Alert archive / Tennessee / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 255, NWS Morristown, TN

May 26, 1998Sevier County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at May 26, 1998, 5:41 PM EDT for Sevier County, Tennessee. It was in force for 29 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: May 26, 1998, 5:41 PM EDT (21:41 UTC)
Expired: May 26, 1998, 6:10 PM EDT
In force: 29 min
Issued by: NWS Morristown, TN
Area: Whole counties

County Sevier County, TN

What was reported inside it

Time	Report	Where	Remark
May 26, 5:45 PM EDT	Hail 1.75	Seymour, TN

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
May 26, 5:00 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 9.7 hours before the alert went out and 279 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: 366 J/kg
Mixed-layer CIN: -127 J/kg
Mixed-layer LCL: 952 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 69 m²/s²
0-3 km storm-relative helicity: 110 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

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.

NWS Morristown, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at May 26, 2:10 PM EDT, 3 hours 31 minutes earlier.

Area forecast discussion, May 26, 2:10 PM EDT, 3 hours 31 minutes before

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In the hours before

Special weather statement, May 26, 11:58 AM EDT, 5 hours 43 minutes before

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Special weather statement, May 26, 11:58 AM EDT, 5 hours 43 minutes before

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Local storm report, May 26, 4:50 PM EDT, 51 minutes before

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Local storm report, May 26, 4:50 PM EDT, 51 minutes before

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The office that day

Everything else NWS Morristown, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 25, 10:01 PM EDT	Severe Thunderstorm Warning	MRX	Fentress	64 min
May 25, 10:15 PM EDT	Severe Thunderstorm Warning	MRX	Hancock, Hawkins	60 min
May 25, 10:50 PM EDT	Severe Thunderstorm Warning	MRX	Morgan	65 min
May 25, 10:58 PM EDT	Severe Thunderstorm Warning	MRX	Sullivan	62 min
May 25, 11:12 PM EDT	Severe Thunderstorm Warning	MRX	Anderson, Campbell, Scott	63 min
May 25, 11:18 PM EDT	Tornado Warning	MRX	Sullivan	62 min
May 25, 11:22 PM EDT	Severe Thunderstorm Warning	MRX	Claiborne, Grainger, Hancock	63 min
May 25, 11:22 PM EDT	Severe Thunderstorm Warning	MRX	Hawkins	63 min
May 25, 11:39 PM EDT	Severe Thunderstorm Warning	MRX	Knox, Union	61 min
May 25, 11:48 PM EDT	Severe Thunderstorm Warning	MRX	Carter, Johnson	62 min
May 25, 11:49 PM EDT	Severe Thunderstorm Warning	MRX	Cumberland	46 min
May 25, 11:53 PM EDT	Flash Flood Warning	MRX	Claiborne	3 hr
May 25, 11:53 PM EDT	Severe Thunderstorm Warning	MRX	Hamilton, Meigs, Rhea	62 min
May 26, 12:23 AM EDT	Flash Flood Warning	MRX	Hancock, Hawkins	3 hr
May 26, 12:32 AM EDT	Severe Thunderstorm Warning	MRX	Greene, Washington	48 min
May 26, 12:32 AM EDT	Severe Thunderstorm Warning	MRX	Sullivan	48 min
May 26, 12:33 AM EDT	Severe Thunderstorm Warning	MRX	Hawkins	37 min
May 26, 12:37 AM EDT	Severe Thunderstorm Warning	MRX	Hamblen	48 min
May 26, 1:01 AM EDT	Severe Thunderstorm Warning	MRX	Carter, Unicoi	49 min
May 26, 1:05 AM EDT	Flash Flood Warning	MRX	Sullivan	2 hr
May 26, 1:21 AM EDT	Severe Thunderstorm Warning	MRX	Monroe	49 min
May 26, 3:57 PM EDT	Severe Thunderstorm Warning	MRX	Roane	63 min
May 26, 4:14 PM EDT	Severe Thunderstorm Warning	MRX	Campbell	46 min
May 26, 4:24 PM EDT	Severe Thunderstorm Warning	MRX	Loudon	46 min
May 26, 4:30 PM EDT	Severe Thunderstorm Warning	MRX	Union	50 min
May 26, 4:36 PM EDT	Severe Thunderstorm Warning	MRX	Knox	64 min
May 26, 4:58 PM EDT	Severe Thunderstorm Warning	MRX	Blount	67 min
May 26, 5:11 PM EDT	Severe Thunderstorm Warning	MRX	Claiborne, Grainger	59 min
May 26, 5:34 PM EDT	Severe Thunderstorm Warning	MRX	Hancock	31 min
May 26, 6:01 PM EDT	Severe Thunderstorm Warning	MRX	Jefferson	49 min
May 26, 6:25 PM EDT	Severe Thunderstorm Warning	MRX	Cocke	65 min
May 25, 10:15 PM EDT	Severe Thunderstorm Warning	MRX	Lee	60 min
May 25, 11:08 PM EDT	Severe Thunderstorm Warning	MRX	Scott	62 min
May 25, 11:35 PM EDT	Severe Thunderstorm Warning	MRX	Washington	65 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 1998 Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.