Alert archive / Tennessee / Tornado Warnings in 2006

Tornado Warning 28, NWS Nashville, TN

April 2, 2006Williamson County, Tennessee

NWS Nashville, TN issued this tornado warning at Apr 2, 2006, 11:26 PM CDT for Williamson County, Tennessee. It was in force for 34 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: Apr 2, 2006, 11:26 PM CDT (04:26 UTC)
Expired: Apr 3, 2006, 12:00 AM CDT
In force: 34 min
Issued by: NWS Nashville, TN
Area: Counties, with a storm outline in the text

County Williamson County, TN

The radar

The Nashville radar (KOHX), 51 km from the middle of the area, began a volume at 04:28 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this tornado warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

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

Issued	Product	Office	Lasted
Apr 2, 10:27 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 4.4 hours before the alert went out and 38 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: 80 J/kg
Mixed-layer CIN: -308 J/kg
Mixed-layer LCL: 1096 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 324 m²/s²
0-3 km storm-relative helicity: 318 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.

000 
WFUS54 KOHX 030426
TOROHX
TNC187-030500-
/O.NEW.KOHX.TO.W.0028.060403T0426Z-060403T0500Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
1126 PM CDT SUN APR 2 2006

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  WILLIAMSON COUNTY IN TENNESSEE

* UNTIL MIDNIGHT CDT

* AT 1124 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER EXTREME
  SOUTH CENTRAL WILLIAMSON COUNTY...OR ABOUT 12 MILES SOUTH OF
  FRANKLIN...MOVING EAST AT 45 MPH.

DO NOT USE YOUR CAR TO TRY TO OUTRUN A TORNADO. CARS ARE EASILY
TOSSED AROUND BY TORNADO WINDS. IF YOU ARE CAUGHT IN THE PATH OF A
TORNADO...LEAVE THE CAR AND GO TO A STRONG BUILDING. IF NO SAFE
STRUCTURE IS NEARBY...SEEK SHELTER IN A DITCH OR LOW SPOT AND COVER
YOUR HEAD.

LAT...LON 3583 8691 3573 8680 3580 8670 3597 8672

$$

21

1 follow-up statement

000 
WWUS54 KOHX 030432
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
1129 PM CDT SUN APR 2 2006

TNC187-030500-
/O.CON.KOHX.TO.W.0028.000000T0000Z-060403T0500Z/
WILLIAMSON TN-
1129 PM CDT SUN APR 2 2006

...A TORNADO WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT FOR 
WILLIAMSON COUNTY...

AT 1128 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED 9 MILES SOUTHEAST OF
FRANKLIN...MOVING EAST AT 45 MPH.

SEVERE THUNDERSTORMS CAPABLE OF PRODUCING TORNADOES WERE ALSO 
LOCATED 5 TO 10 MILES SOUTHWEST OF FRANKLIN...MOVING EAST AT 45 MPH.

IN ADDITION TO THE TORNADO...THESE STORMS ARE CAPABLE OF PRODUCING 
GOLFBALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CDT MONDAY MORNING FOR
TENNESSEE.

LAT...LON 3585 8717 3573 8680 3580 8670 3601 8688

$$

13

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Nashville, TN wrote its last area forecast discussion before this tornado warning went out at Apr 2, 1:50 PM CDT, 9 hours 36 minutes earlier.

Area forecast discussion, Apr 2, 1:50 PM CDT, 9 hours 36 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
150 PM CDT SUN APR 2 2006

.DISCUSSION...
MAIN QUESTION FOR THIS FORECAST IS CONVECTION THIS EVENING AND
TONIGHT. MOS GUIDANCE POPS SEEM ABNORMALLY LOW (20-30%) GIVEN
THE APPROACH OF A SIGNIFICANT SHORTWAVE TROUGH LATE TONIGHT.
MESOETA FORECAST SOUNDINGS SEEM TO ARGUE BOTH FOR AND AGAINST. A
LARGE PORTION OF THE COLUMN ABOVE 750MB DRIES OUT SIGNIFICANTLY WITH
PRECIPITABLE WATER DROPPING FROM 1.28 INCHES TO 0.94 INCHES IN 6
HOURS. IF THIS HAPPENS...IT WOULD LIKELY SIGNIFICANTLY LIMIT
THUNDERSTORM ACTIVITY. ON THE OTHER HAND...THE DRIER AIR ALOFT WOULD
BE MORE CONDUCIVE TO TSTM DOWNBURST WINDS FOR THE TSTMS THAT DO
MANAGE TO FORM. ALSO...THE FORECAST SOUNDINGS KEEP LIFTED INDICES
AT -4 OR LESS ALL NIGHT WITH TOTAL TOTALS NEAR OR ABOVE 50.

