Alert archive / Tennessee / Tornado Warnings in 2009

Tornado Warning 6, NWS Nashville, TN

March 28, 2009Dickson County, Montgomery County, Tennessee

NWS Nashville, TN issued this tornado warning at Mar 28, 2009, 4:59 PM CDT for Dickson County, Montgomery County, Tennessee. It was in force for 31 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Mar 28, 2009, 4:59 PM CDT (21:59 UTC)
Expired: Mar 28, 2009, 5:30 PM CDT
In force: 31 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon

Counties Dickson County, TN, Montgomery County, TN

What was reported inside it

Time	Report	Where	Remark
Mar 28, 5:05 PM CDT	HAIL 0.88	Clarksville, TN	SPOTTER REPORTED NICKEL SIZE HAIL IN CLARKSVILLE, TN.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

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
Mar 28, 2:23 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 10.0 hours before the alert went out and 69 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: 5 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 574 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 113 m²/s²
0-3 km storm-relative helicity: 75 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 282159
TOROHX
TNC043-125-282230-
/O.NEW.KOHX.TO.W.0006.090328T2159Z-090328T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
459 PM CDT SAT MAR 28 2009

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN DICKSON COUNTY IN MIDDLE TENNESSEE...
  EASTERN MONTGOMERY COUNTY IN MIDDLE TENNESSEE...
  THIS INCLUDES THE CITY OF CLARKSVILLE...

* UNTIL 530 PM CDT

* AT 458 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 22 MILES SOUTH
  OF CLARKSVILLE...OR 13 MILES NORTH OF DICKSON...MOVING NORTHEAST AT
  45 MPH.

* THE TORNADO WILL BE NEAR...
  CLARKSVILLE BY 525 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT SATURDAY EVENING
FOR CENTRAL TENNESSEE.

&&

LAT...LON 3661 8711 3657 8714 3654 8711 3651 8712
      3641 8719 3635 8728 3633 8728 3632 8726
      3614 8739 3623 8754 3629 8751 3637 8751
      3666 8733 3665 8721
TIME...MOT...LOC 2159Z 208DEG 38KT 3627 8743

$$

13

1 follow-up statement

000 
WWUS54 KOHX 282224
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
524 PM CDT SAT MAR 28 2009

TNC043-125-282233-
/O.EXP.KOHX.TO.W.0006.000000T0000Z-090328T2230Z/
DICKSON TN-MONTGOMERY TN-
524 PM CDT SAT MAR 28 2009

...THE TORNADO WARNING FOR EASTERN MONTGOMERY AND NORTHWESTERN
DICKSON COUNTIES WILL EXPIRE AT 530 PM CDT...

THE SEVERE THUNDERSTORM HAS WEAKENED...AND THE TORNADO THREAT HAS 
ENDED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT SATURDAY EVENING
FOR CENTRAL TENNESSEE.

LAT...LON 3661 8711 3657 8714 3654 8711 3651 8712
      3641 8719 3635 8728 3633 8728 3632 8726
      3614 8739 3623 8754 3629 8751 3637 8751
      3666 8733 3665 8721
TIME...MOT...LOC 2223Z 208DEG 38KT 3649 8728

$$

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 Mar 28, 2:57 PM CDT, 2 hours 2 minutes earlier.

Area forecast discussion, Mar 28, 2:57 PM CDT, 2 hours 2 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
257 PM CDT SAT MAR 28 2009

.DISCUSSION...
HAVE JUST ISSUED A TOR WATCH FOR ESSENTIALLY THE WESTERN 2/3 OF
CWA TIL 02Z. THIS MAY BE EXTENDED FURTHER E LATER TONIGHT AS
STRONG COLD FRONT MOVES ACROSS.

FRONT WILL REACH BNA AROUND 00Z. AFTER FROPA TONITE...WRAP-AROUND
CLOUDINESS AND SCT -SHRA INTO SUN.

WEAK HI PRES PREVAILS THEREAFTER INTO MON W/ WEAK RETURN FLOW MON
AFTERNOON. MON NITE THE NEXT SYSTEM MOVES NNE ACROSS CNTRL PLAINS
STATES W/ FRONT INTO CNTRL AR BY 12Z TUE. CHANCE OF SHRA W...SLITE
CHANCE ELSEWHERE. FRONT MOVES INTO W TN TUE AFTERNOON AND ACROSS
CWA TUE NITE...WITH LIKELY POPS.

