Alert archive / Tennessee / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 199, NWS Nashville, TN

July 5, 20045 counties in Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Jul 5, 2004, 4:06 PM CDT for 5 counties in Tennessee. It was in force for 39 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 5, 2004, 4:06 PM CDT (21:06 UTC)
Expired: Jul 5, 2004, 4:45 PM CDT
In force: 39 min
Issued by: NWS Nashville, TN
Area: Counties, with a storm outline in the text

Counties Cumberland County, TN, Fentress County, TN, Overton County, TN, Putnam County, TN, White County, TN

The radar

The Knoxville radar (KMRX), 142 km from the middle of the area, began a volume at 21:07 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 5, 2:55 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 9.1 hours before the alert went out and 146 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: 2320 J/kg
Mixed-layer CIN: -27 J/kg
Mixed-layer LCL: 581 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 187 m²/s²
0-3 km storm-relative helicity: 217 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.1

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KOHX 052106
SVRBNA
TNC035-049-133-141-185-052145-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
405 PM CDT MON JUL 5 2004

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CUMBERLAND COUNTY IN TENNESSEE
  FENTRESS COUNTY IN TENNESSEE
  OVERTON COUNTY IN TENNESSEE
  PUTNAM COUNTY IN TENNESSEE
  WHITE COUNTY IN TENNESSEE

* UNTIL 445 PM CDT

* AT 354 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM 10 MILES WEST OF JAMESTOWN TO 
  7 MILES EAST OF SPARTA...MOVING EAST AT 30 MPH.

* SEVERE THUNDERSTORMS WILL BE...NEAR
  JAMESTOWN AROUND 410 PM CDT
  CROSSVILLE AROUND 435 PM CDT
  FAIRFIELD GLADE AROUND 445 PM CDT

LAT...LON 3651 8509 3623 8529 3598 8552 3586 8486
      3610 8457 3640 8444

$$

JLM

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 5, 3:20 PM CDT, 46 minutes earlier.

Area forecast discussion, Jul 5, 3:20 PM CDT, 46 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
320 PM CDT MON JUL 5 2004

.DISCUSSION...
MCS SNUCK ACROSS THE TENNESSEE-KENTUCKY LINE THIS AFTERNOON, BRINGING
DAMAGING THUNDERSTORM WINDS WITH IT. A SEVERE THUNDERSTORM WATCH IS
NOW IN EFFECT FOR ALL OF MIDDLE TENNESSEE UNITL 800 PM.

FOLLOWING THE THUNDERSTORMS AND SEVERE WEATHER THIS AFTERNOON,
EXPECT MID LEVEL LOW PRESSURE AREA TO CLOSE OFF OVER WESTERN GREAT
LAKES AND TURN MCS STEARING CURRENTS MORE TOWARD THE SOUTHWEST OVER
THE OHIO VALLEY LATER TONIGHT AND TUESDAY. THIS SHOULD HELP KEEP MCS
PROBLEMS OUT OF OUR FORECAST AREA FOR TONIGHT THROUGH TOMORROW. THUS
(*HOPEFULLY*), WE SHOULD BE ABLE TO GET THROUGH OUR FIRST DAYTIME
PERIOD TOMORROW WITHOUT AN ONSLAUGHT OF MCS COMPLICATIONS.

SHORTWAVE MOVES INTO NORTHWEST MIDDLE TENNESSEE BY LATE TUESDAY
NIGHT AND SWEEPS ACROSS OUR ENTIRE AREA DURING THE DAY ON
WEDNESDAY. THIS WILL INCREASE OUR CHANCE FOR THUNDERSTORMS ONCE
AGAIN, BUT SHOULD BE FOLLOWED, WEDNESDAY NIGHT THROUGH FRIDAY, BY
A PERIOD OF MORE TYPICAL SUMMER-LIKE WEATHER, WITH JUST A SLIGHT
CHANCE OF MAINLY AFTERNOON AND EVENING THUNDERSTORMS EACH DAY.

&&

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

19

Hazardous weather outlook, Jul 5, 11:52 AM CDT, 4 hours 14 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
1152 AM CDT MON JUL 5 2004

TNZ005>011-022>034-056>066-075-077>080-093>095-061030-
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-
1152 AM CDT MON JUL 5 2004

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE.