I GUESS THE UPSHOT OF THIS DATA IS THAT I WILL TAKE THE PATH OF
LEAST REGRET AND GO SIGNIFICANTLY ABOVE POPS AND WILL ALSO MENTION
THE POSSIBILITY OF SVR STORMS FOR THE EVENING HOURS...GIVEN THAT SELS
HAS ALL OF THE AREA IN A SLIGHT RISK OF SEVERE TSTMS.

WILL HANG ON TO A SLIGHT CHANCE OF RAIN FOR TOMORROW MORNING
UNTIL THE SFC RIDGE BEGINS TO MOVE IN AND SHUT OFF ANY CHANCE OF
RAIN. THE 1000-850 LAYER TEMPS INDICATE THAT THE COLD FRONT WONT
GET INTO NW MIDDLE TENNESSEE UNTIL 7 AM TOMORROW MORNING AND
PROGRESS RAPIDLY EWD ACROSS THE STATE DURING THE MORNING.

SFC RIDGE AFFECTS THE AREA FROM MON NGT THROUGH TUE NGT AS THE NEXT
LOW PRESSURE SYSTEM PUSHES INTO THE PLAINS ON WED AND GENERATES A
CHANCE OF RAIN FOR LATE WED NGT AND ON THU AS THE ASSOCD WRM FRONT
MOVES INTO THE AREA. CHANCE OF RAIN WILL CONTINUE AS THE LOW PUSHES
EWD ACROSS THE OHIO VALLEY...DRAGGING A COLD FRONT THROUGH THE STATE
SAT AM. &&

.PRELIMINARY POINT TEMPS/POPS...
NASHVILLE    57  66  37  63 /  50  20   5   0
CLARKSVILLE  56  62  35  60 /  50  20   5   0
CROSSVILLE   56  64  35  58 /  60  30  10   0

&&

.OHX WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

JLM

Hazardous weather outlook, Apr 2, 5:30 AM CDT, 17 hours 56 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
530 AM CDT SUN APR 2 2006

TNZ005>011-022>034-056>066-075-077>080-093>095-031030-
BEDFORD-BENTON-CANNON-CHEATHAM-CLAY-COFFEE-CUMBERLAND-DAVIDSON-
DEKALB-DICKSON-FENTRESS-GILES-GRUNDY-HICKMAN-HOUSTON-HUMPHREYS-
JACKSON-LAWRENCE-LEWIS-MACON-MARSHALL-MAURY-MONTGOMERY-OVERTON-PERRY-
PICKETT-PUTNAM-ROBERTSON-RUTHERFORD-SMITH-STEWART-SUMNER-TROUSDALE-
VAN BUREN-WARREN-WAYNE-WHITE-WILLIAMSON-WILSON-
530 AM CDT SUN APR 2 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF MIDDLE TENNESSEE.

.DAY ONE...TODAY AND TONIGHT

A WARM FRONT WILL MOVE NORTHWARD ACROSS THE AREA TODAY AND
PRODUCE THE LIKELIHOOD FOR THUNDERSTORMS. A FEW OF THE
STORMS COULD BECOME SEVERE WITH HAIL AND DAMAGING WINDS.

A COLD FRONT WILL MOVE IN TONIGHT...AND BRING A SQUALL LINE
WITH IT. A FEW STORMS MAY BE SEVERE WITH HAIL AND DAMAGING
WINDS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

ANOTHER COLD FRONT IS EXPECTED LATE IN THE WEEK...ON
THURSDAY NIGHT AND FRIDAY...AND MAY PRODUCE ISOLATED
SEVERE THUNDERSTORMS IN THE MID STATE.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT
PERSONNEL IS POSSIBLE TODAY AND TONIGHT.

