Alert archive / Tennessee / Tornado Warnings in 2009

Tornado Warning 52, NWS Nashville, TN

April 10, 2009Coffee County, Grundy County, Tennessee

NWS Nashville, TN issued this tornado warning at Apr 10, 2009, 2:25 PM CDT for Coffee County, Grundy County, Tennessee. It was in force for 35 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 10, 2009, 2:25 PM CDT (19:25 UTC)
Expired: Apr 10, 2009, 3:00 PM CDT
In force: 35 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon

Counties Coffee County, TN, Grundy County, TN

The radar

The Northeast Alabama radar (KHTX), 56 km from the middle of the area, began a volume at 19:29 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 10, 8:53 AM CDT	Tornado Watch	SPC	7 hr
Apr 10, 11:23 AM CDT	Tornado Watch PDS	SPC	8 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 7.4 hours before the alert went out and 118 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1414 m above ground
0-6 km bulk shear: 71 kt
0-1 km storm-relative helicity: -50 m²/s²
0-3 km storm-relative helicity: -4 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 101925
TOROHX
TNC031-061-102000-
/O.NEW.KOHX.TO.W.0052.090410T1925Z-090410T2000Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
225 PM CDT FRI APR 10 2009

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN COFFEE COUNTY IN MIDDLE TENNESSEE...
  GRUNDY COUNTY IN MIDDLE TENNESSEE...

* UNTIL 300 PM CDT

* AT 222 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 13 MILES WEST OF
  TRACY CITY...OR 12 MILES NORTHEAST OF WINCHESTER...MOVING EAST AT
  40 MPH.

* THE TORNADO WILL BE NEAR...
  8 MILES NORTH OF TRACY CITY BY 235 PM CDT...
  GRUETLI-LAAGER BY 250 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.

&&

LAT...LON 3527 8590 3532 8598 3539 8602 3554 8571
      3554 8561 3550 8553 3545 8553 3544 8551
      3537 8550 3532 8556 3529 8569 3525 8569
      3523 8571 3522 8578 3524 8584 3522 8589
TIME...MOT...LOC 1924Z 249DEG 33KT 3533 8593

$$
STEIGERWALDT

2 follow-up statements

000 
WWUS54 KOHX 101928
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
228 PM CDT FRI APR 10 2009

TNC031-061-102000-
/O.CON.KOHX.TO.W.0052.000000T0000Z-090410T2000Z/
COFFEE TN-GRUNDY TN-
228 PM CDT FRI APR 10 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 300 PM CDT FOR GRUNDY
AND SOUTHEASTERN COFFEE COUNTIES...

AT 227 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR AND STORM 
SPOTTERS SPOTTED AN EXTREMELY DANGEROUS TORNADO. THIS TORNADO WAS 
LOCATED 10 MILES NORTHWEST OF TRACY CITY...OR 14 MILES SOUTHEAST OF 
MANCHESTER...MOVING EAST AT 40 MPH.

THE TORNADO WILL BE NEAR...
  8 MILES NORTH OF TRACY CITY BY 235 PM CDT...
  COALMONT BY 240 PM CDT...
  ALTAMONT BY 245 PM CDT...
  BEERSHEBA SPRINGS AND GRUETLI-LAAGER BY 250 PM CDT...
  PALMER BY 255 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 700 PM CDT FRIDAY EVENING FOR
CENTRAL TENNESSEE.

&&

LAT...LON 3527 8590 3532 8598 3539 8602 3554 8571
      3554 8561 3550 8553 3545 8553 3544 8551
      3537 8550 3532 8556 3529 8569 3525 8569
      3523 8571 3522 8578 3524 8584 3522 8589
TIME...MOT...LOC 1927Z 249DEG 33KT 3534 8590

$$

LAROSA

000 
WWUS54 KOHX 101940
SVSOHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
240 PM CDT FRI APR 10 2009

TNC031-061-102000-
/O.CON.KOHX.TO.W.0052.000000T0000Z-090410T2000Z/
COFFEE TN-GRUNDY TN-
240 PM CDT FRI APR 10 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 300 PM CDT FOR GRUNDY
AND SOUTHEASTERN COFFEE COUNTIES...

