Alert archive / North Carolina / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 70, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at May 7, 1998, 6:30 PM EDT for Forsyth County, North Carolina. It was in force for 35 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
- May 7, 1998, 6:30 PM EDT (22:30 UTC)
- Expired
- May 7, 1998, 7:05 PM EDT
- In force
- 35 min
- Issued by
- NWS Raleigh, NC
- Area
- Whole counties
County Forsyth County, NC
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 7, 6:30 PM EDT | Tornado F3 | Clemmons, NC | A large tornado tore through the Waterford Subdivision of Clemmons in southwest Forsyth county. The initial touchdown was at 630 pm local time. Several homes were completely destroyed, several hundred sustained major roof, wall, and window damage. Tree damag |
| May 7, 7:00 PM EDT | Hail 1 | Kernersville, NC | Quarter size hail fell on the northwest side of Kernersville. This event was reported by Triad Skywarn. |
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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 7, 5:30 PM EDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 10.5 hours before the alert went out and 32 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
- 49 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 523 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 53 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
034 WUUS1 KRDU 072231 RRA SVRRDU NCC067-072305- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE RALEIGH NC 630 PM EDT THU MAY 7 1998 THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... FORSYTH COUNTY * UNTIL 705 PM EDT * AT 629 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM BETWEEN PFAFFTOWN AND CLEMMONS... MOVING NORTHEAST AT 30 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... WINSTON-SALEM WALKERTOWN DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS RAN
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
Local storm report, May 7, 5:26 PM EDT, 1 hour 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
526 PM EDT THU MAY 07 1998
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0510 PM CONCORD NC 1.75 INCH HAIL
05/07/98 PERSON OCCURRED AT THE SOUTH END
OF HYCO LAKE. REPORTED BY
COUNTY MAGISTRATE.The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 7, 4:57 PM EDT | Severe Thunderstorm Warning | RAH | Person | 33 min |
| May 7, 6:41 PM EDT | Tornado Warning | RAH | Davidson, Forsyth | 34 min |
| May 7, 7:13 PM EDT | Severe Thunderstorm Warning | RAH | Guilford, Randolph | 32 min |
| May 7, 7:19 PM EDT | Tornado Warning | RAH | Davidson | 16 min |
| May 7, 7:27 PM EDT | Tornado Warning | RAH | Guilford | 33 min |
| May 7, 7:44 PM EDT | Tornado Warning | RAH | Randolph | 31 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 1998Every severe thunderstorm warning in 1998
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.