Alert archive / Tennessee / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 68, NWS Morristown, TN

June 8, 20157 counties in Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at Jun 8, 2015, 6:28 PM CDT for 7 counties in Tennessee. It was in force for 62 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 8, 2015, 6:28 PM CDT (23:28 UTC)
Expired
Jun 8, 2015, 7:30 PM CDT
In force
62 min
Issued by
NWS Morristown, TN
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Bledsoe County, TN, Bradley County, TN, Hamilton County, TN, McMinn County, TN, Meigs County, TN, Rhea County, TN, Sequatchie County, TN

The radar

The Northeast Alabama radar (KHTX), 112 km from the middle of the area, began a volume at 23:28 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 8, 1:40 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 11.5 hours before the alert went out and 165 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, Nashville Metro, TN at 12:00Z on 2015-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 126 joules per kilogram.LCLLFCEL10008507005003002001001 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, Nashville Metro, TN at 12:00Z on 2015-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 152 square meters per square second.193958Sfc1 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
126 J/kg
Mixed-layer CIN
-103 J/kg
Mixed-layer LCL
1445 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
152 m²/s²
0-3 km storm-relative helicity
145 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 8, 5:30 PM CDT, 58 minutes earlier.

Area forecast discussion, Jun 8, 5:30 PM CDT, 58 minutes before
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Hazardous weather outlook, Jun 8, 2:58 PM CDT, 3 hours 30 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MORRISTOWN TN
358 PM EDT MON JUN 8 2015

NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-
005-006-008-092000-
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-NW 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-RUSSELL-WASHINGTON-
358 PM EDT MON JUN 8 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST NORTH
CAROLINA...EAST TENNESSEE AND SOUTHWEST VIRGINIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT...
SEVERE THUNDERSTORMS ARE POSSIBLE FOR THE REMAINDER OF THE
AFTERNOON AND INTO TONIGHT. SEVERE STORMS WILL MAINLY BE ISOLATED
THIS AFTERNOON...BUT BETTER CHANCES OF SEVERE STORMS EXIST THIS
EVENING AND TONIGHT AS AN UPPER LEVEL DISTURBANCE AND COLD FRONT
APPROACH THE REGION. THE MAIN THREAT FROM THE STORMS WILL BE
DAMAGING WINDS...WITH LARGE HAIL POSSIBLE FROM SOME OF THE STRONGER
STORMS. ISOLATED FLOODING IS POSSIBLE IN SOME AREAS...BUT STORMS
WILL BE MOVING QUICKLY...THEREBY REDUCING THE CHANCES OF FLOODING.
ALTHOUGH THE CHANCES OF TORNADOES IS VERY LOW FOR THIS
EVENT...LOCALIZED CONDITIONS COULD PRODUCE A BRIEF TORNADO.

IN GENERAL...CONDITIONS FOR STRONGER STORMS ARE MORE FAVORABLE IN
THE WESTERN AND NORTHWESTERN AREAS...ON THE PLATEAU...WITH AREAS IN
THE EASTERN COUNTIES...ALONG THE NORTH CAROLINA STATE LINE...NOT
QUITE AS FAVORABLE...BUT THESE AREAS COULD STILL GET SEVERE STORMS.

MOST OF THE STORMS WILL MOVE EAST OF THE AREA BY ABOUT 2AM TUESDAY
MORNING...WITH ONLY SHOWERS AND ISOLATED THUNDERSTORMS THEREAFTER.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NECESSARY THIS AFTERNOON AND INTO TONIGHT.

In the hours before

Local storm report, Jun 8, 5:19 PM CDT, 1 hour 9 minutes before
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Local storm report, Jun 8, 5:28 PM CDT, 1 hour before
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Local storm report, Jun 8, 5:42 PM CDT, 46 minutes before
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Special weather statement, Jun 8, 5:47 PM CDT, 41 minutes before
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Local storm report, Jun 8, 5:50 PM CDT, 38 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
650 PM EDT MON JUN 08 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0620 PM     TSTM WND DMG     4 ESE BLOUNTVILLE       36.51N 82.26W
06/08/2015                   SULLIVAN           TN   AMATEUR RADIO

            COUPLE TREES AND A FEW LIMBS DOWN NEAR VOLUNTEER PARKWAY
            A MILE SOUTH OF THE BRISTOL MOTOR SPEEDWAY.

&&
Local storm report, Jun 8, 6:04 PM CDT, 24 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
704 PM EDT MON JUN 08 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0555 PM     TSTM WND DMG     5 W RICHLANDS           37.10N 81.89W
06/08/2015                   RUSSELL            VA   911 CALL CENTER

            SEVERAL TREES DOWN IN THE NORTHERN END OF THE COUNTY AND
            A TREE DOWN ON HOUSE ON FRANKS HOLLOW ROAD IN THE SWORDS
            CREEK AREA.

