Alert archive / North Carolina / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 18, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at Apr 2, 1990, 9:39 PM EDT for Wake County, North Carolina. It was in force for 51 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
- Apr 2, 1990, 9:39 PM EDT (01:39 UTC)
- Expired
- Apr 2, 1990, 10:30 PM EDT
- In force
- 51 min
- Issued by
- NWS Raleigh, NC
- Area
- Whole counties
County Wake County, NC
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 2, 10:00 PM EDT | Hail 1.75 | Wake, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 1.7 hours before the alert went out and 117 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
- 2 J/kg
- Mixed-layer CIN
- -119 J/kg
- Mixed-layer LCL
- 1514 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 106 m²/s²
- 0-3 km storm-relative helicity
- 157 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 030141
SVRRDU
NCC063-135-183-030230-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
939 PM EDT MON APR 2 1990
THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1030 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN NORTH CENTRAL NORTH CAROLINA
...SOUTHERN DURHAM...SOUTHERN ORANGE...NORTHERN WAKE
AT 930 PM EDT WEATHER RADAR SHOWED SEVERE THUNDERSTORMS EXTENDING FROM
NORTHERN CHATHAM COUNTY AND SOUTHERN ORANGE AND SOUTHERN DURHAM
COUNTIES TO NORTHWESTERN WAKE COUNTY. THESE STORMS WERE MOVING TO THE
EAST AT 30 MPH. NUMEROUS REPORTS OF MARBLE SIZE HAIL HAVE BEEN
RECEIVED FROM THESE STORMS. AT 926 PM DURHAM COUNTY SHERIFF DEPUTIES
REPORTED NICKEL SIZED HAIL JUST SOUTHEAST OF DURHAM CITY.
PEOPLE IN THE PATH OF THESE STORMS SHOULD BE ALERT FOR LARGE HAIL.
FREQUENT LIGHTNING AND LOCALLY HEAVY RAIN CAN OCCUR WITH ANY THUNDERSTORWhat 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, Apr 2, 5:10 PM EDT, 4 hours 29 minutes before
NCZ006-007-030330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENSBORO NC 510 PM EDT MON APR 2 1990 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 900 PM EDT FOR THE NORTHERN FOOTHILLS AND NORTHWEST PIEDMONT OF NORTH CAROLINA... AT 445 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWS AN AREA OF THUNDERSTORMS WITH HEAVY RAIN AND PEA SIZE HAIL MOVING THROUGH SOUTHERN ROCKINGHAM COUNTY...ALONG THE GUILFORD COUNTY LINE. ALL REPORTS ON THIS THUNDERSTORM HAS IT LEAVING PEA SIZE HAIL IN ITS WAKE. THE LARGER AREA HAS THUNDERSTORMS AND RAINSHOWERS COVERING ROCKINGHAM AND MOST OF CASWELL COUNTIES...THIS AREA IS MOVING EAST AT 40 MPH. OTHER THUNDERSTORMS WITH HEAVY RAIN HAVE DEVELOPED IN NORTHERN SURRY COUNTY JUST WEST OF MOUNT AIRY. NO MOVEMENT ON THIS STORM YET. ANOTHER THUNDERSTORM IS BEGINNING TO DEVELOPE IN SOUTHERN WILKES AND NORTHERN ALEXANDER COUNTIES. MOVEMENT ON THIS STORM IS EAST AT 30 MPH. PERSONS IN THE SEVERE THUNDERSTORM WATCH AREA SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND TAKE APPROPIATE ACTION IF NECCESSARY. IF YOU HAVE REPORTS OF HAIL...HIGH WINDS...VERY HEAVY DOWNPOURS OR ANY TYPE OF SEVERE WEATHER...MAKE THE REPORT TO THE COUNTY SHERIFF WHO WILL IN TURN FILE THE REPORT WITH THE NATIONAL WEATHER SERVICE. RJD
Special weather statement, Apr 2, 6:15 PM EDT, 3 hours 24 minutes before
NCZ006-007-030330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENSBORO NC 610 PM EDT MON APR 2 1990 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 900 PM EDT FOR THE NORTHERN FOOTHILLS...NORTHERN MOUNTAINS...AND NORTHWEST PIEDMONT OF NORTH CAROLINA... AT 600 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWS A WIDE LINE OF THUNDERSTORMS AND RAINSHOWERS THAT STRETCHES FROM THE NORTHEAST CORNER OF STOKES COUNTY ...THROUGH SURRY...FORSYTH...YADKIN...DAVIE...AND IREDELL COUNTIES.THE HEAVIEST THUNDERSTORMS ARE IN THE NORTHEAST CORNER STOKES COUNTY AND IN FORSYTH JUST WEST OF WINSTON-SALEM. THE LINE IS MOVING EAST AT 15 MPH. A THUNDERSTORM WITH HAIL AND HEAVY RAIN HAS MOVED OUT OF CASWELL AND ALAMANCE COUNTIES INTO ORANGE COUNTY...THIS STORM HAS SLOWED TO ABOUT 20 MPH AND HAS INCREASED IN INTENSITY. PERSONS IN THE SEVERE THUNDERSTORM WATCH AREA THIS EVENING SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND TAKE APPROPIA5TE ACTION IF NECESSARY. RJD
Local storm report, Apr 2, 6:51 PM EDT, 2 hours 48 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC
651 PM EDT MON APR 02 1990
TIME EVENT
630PM EDT FOLLOWING REPORTS RECEIVED FROM BASE WEATHER AT FORT
BRAGG NC IN HO_KE COUNTY.