19

In the hours before

Local storm report, Apr 2, 9:57 PM CDT, 1 hour 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
957 PM CDT SUN APR 02 2006

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

0950 PM     TSTM WND GST     GALLATIN                36.38N 86.45W
04/02/2006  M65 MPH          SUMNER             TN   TRAINED SPOTTER

            ALSO QUARTER-SIZED HAIL REPORTS VARIOUS SOURCES

&&

MGIRODO

Local storm report, Apr 2, 10:13 PM CDT, 1 hour 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1013 PM CDT SUN APR 02 2006

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

0955 PM     TORNADO          CAMDEN                  36.06N 88.10W
04/02/2006                   BENTON             TN   LAW ENFORCEMENT

            AT LEAST 1 HOME DESTROYED NUMEROUS TREES DOWN

&&

MGIRODO

Local storm report, Apr 2, 10:32 PM CDT, 54 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1032 PM CDT SUN APR 02 2006

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

0730 PM     TSTM WND DMG     DOVER                   36.48N 87.84W
04/02/2006                   STEWART            TN   EMERGENCY MNGR

            MAJOR ROOF DAMAGE ON 2 STORES AND CHURCH ACTIVITY CENTER
            SEVERAL TREES AND POWER LINES DOWN.

&&

MGIRODO

Special weather statement, Apr 2, 10:49 PM CDT, 37 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
1049 PM CDT SUN APR 2 2006

TNZ011-034-030435-
FENTRESS-PICKETT-
1049 PM CDT SUN APR 2 2006

...STRONG THUNDERSTORMS MOVING INTO FENTRESS AND EASTERN PICKETT
COUNTIES...

AT 1050 PM...RADAR INDICATED A BAND OF STRONG THUNDERSTORMS MOVING
INTO THE WESTERN PART OF FENTRESS COUNTY AND THE EASTERN HALF OF
PICKETT COUNTY. WIND GUSTS TO 40 MPH AND SMALL HAIL CAN BE EXPECTED.

TORNADO WATCH REMAINS IN EFFECT FOR A LARGE PART OF MIDDLE TENNESSEE
UNTIL 1 AM CDT...

21

Local storm report, Apr 2, 11:18 PM CDT, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1118 PM CDT SUN APR 02 2006

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

1117 PM     FUNNEL CLOUD     9 N CAMDEN              36.19N 88.10W
04/02/2006                   BENTON             TN   LAW ENFORCEMENT

&&

MGIRODO

Local storm report, Apr 2, 11:25 PM CDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
1125 PM CDT SUN APR 02 2006

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

1120 PM     HAIL             SPRING HILL             35.74N 86.92W
04/02/2006  M2.00 INCH       MAURY              TN   AMATEUR RADIO