&&

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 8, 12:23 PM CDTSpecial Weather StatementMRXMcMinn52 min
Jun 8, 12:33 PM CDTSpecial Weather StatementMRXPolk57 min
Jun 8, 12:35 PM CDTSpecial Weather StatementMRXSullivan55 min
Jun 8, 2:03 PM CDTSpecial Weather StatementMRXScott42 min
Jun 8, 2:15 PM CDTSpecial Weather StatementMRXAnderson45 min
Jun 8, 2:17 PM CDTSpecial Weather StatementMRXMarion, Sequatchie43 min
Jun 8, 2:29 PM CDTSpecial Weather StatementMRXAnderson, Roane61 min
Jun 8, 2:35 PM CDTSpecial Weather StatementMRXMorgan40 min
Jun 8, 2:37 PM CDTSpecial Weather StatementMRXRhea38 min
Jun 8, 2:40 PM CDTSevere Thunderstorm WarningMRXCampbell, Claiborne, Scott, Union50 min
Jun 8, 3:04 PM CDTSpecial Weather StatementMRXRoane41 min
Jun 8, 3:08 PM CDTSpecial Weather StatementMRXSequatchie52 min
Jun 8, 3:10 PM CDTSevere Thunderstorm WarningMRXLoudon, McMinn, Meigs, Rhea, Roane50 min
Jun 8, 3:14 PM CDTSevere Thunderstorm WarningMRXAnderson, Campbell, Knox, Union46 min
Jun 8, 3:38 PM CDTSpecial Weather StatementMRXBradley, McMinn52 min
Jun 8, 3:41 PM CDTSpecial Weather StatementMRXBradley, Hamilton49 min
Jun 8, 3:55 PM CDTSpecial Weather StatementMRXGrainger, Knox, Union50 min
Jun 8, 3:57 PM CDTSevere Thunderstorm WarningMRXBradley, Hamilton, Meigs48 min
Jun 8, 4:01 PM CDTSevere Thunderstorm WarningMRXAnderson, Knox, Loudon, Roane, Union59 min
Jun 8, 4:05 PM CDTSevere Thunderstorm WarningMRXBlount, Knox, Loudon, Sevier40 min
Jun 8, 4:10 PM CDTSevere Thunderstorm WarningMRXBradley, Loudon, McMinn, Monroe50 min
Jun 8, 4:15 PM CDTSpecial Weather StatementMRXGreene, Hawkins45 min
Jun 8, 4:20 PM CDTSevere Thunderstorm WarningMRXClaiborne, Grainger, Hamblen, Jefferson, Knox, Union40 min
Jun 8, 4:25 PM CDTSevere Thunderstorm WarningMRXGreene, Hawkins, Sullivan, Washington50 min
Jun 8, 4:44 PM CDTSpecial Weather StatementMRXBlount, Loudon46 min
Jun 8, 4:47 PM CDTSpecial Weather StatementMRXHamblen, Jefferson58 min
Jun 8, 4:49 PM CDTSevere Thunderstorm WarningMRXBlount, Cocke, Hamblen, Jefferson, Knox, Sevier56 min
Jun 8, 5:02 PM CDTSevere Thunderstorm WarningMRXCarter, Johnson, Sullivan58 min
Jun 8, 5:14 PM CDTSevere Thunderstorm WarningMRXBradley, Hamilton, Marion, Sequatchie61 min
Jun 8, 5:39 PM CDTAreal Flood AdvisoryMRXBlount, Jefferson, Knox2 hr
Jun 8, 5:44 PM CDTSevere Thunderstorm WarningMRXJohnson31 min
Jun 8, 5:47 PM CDTSpecial Weather StatementMRXCampbell, Morgan, Scott58 min
Jun 8, 5:55 PM CDTSevere Thunderstorm WarningMRXBradley, Hamilton, McMinn, Monroe, Polk65 min
Jun 8, 6:40 PM CDTSpecial Weather StatementMRXAnderson, Campbell, Grainger, Knox, Roane, Union50 min
Jun 8, 6:58 PM CDTSevere Thunderstorm WarningMRXMonroe, Polk62 min
Jun 8, 12:38 PM CDTSpecial Weather StatementMRXWashington67 min
Jun 8, 3:31 PM CDTSpecial Weather StatementMRXLee, Wise, City of Norton44 min
Jun 8, 4:11 PM CDTSpecial Weather StatementMRXRussell, Scott, Wise, City of Norton49 min
Jun 8, 4:45 PM CDTSevere Thunderstorm WarningMRXRussell, Scott, Washington, City of Bristol60 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2015Every severe thunderstorm warning in 2015

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.