Alert archive / North Carolina / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 2, NWS Blacksburg, VA
NWS Blacksburg, VA issued this severe thunderstorm warning at Apr 15, 1987, 6:00 PM EDT for Davidson County, Forsyth County, North Carolina. It was in force for 60 min. 2 reports 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 15, 1987, 6:00 PM EDT (22:00 UTC)
- Expired
- Apr 15, 1987, 7:00 PM EDT
- In force
- 60 min
- Issued by
- NWS Blacksburg, VA
- Area
- Whole counties
Counties Davidson County, NC, Forsyth 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 15, 6:38 PM EDT | Thunderstorm Wind 0 | Forsyth, NC | |
| Apr 15, 6:50 PM EDT | Hail 1.75 | Davidson, 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, 10.0 hours before the alert went out and 33 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 616 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 236 m²/s²
- 0-3 km storm-relative helicity
- 277 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 KGSO 152202 SVRGSO NCC057-067-159-152300- BULLETIN-IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GREENSBORO NC TIME 600 PM EDT WED APR 15 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 700 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF NORTH CAROLINA...DAVIDSON...FORSYTH...ROWAN AT 550 PM EDT RADAR SHOWED SEVERE THUNDERSTORMS IN DAVIDSON..FORSYTH AND ROWAN COUNTIES MOVING NORTHEAST AT ABOUT 10 MPH. DAMAGING WINDS...LARGE HAIL..VERY HEAVY DOWNPOURS AND DANGEROUS LIGHTNING ARE POSSIBLE WITH SEVERE THUNDERSTORMS. TORNDOES ARE ALSO POSSIBLE WITH THESE STORMS. A SEVERE THUNDERSTORM WARNING MEANS SEVERE THUNDERSTORMS HAVE BEEN SIGHTED OR INDICATED BY RADAR. A SEVERE THUNDERSTORM HAS WINDS STRONGER THAN 57 MPH OR HAIL 3/4 OF AN INCH OR LARGER. IF THREATENING WEATHER APPROACHES YOU...TAKE COVER IMMEDIATELY. REPORT ANY SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGEN1CY FOR RELAY TO THE NATIONAL WEATHER SERVICE. RBN
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, Apr 15, 12:03 PM EDT, 5 hours 57 minutes before
^WBCSPSROA SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ROANOKE VA 1150 AM EDT WED APR 15 1985 ...THUNDERSTORMS MOVING THROUGH SOUTHWEST AND SOUTHCENTRAL VIRGINIA... AT 1145AM A LARGE AREA OF MODERATE RAIN OVER SOUTHWEST VIRGINIA IS ACCOMPANIED BY SCATTERED THUNDERSTORMS. THE RAIN AND THE THUNDERSTORMS ARE MOVING GENERALLY ON A NORTHEAST TRACK THROUGH ROANOKE AND MONTGOMERY COUNTIES PRIMARILY. CONSIDERABLE ACTIVITY IS ALSO LOCATED OVER FLOYD, FRANKLIN, PATRICK, CRAIG, HENRY AND BOTETOURT COUNTIES. WITH THE PRESENT COURSE AND SPEED THE THUNDERSTORMS SHOULD BE MOVING OUT OF THE ABOVE COUNTIES WITHIN ONE TO TWO HOURS. SMALLER STREAMS IN THE ABOVE COUNTIES WILL LIKELY BE NEAR OR SLI>GHTLY OVER BANKFUL SO PERSONS LIVING ALONG TYPICAL FLOOD PRONE AREAS SHOULD BE ALERT TO POTENTIAL FLOODING. STAY TUNED TO MEDIA AND NOAA WEATHER RADIO IN THE EVENT WARNINGS ARE NECESSARY.$$ HM
The office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 4:45 PM EDT | Severe Thunderstorm Warning | RNK | Rowan | 60 min |
| Apr 15, 6:00 PM EDT | Severe Thunderstorm Warning | RNK | Rowan | 60 min |
| Apr 15, 6:23 PM EDT | Flash Flood Warning | RNK | Davidson, Rowan | 4 hr |
| Apr 15, 7:13 PM EDT | Severe Thunderstorm Warning | RNK | Davidson, Guilford | 62 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.