONG GUSTY WINDS AND SOME HAIL. PERSONS IN SURRY..YADKIN..STOKES..WILKES AND ALEXANDER COUNTIES SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND SHOULD TAKE SHELTER IF STORMS APPROACH. RBN
Special weather statement, Jul 11, 6:12 PM EDT, 38 minutes before
NCZ003>005-014-015-DDHHMM- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC 611 PM EDT WED JUL 11 1990 AT 610 PM...SCATTERED SHOWERS AND THUNDERSTORMS WERE OCCURRING OVER THE NORTHEAST PIEDMONT AND SANDHILLS OF NORTH CAROLINA. SOME OF THE THUNDERSTORMS WERE PRODUCING FREQUENT LIGHTNING AND HEAVY RAIN. AT 516 PM...A THUNDERSTORM PRODUCED A WIND GUST OF 51 MPH AT FORT BRAGG. A SHORT LINE OF THUNDERSTORMS EXTENDED FROM NORTHERN GRANVILLE COUNTY SOUTHWEST INTO PERSON COUNTY. THE THUNDERSTORMS WERE MOVING TO THE SOUTHEAST AT ABOUT 20 MPH. THE POTENTIAL FOR STRENGTHENING WILL EXIST AS THE STORMS MOVE ACROSS THE NORTHERN PORTION OF THE NORTHEAST PIEDMONT...ESPECIALLY GRANVILLE...VANCE...AND WARREN COUNTIES. ^ NO SHOWERS OR THUNDERSTORMS WERE OVER THE NORTHERN AND CENTRAL COASTAL PLAIN AT 610 PM. HOWEVER...THE POSSIBILITY EXISTS THAT SCATTERED THUNDERSTORMS WILL DEVELOP LATER IN THE EVENING. LGL
Local storm report, Jul 11, 6:28 PM EDT, 22 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC
627 PM EDT WED JUL 11 1990
TIME EVENT
600 PM EDT CHAPEL HILL...ORANGE COUNTY
APPROX. DURHAM...DURHAM COUNTY
TREES DOWN DUE TO THUNDERSTORM WINDS
REPORT RELAYED TO NWS BY WTVD IN DURHAM
LGLSpecial weather statement, Jul 11, 6:43 PM EDT, 7 minutes before
NCZ006-007-112330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENSBORO, NC 645 PM EDT WED JUL 11 1990 ...THUNDERSTORMS WITH VERY HEAVY RAIN IN THE NORTHERN FOOTHILLS AND NORTHWEST PIEDMONT OF NORTH CAROLINA... AT 640 PM RADAR SHOWED THUNDERSTORMS WITH VERY HEAVY RAIN ALONG THE WILKES AND YADKIN COUNTY LINE BETWEEN YADKINVILLE AND WILKESBORO AND ALSO 5 MILES SOUTHEAST OF BURLINGTON IN ALAMANCE COUNTY. THE STORMS WERE MOVING SOUTHEAST AT 5 TO 10 MPH. ALONG WITH THE VERY HEAVY RAIN THESE STORMS MAY PRODUCE FREQUENT DEADLY LIGHTNING..STRONG GUSTY WINDS AND SOME HAIL. PERSONS IN WILKES..YADKIN AND ALAMANCE COUNTIES SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND SHOULD TAKE SHELTER IF STORMS APPROACH. RBN
The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 6:57 PM EDT | Severe Thunderstorm Warning | RAH | Granville | 63 min |
| Jul 11, 7:07 PM EDT | Severe Thunderstorm Warning | RAH | Johnston | 53 min |
| Jul 11, 7:22 PM EDT | Severe Thunderstorm Warning | RAH | Franklin | 53 min |
| Jul 11, 7:50 PM EDT | Severe Thunderstorm Warning | RAH | Wilson | 55 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 1990Every severe thunderstorm warning in 1990
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.