YET ANOTHER SYSTEM MOVES IN FROM W ON THU WITH HI PRES THU NITE
AND FRI. CHANCE OF WAA -SHRA SAT.
&&

.PRELIMINARY POINT TEMPS/POPS...
NASHVILLE      39  49  35  65 /  80  20   0  10
CLARKSVILLE    37  48  33  67 /  80  20   0  10
CROSSVILLE     38  44  31  63 /  80  30   0  10
COLUMBIA       39  50  35  67 /  80  20   0  10
LAWRENCEBURG   39  51  35  68 /  80  20   0  10
WAVERLY        38  49  34  67 /  80  20   0  10
&&

.OHX WATCHES/WARNINGS/ADVISORIES...
FLOOD WATCH THROUGH SUNDAY MORNING FOR TNZ011-027-028-030>034-
056>066-075-077>080-093>095.

&&

17/MAG

Hazardous weather outlook, Mar 28, 5:02 AM CDT, 11 hours 57 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
502 AM CDT SAT MAR 28 2009

TNZ011-027-028-030>034-056>066-075-077>080-093>095-291030-
PICKETT-DAVIDSON-WILSON-SMITH-JACKSON-PUTNAM-OVERTON-FENTRESS-
PERRY-HICKMAN-LEWIS-WILLIAMSON-MAURY-MARSHALL-RUTHERFORD-CANNON-
DEKALB-WHITE-CUMBERLAND-BEDFORD-COFFEE-WARREN-GRUNDY-VAN BUREN-
WAYNE-LAWRENCE-GILES-
502 AM CDT SAT MAR 28 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE.

.DAY ONE...TODAY AND TONIGHT

A FLOOD WATCH IS IN EFFECT TODAY AND TONIGHT. A STRONG COLD FRONT
WILL SWING THROUGH MIDDLE TENNESSEE TODAY, BRINGING WIDESPREAD
HEAVY RAINFALL AND THUNDERSTORMS. THERE IS A SLIGHT RISK OF
SEVERE STORMS TODAY, AS WELL, WITH THE PRIMARY THREATS BEING LARGE
HAIL AND DAMAGING WIND.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER AND EMERGENCY MANAGER ACTIVATION MAY BE NEEDED.

TNZ005>010-022>026-029-291030-
STEWART-MONTGOMERY-ROBERTSON-SUMNER-MACON-CLAY-BENTON-HOUSTON-
HUMPHREYS-DICKSON-CHEATHAM-TROUSDALE-
502 AM CDT SAT MAR 28 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE.

.DAY ONE...TODAY AND TONIGHT

A STRONG COLD FRONT WILL SWING THROUGH MIDDLE TENNESSEE TODAY,
BRINGING WIDESPREAD SHOWERS AND THUNDERSTORMS. THERE IS A SLIGHT
RISK OF SEVERE STORMS TODAY, AS WELL, WITH THE PRIMARY THREATS
BEING LARGE HAIL AND DAMAGING WIND.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER AND EMERGENCY MANAGER ACTIVATION MAY BE NEEDED.

ROSE

In the hours before

Local storm report, Mar 28, 4:33 PM CDT, 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
433 PM CDT SAT MAR 28 2009

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

0415 PM     HAIL             DOVER                   36.48N 87.84W
03/28/2009  E0.75 INCH       STEWART            TN   LAW ENFORCEMENT

            STEWART COUNTY SHERIFF REPORTED 3/4 INCH HAIL.

&&

LAROSA

Local storm report, Mar 28, 4:34 PM CDT, 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
434 PM CDT SAT MAR 28 2009

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

0420 PM     HAIL             5 SW KINGSTON SPRINGS   36.05N 87.16W
03/28/2009  E0.88 INCH       WILLIAMSON         TN   PUBLIC

            COCORAHS OBSERVER REPORTED 7/8 INCH HAIL.

