Alert archive / North Carolina / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 71, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at May 7, 1998, 7:13 PM EDT for Guilford County, Randolph County, North Carolina. It was in force for 32 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, 7:13 PM EDT (23:13 UTC)
- Expired
- May 7, 1998, 7:45 PM EDT
- In force
- 32 min
- Issued by
- NWS Raleigh, NC
- Area
- Whole counties
Counties Guilford County, NC, Randolph County, NC
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 7, 7:20 PM EDT | Tornado F1 | Greensboro Arpt, NC | A tornado touched down approximately 1 mile southeast of the Piedmont-Triad International Airport near Greensboro. The first damage occurred just south of West Friendly Avenue. The tornado moved to the southeast and lifted at Jamestown Road approximately 1.5 |
| May 7, 7:30 PM EDT | Hail 0.88 | High Pt, 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.
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, 7:00 PM EDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 11.2 hours before the alert went out and 23 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
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 47 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.Local storm report, May 7, 6:40 PM EDT, 33 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
640 PM EDT THU MAY 07 1998
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0635 PM CLEMMONS NC WIND DAMAGE
05/07/98 FORSYTH ROOF TORN OFF HOUSE.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, 6:30 PM EDT | Severe Thunderstorm Warning | RAH | Forsyth | 35 min |
| May 7, 6:41 PM EDT | Tornado Warning | RAH | Davidson, Forsyth | 34 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.