Alert archive / North Carolina / Tornado Watches in 1999
Tornado Watch 160
The Storm Prediction Center issued this tornado watch at Apr 15, 1999, 6:15 PM EDT for 36 counties in North Carolina; 23 counties in Virginia. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 15, 1999, 6:15 PM EDT (22:15 UTC)
- Expired
- Apr 15, 1999, 10:00 PM EDT
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
All 59 counties
Beaufort County, NC, Bertie County, NC, Camden County, NC, Carteret County, NC, Chowan County, NC, Craven County, NC, Currituck County, NC, Dare County, NC, Duplin County, NC, Durham County, NC, Edgecombe County, NC, Franklin County, NC, Gates County, NC, Granville County, NC, Greene County, NC, Halifax County, NC, Hertford County, NC, Hyde County, NC, Johnston County, NC, Jones County, NC, Lenoir County, NC, Martin County, NC, Nash County, NC, Northampton County, NC, Onslow County, NC, Pamlico County, NC, Pasquotank County, NC, Perquimans County, NC, Pitt County, NC, Tyrrell County, NC, Vance County, NC, Wake County, NC, Warren County, NC, Washington County, NC, Wayne County, NC, Wilson County, NC, Brunswick County, VA, Charles City County, VA, City of Chesapeake, VA, City of Emporia, VA, City of Franklin, VA, City of Hampton, VA, City of Newport News, VA, City of Norfolk, VA, City of Poquoson, VA, City of Portsmouth, VA, City of Suffolk, VA, City of Virginia Beach, VA, City of Williamsburg, VA, Gloucester County, VA, Greensville County, VA, Isle of Wight County, VA, James City County, VA, Middlesex County, VA, Prince George County, VA, Southampton County, VA, Surry County, VA, Sussex County, VA, York County, VA
Warnings issued inside it
8 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 6:17 PM EDT | Tornado Warning | RAH | Halifax | 48 min |
| Apr 15, 6:49 PM EDT | Tornado Warning | AKQ | Northampton | 16 min |
| Apr 15, 7:10 PM EDT | Severe Thunderstorm Warning | RAH | Halifax | 30 min |
| Apr 15, 9:07 PM EDT | Severe Thunderstorm Warning | MHX | Hyde | 38 min |
| Apr 15, 9:26 PM EDT | Severe Thunderstorm Warning | MHX | Duplin | 49 min |
| Apr 15, 9:33 PM EDT | Severe Thunderstorm Warning | MHX | Dare | 42 min |
| Apr 15, 9:53 PM EDT | Tornado Warning | MHX | Duplin | 37 min |
| Apr 15, 9:59 PM EDT | Tornado Warning | MHX | Jones, Lenoir | 46 min |
The nearest sounding before it
Newport, NC (KMHX), launched 12:00Z, 10.3 hours before the alert went out and 146 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.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 4:15 PM EDT | Tornado Watch | SPC | Anson, Bladen, Brunswick, Columbus, Cumberland, Duplin and 12 more | 6 hr |
Nearby
Tornado Watches in North Carolina, 1999Tornado Watches in Virginia, 1999Every tornado watch 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.