Alert archive / North Carolina / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 49, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at Aug 21, 1987, 4:11 PM EDT for Harnett 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
- Aug 21, 1987, 4:11 PM EDT (20:11 UTC)
- Expired
- Aug 21, 1987, 4:40 PM EDT
- In force
- 29 min
- Issued by
- NWS Raleigh, NC
- Area
- Whole counties
County Harnett 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 |
|---|---|---|---|
| Aug 21, 4:30 PM EDT | Thunderstorm Wind 0 | Harnett, 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 12:00Z, 8.2 hours before the alert went out and 122 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
- 2177 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 687 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 104 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KRDU 212011 SVRRDU NCC085-212040- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE RALEIGH NC 411 PM EDT FRI AUG 21 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 440 PM EDT FOR THE FOLLOWING COUNTY OF NORTH CAROLINA... WESTERN HARNETT AT 405 PM QUARTER SIZE HAIL WAS REPORTED IN SWANN ALONG THE LEE HARNETT COUNTY LINE. THIS STORM WAS MOVING SLOWLY TO THE SOUTHEAST.< PEOPLE IN THE PATH OF THIS STORM SHOULD BE ALERT FOR LARGE HAIL... DAMAGING WINDS...FREQUENT LIGHTNING AND LOCALLY HEAVY RAIN. DMD
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 21, 2:16 PM EDT, 1 hour 55 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC 215 PM EDT FRI AUG 21 1987 SCATTERED SHOWERS AND THUNDERSTORMS ARE DEVELOPING OVER THE PIEDMONT AND CENTRAL COASTAL PLAINS. AT 210 PM NATIONAL WEATHER SERVICE RADAR SHOWED SCATTERED SHOWERS AND ISOLATED HEAVY THUNDERSTORMS OVER THE PIEDMONT AND CENTRAL COASTAL PLAINS. THE STRONGEST STORMS WERE IN THE NORTHEAST PIEDMONT IN WAKE...DURHAM AND ORANGE COUNTIES. THESE STORMS ARE MOVING TO THE SOUTHEAST ABOUT 15 MILES AN HOUR. PERSONS IN THE PATH OF THESE STORMS MAY EXPERIENCE BRIEF HEAVY DOWNPOURS...GUSTY WINDS AND SOME SMALL HAIL. LISTEN TO LOCAL RADIO..TV..OR WEATHER RADIO FOR LATER STATEMENTS OR POSSIBLE WARNINGS. RA
Special weather statement, Aug 21, 2:30 PM EDT, 1 hour 41 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENSBORO NC 427 PM EDT FRI AUG 21 1987 ...VERY STRONG THUNDERSTORMS IN SOUTHERN ALAMANCE COUNTY OF NORTHWEST PIEDMONT OF NORTH CAROLINA... AT 420 PM RADAR SHOWED A VERY STRONG THUNDERSTORM IN SOUTHERN ALAMANCE ALONG AND TO THE WEST OF THE HAR RIVER. THE STORM WAS MOVING SOUTHEAST AT 10 TO 15 MPH. PERSONS IN SOUTHERN ALAMANCE COUNTY CAN EXPECT HEAVY DOWNPOURS... STRONG GUSTY WINDS AND POSSIBLY SOME HAIL. LISTEN TO NOAA WEATHER RADIO OR YOUR LOCAL RADIO AND TV FOR FURTHER UPDATES FROM THE NATIONAL WEATHER SERVICE. GR
Special weather statement, Aug 21, 2:38 PM EDT, 1 hour 33 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC 235 PM EDT FRI AUG 21 1987 SCATTERED SHOWERS AND THUNDERSTORMS CONTINUE OVER THE PIEDMONT AND CENTRAL COASTAL PLAINS. AT 230 PM NATIONAL WEATHER SERVICE RADAR SHOWED SCATTERED SHOWERS AND ISOLATED HEAVY THUNDERSTORMS OVER THE PIEDMONT AND CENTRAL COASTAL PLAINS. THE STRONGEST STORMS WERE IN ALAMANCE..DURHAM... ORANGE...CHATHAM AND WAKE COUNTIES. A LINE OF HEAVY THUNDERSTORMS IN ALAMANCE AND CHATHAM COUNTIES ALONG THE HAW RIVER BASIN IS PRODUCING HEAVY RAINS. THUS THIS COULD CAUSE RAPID RISE ALONG THE HAW RIVER FOR THE NEXT SEVERAL HOURS. ALL STORMS WERE MOVING TO THE SOUTHEAST ABOUT 15 MILES AN HOUR. PERSONS IN T HE PATH OF THESE STORMS MAY EXPERIENCE BRIEF HEAVY DOWNPOURS...GUSTY WINDS AND SOME SMALL HAIL. LISTEN TO LOCAL RADIO..TV..OR WEATHER RADIO FOR LATER STATEMENTS OR POSSIBLE WARNINGS. RA
The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 2:51 PM EDT | Severe Thunderstorm Warning | RAH | Wake | 59 min |
| Aug 21, 3:49 PM EDT | Severe Thunderstorm Warning | RAH | Lee | 31 min |
| Aug 21, 4:46 PM EDT | Severe Thunderstorm Warning | RAH | Moore | 34 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 1987Every severe thunderstorm warning in 1987
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.