Alert archive / Tennessee / Special Weather Statements in 2014

Special Weather Statement, NWS Morristown, TN

May 29, 2014Sequatchie County, Tennessee

NWS Morristown, TN issued this special weather statement at May 29, 2014, 5:21 PM CDT for Sequatchie County, Tennessee. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 29, 2014, 5:21 PM CDT (22:21 UTC)
Expired
May 29, 2014, 6:00 PM CDT
In force
39 min
Issued by
NWS Morristown, TN

County Sequatchie County, TN

The radar

The Northeast Alabama radar (KHTX), 90 km from the middle of the area, began a volume at 22:22 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, 10.4 hours before the alert went out and 155 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 2014-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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 2014-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -20 square meters per square second.1939Sfc1 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1128 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
-20 m²/s²
0-3 km storm-relative helicity
-26 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at May 29, 1:37 PM CDT, 3 hours 44 minutes earlier.

Area forecast discussion, May 29, 1:37 PM CDT, 3 hours 44 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MORRISTOWN TN
237 PM EDT THU MAY 29 2014

.SHORT TERM (TONIGHT THROUGH SATURDAY)...INSTABILITY SHOWERS
UNDERWAY AND WILL CONTINUE INTO THE EVENING HOURS. SLOW MOVING
STORMS WILL PRODUCE HOURLY RAINFALL RATES NEAR ONE INCH. SMALL HAIL
IS ALSO POSSIBLE. HIGH THICKNESS VALUES AND HUMIDITY CONTINUES ON
FRIDAY WITH SIMILAR CONVECTIVE COVERAGE. BACK DOOR FRONT MOVES INTO
THE AREA FROM THE NE LATE ON FRIDAY. INCREASED UPPER NW FLOW WILL
OCCUR ACROSS NE AREAS THROUGH SATURDAY. A DRIER AIRMASS WILL BUILD
IN BEHIND THE FRONT WILL WILL WORK S TO NEAR TYS ON SATURDAY.
SCATTERED CONVECTION REMAIN POSSIBLE ALONG AND SW OF FRONT ON
SATURDAY. LITTLE TEMPERATURE CONTRAST ACROSS FRONTAL BOUNDARY.

.LONG TERM...(SATURDAY NIGHT THROUGH THURSDAY)...THE WEAK FRONTAL
BOUNDARY MOVING INTO THE SOUTHERN TN VALLEY LOSES ITS IDENTITY BY
SUNDAY MORNING. CONFIDENCE IS LOW FOR SHOWERS AND THUNDERSTORMS
OVERNIGHT GENERALLY FOR SOUTHERN AREAS BUT THIS WOULD BE THE BEST
PLACE FOR ANY CONVECTION TO SPARK UP. AS PREVIOUS MODEL RUNS HAVE
OVERDONE PRECIPITATION...THE TREND CONTINUES. DIURNAL SCATTERED
CONVECTION IS POSSIBLE EACH AFTERNOON. BEST CHANCE OCCUR ON TUESDAY
WHEN THE RIDGE BREAKS DOWN OVER THE SE AND A SHORTWAVE TRANSLATES
ACROSS THE GREAT LAKES REGION. THIS SHOULD HELP SET UP A NORTHWEST
FLOW PATTERN BRINGING THUNDERSTORMS FROM CENTRAL KY INTO E TN DURING
THE DAY ON TUESDAY. BY WEDNESDAY THE WEAK RIDGE BUILDS EAST AND
CONFIDENCE IS LOW AGAIN WHEN IT COMES TO THE CONVECTION COVERAGE.
MODELS ARE VERY AGGRESSIVE WITH PRECIPITATION.

NO DOUBT THE TEMPERATURES WILL BE ON THE RISE EARLY NEXT WEEK. THE
HOTTEST DAYS SHOULD BE TUESDAY AND WEDNESDAY OF NEXT WEEK WITH
TEMPERATURES APPROACHING 90 DEGREES FOR SEVERAL LOCATIONS.

