Alert archive / North Carolina / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 84, NWS Morristown, TN

May 16, 2023Cherokee County, Clay County, North Carolina

NWS Morristown, TN issued this severe thunderstorm warning at May 16, 2023, 7:55 PM EDT for Cherokee County, Clay County, North Carolina. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 16, 2023, 7:55 PM EDT (23:55 UTC)
Expired: May 16, 2023, 8:45 PM EDT
In force: 50 min
Issued by: NWS Morristown, TN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Cherokee County, NC, Clay County, NC

The radar

The Knoxville radar (KMRX), 128 km from the middle of the area, began a volume at 23:58 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.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.9 hours before the alert went out and 199 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: 469 J/kg
Mixed-layer CIN: -46 J/kg
Mixed-layer LCL: 651 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 91 m²/s²
0-3 km storm-relative helicity: 105 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 16, 7:52 PM EDT, 3 minutes earlier.

Area forecast discussion, May 16, 7:52 PM EDT, 3 minutes before

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Hazardous weather outlook, May 16, 3:37 PM EDT, 4 hours 18 minutes before

Hazardous Weather Outlook
National Weather Service Morristown TN
337 PM EDT Tue May 16 2023

NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-
005-006-008-171945-
Cherokee-Clay-Scott TN-Campbell-Claiborne-Hancock-Hawkins-
Sullivan-Johnson-Morgan-Anderson-Union-Grainger-Hamblen-
Northwest Cocke-Cocke Smoky Mountains-Northwest Greene-
Southeast Greene-Washington TN-Unicoi-Northwest Carter-
Southeast Carter-Roane-Loudon-Knox-Jefferson-Northwest Blount-
Blount Smoky Mountains-North Sevier-Sevier Smoky Mountains-
Sequatchie-Bledsoe-Rhea-Meigs-McMinn-Northwest Monroe-
Southeast Monroe-Marion-Hamilton-Bradley-West Polk-East Polk-Lee-
Wise-Scott VA-Russell-Washington VA-
337 PM EDT Tue May 16 2023 /237 PM CDT Tue May 16 2023/

This Hazardous Weather Outlook is for portions of southwest North
Carolina...east Tennessee and southwest Virginia.

.DAY ONE...This Afternoon and Tonight

Showers and thunderstorms will continue late this afternoon and
evening ahead of an upper-level disturbance and cold front. Some
thunderstorms may become severe with the primary risk being damaging
winds and localized hail. There is a low risk of tornadoes, mainly
across far northern East Tennessee and southwest Virginia.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotters are encourage to report severe weather and flooding
this afternoon and evening.

TD

In the hours before

Special weather statement, May 16, 7:32 PM EDT, 23 minutes before

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Special weather statement, May 16, 7:32 PM EDT, 23 minutes before

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Special weather statement, May 16, 7:43 PM EDT, 12 minutes before

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Special weather statement, May 16, 7:45 PM EDT, 10 minutes before

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Local storm report, May 16, 7:46 PM EDT, 9 minutes before

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Local storm report, May 16, 7:49 PM EDT, 6 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 15, 8:31 PM EDT	Special Weather Statement	MRX	Hawkins	44 min
May 16, 3:26 PM EDT	Special Weather Statement	MRX	Grainger, Union	34 min
May 16, 3:35 PM EDT	Special Weather Statement	MRX	Knox	25 min
May 16, 3:48 PM EDT	Severe Thunderstorm Warning	MRX	Grainger, Hamblen, Jefferson, Union	42 min
May 16, 3:54 PM EDT	Severe Thunderstorm Warning	MRX	Grainger, Jefferson, Knox	35 min
May 16, 4:05 PM EDT	Severe Thunderstorm Warning	MRX	Anderson, Knox, Morgan, Roane, Union	40 min
May 16, 4:40 PM EDT	Severe Thunderstorm Warning	MRX	Anderson, Knox	37 min
May 16, 4:46 PM EDT	Special Weather Statement	MRX	Scott	29 min
May 16, 5:16 PM EDT	Special Weather Statement	MRX	Campbell	29 min
May 16, 5:18 PM EDT	Special Weather Statement	MRX	Monroe	27 min
May 16, 5:31 PM EDT	Special Weather Statement	MRX	Sevier	44 min
May 16, 5:32 PM EDT	Severe Thunderstorm Warning	MRX	Campbell, Claiborne, Grainger, Union	28 min
May 16, 5:39 PM EDT	Severe Thunderstorm Warning	MRX	Cocke, Jefferson, Sevier	51 min
May 16, 5:47 PM EDT	Special Weather Statement	MRX	Monroe	43 min
May 16, 5:50 PM EDT	Special Weather Statement	MRX	Hawkins	25 min
May 16, 5:56 PM EDT	Severe Thunderstorm Warning	MRX	Grainger, Hamblen, Jefferson, Union	49 min
May 16, 6:03 PM EDT	Severe Thunderstorm Warning	MRX	Johnson, Sullivan	57 min
May 16, 6:30 PM EDT	Severe Thunderstorm Warning	MRX	Anderson, Blount, Knox, Roane	45 min
May 16, 6:31 PM EDT	Severe Thunderstorm Warning	MRX	Cocke, Greene, Hamblen, Jefferson	16 min
May 16, 6:33 PM EDT	Special Weather Statement	MRX	Carter, Johnson	57 min
May 16, 6:42 PM EDT	Severe Thunderstorm Warning	MRX	Bradley, McMinn, Monroe, Polk	48 min
May 16, 6:43 PM EDT	Special Weather Statement	MRX	Loudon	47 min
May 16, 7:06 PM EDT	Severe Thunderstorm Warning	MRX	Carter, Greene, Unicoi, Washington	24 min
May 16, 7:15 PM EDT	Severe Thunderstorm Warning	MRX	Blount, Jefferson, Knox, Sevier	45 min
May 16, 7:20 PM EDT	Flash Flood Warning	MRX	Anderson, Knox	3 hr
May 16, 7:27 PM EDT	Severe Thunderstorm Warning	MRX	Carter, Unicoi, Washington	48 min
May 16, 7:32 PM EDT	Special Weather Statement	MRX	Polk	43 min
May 16, 7:43 PM EDT	Special Weather Statement	MRX	Cocke	32 min
May 16, 7:45 PM EDT	Special Weather Statement	MRX	Cocke	30 min
May 16, 3:10 PM EDT	Special Weather Statement	MRX	Russell	20 min
May 16, 3:20 PM EDT	Severe Thunderstorm Warning	MRX	Wise, City of Norton	25 min
May 16, 4:56 PM EDT	Special Weather Statement	MRX	Lee, Wise, City of Norton	49 min
May 16, 5:06 PM EDT	Severe Thunderstorm Warning	MRX	Wise	24 min
May 16, 5:09 PM EDT	Severe Thunderstorm Warning	MRX	Lee, Scott, Wise	36 min
May 16, 5:17 PM EDT	Tornado Warning	MRX	Lee, Scott, Wise	26 min
May 16, 5:34 PM EDT	Severe Thunderstorm Warning	MRX	Russell, Washington	41 min
May 16, 5:42 PM EDT	Severe Thunderstorm Warning	MRX	Russell, Scott, Washington, City of Bristol	33 min
May 16, 7:32 PM EDT	Special Weather Statement	MRX	Clay	43 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2023 Every severe thunderstorm warning in 2023

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.