&&

MGIRODO

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 2, 7:13 PM CDT	Severe Thunderstorm Warning	OHX	Stewart	24 min
Apr 2, 8:23 PM CDT	Tornado Warning	OHX	Wayne	52 min
Apr 2, 8:40 PM CDT	Tornado Warning	OHX	Benton	50 min
Apr 2, 9:07 PM CDT	Severe Thunderstorm Warning	OHX	Sumner	23 min
Apr 2, 9:09 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham	21 min
Apr 2, 9:11 PM CDT	Severe Thunderstorm Warning	OHX	Robertson	19 min
Apr 2, 9:14 PM CDT	Severe Thunderstorm Warning	OHX	Lawrence, Wayne	46 min
Apr 2, 9:15 PM CDT	Tornado Warning	OHX	Humphreys	30 min
Apr 2, 9:19 PM CDT	Severe Thunderstorm Warning	OHX	Dickson	26 min
Apr 2, 9:21 PM CDT	Tornado Warning	OHX	Benton	54 min
Apr 2, 9:23 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Sumner	52 min
Apr 2, 9:38 PM CDT	Tornado Warning	OHX	Humphreys	37 min
Apr 2, 9:41 PM CDT	Severe Thunderstorm Warning	OHX	Macon, Trousdale	34 min
Apr 2, 9:45 PM CDT	Severe Thunderstorm Warning	OHX	Wilson	45 min
Apr 2, 9:47 PM CDT	Tornado Warning	OHX	Dickson, Hickman	58 min
Apr 2, 10:07 PM CDT	Severe Thunderstorm Warning	OHX	Smith, Trousdale	38 min
Apr 2, 10:11 PM CDT	Severe Thunderstorm Warning	OHX	Clay	34 min
Apr 2, 10:12 PM CDT	Tornado Warning	OHX	Humphreys	33 min
Apr 2, 10:15 PM CDT	Severe Thunderstorm Warning	OHX	Jackson	45 min
Apr 2, 10:19 PM CDT	Tornado Warning	OHX	Clay	20 min
Apr 2, 10:22 PM CDT	Severe Thunderstorm Warning	OHX	Hickman, Lewis	38 min
Apr 2, 10:29 PM CDT	Tornado Warning	OHX	Jackson, Overton	46 min
Apr 2, 10:35 PM CDT	Severe Thunderstorm Warning	OHX	Stewart	55 min
Apr 2, 10:40 PM CDT	Severe Thunderstorm Warning	OHX	Dickson	21 min
Apr 2, 11:02 PM CDT	Severe Thunderstorm Warning	OHX	Maury	43 min
Apr 2, 11:05 PM CDT	Severe Thunderstorm Warning	OHX	Hickman	25 min
Apr 2, 11:11 PM CDT	Tornado Warning	OHX	Benton, Houston	49 min
Apr 2, 11:16 PM CDT	Severe Thunderstorm Warning	OHX	Jackson, Overton	44 min
Apr 2, 11:19 PM CDT	Severe Thunderstorm Warning	OHX	Williamson	41 min
Apr 2, 11:28 PM CDT	Severe Thunderstorm Warning	OHX	Montgomery	47 min
Apr 2, 11:31 PM CDT	Severe Thunderstorm Warning	OHX	Stewart	29 min
Apr 2, 11:35 PM CDT	Severe Thunderstorm Warning	OHX	Rutherford	40 min
Apr 2, 11:46 PM CDT	Tornado Warning	OHX	Perry	44 min
Apr 2, 11:54 PM CDT	Tornado Warning	OHX	Dickson, Montgomery	36 min
Apr 2, 11:56 PM CDT	Tornado Warning	OHX	Bedford, Rutherford	34 min
Apr 2, 11:57 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Robertson, Williamson	48 min
Apr 3, 12:06 AM CDT	Severe Thunderstorm Warning	OHX	Hickman, Lawrence, Lewis, Wayne	54 min
Apr 3, 12:11 AM CDT	Severe Thunderstorm Warning	OHX	Van Buren, Warren, White	34 min
Apr 3, 12:11 AM CDT	Severe Thunderstorm Warning	OHX	Van Buren, Warren, White	34 min
Apr 3, 12:14 AM CDT	Tornado Warning	OHX	Cannon, Coffee	31 min
Apr 3, 12:25 AM CDT	Severe Thunderstorm Warning	OHX	DeKalb	35 min
Apr 3, 12:36 AM CDT	Severe Thunderstorm Warning	OHX	Maury	39 min
Apr 3, 12:47 AM CDT	Severe Thunderstorm Warning	OHX	Cannon, Warren	28 min
Apr 3, 12:48 AM CDT	Severe Thunderstorm Warning	OHX	Hickman, Lawrence, Lewis, Wayne	57 min
Apr 3, 12:49 AM CDT	Severe Thunderstorm Warning	OHX	Cumberland	26 min
Apr 3, 12:50 AM CDT	Severe Thunderstorm Warning	OHX	Williamson	25 min
Apr 3, 1:05 AM CDT	Severe Thunderstorm Warning	OHX	Giles, Marshall	40 min
Apr 3, 1:15 AM CDT	Severe Thunderstorm Warning	OHX	Van Buren, Warren	30 min
Apr 3, 1:35 AM CDT	Severe Thunderstorm Warning	OHX	Cannon, Rutherford	25 min
Apr 3, 1:55 AM CDT	Severe Thunderstorm Warning	OHX	Giles, Lawrence, Wayne	50 min
Apr 3, 1:59 AM CDT	Severe Thunderstorm Warning	OHX	Coffee, DeKalb, Warren, White	31 min
Apr 3, 2:15 AM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Grundy, Van Buren	45 min
Apr 3, 4:20 AM CDT	Lake Wind Advisory	OHX	Bedford, Benton, Cannon, Cheatham, Clay, Coffee and 33 more	14 hr

Nearby

Tornado Warnings in Tennessee, 2006 Every tornado warning in 2006 Tornadoes in 2006

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.