Alert archive / North Carolina / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 49, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at May 13, 1999, 10:22 PM EDT for Franklin County, North Carolina. It was in force for 33 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
- May 13, 1999, 10:22 PM EDT (02:22 UTC)
- Expired
- May 13, 1999, 10:55 PM EDT
- In force
- 33 min
- Issued by
- NWS Raleigh, NC
- Area
- Whole counties
County Franklin County, NC
The radar
The Raleigh/Durham radar (KRAX), 50 km from the middle of the area, began a volume at 02:24 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.
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 2.4 hours before the alert went out and 145 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
- 308 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 1364 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 10 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
999 WUUS1 KRDU 140223 RRA SVRRDU NCC069-140255- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE RALEIGH NC 1022 PM EDT THU MAY 13 1999 THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN FRANKLIN COUNTY * UNTIL 1055 PM EDT * AT 1018 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER SOUTHERN FRANKLIN COUNTY NEAR NEW HOPE.. .. MOVING SOUTHEAST AROUND 10 MPH.. * THE SEVERE THUNDERSTORM WILL BE NEAR... BUNN AT 1025 PM PILOT AT 1030 PM THIS IS A DANGEROUS STORM STAY INDOORS AWAY FROM WINDOWS. MLM
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 13, 7:31 PM EDT, 2 hours 51 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC
731 PM EDT THU MAY 13 1999
TIME (EDT) .....CITY LOCATION....... ST ...EVENT/REMARKS...
.....COUNTY LOCATION.....
650 PM DENTON NC .75 INCH HAIL
05/13/99 DAVIDSON PEA TO DIME SIZE HAIL
REPORTED COVERING THE
GROUND IN DENTON
SGYLocal storm report, May 13, 7:31 PM EDT, 2 hours 51 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC
731 PM EDT THU MAY 13 1999
TIME (EDT) .....CITY LOCATION....... ST ...EVENT/REMARKS...
.....COUNTY LOCATION.....
650 PM DENTON NC .75 INCH HAIL
05/13/99 DAVIDSON PEA TO DIME SIZE HAIL
REPORTED COVERING THE
GROUND IN DENTON
SGYLocal storm report, May 13, 8:30 PM EDT, 1 hour 52 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC
830 PM EDT THU MAY 13 1999
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0606 PM WATKINS NC .75 INCH HAIL
05/13/99 VANCE DIME SIZED HAIL IN WATKINS
AT 806 PM.Local storm report, May 13, 8:30 PM EDT, 1 hour 52 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED TIME
NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC
830 PM EDT THU MAY 13 1999
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0606 PM WATKINS NC .75 INCH HAIL
05/13/99 VANCE DIME SIZED HAIL IN WATKINS
AT 606 PM.The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 13, 8:02 PM EDT | Severe Thunderstorm Warning | RAH | Vance | 33 min |
| May 14, 2:24 PM EDT | Flash Flood Warning | RAH | Hoke | 3 hr |
Nearby
Severe Thunderstorm Warnings in North Carolina, 1999Every severe thunderstorm warning in 1999
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; radar from the NEXRAD Level II archive.