Alert archive / Tennessee / Tornado Watches in 1998

Tornado Watch 193

April 8, 199812 counties in North Carolina; 58 counties in Tennessee; City of Bristol, Virginia

The Storm Prediction Center issued this tornado watch at Apr 8, 1998, 7:30 PM EDT for 12 counties in North Carolina; 58 counties in Tennessee; City of Bristol, Virginia. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued: Apr 8, 1998, 7:30 PM EDT (23:30 UTC)
Expired: Apr 9, 1998, 2:00 AM EDT
In force: 7 hr
Issued by: the Storm Prediction Center

All 71 counties

Buncombe County, NC, Cherokee County, NC, Clay County, NC, Graham County, NC, Haywood County, NC, Jackson County, NC, Macon County, NC, Madison County, NC, Mitchell County, NC, Swain County, NC, Transylvania County, NC, Yancey County, NC, Anderson County, TN, Bedford County, TN, Bledsoe County, TN, Blount County, TN, Bradley County, TN, Campbell County, TN, Cannon County, TN, Carter County, TN, Claiborne County, TN, Clay County, TN, Cocke County, TN, Coffee County, TN, Cumberland County, TN, DeKalb County, TN, Fentress County, TN, Franklin County, TN, Giles County, TN, Grainger County, TN, Greene County, TN, Grundy County, TN, Hamblen County, TN, Hamilton County, TN, Hancock County, TN, Hawkins County, TN, Jackson County, TN, Jefferson County, TN, Johnson County, TN, Knox County, TN, Lincoln County, TN, Loudon County, TN, Macon County, TN, Marion County, TN, Marshall County, TN, McMinn County, TN, Meigs County, TN, Monroe County, TN, Moore County, TN, Morgan County, TN, Overton County, TN, Pickett County, TN, Polk County, TN, Putnam County, TN, Rhea County, TN, Roane County, TN, Rutherford County, TN, Scott County, TN, Sequatchie County, TN, Sevier County, TN, Smith County, TN, Sullivan County, TN, Trousdale County, TN, Unicoi County, TN, Union County, TN, Van Buren County, TN, Warren County, TN, Washington County, TN, White County, TN, Wilson County, TN, City of Bristol, VA