AT 238 PM CDT...A TORNADO WAS REPORTED. THIS TORNADO WAS LOCATED 
NEAR TRACY CITY...OR 19 MILES NORTHEAST OF WINCHESTER...MOVING EAST 
AT 45 MPH.

THE TORNADO WILL BE NEAR...
  COALMONT AND 7 MILES SOUTH OF ALTAMONT BY 245 PM CDT...
  GRUETLI-LAAGER AND 8 MILES SOUTH OF BEERSHEBA SPRINGS BY 250 PM
  CDT...
  PALMER BY 255 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 700 PM CDT FRIDAY EVENING FOR
CENTRAL TENNESSEE.

&&

LAT...LON 3527 8590 3532 8598 3539 8602 3554 8571
      3554 8561 3550 8553 3545 8553 3544 8551
      3537 8550 3532 8556 3529 8569 3525 8569
      3523 8571 3522 8578 3524 8584 3522 8589
TIME...MOT...LOC 1940Z 256DEG 38KT 3531 8578

$$

LAROSA

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 10, 10:55 AM CDT, 3 hours 30 minutes earlier.

Area forecast discussion, Apr 10, 10:55 AM CDT, 3 hours 30 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
1055 AM CDT FRI APR 10 2009

.DISCUSSION...
ZONE PACKAGE LOOKS FINE. SVR STORMS HAVE CROSSED THE TENNESSEE RIVER
WITH THE AREA OF STORMS MOVING EWD AT 35-40 MPH. INDIVIDUAL STORMS
ARE MOVING NEWD AT ABOUT THE SAME SPEED. CURRENT MOVEMENT WOULD
BRING STORMS INTO WRN DAVIDSON BY 1140AM. COLD FRONT BEHIND THE
STORMS IS EXPECTED TO PUSH INTO WRN MIDDLE TENNESSEE BY 3 PM
WITH FRONT OUT OF THE PLATEAU BY 8 PM.

&&

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

JLM

Hazardous weather outlook, Apr 10, 5:02 AM CDT, 9 hours 23 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
502 AM CDT FRI APR 10 2009

TNZ005>011-022>034-056>066-075-077>080-093>095-111015-
STEWART-MONTGOMERY-ROBERTSON-SUMNER-MACON-CLAY-PICKETT-BENTON-
HOUSTON-HUMPHREYS-DICKSON-CHEATHAM-DAVIDSON-WILSON-TROUSDALE-
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 FRI APR 10 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE.

.DAY ONE...TODAY AND TONIGHT

STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AND
EARLY EVENING...AS A STRONG COLD FRONT PASSES. WHILE DAMAGING WIND
AND LARGE HAIL MAY OCCUR... EXPECTED SUPERCELLS MAY PRODUCE ISOLATED
TORNADOES AS WELL.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

SEVERE THUNDERSTORMS WILL AGAIN BE POSSIBLE MONDAY AND MONDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER AND EMERGENCY MANAGER ACTIVATION MAY BE NEEDED TODAY.

07

In the hours before

Local storm report, Apr 10, 1:54 PM CDT, 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
154 PM CDT FRI APR 10 2009

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

1245 PM     TORNADO          3 N MURFREESBORO        35.90N 86.39W
04/10/2009                   RUTHERFORD         TN   AMATEUR RADIO

            12 HOMES WERE DAMAGED OR DESTROYED IN THE RIVERVIEW AND
            STRATFORD AREAS.

&&

TJOHNSTO

Local storm report, Apr 10, 1:55 PM CDT, 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
155 PM CDT FRI APR 10 2009

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

1229 PM     HAIL             WAYNESBORO              35.32N 87.76W
04/10/2009  M1.75 INCH       WAYNE              TN   EMERGENCY MNGR

            IN CYPRESS INN ON HIGHWAY 17 GOLF BALL SIZE HAIL WAS
            REPORTED.

