Alert archive / Tennessee / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 217, NWS Nashville, TN

May 7, 2003Lewis County, Wayne County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at May 7, 2003, 5:12 AM CDT for Lewis County, Wayne County, Tennessee. It was in force for 33 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: May 7, 2003, 5:12 AM CDT (10:12 UTC)
Expired: May 7, 2003, 5:45 AM CDT
In force: 33 min
Issued by: NWS Nashville, TN
Area: Counties, with a storm outline in the text

Counties Lewis County, TN, Wayne County, TN

The radar

The Nashville radar (KOHX), 123 km from the middle of the area, began a volume at 10:14 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
May 6, 11:50 PM CDT	Tornado Watch	SPC	6 hr
May 7, 4:55 AM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 10.2 hours before the alert went out and 112 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: 1519 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 720 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 92 m²/s²
0-3 km storm-relative helicity: 120 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 3.1

Open this sounding in Storm Lab

The text

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

161 
WUUS54 KOHX 071012
SVRBNA
TNC101-181-071045-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
511 AM CDT WED MAY 7 2003

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LEWIS COUNTY IN TENNESSEE
  NORTHERN WAYNE COUNTY IN TENNESSEE

* UNTIL 545 AM CDT

* AT 510 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 13 MILES SOUTHWEST OF HOHENWALD...OR 7 MILES
  NORTHEAST OF WAYNESBORO...MOVING NORTHEAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  HOHENWALD AROUND 535 AM CDT

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 AM CDT WEDNESDAY MORNING
FOR TENNESSEE. A TORNADO WATCH ALSO REMAINS IN EFFECT UNTIL 1100 AM
CDT WEDNESDAY MORNING FOR TENNESSEE.

&&

LAT...LON 3531 8764 3543 8779 3565 8756 3561 8736
          3554 8731 3549 8738 3540 8758

$$

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 May 7, 2:30 AM CDT, 2 hours 42 minutes earlier.

Area forecast discussion, May 7, 2:30 AM CDT, 2 hours 42 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
230 AM CDT WED MAY 7 2003

CURRENT SURFACE ANALYSIS SHOWING WELL DEFINE TROF AXIS PUSHING ACROSS
THE CWA...WHICH IS STRETCHING THROUGH WAVE ACROSS WEST TN AND UP INTO
CENTRAL IL. COLD FRONT STRETCHES FROM NEAR STL TO DFW. AIRMASS QUITE
UNSTABLE WITH DEWPOINTS AROUND 70. THUNDERSTORMS BREAKING OUT ALL
OVER THE AREA.

SURFACE LOW EXPECTED TO MOVE ACROSS THE SOUTHERN OH VALLEY TODAY...
DRAGGING THE COLD FRONT ACROSS THE CWA 15-21Z OR SO. THIS ALONG WITH
EASTWARD MOVING UPPER SHORTWAVE EXPECTED TO SWEEP DEEP MOISTURE OUT
OF THE AREA LATE THIS AFTERNOON. PREVIOUS TO THIS HOWEVER...EXPECT
WIDESPREAD STRONG/SEVERE THUNDERSTORMS TO CONTINUE INTO THE EARLY
AFTERNOON. WILL CONTINUE FLOOD WATCH THROUGH THIS AFTERNOON WITH
LOCALIZED FLOODING OCCURRING AND FF GUIDANCE BASICALLY AT NIL.

DRY SLOT REMAINS OVER THE AREA TONIGHT AS VERY BRIEF RIDGING SWINGS
BY...DO NOT PLAN ANY POPS EXCEPT FOR SLIGHT CHANCE ALONG THE PLATEAU.

LL BOUNDARIES EXTENDING FROM PLAINS LOWS PUSH BACK ACROSS THE AREA
THURSDAY. ADDED TO A TONGUE OF DEEPER MOISTURE ALONG WITH UPPER
SHORTWAVE IN THE VICINITY...WILL LEAVE CHANCE POPS RUNNING THURSDAY/
THURSDAY NIGHT.

BNA 81/62/80/65 +133
CSV 74/58/81/60 +233

07
.BNA...FLOOD WATCH ALL ZONES THROUGH NOON TODAY.

Hazardous weather outlook, May 6, 5:30 AM CDT, 23 hours 42 minutes before

TNZ005>011-022>034-056>066-075>080-093>097-071030-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NASHVILLE TN
530 AM CDT TUE MAY 6 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR MIDDLE TENNESSEE.

