Alert archive / Tennessee / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 88, NWS Morristown, TN

June 4, 2023Greene County, Washington County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at Jun 4, 2023, 7:52 PM EDT for Greene County, Washington County, Tennessee. It was in force for 38 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: Jun 4, 2023, 7:52 PM EDT (23:52 UTC)
Expired: Jun 4, 2023, 8:30 PM EDT
In force: 38 min
Issued by: NWS Morristown, TN
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

Counties Greene County, TN, Washington County, TN

The radar

The Knoxville radar (KMRX), 66 km from the middle of the area, began a volume at 23:55 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

Nashville Metro, TN (KBNA), launched 12:00Z, 11.9 hours before the alert went out and 353 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: 542 J/kg
Mixed-layer CIN: -117 J/kg
Mixed-layer LCL: 1728 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 33 m²/s²
0-3 km storm-relative helicity: 56 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 Jun 4, 7:15 PM EDT, 37 minutes earlier.

Area forecast discussion, Jun 4, 7:15 PM EDT, 37 minutes before

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Hazardous weather outlook, Jun 4, 2:29 PM EDT, 5 hours 23 minutes before

Hazardous Weather Outlook
National Weather Service Morristown TN
229 PM EDT Sun Jun 4 2023

NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-
005-006-008-051830-
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-
229 PM EDT Sun Jun 4 2023 /129 PM CDT Sun Jun 4 2023/

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

.DAY ONE...This Afternoon and Tonight

Isolated to scattered showers and thunderstorms are expected
this afternoon and evening, with the best chances across the
southern TN Valley and southwest NC. Any stronger storm(s) could
produce damaging winds, downing trees and power lines, as well as
hail up to dime size. Brief heavy rain and frequent lightning are
also possible.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Isolated to scattered showers and thunderstorms are expected
across east Tennessee and southwest North Carolina Monday
afternoon. Some of these storms could be strong producing strong
and gusty winds.

Otherwise, the probability for widespread hazardous weather is
low.

.SPOTTER INFORMATION STATEMENT...

Coverage of the storms will be limited thus spotter activation
will likely not needed at this time.

In the hours before

Special weather statement, Jun 4, 6:31 PM EDT, 1 hour 21 minutes before

Special Weather Statement
National Weather Service Morristown TN
631 PM EDT Sun Jun 4 2023

TNZ083>085-042315-
Rhea TN-Meigs TN-McMinn TN-
631 PM EDT Sun Jun 4 2023

...A strong thunderstorm will impact portions of southeastern Rhea,
central Meigs and central McMinn Counties through 715 PM EDT...

At 631 PM EDT, Doppler radar was tracking a strong thunderstorm near
Decatur, moving west at 25 mph.

HAZARD...Wind gusts up to 50 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Athens, Decatur, Niota, Murray Store, Peakland and Clear Water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3559 8454 3539 8457 3543 8492 3570 8481
TIME...MOT...LOC 2231Z 108DEG 20KT 3554 8470

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH

CJM

Special weather statement, Jun 4, 6:40 PM EDT, 1 hour 12 minutes before

Special Weather Statement
National Weather Service Morristown TN
640 PM EDT Sun Jun 4 2023

TNZ099-100-042315-
Bradley TN-Hamilton TN-
640 PM EDT Sun Jun 4 2023

...A strong thunderstorm will impact portions of southwestern Bradley
and southeastern Hamilton Counties through 715 PM EDT...

At 640 PM EDT, Doppler radar was tracking a strong thunderstorm 7
miles northwest of Cohutta, or 7 miles northeast of Ringgold, moving
west at 25 mph.

HAZARD...Wind gusts up to 50 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Chattanooga, Harrison, Wildwood Lake, South Cleveland, Collegedale,
East Brainerd, Red Clay State Park, Flint Springs, Apison and
Ooltewah.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3499 8519 3515 8516 3507 8485 3499 8486
TIME...MOT...LOC 2240Z 108DEG 20KT 3502 8506

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH

CJM

Special weather statement, Jun 4, 6:53 PM EDT, 59 minutes before

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Special weather statement, Jun 4, 7:01 PM EDT, 51 minutes before

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Special weather statement, Jun 4, 7:17 PM EDT, 35 minutes before

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Local storm report, Jun 4, 7:29 PM EDT, 23 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
Jun 4, 1:43 PM EDT	Special Weather Statement	MRX	Blount	47 min
Jun 4, 3:40 PM EDT	Special Weather Statement	MRX	Marion	50 min
Jun 4, 4:09 PM EDT	Special Weather Statement	MRX	Polk	51 min
Jun 4, 4:45 PM EDT	Special Weather Statement	MRX	Marion	45 min
Jun 4, 4:48 PM EDT	Special Weather Statement	MRX	Monroe, Polk	42 min
Jun 4, 5:23 PM EDT	Special Weather Statement	MRX	McMinn	52 min
Jun 4, 5:27 PM EDT	Special Weather Statement	MRX	Claiborne	48 min
Jun 4, 6:04 PM EDT	Special Weather Statement	MRX	Bradley	41 min
Jun 4, 6:18 PM EDT	Special Weather Statement	MRX	Carter, Johnson	42 min
Jun 4, 6:23 PM EDT	Special Weather Statement	MRX	Loudon	52 min
Jun 4, 6:31 PM EDT	Special Weather Statement	MRX	McMinn, Meigs	44 min
Jun 4, 6:40 PM EDT	Special Weather Statement	MRX	Bradley	35 min
Jun 4, 6:46 PM EDT	Severe Thunderstorm Warning	MRX	Anderson, Knox, Loudon, Roane	44 min
Jun 4, 6:53 PM EDT	Special Weather Statement	MRX	Carter, Sullivan, Unicoi, Washington	52 min
Jun 4, 7:01 PM EDT	Special Weather Statement	MRX	Hamilton	44 min
Jun 4, 7:12 PM EDT	Severe Thunderstorm Warning	MRX	Carter, Greene, Hawkins, Sullivan, Unicoi, Washington	48 min
Jun 4, 7:17 PM EDT	Special Weather Statement	MRX	Hamilton, Sequatchie	43 min
Jun 4, 7:26 PM EDT	Areal Flood Advisory	MRX	Anderson, Knox, Loudon, Roane	2 hr
Jun 4, 3:52 PM EDT	Special Weather Statement	MRX	Lee	38 min
Jun 4, 4:13 PM EDT	Special Weather Statement	MRX	Lee	47 min
Jun 4, 1:07 PM EDT	Special Weather Statement	MRX	Cherokee	38 min
Jun 4, 2:11 PM EDT	Special Weather Statement	MRX	Clay	49 min
Jun 4, 2:37 PM EDT	Special Weather Statement	MRX	Cherokee	38 min
Jun 4, 2:53 PM EDT	Severe Thunderstorm Warning	MRX	Cherokee, Clay	52 min
Jun 4, 3:24 PM EDT	Special Weather Statement	MRX	Clay	51 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 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.