Warnings issued inside it

36 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Apr 8, 7:45 PM EDT	Severe Thunderstorm Warning	OHX	Giles	45 min
Apr 8, 7:56 PM EDT	Severe Thunderstorm Warning	OHX	Marshall	64 min
Apr 8, 8:00 PM EDT	Tornado Warning	OHX	Giles	35 min
Apr 8, 8:08 PM EDT	Severe Thunderstorm Warning	OHX	Wilson	62 min
Apr 8, 8:16 PM EDT	Severe Thunderstorm Warning	OHX	Bedford	59 min
Apr 8, 8:20 PM EDT	Tornado Warning	OHX	Giles, Lincoln	60 min
Apr 8, 8:24 PM EDT	Severe Thunderstorm Warning	OHX	Rutherford, Williamson	46 min
Apr 8, 8:26 PM EDT	Tornado Warning	OHX	Bedford	49 min
Apr 8, 8:37 PM EDT	Severe Thunderstorm Warning	OHX	Coffee	68 min
Apr 8, 8:42 PM EDT	Tornado Warning	OHX	Moore	33 min
Apr 8, 8:43 PM EDT	Tornado Warning	OHX	Coffee	47 min
Apr 8, 8:46 PM EDT	Severe Thunderstorm Warning	OHX	Putnam	44 min
Apr 8, 8:55 PM EDT	Tornado Warning	OHX	Franklin	50 min
Apr 8, 9:08 PM EDT	Tornado Warning	OHX	Grundy, Warren	47 min
Apr 8, 9:13 PM EDT	Severe Thunderstorm Warning	OHX	Clay, Jackson, Overton	62 min
Apr 8, 9:32 PM EDT	Severe Thunderstorm Warning	OHX	Marshall	43 min
Apr 8, 9:36 PM EDT	Severe Thunderstorm Warning	MRX	Fentress	69 min
Apr 8, 9:36 PM EDT	Tornado Warning	OHX	Sequatchie, Van Buren	39 min
Apr 8, 9:42 PM EDT	Severe Thunderstorm Warning	OHX	White	48 min
Apr 8, 9:49 PM EDT	Severe Thunderstorm Warning	OHX	Bledsoe	56 min
Apr 8, 9:56 PM EDT	Tornado Warning	MRX	Hamilton, Meigs, Rhea	64 min
Apr 8, 10:02 PM EDT	Severe Thunderstorm Warning	MRX	Knox	43 min
Apr 8, 10:03 PM EDT	Severe Thunderstorm Warning	OHX	Rutherford	57 min
Apr 8, 10:10 PM EDT	Severe Thunderstorm Warning	MRX	Loudon, Roane	65 min
Apr 8, 10:13 PM EDT	Severe Thunderstorm Warning	MRX	Grainger, Hamblen, Jefferson	62 min
Apr 8, 10:13 PM EDT	Severe Thunderstorm Warning	OHX	Cannon	47 min
Apr 8, 10:14 PM EDT	Tornado Warning	MRX	Cherokee	61 min
Apr 8, 10:15 PM EDT	Tornado Warning	MRX	Anderson	30 min
Apr 8, 10:18 PM EDT	Severe Thunderstorm Warning	MRX	McMinn, Monroe	57 min
Apr 8, 10:30 PM EDT	Tornado Warning	MRX	McMinn, Monroe	60 min
Apr 8, 10:32 PM EDT	Severe Thunderstorm Warning	OHX	DeKalb, Warren	58 min
Apr 8, 10:45 PM EDT	Tornado Warning	MRX	Blount, Loudon	45 min
Apr 8, 10:54 PM EDT	Severe Thunderstorm Warning	OHX	White	36 min
Apr 8, 11:42 PM EDT	Severe Thunderstorm Warning	MRX	Rhea	63 min
Apr 9, 12:12 AM EDT	Severe Thunderstorm Warning	MRX	Meigs	48 min
Apr 9, 12:23 AM EDT	Severe Thunderstorm Warning	MRX	Loudon, Roane	52 min

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 11.5 hours before the alert went out and 153 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 5 J/kg
Mixed-layer CIN: -164 J/kg
Mixed-layer LCL: 1652 m above ground
0-6 km bulk shear: 75 kt
0-1 km storm-relative helicity: 140 m²/s²
0-3 km storm-relative helicity: 180 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 8, 2:45 PM EDT	Tornado Watch	SPC	Cherokee, Clay, Graham, Haywood, Jackson, Macon and 3 more	6 hr
Apr 8, 7:00 PM EDT	Severe Thunderstorm Watch	SPC	Alamance, Bertie, Cabarrus, Caswell, Catawba, Chatham and 35 more	6 hr
Apr 8, 3:00 AM EDT	Tornado Watch	SPC	Bedford, Cannon, Cheatham, Clay, Coffee, Davidson and 31 more	6 hr
Apr 8, 6:00 AM EDT	Severe Thunderstorm Watch	SPC	Anderson, Campbell, Claiborne, Cumberland, Fentress, Grainger and 7 more	5 hr
Apr 8, 8:45 AM EDT	Tornado Watch	SPC	Chester, Fayette, Hardeman, Hardin, Haywood, McNairy and 2 more	6 hr
Apr 8, 12:00 PM EDT	Tornado Watch	SPC	Bedford, Bledsoe, Cannon, Cheatham, Coffee, Cumberland and 28 more	5 hr
Apr 8, 6:30 PM EDT	Tornado Watch	SPC	Benton, Carroll, Cheatham, Chester, Crockett, Davidson and 31 more	7 hr

Nearby

Tornado Watches in Tennessee, 1998 Tornado Watches in North Carolina, 1998 Tornado Watches in Virginia, 1998 Every 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.