.DAY ONE...TODAY AND TONIGHT
STRONG STORMS WILL CONTINUE TO AFFECT THE MID-STATE AGAIN TODAY
AND TONIGHT. THUNDERSTORMS MAY PRODUCE NOT ONLY ISOLATED TORNADOES
BUT EXTENDED HEAVY RAINS AS WELL. HEAVY RAIN MAY LEAD TO ISOLATED
TO WIDESPREAD FLOODING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
A SERIES OF DISTURBANCE WILL CONTINUE TO BRING SCATTERED SHOWERS
AND THUNDERSTORMS TO THE AREA WEDNESDAY THROUGH FRIDAY. THERE IS
A CHANCE OF LOCALLY SEVERE WEATHER EACH OF THESE DAYS.

.SPOTTER INFORMATION STATEMENT...
SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD REMAIN ALERT
AGAIN TODAY AND TONIGHT FOR POSSIBLE ACTIVATION.

07

In the hours before

Local storm report, May 7, 4:37 AM CDT, 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
0437 AM CDT WED MAY 07 2003

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

0310 AM    GAINESBORO                TN   FLOOD
05/07/03   JACKSON                        MAJOR FLOODING COUNTYWIDE
                                          REPORTED BY LAW
                                          ENFORCEMENT.

MED

Local storm report, May 7, 4:46 AM CDT, 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
0446 AM CDT WED MAY 07 2003

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

0255 AM    LAFAYETTE                 TN   WIND DAMAGE
05/07/03   MACON                          TREES AND POWER LINES DOWN
                                          ACROSS THE COUNTY REPORTED
                                          BY LAW ENFORCEMENT.

MED

Local storm report, May 7, 4:48 AM CDT, 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
0448 AM CDT WED MAY 07 2003

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

0255 AM    6 S LAFAYETTE             TN   FLOOD
05/07/03   MACON                          HIGHWAY 10 SOUTH NEAR
                                          HILLSDALE FLOODED AND
                                          CLOSED REPORTED BY EMA.

MED

Local storm report, May 7, 4:52 AM CDT, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
0452 AM CDT WED MAY 07 2003

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

0300 AM    9 SE LAFAYETTE            TN   AVALANCHE
05/07/03   MACON                          HWY 80 SOUTH NEAR
                                          MACON/SMITH COUNTYLINE
                                          CLOSED DUE TO FLOODING
                                          REPORTED BY LAW
                                          ENFORCEMENT.

MED

Local storm report, May 7, 4:52 AM CDT, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
0452 AM CDT WED MAY 07 2003

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

0300 AM    9 SE LAFAYETTE            TN   FLOOD
05/07/03   MACON                          HWY 80 SOUTH NEAR
                                          MACON/SMITH COUNTYLINE
                                          CLOSED DUE TO FLOODING
                                          REPORTED BY LAW
                                          ENFORCEMENT.

MED

Local storm report, May 7, 5:02 AM CDT, 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TN
0502 AM CDT WED MAY 07 2003

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

0325 AM    LIVINGSTON                TN   WIND DAMAGE
05/07/03   OVERTON                        NUMEROUS TREES AND POWER
                                          LINES DOWN COUNTYWIDE
                                          REPORTED BY LAW
                                          ENFORCEMENT.

