Alert archive / Tennessee / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 273, NWS Nashville, TN

July 14, 2004Bedford County, Marshall County, Maury County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Jul 14, 2004, 2:11 PM CDT for Bedford County, Marshall County, Maury County, Tennessee. It was in force for 64 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: Jul 14, 2004, 2:11 PM CDT (19:11 UTC)
Expired: Jul 14, 2004, 3:15 PM CDT
In force: 64 min
Issued by: NWS Nashville, TN
Area: Counties, with a storm outline in the text

Counties Bedford County, TN, Marshall County, TN, Maury County, TN

The radar

The Nashville radar (KOHX), 68 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 severe thunderstorm 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
Jul 14, 1:45 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 7.2 hours before the alert went out and 55 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: 1898 J/kg
Mixed-layer CIN: -114 J/kg
Mixed-layer LCL: 1040 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 140 m²/s²
0-3 km storm-relative helicity: 211 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS54 KOHX 141911
SVRBNA
TNC003-117-119-142015-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
210 PM CDT WED JUL 14 2004

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BEDFORD COUNTY IN TENNESSEE
  MARSHALL COUNTY IN TENNESSEE
  MAURY COUNTY IN TENNESSEE

* UNTIL 315 PM CDT

* AT 159 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  CLUSTER OF SEVERE THUNDERSTORM 13 MILES WEST OF SPRING HILL...
  OR 13 MILES NORTHWEST OF COLUMBIA...MOVING SOUTHEAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  COLUMBIA AROUND 225 PM CDT
  9 MILES SOUTHWEST OF CHAPEL HILL AROUND 255 PM CDT
  LEWISBURG AROUND 305 PM CDT

THIS THUNDERSTORM IS CAPABLE OF PRODUCING EXTREMELY LARGE HAIL, WHICH
MAY CAUSE INJURY AND PROPERTY DAMAGE. TAKE SHELTER IN A STURDY
BUILDING AND AVOID WINDOWS.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE
FOR DAMAGING WINDS IN EXCESS OF 55 MPH...LARGE HAIL...AND DEADLY
LIGHTNING.

LAT...LON 3577 8722 3583 8712 3579 8695 3569 8675
      3571 8655 3565 8649 3565 8642 3561 8639
      3565 8637 3561 8627 3534 8664 3529 8673

$$
END/ORCHANIAN

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jul 14, 10:10 AM CDT, 4 hours 1 minute earlier.

Area forecast discussion, Jul 14, 10:10 AM CDT, 4 hours 1 minute before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
1010 AM CDT WED JUL 14 2004

.DISCUSSION...
FRONTAL BOUNDARY LOOKS TO MOVE INTO OR THROUGH MIDDLE TENNESSEE
BY 15/00Z. BEFOREHAND MORE SHOWERS AND THUNDERSTORMS ARE EXPECTED
WITH UPPER SHORTWAVE APPROACHING NORTHWEST MISSOURI AT PRESENT...
HEADING SOUTHEAST OVER NORTHWEST MIDDLE TENNESSEE EARLY EVENING.
LITTLE PRE-CONDITIONING NEEDED...WITH 14/12Z KOHX ROAB PWAT 2.02
INCHES...LI/S -8.5 WITH MID LVLS COOLER (NO CIN).

12Z MODELS SHOW SURFACE DEWPOINT GRADIENT/LI GRADIENT IN SOUTHERN
MIDDLE TENNESSEE DURING THE MID TO LATE AFTERNOON. SO THERE IS A
BETTER CHANCE OF DAMAGING STORMS IN SOUTHWEST MIDDLE TENNESSEE.
CURRENT ZONE FORECAST MENTIONS SVR CHANCE TODAY ALL OF MIDDLE
TENNESSEE...AND WILL PROBABLY NARROW TO SOUTHWEST MIDDLE TENNESSEE.
BUT AT THIS POINT...IT IS TOO SOON TO CALL.

&&

.BNA WATCHES/WARNINGS/ADVISORIES...NONE.

