Alert archive / North Carolina / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 49, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at Apr 17, 1998, 7:48 PM EDT for Alamance County, North Carolina. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 17, 1998, 7:48 PM EDT (23:48 UTC)
- Expired
- Apr 17, 1998, 8:35 PM EDT
- In force
- 47 min
- Issued by
- NWS Raleigh, NC
- Area
- Whole counties
County Alamance County, NC
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 17, 7:30 PM EDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 11.8 hours before the alert went out and 45 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
- 77 J/kg
- Mixed-layer CIN
- -98 J/kg
- Mixed-layer LCL
- 541 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 277 m²/s²
- 0-3 km storm-relative helicity
- 274 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 172348 RRA SVRRDU NCC001-180035- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE RALEIGH NC 748 PM EDT FRI APR 17 1998 THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN ALAMANCE COUNTY * UNTIL 835 PM EDT * AT 750 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NEAR SNOWCAMP... MOVING EAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... SAXAPAHAW AROUND 755 PM THIS STORM HAS A HISTORY OF LARGE HAIL. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS! JWC
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, Apr 17, 6:50 PM EDT, 58 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC
650 PM EDT FRI APR 17 1998
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0610 PM WINSTON SALEM NC FLOODING
04/17/98 FORSYTH REYNOLDA RD AREA NEAR WAKE
FOREST UNIVERSITY.
0640 PM WELCOME NC .75 INCH HAIL
04/17/98 DAVIDSON REPORTED BY SKYWARN
SPOTTER. SOME HAIL
SLIGHTLY LARGER.Local storm report, Apr 17, 6:50 PM EDT, 58 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC
650 PM EDT FRI APR 17 1998
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0610 PM WINSTON SALEM NC FLOODING
04/17/98 FORSYTH REYNOLDA RD AREA NEAR WAKE
FOREST UNIVERSITY.
0640 PM WELCOME NC .75 INCH HAIL
04/17/98 DAVIDSON REPORTED BY SKYWARN
SPOTTER. SOME HAIL
SLIGHTLY LARGER.The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 17, 5:59 PM EDT | Flash Flood Warning | RAH | Forsyth | 3 hr |
| Apr 17, 6:05 PM EDT | Severe Thunderstorm Warning | RAH | Forsyth | 60 min |
| Apr 17, 6:21 PM EDT | Severe Thunderstorm Warning | RAH | Davidson | 59 min |
| Apr 17, 6:40 PM EDT | Severe Thunderstorm Warning | RAH | Guilford, Randolph | 60 min |
| Apr 17, 6:55 PM EDT | Tornado Warning | RAH | Guilford | 65 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; the sounding from the Mesonet's radiosonde archive.