Alert archive / North Carolina / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 18, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at Mar 21, 1999, 2:54 PM EST for Harnett County, Wake County, North Carolina. It was in force for 46 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
- Mar 21, 1999, 2:54 PM EST (19:54 UTC)
- Expired
- Mar 21, 1999, 3:40 PM EST
- In force
- 46 min
- Issued by
- NWS Raleigh, NC
- Area
- Whole counties
Counties Harnett County, NC, Wake County, NC
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 21, 2:57 PM EST | Hail 0.75 | Anderson Creek, NC | |
| Mar 21, 3:15 PM EST | Hail 0.75 | Apex, 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 |
|---|---|---|---|
| Mar 21, 1:30 PM EST | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 7.9 hours before the alert went out and 117 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 586 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 149 m²/s²
- 0-3 km storm-relative helicity
- 47 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
Special weather statement, Mar 21, 10:28 AM EST, 4 hours 26 minutes before
NCZ009>011-026>028-041>043-073>078-083>086-088-089-212315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RALEIGH NC 1028 AM EST SUN MAR 21 1999 ...RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON FOR SECTIONS OF CENTRAL NORTH CAROLINA... THERE IS THE POSSIBILITY OF SEVERE THUNDERSTORM THIS AFTERNOON ACROSS CENTRAL NORTH CAROLINA MAINLY SOUTH AND EAST OF A LINE FROM ALBEMARLE IN STANLY COUNTY TO SANFORD IN LEE COUNTY TO RALEIGH TO WARRENTON IN WARREN COUNTY. THE GREATEST THREAT FOR SEVERE WEATHER IN THIS AREA WILL BE NEAR THE CITIES FAYETTEVILLE...SOUTHERN PINES...LAURINBURG...CLINTON AND GOLDSBORO. THE MAIN SEVERE WEATHER THREAT WILL BE LARGE HAIL HOWEVER THE WIND STRUCTURE IS ORIENTATED IN SUCH A MANNER THAT THE POTENTIAL FOR A FEW TORNADOES ALSO EXISTS. IT APPEARS THAT THE GREATEST THREAT FOR SEVERE WEATHER WILL BE THIS AFTERNOON...MAINLY BETWEEN 1 PM AND 6 PM. SPOTTER ACTIVATION WILL BE NEEDED THIS AFTERNOON IN THE FAYETTEVILLE AREA. STAY TUNED TO NOAA WEATHER RADIO OR OTHER RELIABLE SOURCES OF WEATHER INFORMATION FOR ADDITIONAL STATEMENTS OR POSSIBLE WATCHES AND WARNINGS. WSS/MLM
Special weather statement, Mar 21, 11:14 AM EST, 3 hours 40 minutes before
NCZ009>011-026>028-041>043-073>078-083>086-088-089-212315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RALEIGH NC 1028 AM EST SUN MAR 21 1999 ...RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON FOR SECTIONS OF CENTRAL NORTH CAROLINA... THERE IS THE POSSIBILITY OF SEVERE THUNDERSTORM THIS AFTERNOON ACROSS CENTRAL NORTH CAROLINA MAINLY SOUTH AND EAST OF A LINE FROM ALBEMARLE IN STANLY COUNTY TO SANFORD IN LEE COUNTY TO RALEIGH TO WARRENTON IN WARREN COUNTY. THE GREATEST THREAT FOR SEVERE WEATHER IN THIS AREA WILL BE NEAR THE CITIES FAYETTEVILLE...SOUTHERN PINES...LAURINBURG...CLINTON AND GOLDSBORO. THE MAIN SEVERE WEATHER THREAT WILL BE LARGE HAIL HOWEVER THE WIND STRUCTURE IS ORIENTATED IN SUCH A MANNER THAT THE POTENTIAL FOR A FEW TORNADOES ALSO EXISTS. IT APPEARS THAT THE GREATEST THREAT FOR SEVERE WEATHER WILL BE THIS AFTERNOON...MAINLY BETWEEN 1 PM AND 6 PM. SPOTTER ACTIVATION WILL BE NEEDED THIS AFTERNOON IN THE FAYETnTEVILLE AREA. STAY TUNED TO NOAA WEATHER RADIO OR OTHER RELIABLE SOURCES OF WEATHER INFORMATION FOR ADDITIONAL STATEMENTS OR POSSIBLE WATCHES AND WARNINGS. WSS/MLM
The office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 21, 2:34 PM EST | Severe Thunderstorm Warning | RAH | Cumberland | 36 min |
| Mar 21, 2:38 PM EST | Severe Thunderstorm Warning | RAH | Alamance, Guilford, Randolph | 47 min |
| Mar 21, 3:18 PM EST | Severe Thunderstorm Warning | RAH | Cumberland | 32 min |
| Mar 21, 3:38 PM EST | Severe Thunderstorm Warning | RAH | Granville | 32 min |
| Mar 21, 3:44 PM EST | Severe Thunderstorm Warning | RAH | Harnett, Johnston, Wake | 61 min |
| Mar 21, 3:44 PM EST | Severe Thunderstorm Warning | RAH | Sampson | 61 min |
| Mar 21, 4:29 PM EST | Severe Thunderstorm Warning | RAH | Nash, Wilson | 61 min |
| Mar 21, 4:41 PM EST | Severe Thunderstorm Warning | RAH | Franklin | 49 min |
| Mar 21, 4:56 PM EST | Severe Thunderstorm Warning | RAH | Wayne | 34 min |
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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.