&&

04

Hazardous weather outlook, Jul 14, 5:30 AM CDT, 8 hours 41 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
530 AM CDT WED JUL 14 2004

TNZ005>011-022>034-056>066-075-077>080-093>095-151030-
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 WED JUL 14 2004

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE.

.DAY ONE...TODAY AND TONIGHT...
SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP ONCE AGAIN THIS TODAY
AND THIS EVENING. DESPITE THE THUNDERSTORM COMPLEX WHICH PUSHED
THROUGH THE MID STATE ON TUESDAY EVENING, THE ATMOSPHERE REMAINS
MOIST AND UNSTABLE. THEREFORE, LOOK FOR ADDITIONAL STORMS TO DEVELOP
IN THE HUMID AIR MASS.

THE PRIMARY DANGER FROM TODAYS ACTIVITY WILL ONCE AGAIN BE DAMAGING
STRAIGHT LINE WINDS, LARGE HAIL, AND FREQUENT LIGHTNING. IN ADDITION,
THE STORM PREDICTION CENTER HAS PLACED MIDDLE TENNESSEE UNDER A
SLIGHT RISK FOR SEVERE WEATHER FOR TODAY AND TONIGHT.

ADDITIONALLY, HEAT INDICES VALUES MAY TOP 100 DEGREES AGAIN TODAY,
MAINLY IN AREAS SOUTH OF NASHVILLE.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY...
HAZARDOUS WEATHER IS NOT ANTICIPATED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...
ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGERS MAY BE NEEDED
THIS AFTERNOON AND EVENING.

ROSE

In the hours before

Local storm report, Jul 14, 1:45 PM CDT, 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
145 PM CDT WED JUL 14 2004

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

0142 PM     HAIL             8 NW MANCHESTER         35.55N 86.18W
07/14/2004  1.00 INCH        COFFEE             TN   EMERGENCY MNGR

&&

MED

Local storm report, Jul 14, 2:01 PM CDT, 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
201 PM CDT WED JUL 14 2004

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

0200 PM     HAIL             MANCHESTER              35.47N 86.08W
07/14/2004  0.88 INCH        COFFEE             TN   AMATEUR RADIO

&&

MED

Local storm report, Jul 14, 2:03 PM CDT, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
203 PM CDT WED JUL 14 2004

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

0203 PM     HAIL             2 N TULLAHOMA           35.40N 86.22W
07/14/2004  0.88 INCH        COFFEE             TN   AMATEUR RADIO

&&

MED

Local storm report, Jul 14, 2:04 PM CDT, 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
204 PM CDT WED JUL 14 2004

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

0203 PM     HAIL             6 SSE SHELBYVILLE       35.41N 86.41W
07/14/2004  0.88 INCH        BEDFORD            TN   AMATEUR RADIO