&&

JBW

Local storm report, Apr 10, 2:07 PM CDT, 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
207 PM CDT FRI APR 10 2009

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

1150 AM     HAIL             10 N CENTERVILLE        35.94N 87.45W
04/10/2009  M0.88 INCH       HICKMAN            TN   EMERGENCY MNGR

            NICKEL SIZE HAIL WAS REPORTED IN PINEWOOD.

&&

JBW

Local storm report, Apr 10, 2:15 PM CDT, 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
215 PM CDT FRI APR 10 2009

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

0206 PM     HAIL             MANCHESTER              35.47N 86.08W
04/10/2009  E0.25 INCH       COFFEE             TN   TRAINED SPOTTER

            PENNY SIZE HAIL WAS REPORTED AT 1203 E CARROLL ST IN
            MANCHESTER.

&&

JBW

Local storm report, Apr 10, 2:20 PM CDT, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
220 PM CDT FRI APR 10 2009

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

1245 PM     HAIL             WAYNESBORO              35.32N 87.76W
04/10/2009  M1.75 INCH       WAYNE              TN   PUBLIC

            GOLF BALL SIZE HAIL WAS REPORTED JUST EAST OF WAYNESBORO.

&&

JBW

Local storm report, Apr 10, 2:22 PM CDT, 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
222 PM CDT FRI APR 10 2009

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

1235 PM     FUNNEL CLOUD     10 N PULASKI            35.34N 87.03W
04/10/2009                   GILES              TN   TRAINED SPOTTER

            FUNNELL CLOUD WAS REPORTED 10 MILES NORTH OF PULASKI.

