Alert archive / Tennessee / Wind Advisories in 2010

Wind Advisory 17, NWS Morristown, TN

November 30, 201011 counties in Tennessee; Russell County, Washington County, City of Bristol, Virginia

NWS Morristown, TN issued this wind advisory at Nov 30, 2010, 2:50 PM EST for 11 counties in Tennessee; Russell County, Washington County, City of Bristol, Virginia. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Nov 30, 2010, 2:50 PM EST (19:50 UTC)
Expired
Nov 30, 2010, 5:53 PM EST
In force
3 hr
Issued by
NWS Morristown, TN

Counties Blount County, TN, Carter County, TN, Cocke County, TN, Greene County, TN, Johnson County, TN, McMinn County, TN, Monroe County, TN, Sevier County, TN, Sullivan County, TN, Unicoi County, TN, Washington County, TN, City of Bristol, VA, Russell County, VA, Washington County, VA

The radar

The Knoxville radar (KMRX), 51 km from the middle of the area, began a volume at 19:51 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, 7.8 hours before the alert went out and 338 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 2010-11-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 14 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 2010-11-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -136 square meters per square second.1939587897117Sfc1 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
14 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
704 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
-136 m²/s²
0-3 km storm-relative helicity
-299 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 wind advisory 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 wind advisory went out at Nov 30, 2:30 PM EST, 20 minutes earlier.

Area forecast discussion, Nov 30, 2:30 PM EST, 20 minutes before
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Hazardous weather outlook, Nov 30, 4:16 AM EST, 10 hours 34 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MORRISTOWN TN
416 AM EST TUE NOV 30 2010

NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-
005-006-008-010930-
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-
416 AM EST TUE NOV 30 2010 /316 AM CST TUE NOV 30 2010/

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

.DAY ONE...TODAY AND TONIGHT

A POWERFUL STORM SYSTEM WILL BRING STRONG SOUTHEASTERLY WINDS ACROSS
THE HIGHER ELEVATIONS TONIGHT...WITH THESE HIGH WINDS ALSO AFFECTING
THE FOOTHILLS DUE TO MOUNTAIN WAVES. STRONG WINDS WILL ALSO BE
POSSIBLE ELSEWHERE AS SOME OF THE STRONGER SHOWERS PULL THESE
STRONG WINDS DOWN INTO THE VALLEY AREAS.

FOR FURTHER DETAILS...PLEASE SEE THE HIGH WIND WARNING AND WIND
ADVISORY PRODUCT (MEMNPWMRX).

ANOTHER CONCERN INVOLVES THE POSSIBILITY OF THUNDERSTORMS
DEVELOPING ACROSS SOUTHEAST TENNESSEE...SINCE THESE STORMS WILL
LIKELY ROTATE AND COULD PRODUCE ISOLATED TORNADOES... MAINLY OVER
SOUTHEAST TENNESSEE.

IN ADDITION TO THE STRONG WINDS...SOME AREAS COULD EXPERIENCE MINOR
FLOODING DUE TO LOCALLY HEAVY RAINFALL. TEMPERATURES WILL DROP
DRAMATICALLY TONIGHT...WITH ANY LINGERING RAIN SHOWERS CHANGING TO
SNOW SHOWERS ALONG WITH LIGHT ACCUMULATIONS ACROSS THE HIGHER
ELEVATIONS BY EARLY WEDNESDAY MORNING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TODAY FOR DAMAGING WIND
REPORTS...ESPECIALLY IN AND AROUND THE MOUNTAINS.

In the hours before

Special weather statement, Nov 30, 9:17 AM EST, 5 hours 33 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
917 AM EST TUE NOV 30 2010

TNZ081-082-098-099-301500-
BLEDSOE TN-HAMILTON TN-MARION TN-SEQUATCHIE TN-
817 AM CST TUE NOV 30 2010

...SIGNIFICANT WEATHER ADVISORY FOR MARION...HAMILTON...SEQUATCHIE
AND BLEDSOE COUNTIES UNTIL 900 AM CST/1000 AM EST/...