3/4 INCH TO 11/2 INCH HAIL REPORTED 4 MILES SW OF FBG
1 INCH HAIL REPORTED 6 MILES S OF FBG
LBCSpecial weather statement, Apr 2, 7:05 PM EDT, 2 hours 34 minutes before
NCZ006-007-030330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENSBORO NC 700 PM EDT MON APR 2 1990 SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 900 PM EDT FOR THE NORTHERN FOOTHILLS...NORTHERN MOUNTAINS...AND NORTHWEST PIEDMONT OF NORTH CAROLINA. AT 650 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWS A WIDE LINE OF THUNDERSTORMS AND RAINSHOWERS MOVING THORUGH THE NORTHWEST PIEDMONT... THE LINE IS NOW OVER THE PIEDMONT TRIAD INTERNATIONAL AIRPORT. THE LINE LIES FROM THE NORTHWEST CORNER OF CASWELL COUNTY...THROUGH ROCKINGHAM...GUILFORD...FORSYTH...DAVIDSON...YADKIN...DAVIE...IREDELL AND JUST BEGINNING TO ENTER ROWAN COUNTY. THE HEAVIEST THUNDERSTORM ACTIVITY IS IN THE BROWNS SUMMIT AREA WHERE MARBLE SIZE HAIL HAS BEEN REPORTED. THE LINE IS MOVING EAST AT 20 MPH. PERSONS IN THE SEVERE THUNDERSTORM WATCH AREA THIS EVENING SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND SEEK SHELTER IF SEVERE WEATHER APPROACHES.k RJD
Special weather statement, Apr 2, 8:31 PM EDT, 1 hour 8 minutes before
NCZ006-007-030330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENSBORO NC 820 PM EDT MON APR 2 1990 SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 900 PM EDT FOR THE NORTHERN FOOTHILLS...NORTHERN MOUNTAINS...AND NORTHWEST PIEDMONT OF NORTH CAROLINA. AT 800 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWS A WIDE LINE OF THUNDERSTORMS AND RAINSHOWERS MOVING SLOWLY THROUGH THE NORTHWEST PIEDMONT. IN THE LAST 15 MINUTES THE NORTHERN END OF THIS LINE IN ALAMANCE...GUILFORD AND RANDOLPH COUNTIES HAS INCREASED IN INTENSITY. REPORTS OF PEA SIZE TO MARBLE SIZE HAVE BEEN RECIEVED FROM GUILFORD AND ALAMANCE COUNTIES. THESE THUNDERSTORMS ARE HANGING JUST UNDER THE SEVERE LEVEL ALL EVENING...WINDS HAVE BEEN LIGHT AND ALSO RAINS HAVE BEEN LIGHT. OTHER THUNDERSTORMS AND RAINSHOWERS ARE IN FORSYTH...DAVIE...DAVIDSON... AND ROWAN COUNTIES. THE LINE OF THUNDERSTORMS IS MOVING EAST AT 20 MPH. ON THE LIGHTER SIDE...THE COMBINATION OF TOWERING CUMULONIMBUS CLOUDS... RAINSHOWERS...VIVID LIGHTNING AND BLUE SKIES TO WEST MADE FOR A SPECTAULAR SUNSET. PERSONS IN THE SEVERE THUNDERSTORM WATCH AREA SHOULD ON LOOKOUT FOR SEVERE WEATHER THIS EVENING AND BE PREPARED TO TAKE ACTION IF SEVERE WEATHER5 APPROACHES. STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST STATEMENTS AND ANY POSSIBLE WARNINGS. RJD
Special weather statement, Apr 2, 9:14 PM EDT, 25 minutes before
NCZ006-007-030330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENSBORO NC 820 PM EDT MON APR 2 1990 THE SEVERE THUNDERSTORM WATCH HAS EXPIRED ACROSS THE NORTHERN MOUNTAINS...NORTHERN FOOTHILLS...AND NORTHWEST PIEDMONT OF NORTH CAROLINA... AT 900 PM EDT NATIONAL WEATHER SERVICE RADAR SHOWS A ILL DEFINED LINE OF THUNDERSTORMS AND RAINSHOWERS ARE STILL LINGERING IN ALAMANCE AND RANDOLPH COUNTIES IN THE NORTHWEST PIEDMONT. IN THE NORTHWEST CORNER OF RANDOLPH COUNTY THERE IS STILL A THUNDERSTORM WHICH MAY PRODUCE PEA SIZE HAIL BEFORE IT MOVES EAST OUT OF THE COUNTY. THIS WILL BE THE LAST STATEMENT FROM THIS OFFICE ON THIS WEATHER EVENT UNLESS CONDITIONS CHANGE AND WARRANT A STATEMlENT OR WARNING. RJD
The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 2, 8:31 PM EDT | Severe Thunderstorm Warning | RAH | Franklin, Granville, Vance | 59 min |
| Apr 2, 8:31 PM EDT | Severe Thunderstorm Warning | RAH | Durham, Orange | 59 min |
| Apr 2, 8:51 PM EDT | Tornado Warning | RAH | Franklin, Vance | 39 min |
| Apr 2, 9:08 PM EDT | Severe Thunderstorm Warning | RAH | Chatham | 52 min |
| Apr 2, 9:39 PM EDT | Severe Thunderstorm Warning | RAH | Durham, Orange | 51 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.