Alert archive / Tennessee / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 285, NWS Nashville, TN

July 25, 2004Van Buren County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Jul 25, 2004, 2:51 PM CDT for Van Buren County, 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 25, 2004, 2:51 PM CDT (19:51 UTC)
Expired: Jul 25, 2004, 3:30 PM CDT
In force: 39 min
Issued by: NWS Nashville, TN
Area: Counties, with a storm outline in the text

County Van Buren County, TN

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 nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 7.9 hours before the alert went out and 111 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: 433 J/kg
Mixed-layer CIN: -119 J/kg
Mixed-layer LCL: 914 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 86 m²/s²
0-3 km storm-relative helicity: 109 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KOHX 251951
SVRBNA
TNC175-252030-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
250 PM CDT SUN JUL 25 2004

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  VAN BUREN COUNTY IN TENNESSEE
  THIS INCLUDES THE CITY OF SPENCER

* UNTIL 330 PM CDT

* AT 250 PM CDT...A SEVERE THUNDERSTORM WAS REPORTED.  THIS STORM WAS
  LOCATED 10 MILES SOUTHWEST OF SPENCER...OR ABOUT 9 MILES EAST OF
  MCMINNVILLE...AND MOVING EAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  SPENCER BY 310 PM CDT

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 3578 8564 3557 8561 3557 8528 3580 8529

$$

07

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 25, 9:55 AM CDT, 4 hours 56 minutes earlier.

Area forecast discussion, Jul 25, 9:55 AM CDT, 4 hours 56 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
955 AM CDT SUN JUL 25 2004

.UPDATED...

AREA OF SHOWERS AND SOME STRONGER STORMS OVER WEST TN AND NW PART OF
MIDDLE TN THIS MORNING APPEAR TO BE ASSOCIATED IN PART WITH A WEAK
SHORT WAVE NOTED ON THE 12Z UPPER AIR MAPS NEAR MEMPHIS. THE SHORT
WAVE WILL MOVE SLOWLY EAST TODAY WHILE AIDING STORM CHANCES ACROSS
MUCH OF MIDDLE TN. UNLIKE SATURDAY...THESE STORMS WILL BE MOVING
NORTHEAST AT A DECENT SPEED DUE TO THE INCREASED SOUTHWESTERLY FLOW
ALOFT...SO ANY PERIODS OF HEAVY RAIN FOR ANY ONE AREA SHOULD BE
PRETTY BRIEF. PRETTY WIDE COVERAGE OF STORMS EXISTED IN THE NW
COUNTIES AT MID MORNING BUT WILL KEEP SAME POPS SINCE MUCH
OF THE PRESENT ACTIVITY WILL MOVE INTO KY BY NOON.

FRONTAL BOUNDARY STILL KIND OF DIFFUSE AND STILL LOCATED ALONG THE
MIDDLE TN/AL BORDER.  INVERTED SFC TROF TO OUR SOUTH SHOULD HELP
DRAG 70+ DEWPOINTS INTO MIDDLE TN FROM THE SE LATER TODAY AND
TONIGHT.

CURRENT FORECAST IS IN VERY GOOD SHAPE. ABOUT THE ONLY CHANGE
ANTICIPATED FOR THE MORNING UPDATE WILL BE TO MASSAGE CLOUD WORDING
FOR THIS AFTERNOON.

&&

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

&&

LV

Hazardous weather outlook, Jul 25, 11:00 AM CDT, 3 hours 51 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
1100 AM CDT SUN JUL 25 2004

TNZ005>011-022>034-056>066-075-077>080-093>095-261030-
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-
1100 AM CDT SUN JUL 25 2004

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE.

.DAY ONE...TODAY AND TONIGHT
NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP TODAY AND
POSSIBLY TONIGHT. MOST THUNDERSTORMS WILL CONTAIN LOCALLY HEAVY
RAIN WHICH WILL SIGNIFICANTLY REDUCE VISIBILITIES. THERE IS A SLIGHT
RISK THROUGH THIS EVENING THAT ISOLATED THUNDERSTORMS COULD PRODUCE
DAMAGING WINDS AND HAIL. ALSO...SIGNIFICANT PONDING OF WATER ON
ROADWAYS AND LOCALIZED URBAN FLOODING IN POOR DRAINAGE AREAS CAN BE
EXPECTED.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY
NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...
ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGERS IS POSSIBLE.

07

In the hours before

Local storm report, Jul 25, 2:36 PM CDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
236 PM CDT SUN JUL 25 2004

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

0234 PM     TSTM WND DMG     5 S MURFREESBORO        35.78N 86.39W
07/25/2004                   RUTHERFORD         TN   LAW ENFORCEMENT

            TREES DOWN

&&

MR

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 25, 1:33 PM CDT	Severe Thunderstorm Warning	OHX	Rutherford	27 min
Jul 25, 1:47 PM CDT	Severe Thunderstorm Warning	OHX	Cannon	43 min
Jul 25, 2:03 PM CDT	Severe Thunderstorm Warning	OHX	Jackson	42 min
Jul 25, 2:14 PM CDT	Severe Thunderstorm Warning	OHX	Warren	46 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.