&&

.PRELIMINARY POINT TEMPS/POPS...
CHATTANOOGA AIRPORT, TN             66  86  66  88 /  40  50  20  30
KNOXVILLE MCGHEE TYSON AIRPORT, TN  64  85  65  86 /  50  50  20  10
OAK RIDGE, TN                       64  84  65  87 /  50  50  20  10
TRI CITIES AIRPORT, TN              60  84  59  84 /  50  40  10  10

&&

.MRX WATCHES/WARNINGS/ADVISORIES...
NC...NONE.
TN...NONE.
VA...NONE.
&&

SON/AC
Hazardous weather outlook, May 29, 3:33 AM CDT, 13 hours 48 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MORRISTOWN TN
433 AM EDT THU MAY 29 2014

NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-
005-006-008-300845-
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-
433 AM EDT THU MAY 29 2014

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

.DAY ONE...TODAY AND TONIGHT...

SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP TODAY AND
TONIGHT...WITH A FEW STORMS POSSIBLY BECOMING STRONG WITH GUSTY
WINDS...AND LOCALLY HEAVY RAINFALL.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

In the hours before

Special weather statement, May 29, 2:01 PM CDT, 3 hours 20 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
301 PM EDT THU MAY 29 2014

TNZ036-038-068>071-073-292000-
KNOX TN-JEFFERSON TN-NORTH SEVIER TN-LOUDON TN-GRAINGER TN-
ANDERSON TN-NW BLOUNT TN-
301 PM EDT THU MAY 29 2014

...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL JEFFERSON...NORTHERN
BLOUNT...EAST CENTRAL ANDERSON...KNOX...SOUTHWESTERN GRAINGER...
NORTHWESTERN SEVIER AND EAST CENTRAL LOUDON COUNTIES UNTIL 400 PM
EDT...

AT 300 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER
MARYVILLE...MOVING NORTHEAST AT 15 MPH.

PEA SIZE INCH HAIL...WINDS IN EXCESS OF 40 MPH...FREQUENT LIGHTNING
AND HEAVY RAINS WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
KNOXVILLE...MARYVILLE...ALCOA...FARRAGUT...LOUISVILLE...ROCKFORD...
EAGLETON VILLAGE...STRAWBERRY PLAINS...HALLS...FRIENDSVILLE...
WILDWOOD...WALLAND...SEYMOUR...MALONEYVILLE...MASCOT...LAKE FOREST...
BEARDEN...POWELL AND KIMBERLIN HEIGHTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3565 8387 3575 8419 3616 8404 3606 8357
TIME...MOT...LOC 1900Z 200DEG 10KT 3576 8394

DH
Local storm report, May 29, 2:56 PM CDT, 2 hours 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
356 PM EDT THU MAY 29 2014

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

0340 PM     TSTM WND DMG     KNOXVILLE               35.97N 83.95W
05/29/2014                   KNOX               TN   911 CALL CENTER

            TREES AND POWER LINES DOWN ON MERCHANTS DRIVE.

&&
Special weather statement, May 29, 4:05 PM CDT, 1 hour 16 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
505 PM EDT THU MAY 29 2014

TNZ017-018-046-292145-
JOHNSON TN-SULLIVAN TN-NORTHWEST CARTER TN-
505 PM EDT THU MAY 29 2014

...SIGNIFICANT WEATHER ADVISORY FOR SULLIVAN...JOHNSON AND CARTER
COUNTIES IN NORTHEAST TENNESSEE...

AT 503 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
OAK GROVE...OR 9 MILES NORTH OF JOHNSON CITY...MOVING NORTHEAST AT 5
TO 10 MPH.

