Alert archive / North Carolina / Severe Thunderstorm Watches in 1998
Severe Thunderstorm Watch 421
The Storm Prediction Center issued this severe thunderstorm watch at May 25, 1998, 4:00 PM EDT for 5 states. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- May 25, 1998, 4:00 PM EDT (20:00 UTC)
- Expired
- May 25, 1998, 10:00 PM EDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 86 counties
Bell County, KY, Alamance County, NC, Alexander County, NC, Alleghany County, NC, Anson County, NC, Ashe County, NC, Avery County, NC, Buncombe County, NC, Burke County, NC, Cabarrus County, NC, Caldwell County, NC, Caswell County, NC, Catawba County, NC, Chatham County, NC, Cherokee County, NC, Clay County, NC, Cleveland County, NC, Cumberland County, NC, Davidson County, NC, Davie County, NC, Durham County, NC, Forsyth County, NC, Gaston County, NC, Graham County, NC, Granville County, NC, Guilford County, NC, Harnett County, NC, Haywood County, NC, Henderson County, NC, Hoke County, NC, Iredell County, NC, Jackson County, NC, Lee County, NC, Lincoln County, NC, Macon County, NC, Madison County, NC, McDowell County, NC, Mecklenburg County, NC, Mitchell County, NC, Montgomery County, NC, Moore County, NC, Orange County, NC, Person County, NC, Polk County, NC, Randolph County, NC, Richmond County, NC, Rockingham County, NC, Rowan County, NC, Rutherford County, NC, Stanly County, NC, Stokes County, NC, Surry County, NC, Swain County, NC, Transylvania County, NC, Union County, NC, Watauga County, NC, Wilkes County, NC, Yadkin County, NC, Yancey County, NC, Cherokee County, SC, York County, SC, Blount County, TN, Carter County, TN, Claiborne County, TN, Cocke County, TN, Grainger County, TN, Greene County, TN, Hamblen County, TN, Hancock County, TN, Hawkins County, TN, Jefferson County, TN, Johnson County, TN, Knox County, TN, Sevier County, TN, Sullivan County, TN, Unicoi County, TN, Union County, TN, Washington County, TN, City of Bristol, VA, City of Danville, VA, City of Galax, VA, Grayson County, VA, Henry County, VA, Lee County, VA, Patrick County, VA, Scott County, VA
The radar
The Greer radar (KGSP), 128 km from the middle of the area, began a volume at 20:03 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.
Warnings issued inside it
7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 25, 4:14 PM EDT | Severe Thunderstorm Warning | RNK | Rockingham | 46 min |
| May 25, 5:02 PM EDT | Severe Thunderstorm Warning | RNK | Caswell | 48 min |
| May 25, 5:35 PM EDT | Severe Thunderstorm Warning | RAH | Person | 35 min |
| May 25, 5:42 PM EDT | Severe Thunderstorm Warning | RAH | Granville | 48 min |
| May 25, 5:52 PM EDT | Severe Thunderstorm Warning | RAH | Chatham | 48 min |
| May 25, 9:31 PM EDT | Severe Thunderstorm Warning | JKL | Bell | 49 min |
| May 25, 9:47 PM EDT | Flash Flood Warning | JKL | Bell | 88 min |
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 8.0 hours before the alert went out and 180 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
- 474 J/kg
- Mixed-layer CIN
- -256 J/kg
- Mixed-layer LCL
- 1089 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 66 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
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 |
|---|---|---|---|---|
| May 25, 4:15 AM EDT | Severe Thunderstorm Watch | SPC | Ballard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 14 more | 6 hr |
| May 25, 8:45 AM EDT | Severe Thunderstorm Watch | SPC | Adair, Allen, Anderson, Barren, Boyle, Breckinridge and 37 more | 5 hr |
| May 25, 12:30 PM EDT | Severe Thunderstorm Watch | SPC | Bell, Breathitt, Clay, Floyd, Harlan, Jackson and 10 more | 5 hr |
| May 25, 4:00 PM EDT | Severe Thunderstorm Watch | SPC | Allen, Barren, Calloway, Christian, Clinton, Cumberland and 15 more | 6 hr |
| May 25, 6:00 PM EDT | Severe Thunderstorm Watch | SPC | Beaufort, Bertie, Camden, Carteret, Chowan, Craven and 30 more | 6 hr |
| May 24, 8:30 PM EDT | Severe Thunderstorm Watch | SPC | Albemarle, Alleghany, Amherst, Appomattox, Arlington, Augusta and 49 more | 6 hr |
Nearby
Severe Thunderstorm Watches in North Carolina, 1998Severe Thunderstorm Watches in Tennessee, 1998Severe Thunderstorm Watches in Virginia, 1998Every severe thunderstorm watch 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.