&&

MED

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 13, 8:10 PM CDT	Severe Thunderstorm Warning	OHX	Macon, Robertson, Sumner, Trousdale	65 min
Jul 13, 8:31 PM CDT	Tornado Warning	OHX	Sumner	59 min
Jul 13, 8:47 PM CDT	Severe Thunderstorm Warning	OHX	Wilson	58 min
Jul 13, 8:51 PM CDT	Severe Thunderstorm Warning	OHX	Davidson	49 min
Jul 13, 8:53 PM CDT	Severe Thunderstorm Warning	OHX	Montgomery	52 min
Jul 13, 8:55 PM CDT	Severe Thunderstorm Warning	OHX	Smith	65 min
Jul 13, 8:55 PM CDT	Tornado Warning	OHX	Wilson	50 min
Jul 13, 9:01 PM CDT	Severe Thunderstorm Warning	OHX	Clay, Jackson	59 min
Jul 13, 9:10 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham	50 min
Jul 13, 9:11 PM CDT	Severe Thunderstorm Warning	OHX	Cannon, DeKalb, Rutherford	79 min
Jul 13, 9:16 PM CDT	Severe Thunderstorm Warning	OHX	Putnam	59 min
Jul 13, 9:20 PM CDT	Severe Thunderstorm Warning	OHX	Williamson	45 min
Jul 13, 9:23 PM CDT	Severe Thunderstorm Warning	OHX	Overton, Pickett	67 min
Jul 13, 9:25 PM CDT	Severe Thunderstorm Warning	OHX	Dickson	50 min
Jul 13, 9:31 PM CDT	Severe Thunderstorm Warning	OHX	Fentress	59 min
Jul 13, 9:31 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Coffee	74 min
Jul 13, 9:32 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Coffee	73 min
Jul 13, 9:36 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland, White	69 min
Jul 13, 9:38 PM CDT	Severe Thunderstorm Warning	OHX	Montgomery	42 min
Jul 13, 9:40 PM CDT	Severe Thunderstorm Warning	OHX	Warren	80 min
Jul 13, 9:46 PM CDT	Severe Thunderstorm Warning	OHX	Marshall	59 min
Jul 13, 9:47 PM CDT	Severe Thunderstorm Warning	OHX	Maury	53 min
Jul 13, 9:55 PM CDT	Severe Thunderstorm Warning	OHX	Grundy, Van Buren	65 min
Jul 13, 10:04 PM CDT	Severe Thunderstorm Warning	OHX	Williamson	31 min
Jul 13, 10:08 PM CDT	Severe Thunderstorm Warning	OHX	Hickman	52 min
Jul 13, 10:37 PM CDT	Severe Thunderstorm Warning	OHX	Giles, Lawrence, Lewis, Maury	58 min
Jul 13, 10:53 PM CDT	Severe Thunderstorm Warning	OHX	Perry	42 min
Jul 13, 10:57 PM CDT	Severe Thunderstorm Warning	OHX	Wayne	48 min
Jul 14, 1:06 AM CDT	Severe Thunderstorm Warning	OHX	Clay, Macon	24 min
Jul 14, 1:21 AM CDT	Severe Thunderstorm Warning	OHX	Sumner	24 min
Jul 14, 1:24 AM CDT	Severe Thunderstorm Warning	OHX	Rutherford	36 min
Jul 14, 1:36 AM CDT	Severe Thunderstorm Warning	OHX	Sumner, Trousdale	24 min
Jul 14, 1:56 AM CDT	Severe Thunderstorm Warning	OHX	Smith, Trousdale, Wilson	34 min
Jul 14, 4:28 AM CDT	Severe Thunderstorm Warning	OHX	Putnam	32 min
Jul 14, 6:25 AM CDT	Severe Thunderstorm Warning	OHX	Clay, Macon	35 min
Jul 14, 6:41 AM CDT	Severe Thunderstorm Warning	OHX	Jackson, Overton	34 min
Jul 14, 7:00 AM CDT	Severe Thunderstorm Warning	OHX	Fentress, Pickett	15 min
Jul 14, 7:15 AM CDT	Severe Thunderstorm Warning	OHX	Fentress, Pickett	15 min
Jul 14, 1:30 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Coffee	45 min
Jul 14, 1:47 PM CDT	Severe Thunderstorm Warning	OHX	Hickman, Maury, Williamson	28 min
Jul 14, 2:16 PM CDT	Severe Thunderstorm Warning	OHX	Grundy	44 min
Jul 14, 2:30 PM CDT	Severe Thunderstorm Warning	OHX	Lawrence	55 min
Jul 14, 2:39 PM CDT	Severe Thunderstorm Warning	OHX	Wayne	66 min
Jul 14, 3:07 PM CDT	Severe Thunderstorm Warning	OHX	Giles	53 min
Jul 14, 3:27 PM CDT	Severe Thunderstorm Warning	OHX	Lawrence	48 min
Jul 14, 3:40 PM CDT	Flash Flood Warning	OHX	Lawrence	2 hr
Jul 14, 3:41 PM CDT	Severe Thunderstorm Warning	OHX	Wayne	49 min
Jul 14, 4:46 PM CDT	Severe Thunderstorm Warning	OHX	Lawrence, Wayne	59 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2004 Every severe thunderstorm warning in 2004

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.