HALF INCH HAIL AND WINDS IN EXCESS OF 30 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
KINGSPORT...BRISTOL TN...COLONIAL HEIGHTS...WALNUT HILL...SPURGEON...
BLUFF CITY...WARRIORS PATH S.P....BLOUNTVILLE...BLOOMINGDALE...
MORRIL'S CAVE...SHADY VALLEY...SOUTH HOLSTON DAM AND TRI-CITY
AIRPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 3643 8193 3645 8254 3658 8260 3658 8178
TIME...MOT...LOC 2103Z 216DEG 5KT 3646 8240
Special weather statement, May 29, 4:28 PM CDT, 53 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
528 PM EDT THU MAY 29 2014

TNZ014-015-038-292215-
HANCOCK TN-CLAIBORNE TN-GRAINGER TN-
528 PM EDT THU MAY 29 2014

...SIGNIFICANT WEATHER ADVISORY FOR CLAIBORNE AND HANCOCK COUNTIES
IN TENNESSEE...

AT 527 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM
OVER TAZEWELL...OR 12 MILES NORTH OF RUTLEDGE...MOVING NORTHEAST AT
15 MPH.

WINDS IN EXCESS OF 30 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
SNEEDVILLE...RUTLEDGE...NEW TAZEWELL...TAZEWELL...HARROGATE...
EVANSTON...SPRINGDALE...POWELL RIVER PRESERVE...HOWARD QUARTER...
THORN HILL...LONE MOUNTAIN...SANDLICK AND ARTHUR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 3628 8351 3643 8379 3656 8382 3657 8308
TIME...MOT...LOC 2127Z 223DEG 31KT 3646 8353
Special weather statement, May 29, 4:49 PM CDT, 32 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
549 PM EDT THU MAY 29 2014

TNZ016-017-042-044-292230-
WASHINGTON TN-HAWKINS TN-SULLIVAN TN-NORTHWEST GREENE TN-
549 PM EDT THU MAY 29 2014

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN SULLIVAN...NORTHERN
HAWKINS AND NORTHERN WASHINGTON COUNTIES IN TENNESSEE...

AT 548 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
COLONIAL HEIGHTS...OR NEAR KINGSPORT...MOVING NORTH AT 5 MPH.

HALF INCH HAIL AND WINDS IN EXCESS OF 30 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
JOHNSON CITY...KINGSPORT...SURGOINSVILLE...OAK GROVE...SPURGEON...
COLONIAL HEIGHTS...GRAY...CHURCH HILL...MOUNT CARMEL...WARRIORS PATH
S.P....BAYS MOUNTAIN S.P....FALL BRANCH...SULLIVAN GARDENS...TRI-CITY
AIRPORT...BLOOMINGDALE AND BLOUNTVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3635 8238 3649 8296 3658 8281 3657 8233
TIME...MOT...LOC 2148Z 178DEG 6KT 3645 8259
Special weather statement, May 29, 5:21 PM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 2:01 PM CDTSpecial Weather StatementMRXBlount, Knox59 min
May 29, 2:15 PM CDTSevere Thunderstorm WarningMRXAnderson, Blount, Knox, Loudon, Roane, Union60 min
May 29, 4:05 PM CDTSpecial Weather StatementMRXSullivan40 min
May 29, 4:28 PM CDTSpecial Weather StatementMRXClaiborne, Hancock47 min
May 29, 4:49 PM CDTSpecial Weather StatementMRXWashington41 min
May 29, 5:12 PM CDTAreal Flood AdvisoryMRXHawkins, Sullivan, Washington3 hr
May 29, 5:17 PM CDTSevere Thunderstorm WarningMRXGreene, Hawkins, Sullivan, Washington28 min
May 29, 5:21 PM CDTAreal Flood AdvisoryMRXClaiborne3 hr
May 29, 5:43 PM CDTSpecial Weather StatementMRXBradley47 min
May 29, 6:16 PM CDTSpecial Weather StatementMRXBledsoe44 min
May 29, 6:39 PM CDTAreal Flood AdvisoryMRXBledsoe3 hr
May 29, 11:53 AM CDTSevere Thunderstorm WarningMRXCherokee, Clay37 min

Nearby

Special Weather Statements in Tennessee, 2014Every special weather statement in 2014

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.