Alert archive / Tennessee / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 253, NWS Nashville, TN

July 30, 2000Coffee County, Franklin County, Grundy County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Jul 30, 2000, 4:30 PM CDT for Coffee County, Franklin County, Grundy County, Tennessee. It was in force for 30 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jul 30, 2000, 4:30 PM CDT (21:30 UTC)
Expired: Jul 30, 2000, 5:00 PM CDT
In force: 30 min
Issued by: NWS Nashville, TN
Area: Whole counties

Counties Coffee County, TN, Franklin County, TN, Grundy County, TN

What was reported inside it

Time	Report	Where	Remark
Jul 30, 4:30 PM CDT	Thunderstorm Wind 55 E	Decherd, TN	Decherd fire department reported trees blown down near intersection of U.S. Highway 41A and 127.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 9.5 hours before the alert went out and 105 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: 240 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 578 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 107 m²/s²
0-3 km storm-relative helicity: 92 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 
WUUS54 KOHX 302131
SVRBNA
TNC031-051-061-302200-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
430 PM CDT SUN JUL 30 2000

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN COFFEE COUNTY IN TENNESSEE
  NORTHEASTERN FRANKLIN COUNTY IN TENNESSEE
  WESTERN GRUNDY COUNTY IN TENNESSEE

* UNTIL 500 PM CDT

* AT 428 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A SEVERE THUNDERSTORM OVER DECHERD...MOVING NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  6 MILES NORTHWEST OF SEWANEE AT 440 PM CDT

DAMAGING WINDS AND HAIL WITH TORRENTIAL RAINFALL ARE #EXPECTED WITH
THIS STORM. TAKE COVER IN A STURDY STRUCTURE UNTIL THE STORM PASSES.

$$

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 30, 1:55 PM CDT, 2 hours 35 minutes earlier.

Area forecast discussion, Jul 30, 1:55 PM CDT, 2 hours 35 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
155 PM CDT SUN JUL 30 2000

LATEST HAND ANALYSIS OF SURFACE CHART SHOWING FRONTAL BOUNDARY
DOWN THROUGH INDIANAPOLIS...PADUCAH...MEMPHIS...PINE BLUFF TO JUST
WEST OF SHREVEPORT. BOUNDARY HASNT MOVED MUCH LAST 12 TO 24 HRS.
VISIBLE SATELLITE SHOWING LOTS OF CLOUDS OVER MY CWA.

UPPER LOW REMAINS PRETTY MUCH IN SAME GENERAL AREA THIS FORECAST PACKAGE
WITH VORT LOBES PINWHEELING AROUND. MOISTURE REMAINS PLENTIFUL ALTHOUGH
SOME DRY SLOTTING TRIES TO OCCUR AT TIMES ONLY TO HAVE MOISTURE FIELD
REPLENISHED.

WILL KEEP POPS RUNNING ENTIRE FORECAST PACKAGE. MAX TEMPS SHOULD STAY
CLOSE TO OR JUST BELOW CLIMATOLOGICAL NORMALS.

PRELIMINARY NUMBERS:
NASHVILLE  69 87 69 88  5433
CROSSVILLE 67 81 64 83  5544

.BNA...NONE.
BOYD
01

In the hours before

Local storm report, Jul 30, 3:43 PM CDT, 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE,TN
343 PM CDT SUN JUL 30 2000

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0100 PM    5 W NASHVILLE             TN   58 MPH TSTM WIND GUST
07/29/00   DAVIDSON

DM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 30, 12:45 AM CDT	Severe Thunderstorm Warning	OHX	Humphreys	30 min
Jul 30, 2:32 PM CDT	Severe Thunderstorm Warning	OHX	Warren	28 min
Jul 30, 5:52 PM CDT	Severe Thunderstorm Warning	OHX	Wilson	23 min
Jul 30, 6:12 PM CDT	Severe Thunderstorm Warning	OHX	Cannon, DeKalb, Wilson	33 min
Jul 30, 6:12 PM CDT	Severe Thunderstorm Warning	OHX	Smith	33 min
Jul 30, 6:33 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland	27 min
Jul 30, 6:51 PM CDT	Severe Thunderstorm Warning	OHX	Clay, Jackson	24 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2000 Every severe thunderstorm warning in 2000

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.