Alert archive / North Carolina / Tornado Warnings in 1998
Tornado Warning 20, NWS Raleigh, NC
NWS Raleigh, NC issued this tornado warning at May 7, 1998, 7:27 PM EDT for Guilford County, North Carolina. It was in force for 33 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, 7:27 PM EDT (23:27 UTC)
- Expired
- May 7, 1998, 8:00 PM EDT
- In force
- 33 min
- Issued by
- NWS Raleigh, NC
- Area
- Whole counties
County Guilford County, NC
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 7, 7:30 PM EDT | Hail 0.88 | High Pt, NC | |
| May 7, 8:07 PM EDT | Tornado F1 | Climax, 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, 11.5 hours before the alert went out and 10 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.
000 TTAA00 KRDU 072327 RRA TORRDU NCC081-080000- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE RALEIGH NC 727 PM EDT THU MAY 7 1998 THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A * TORNADO WARNING FOR... GUILFORD COUNTY * UNTIL 800 PM EDT * AT 725 PM... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A TORNADO WESTERN GREENSBORO... MOVING EAST AT 30 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... GREENSBORO A TORNADO IS ON THE GROUND! GO TO THE BASEMENT! IF A BASEMENT IS NOT AVAILABLE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR! PWB
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, 7:13 PM EDT | Severe Thunderstorm Warning | RAH | Guilford, Randolph | 32 min |
| May 7, 7:19 PM EDT | Tornado Warning | RAH | Davidson | 16 min |
| May 7, 7:44 PM EDT | Tornado Warning | RAH | Randolph | 31 min |
Nearby
Tornado Warnings in North Carolina, 1998Every tornado warning in 1998Tornadoes 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.