Alert archive / North Carolina / Tornado Watches in 1998

Tornado Watch 46

February 17, 199834 counties in North Carolina; 8 counties in South Carolina; City of Danville, Virginia

The Storm Prediction Center issued this tornado watch at Feb 17, 1998, 12:45 PM EST for 34 counties in North Carolina; 8 counties in South Carolina; City of Danville, Virginia. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Feb 17, 1998, 12:45 PM EST (17:45 UTC)
Expired
Feb 17, 1998, 6:00 PM EST
In force
5 hr
Issued by
the Storm Prediction Center
All 43 counties

Alamance County, NC, Alleghany County, NC, Anson County, NC, Cabarrus County, NC, Caswell County, NC, Chatham County, NC, Columbus County, NC, Cumberland County, NC, Davidson County, NC, Davie County, NC, Durham County, NC, Forsyth County, NC, Guilford County, NC, Harnett County, NC, Hoke County, NC, Iredell County, NC, Lee County, NC, Mecklenburg County, NC, Montgomery County, NC, Moore County, NC, Orange County, NC, Person County, NC, Randolph County, NC, Richmond County, NC, Robeson County, NC, Rockingham County, NC, Rowan County, NC, Scotland County, NC, Stanly County, NC, Stokes County, NC, Surry County, NC, Union County, NC, Wilkes County, NC, Yadkin County, NC, Chesterfield County, SC, Darlington County, SC, Dillon County, SC, Kershaw County, SC, Lancaster County, SC, Lee County, SC, Marion County, SC, Marlboro County, SC, City of Danville, VA

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 5.8 hours before the alert went out and 58 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.

Skew-T log-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 12:00Z on 1998-02-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 12:00Z on 1998-02-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
593 m above ground
0-6 km bulk shear
88 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
456 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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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.

IssuedProductOfficeCountiesLasted
Feb 17, 9:30 AM ESTSevere Thunderstorm WatchSPCAlexander, Ashe, Avery, Buncombe, Burke, Caldwell and 16 more6 hr
Feb 17, 1:00 PM ESTSevere Thunderstorm WatchSPCBland5 hr

Nearby

Tornado Watches in North Carolina, 1998Tornado Watches in South Carolina, 1998Tornado Watches in Virginia, 1998Every tornado 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.