MED

The office that day

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

Issued	Product	Office	Counties	Lasted
May 6, 11:16 PM CDT	Severe Thunderstorm Warning	OHX	Franklin, Lincoln	29 min
May 6, 11:42 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Giles, Marshall	33 min
May 6, 11:44 PM CDT	Severe Thunderstorm Warning	OHX	Coffee, Franklin, Moore	46 min
May 6, 11:51 PM CDT	Severe Thunderstorm Warning	OHX	Wayne	39 min
May 6, 11:52 PM CDT	Flash Flood Warning	OHX	Bedford, Coffee, Franklin, Giles, Grundy, Lawrence and 7 more	3 hr
May 6, 11:59 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Hickman, Williamson	31 min
May 7, 12:12 AM CDT	Flash Flood Warning	OHX	Benton, Houston, Humphreys, Montgomery, Stewart	3 hr
May 7, 12:13 AM CDT	Severe Thunderstorm Warning	OHX	Coffee, Grundy, Warren	32 min
May 7, 12:19 AM CDT	Severe Thunderstorm Warning	OHX	Stewart	41 min
May 7, 12:21 AM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Williamson	39 min
May 7, 12:27 AM CDT	Flash Flood Warning	OHX	Cheatham, Davidson, Williamson	3 hr
May 7, 12:38 AM CDT	Flash Flood Warning	OHX	Cannon, DeKalb, Rutherford, Van Buren, Warren, White and 1 more	3 hr
May 7, 12:57 AM CDT	Severe Thunderstorm Warning	OHX	Hickman, Humphreys, Perry	33 min
May 7, 1:05 AM CDT	Flash Flood Warning	OHX	Dickson, Hickman	3 hr
May 7, 1:12 AM CDT	Severe Thunderstorm Warning	OHX	Montgomery	48 min
May 7, 1:20 AM CDT	Severe Thunderstorm Warning	OHX	Macon, Sumner	50 min
May 7, 1:27 AM CDT	Flash Flood Warning	OHX	Robertson, Sumner	3 hr
May 7, 1:29 AM CDT	Severe Thunderstorm Warning	OHX	Hickman, Perry	31 min
May 7, 1:31 AM CDT	Severe Thunderstorm Warning	OHX	Davidson, Wilson	54 min
May 7, 1:46 AM CDT	Flash Flood Warning	OHX	Macon, Smith, Trousdale	3 hr
May 7, 1:48 AM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Dickson, Hickman, Robertson, Williamson	42 min
May 7, 2:22 AM CDT	Severe Thunderstorm Warning	OHX	Sumner	43 min
May 7, 2:28 AM CDT	Severe Thunderstorm Warning	OHX	Macon, Smith, Trousdale, Wilson	47 min
May 7, 2:32 AM CDT	Severe Thunderstorm Warning	OHX	Cannon, Rutherford, Williamson	43 min
May 7, 2:53 AM CDT	Severe Thunderstorm Warning	OHX	Clay, Jackson, Macon, Overton, Putnam, Smith and 1 more	57 min
May 7, 3:01 AM CDT	Flash Flood Warning	OHX	Bedford, Coffee, Franklin, Giles, Grundy, Lawrence and 8 more	3 hr
May 7, 3:30 AM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Fentress, Overton, Pickett	55 min
May 7, 3:37 AM CDT	Severe Thunderstorm Warning	OHX	DeKalb, Van Buren, Warren, White	53 min
May 7, 3:57 AM CDT	Severe Thunderstorm Warning	OHX	Coffee, Grundy	48 min
May 7, 5:05 AM CDT	Flash Flood Warning	OHX	Benton, Cannon, Cheatham, Clay, Cumberland, Davidson and 22 more	6 hr
May 7, 5:48 AM CDT	Severe Thunderstorm Warning	OHX	Lewis, Maury	42 min
May 7, 5:55 AM CDT	Severe Thunderstorm Warning	OHX	Perry	50 min
May 7, 6:12 AM CDT	Flash Flood Warning	OHX	Bedford, Coffee, Franklin, Giles, Grundy, Hickman and 8 more	6 hr
May 7, 6:22 AM CDT	Flash Flood Warning	OHX	Warren	6 hr
May 7, 6:47 AM CDT	Tornado Warning	OHX	Bedford, Rutherford	43 min
May 7, 6:58 AM CDT	Tornado Warning	OHX	Marshall, Williamson	32 min
May 7, 7:31 AM CDT	Severe Thunderstorm Warning	OHX	Hickman	44 min
May 7, 7:35 AM CDT	Tornado Warning	OHX	Cannon, DeKalb, Wilson	25 min
May 7, 7:42 AM CDT	Severe Thunderstorm Warning	OHX	Maury, Williamson	48 min
May 7, 8:00 AM CDT	Severe Thunderstorm Warning	OHX	Putnam	45 min
May 7, 8:03 AM CDT	Severe Thunderstorm Warning	OHX	Rutherford	42 min
May 7, 8:07 AM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson	38 min
May 7, 8:27 AM CDT	Severe Thunderstorm Warning	OHX	Bedford, Marshall	48 min
May 7, 8:52 AM CDT	Severe Thunderstorm Warning	OHX	DeKalb, White	43 min
May 7, 9:15 AM CDT	Severe Thunderstorm Warning	OHX	Coffee	30 min
May 7, 9:18 AM CDT	Severe Thunderstorm Warning	OHX	Bedford	42 min
May 7, 10:50 AM CDT	Flash Flood Warning	OHX	Bedford, Cannon, Cheatham, Clay, Coffee, Cumberland and 25 more	5 hr

Nearby

Severe Thunderstorm Warnings in Tennessee, 2003 Every severe thunderstorm warning in 2003

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.