&&

LAROSA

Local storm report, Mar 28, 4:48 PM CDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
448 PM CDT SAT MAR 28 2009

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

0420 PM     HAIL             5 NW ASHLAND CITY       36.33N 87.12W
03/28/2009  E1.00 INCH       CHEATHAM           TN   TRAINED SPOTTER

            SPOTTER REPORTED 1 INCH HAIL NORTHWEST OF ASHLAND CITY

&&

LAROSA

Local storm report, Mar 28, 4:48 PM CDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE NASHVILLE TN
448 PM CDT SAT MAR 28 2009

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

0445 PM     HAIL             5 NW ASHLAND CITY       36.33N 87.12W
03/28/2009  E1.00 INCH       CHEATHAM           TN   TRAINED SPOTTER

            SPOTTER REPORTED 1 INCH HAIL NORTHWEST OF ASHLAND CITY

&&

LAROSA

Local storm report, Mar 28, 4:54 PM CDT, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
454 PM CDT SAT MAR 28 2009

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

0453 PM     FUNNEL CLOUD     5 NW CLARKSVILLE        36.61N 87.41W
03/28/2009                   MONTGOMERY         TN   TRAINED SPOTTER

            FUNNEL CLOUD SPOTTED NORTHWEST OF CLARKSVILLE NEAR FORT
            CAMPBELL.

&&

LAROSA

Local storm report, Mar 28, 4:58 PM CDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
458 PM CDT SAT MAR 28 2009

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

0456 PM     HAIL             2 S DICKSON             36.05N 87.38W
03/28/2009  E1.00 INCH       DICKSON            TN   TRAINED SPOTTER

            SPOTTER REPORTED 1 INCH HAIL AT 1-40 AND HIGHWAY 46.

&&

LAROSA

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 28, 3:35 PM CDT	Severe Thunderstorm Warning	OHX	Benton, Stewart	10 min
Mar 28, 3:43 PM CDT	Severe Thunderstorm Warning	OHX	Stewart	32 min
Mar 28, 4:13 PM CDT	Severe Thunderstorm Warning	OHX	Stewart	32 min
Mar 28, 4:18 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Dickson, Williamson	42 min
Mar 28, 4:20 PM CDT	Severe Thunderstorm Warning	OHX	Houston, Montgomery, Stewart	25 min
Mar 28, 4:35 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Montgomery, Robertson	40 min
Mar 28, 4:44 PM CDT	Severe Thunderstorm Warning	OHX	Montgomery, Stewart	31 min
Mar 28, 4:47 PM CDT	Severe Thunderstorm Warning	OHX	Dickson, Montgomery	28 min
Mar 28, 4:55 PM CDT	Tornado Warning	OHX	Montgomery	16 min
Mar 28, 4:56 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Hickman, Williamson	32 min
Mar 28, 5:11 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Dickson, Hickman, Maury, Williamson	34 min
Mar 28, 5:19 PM CDT	Tornado Warning	OHX	Cheatham, Davidson, Dickson, Hickman, Maury, Williamson	26 min
Mar 28, 5:22 PM CDT	Tornado Warning	OHX	Maury	23 min
Mar 28, 5:26 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Dickson, Montgomery, Robertson	49 min
Mar 28, 5:37 PM CDT	Severe Thunderstorm Warning	OHX	Maury, Williamson	23 min
Mar 28, 5:40 PM CDT	Severe Thunderstorm Warning	OHX	Marshall, Maury, Williamson	35 min
Mar 28, 5:41 PM CDT	Tornado Warning	OHX	Cheatham, Davidson, Williamson	35 min
Mar 28, 5:51 PM CDT	Severe Thunderstorm Warning	OHX	Davidson, Williamson	24 min
Mar 28, 5:59 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Giles, Marshall	31 min
Mar 28, 6:09 PM CDT	Severe Thunderstorm Warning	OHX	Marshall, Rutherford, Williamson	36 min
Mar 28, 6:13 PM CDT	Severe Thunderstorm Warning	OHX	Davidson, Robertson, Sumner	47 min
Mar 28, 6:26 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Marshall	34 min
Mar 28, 6:50 PM CDT	Severe Thunderstorm Warning	OHX	Cannon, Rutherford, Wilson	25 min

Nearby

Tornado Warnings in Tennessee, 2009 Every tornado warning in 2009 Tornadoes in 2009

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.