Alert archive / Tennessee / Tornado Warnings in 2009

Tornado Warning 51, NWS Nashville, TN

April 10, 20096 counties in Tennessee

NWS Nashville, TN issued this tornado warning at Apr 10, 2009, 2:15 PM CDT for 6 counties in Tennessee. It was in force for 30 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, 2:15 PM CDT (19:15 UTC)
Expired: Apr 10, 2009, 2:45 PM CDT
In force: 30 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon

Counties Cumberland County, TN, DeKalb County, TN, Putnam County, TN, Van Buren County, TN, Warren County, TN, White County, TN

The radar

The Northeast Alabama radar (KHTX), 118 km from the middle of the area, began a volume at 19:15 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, 7.3 hours before the alert went out and 120 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 101915
TOROHX
TNC035-041-141-175-177-185-101945-
/O.NEW.KOHX.TO.W.0051.090410T1915Z-090410T1945Z/

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

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  WESTERN CUMBERLAND COUNTY IN MIDDLE TENNESSEE...
  SOUTHEASTERN DEKALB COUNTY IN MIDDLE TENNESSEE...
  SOUTHEASTERN PUTNAM COUNTY IN MIDDLE TENNESSEE...
  VAN BUREN COUNTY IN MIDDLE TENNESSEE...
  THIS INCLUDES THE CITY OF SPENCER...
  WARREN COUNTY IN MIDDLE TENNESSEE...
  THIS INCLUDES THE CITY OF MCMINNVILLE...
  WHITE COUNTY IN MIDDLE TENNESSEE...
  THIS INCLUDES THE CITY OF SPARTA...

* UNTIL 245 PM CDT

* AT 214 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR
  MCMINNVILLE...MOVING NORTHEAST AT 35 MPH.

* THE TORNADO WILL BE...
  8 MILES NORTHWEST OF SPENCER BY 240 PM CDT...
  SPARTA BY 245 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM CDT FRIDAY EVENING FOR
CENTRAL TENNESSEE.

&&

LAT...LON 3575 8499 3575 8502 3577 8504 3576 8524
      3572 8526 3557 8542 3554 8562 3554 8574
      3572 8596 3587 8575 3608 8555 3619 8528
      3617 8524 3576 8494
TIME...MOT...LOC 1915Z 237DEG 40KT 3570 8580

$$

21

1 follow-up statement

000 
WWUS54 KOHX 101930
SVSOHX

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

TNC035-041-141-175-177-185-101945-
/O.CON.KOHX.TO.W.0051.000000T0000Z-090410T1945Z/
WARREN TN-WHITE TN-DEKALB TN-CUMBERLAND TN-PUTNAM TN-VAN BUREN TN-
230 PM CDT FRI APR 10 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 245 PM CDT FOR VAN
BUREN...SOUTHEASTERN PUTNAM...WESTERN CUMBERLAND...SOUTHEASTERN
DEKALB...WHITE AND WARREN COUNTIES...

AT 229 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A POSSIBLE TORNADO. THIS TORNADO WAS LOCATED NEAR 
DOYLE...OR 8 MILES NORTHWEST OF SPENCER...MOVING NORTHEAST AT 45 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
SPARTA...PLEASANT HILL AND MONTEREY

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM CDT FRIDAY EVENING FOR
CENTRAL TENNESSEE.

&&

LAT...LON 3575 8499 3575 8502 3577 8504 3576 8524
      3572 8526 3557 8542 3554 8562 3554 8574
      3572 8596 3587 8575 3608 8555 3619 8528
      3617 8524 3576 8494
TIME...MOT...LOC 1930Z 240DEG 37KT 3581 8556

$$

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 20 minutes earlier.

Area forecast discussion, Apr 10, 10:55 AM CDT, 3 hours 20 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 13 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, 1:46 PM CDT, 29 minutes before

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

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

1246 PM     HAIL             6 W LEWISBURG           35.45N 86.89W
04/10/2009  M1.75 INCH       MARSHALL           TN   AIRPLANE PILOT

            GOLF BALL SIZE HAIL WAS REPORTED AT THE INTERSECTION OF
            HIGHWAY 373 AND INTERSTATE 65.

&&

JBW

Local storm report, Apr 10, 1:49 PM CDT, 26 minutes before

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

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

1257 PM     TORNADO          6 S LAWRENCEBURG        35.16N 87.34W
04/10/2009                   LAWRENCE           TN   TRAINED SPOTTER

            POSSIBLE TORNADO ON GROUND WAS REPORTED NEAR LEOMA.

&&

JBW

Local storm report, Apr 10, 1:54 PM CDT, 21 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, 20 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, 8 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, 0 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

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, 2:25 PM CDT	Tornado Warning	OHX	Coffee, Grundy	35 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.