&&

JBW

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 10, 3:54 AM CDT	Severe Thunderstorm Warning	OHX	Sumner	36 min
Apr 10, 4:30 AM CDT	Tornado Warning	OHX	Maury	30 min
Apr 10, 4:37 AM CDT	Severe Thunderstorm Warning	OHX	Williamson	38 min
Apr 10, 10:20 AM CDT	Tornado Warning	OHX	Benton, Houston, Stewart	55 min
Apr 10, 10:45 AM CDT	Tornado Warning	OHX	Benton, Houston, Humphreys, Stewart	30 min
Apr 10, 10:54 AM CDT	Areal Flood Advisory	OHX	Benton	3 hr
Apr 10, 11:02 AM CDT	Tornado Warning	OHX	Houston, Montgomery, Stewart	43 min
Apr 10, 11:06 AM CDT	Severe Thunderstorm Warning	OHX	Benton, Humphreys, Perry	24 min
Apr 10, 11:22 AM CDT	Tornado Warning	OHX	Perry, Wayne	38 min
Apr 10, 11:27 AM CDT	Tornado Warning	OHX	Dickson, Montgomery	33 min
Apr 10, 11:30 AM CDT	Severe Thunderstorm Warning	OHX	Dickson, Hickman, Humphreys	30 min
Apr 10, 11:36 AM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Montgomery	39 min
Apr 10, 11:37 AM CDT	Severe Thunderstorm Warning	OHX	Maury, Williamson	38 min
Apr 10, 11:44 AM CDT	Severe Thunderstorm Warning	OHX	Hickman, Lewis, Perry	46 min
Apr 10, 11:51 AM CDT	Tornado Warning	OHX	Lewis, Perry	24 min
Apr 10, 11:57 AM CDT	Tornado Warning	OHX	Cheatham, Davidson, Montgomery, Robertson	33 min
Apr 10, 12:00 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Hickman, Williamson	45 min
Apr 10, 12:06 PM CDT	Tornado Warning	OHX	Wayne	24 min
Apr 10, 12:07 PM CDT	Tornado Warning	OHX	Davidson, Rutherford, Williamson	38 min
Apr 10, 12:14 PM CDT	Tornado Warning	OHX	Bedford, Marshall, Maury, Rutherford, Williamson	31 min
Apr 10, 12:18 PM CDT	Severe Thunderstorm Warning	OHX	Hickman, Lewis, Maury, Williamson	42 min
Apr 10, 12:19 PM CDT	Tornado Warning	OHX	Lawrence, Wayne	26 min
Apr 10, 12:23 PM CDT	Severe Thunderstorm Warning	OHX	Giles, Marshall, Maury	37 min
Apr 10, 12:23 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Dickson, Williamson	52 min
Apr 10, 12:25 PM CDT	Tornado Warning	OHX	Lawrence, Wayne	50 min
Apr 10, 12:29 PM CDT	Tornado Warning	OHX	Robertson, Sumner	46 min
Apr 10, 12:31 PM CDT	Tornado Warning	OHX	Giles, Marshall, Maury	29 min
Apr 10, 12:33 PM CDT	Tornado Warning Emergency	OHX	Cannon, Rutherford, Wilson	42 min
Apr 10, 12:37 PM CDT	Severe Thunderstorm Warning	OHX	Maury	23 min
Apr 10, 12:43 PM CDT	Tornado Warning	OHX	Maury, Williamson	32 min
Apr 10, 12:46 PM CDT	Tornado Warning	OHX	Giles, Marshall	29 min
Apr 10, 12:49 PM CDT	Tornado Warning	OHX	Giles, Lawrence, Maury	26 min
Apr 10, 12:50 PM CDT	Tornado Warning	OHX	Davidson, Williamson, Wilson	25 min
Apr 10, 12:52 PM CDT	Tornado Warning	OHX	Macon, Sumner	23 min
Apr 10, 12:56 PM CDT	Tornado Warning	OHX	Marshall, Maury	34 min
Apr 10, 12:57 PM CDT	Tornado Warning	OHX	Cannon, DeKalb, Rutherford, Smith, Trousdale, Wilson	48 min
Apr 10, 12:58 PM CDT	Tornado Warning	OHX	Giles, Lawrence	32 min
Apr 10, 1:00 PM CDT	Tornado Warning	OHX	Bedford, Marshall	30 min
Apr 10, 1:12 PM CDT	Tornado Warning	OHX	Bedford, Giles, Marshall	33 min
Apr 10, 1:22 PM CDT	Tornado Warning	OHX	Clay, Macon	23 min
Apr 10, 1:22 PM CDT	Tornado Warning	OHX	Bedford, Coffee, Rutherford	38 min
Apr 10, 1:24 PM CDT	Areal Flood Advisory	OHX	Giles, Marshall, Maury	3 hr
Apr 10, 1:32 PM CDT	Tornado Warning	OHX	Giles	43 min
Apr 10, 1:36 PM CDT	Tornado Warning	OHX	DeKalb, Putnam, Smith, White	39 min
Apr 10, 1:42 PM CDT	Tornado Warning	OHX	Bedford, Cannon, Coffee, Warren	48 min
Apr 10, 1:48 PM CDT	Severe Thunderstorm Warning	OHX	Clay, Overton, Pickett	27 min
Apr 10, 1:51 PM CDT	Tornado Warning	OHX	DeKalb, Jackson, Overton, Putnam	39 min
Apr 10, 1:57 PM CDT	Tornado Warning	OHX	Bedford, Coffee, Grundy	48 min
Apr 10, 2:09 PM CDT	Tornado Warning	OHX	Fentress, Overton, Putnam, White	51 min
Apr 10, 2:15 PM CDT	Tornado Warning	OHX	Cumberland, DeKalb, Putnam, Van Buren, Warren, White	30 min
Apr 10, 2:32 PM CDT	Tornado Warning	OHX	Cumberland, Fentress, Overton, Putnam	43 min
Apr 10, 2:43 PM CDT	Tornado Warning	OHX	Cumberland, Van Buren, Warren, White	47 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.