AT 814 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 6 MILES SOUTHEAST OF
TRACY CITY TO 23 MILES SOUTH OF BRIDGEPORT...AND MOVING NORTHEAST AT
40 MPH.

WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THESE STORMS...ALONG WITH
HEAVY RAIN.

LOCALLY HEAVY RAINS...IN EXCESS OF ONE INCH PER HOUR...MAY OCCUR WITH
THESE THUNDERSTORMS. MOTORISTS SHOULD BE ALERT FOR PONDING OF WATER
ON ROADWAYS...AND POSSIBLE MINOR FLOODING OF LOW LYING AREAS. DO NOT
DRIVE THROUGH WATERS OF UNKNOWN DEPTH. TURN AROUND! DON'T DROWN!

STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER
DETAILS OR UPDATES.

DGS
Local storm report, Nov 30, 9:42 AM EST, 5 hours 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
942 AM EST TUE NOV 30 2010

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

0930 AM     NON-TSTM WND DMG ANDREWS                 35.20N 83.82W
11/30/2010                   CHEROKEE           NC   TRAINED SPOTTER

            SEVERAL TREES DOWN AND A TRAMPOLINE BLOWN ONTO A STORAGE
            BUILDING.

&&

FERRELL
Special weather statement, Nov 30, 10:15 AM EST, 4 hours 35 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
1015 AM EST TUE NOV 30 2010

TNZ084-085-099>101-301600-
BRADLEY TN-HAMILTON TN-MCMINN TN-MEIGS TN-WEST POLK TN-
1015 AM EST TUE NOV 30 2010

...SIGNIFICANT WEATHER ADVISORY FOR POLK...BRADLEY...HAMILTON...
MCMINN AND MEIGS COUNTIES UNTIL 1100 AM EST...

AT 1010 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM HARRISON TO 11 MILES
SOUTH OF FORT OGLETHORPE...AND MOVING NORTHEAST AT 50 MPH.

WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THESE STORMS...ALONG WITH
HEAVY RAIN.

THESE STORMS WILL BE NEAR...
OOLTEWAH AND EAST BRAINERD AROUND 1020 AM EST.
BIRCHWOOD AND COLLEGEDALE AROUND 1025 AM EST.
BIG SPRING AND MCDONALD AROUND 1030 AM EST.
HOPEWELL AROUND 1035 AM EST.
HILLSVIEW...FLINT SPRINGS AND CLEVELAND AROUND 1040 AM EST.
WATERVILLE...TASSO AND GAP SPRINGS AROUND 1045 AM EST.
RICEVILLE AROUND 1050 AM EST.

IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.

LOCALLY HEAVY RAINS...IN EXCESS OF ONE INCH PER HOUR...MAY OCCUR WITH
THESE THUNDERSTORMS. MOTORISTS SHOULD BE ALERT FOR PONDING OF WATER
ON ROADWAYS...AND POSSIBLE MINOR FLOODING OF LOW LYING AREAS. DO NOT
DRIVE THROUGH WATERS OF UNKNOWN DEPTH. TURN AROUND! DON'T DROWN!

DGS
Local storm report, Nov 30, 12:01 PM EST, 2 hours 49 minutes before
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Local storm report, Nov 30, 2:19 PM EST, 31 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Nov 30, 5:44 AM ESTAreal Flood AdvisoryMRXAnderson, Bledsoe, Bradley, Campbell, Hamilton, Loudon and 8 more4 hr
Nov 30, 8:39 AM ESTFlash Flood WarningMRXMorgan4 hr
Nov 30, 9:37 AM ESTAreal Flood AdvisoryMRXAnderson, Bledsoe, Blount, Bradley, Campbell, Claiborne and 16 more4 hr
Nov 30, 11:18 AM ESTRiver Flood WarningMRXSevier17 hr
Nov 30, 1:17 PM ESTAreal Flood AdvisoryMRXCherokee, Clay118 min

Nearby

Wind Advisories in Tennessee, 2010Wind Advisories in Virginia, 2010Every wind advisory in 2010

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.