.DAY ONE...THIS AFTERNOON AND TONIGHT
ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE IN MIDDLE TENNESSEE
THIS AFTERNOON. AN AREA OF THUNDERSTORMS IS EXPECTED TO MOVE
IN FROM THE NORTHWEST AND A FEW THUNDERSTORMS COULD BECOME
SEVERE WITH DAMAGING WINDS...HAIL...AND HEAVY DOWNPOURS. THE
BEST CHANCE FOR STORMS WILL BE OVER THE NORTH...ALONG AND NORTH
OF I 40...ALTHOUGH SOME THUNDERSTORMS WILL PROBABLY DEVELOP
FURTHER SOUTH AS WELL.

DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY
THERE IS A CHANCE OF SCATTERED THUNDERSTORM EACH DAY THROUGH THE
PERIOD. TUESDAY AND WEDNESDAY THERE WILL BE A SLIGHT RISK OF
SEVERE WEATHER IN THE NORTHERN COUNTIES. MOST OF THE THREAT OF
SEVERE WEATHER WILL BE FROM STRONG GUSTY WINDS AND ISOLATED AREAS OF
FLASH FLOODING.

.SPOTTER INFORMATION STATEMENT...
ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL IS
POSSIBLE THIS AFTERNOON.

19

In the hours before

Local storm report, Jul 5, 3:33 PM CDT, 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
333 PM CDT MON JUL 05 2004

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

0315 PM     TSTM WND DMG     2 E NASHVILLE           36.17N 86.75W
07/05/2004                   DAVIDSON           TN   TRAINED SPOTTER

            TREES DOWN IN HERMITAGE

&&

05

Local storm report, Jul 5, 3:35 PM CDT, 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
335 PM CDT MON JUL 05 2004

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

0310 PM     TSTM WND DMG     GALLATIN                36.38N 86.45W
07/05/2004                   SUMNER             TN   TRAINED SPOTTER

            ONE TREE DOWN IN GALLATIN

&&

05

Local storm report, Jul 5, 3:58 PM CDT, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
358 PM CDT MON JUL 05 2004

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

0348 PM     TSTM WND DMG     BAXTER                  36.15N 85.64W
07/05/2004                   PUTNAM             TN   EMERGENCY MNGR

            TREES DOWN

0358 PM     TSTM WND GST     COOKEVILLE              36.16N 85.51W
07/05/2004  71 MPH           PUTNAM             TN   EMERGENCY MNGR

&&

ROSE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 5, 2:39 PM CDT	Severe Thunderstorm Warning	OHX	Macon	36 min
Jul 5, 2:55 PM CDT	Severe Thunderstorm Warning	OHX	Jackson	35 min
Jul 5, 3:00 PM CDT	Severe Thunderstorm Warning	OHX	Davidson	45 min
Jul 5, 3:04 PM CDT	Severe Thunderstorm Warning	OHX	Trousdale	26 min
Jul 5, 3:12 PM CDT	Severe Thunderstorm Warning	OHX	Clay, Macon, Smith	33 min
Jul 5, 3:17 PM CDT	Severe Thunderstorm Warning	OHX	Putnam	13 min
Jul 5, 3:30 PM CDT	Severe Thunderstorm Warning	OHX	DeKalb, Jackson, Putnam, Smith	30 min
Jul 5, 3:32 PM CDT	Severe Thunderstorm Warning	OHX	White	28 min
Jul 5, 3:42 PM CDT	Severe Thunderstorm Warning	OHX	Pickett	33 min
Jul 5, 3:54 PM CDT	Severe Thunderstorm Warning	OHX	Putnam	51 min
Jul 5, 4:00 PM CDT	Severe Thunderstorm Warning	OHX	DeKalb	60 min
Jul 5, 4:12 PM CDT	Severe Thunderstorm Warning	OHX	Cannon	63 min
Jul 5, 4:17 PM CDT	Flash Flood Warning	OHX	Putnam	118 min
Jul 5, 4:22 PM CDT	Flash Flood Warning	OHX	Pickett	113 min
Jul 5, 4:43 PM CDT	Flash Flood Warning	OHX	Cumberland	2 hr
Jul 5, 4:51 PM CDT	Severe Thunderstorm Warning	OHX	Grundy, Warren	24 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.