Alert archive / North Carolina / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 233, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at Jul 20, 1998, 6:57 PM EDT for Randolph County, North Carolina. It was in force for 33 min. 1 report 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
- Jul 20, 1998, 6:57 PM EDT (22:57 UTC)
- Expired
- Jul 20, 1998, 7:30 PM EDT
- In force
- 33 min
- Issued by
- NWS Raleigh, NC
- Area
- Whole counties
County Randolph County, NC
The radar
The Raleigh/Durham radar (KRAX), 119 km from the middle of the area, began a volume at 22:59 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 20, 7:00 PM EDT | Thunderstorm Wind 50 | Ramseur, NC | Several trees were downed in southeast Randolph county. One large limb fell onto a car traveling on Highway 64 breaking the front glass and causing an accident. No one was injured. |
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 nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 11.0 hours before the alert went out and 42 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
- 24 J/kg
- Mixed-layer CIN
- -277 J/kg
- Mixed-layer LCL
- 1753 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -9 m²/s²
- 0-3 km storm-relative helicity
- 76 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
326 WUUS1 KRDU 202258 RRA SVRRDU NCC151-202330- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE RALEIGH NC 657 PM EDT MON JUL 20 1998 THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN RANDOLPH COUNTY * UNTIL 730 PM EDT * AT 655 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 8 MILES NORTHWEST OF SEAGROVE... MOVING SOUTH- SOUTHEAST AT 10 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... PISGAH AROUND 705 PM EDT DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS THIS STORM PRODUCED LARGE HAIL AND DAMAGING WINDS BETWEEN 630 AND 655 PM EDT. JBM
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, Jul 20, 6:35 PM EDT, 22 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
635 PM EDT MON JUL 20 1998
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0625 PM ASHEBORO NC WIND DAMAGE
07/20/98 RANDOLPH EMERGENCY MANAGEMENT
REPORTED TREES DOWNED ON
OLD LEXINGTON RD. ABOUT 5
MILES NW OF
ASHEBORO...DIME-SIZE HAIL
WAS ALSO REPORTED.The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 8:31 PM EDT | Severe Thunderstorm Warning | RAH | Scotland | 64 min |
| Jul 19, 9:00 PM EDT | Severe Thunderstorm Warning | RAH | Hoke | 50 min |
| Jul 20, 6:22 PM EDT | Severe Thunderstorm Warning | RAH | Randolph | 33 min |
| Jul 20, 7:05 PM EDT | Severe Thunderstorm Warning | RAH | Halifax | 35 min |
| Jul 20, 7:17 PM EDT | Flash Flood Warning | RAH | Randolph | 118 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; radar from the NEXRAD Level II archive.