Alert archive / North Carolina / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 38, NWS Raleigh, NC
NWS Raleigh, NC issued this severe thunderstorm warning at Apr 15, 1999, 7:10 PM EDT for Halifax County, North Carolina. It was in force for 30 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
- Apr 15, 1999, 7:10 PM EDT (23:10 UTC)
- Expired
- Apr 15, 1999, 7:40 PM EDT
- In force
- 30 min
- Issued by
- NWS Raleigh, NC
- Area
- Whole counties
County Halifax County, NC
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 15, 7:20 PM EDT | Hail 0.75 | Enfield, 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 |
|---|---|---|---|
| Apr 15, 6:15 PM EDT | Tornado Watch | SPC | 4 hr |
The nearest sounding before it
Newport, NC (KMHX), launched 12:00Z, 11.2 hours before the alert went out and 179 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
- 2678 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 167 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
Local storm report, Apr 15, 5:45 PM EDT, 1 hour 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
445 PM EST THU APR 15 1999
TIME(EST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0541 PM HENDERSON NC .75 INCH HAIL
04/15/99 VANCE VANCE COUNTY 911 OPERATOR
REPORTED DIME SIZE HAIL
SOUTHWEST OF HENDERSONLocal storm report, Apr 15, 6:55 PM EDT, 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH NC
555 PM EST THU APR 15 1999
TIME(EST) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0615 PM ARCOLA NC .75 INCH HAIL
04/15/99 WARREN WARREN COUNTY 911 OPERATOR
REPORTED DIME SIZE HAIL IN
ARCOLA.
0639 PM HALIFAX NC .75 INCH HAIL
04/15/99 HALIFAX SKYWARN OBSERVER REPORTED
DIME SIZE HAIL IN HALIFAX
TOWNSHIP.
0640 PM HEATHSVILLE NC .75 INCH HAIL
04/15/99 HALIFAX LAW ENFORCEMENT OFFICERS
REPORTED DIME SIZE HAIL
COVERING THE GROUNG IN
HEATHSVILLEThe office that day
Everything else NWS Raleigh, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 5:35 PM EDT | Severe Thunderstorm Warning | RAH | Granville, Vance | 35 min |
| Apr 15, 5:51 PM EDT | Severe Thunderstorm Warning | RAH | Durham | 49 min |
| Apr 15, 5:55 PM EDT | Severe Thunderstorm Warning | RAH | Warren | 50 min |
| Apr 15, 6:03 PM EDT | Tornado Warning | RAH | Warren | 52 min |
| Apr 15, 6:17 PM EDT | Tornado Warning | RAH | Halifax | 48 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.