Alert archive / Tennessee / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 87, NWS Nashville, TN

May 2, 2002Maury County, Williamson County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at May 2, 2002, 3:28 PM CDT for Maury County, Williamson County, Tennessee. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 2, 2002, 3:28 PM CDT (20:28 UTC)
Expired: May 2, 2002, 4:15 PM CDT
In force: 47 min
Issued by: NWS Nashville, TN
Area: Whole counties

Counties Maury County, TN, Williamson County, TN

The radar

The Nashville radar (KOHX), 67 km from the middle of the area, began a volume at 20:25 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.

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 2, 12:30 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 8.5 hours before the alert went out and 54 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: 1583 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 689 m above ground
0-6 km bulk shear: 74 kt
0-1 km storm-relative helicity: 219 m²/s²
0-3 km storm-relative helicity: 391 m²/s²
Significant tornado parameter: 2.3
Supercell composite: 10.4

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KOHX 022028
SVRBNA
TNC119-187-022115-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
325 PM CDT THU MAY 2 2002

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN MAURY COUNTY IN TENNESSEE
  WILLIAMSON COUNTY IN TENNESSEE

* UNTIL 415 PM CDT

* AT 324 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 25 MILES WEST OF FRANKLIN...OR 10 MILES EAST OF
  CENTERVILLE...MOVING EAST AT 65 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  FRANKLIN AROUND 345 PM CDT
  BRENTWOOD AROUND 355 PM CDT
  NOLENSVILLE AROUND 350 PM CDT

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.

$$

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 2, 2:31 PM CDT, 57 minutes earlier.

Area forecast discussion, May 2, 2:31 PM CDT, 57 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
231 PM CDT THU MAY 2 2002

CURRENTLY, FRONT CONTINUES TO EDGE ACROSS THE MID STATE, WITH A
STRONG TEMPERATURE CONTRAST ALONG THE FRONT. IT APPEARS THE SEVERE
THUNDERSTORM WATCH IS NOT GOING TO MATERIALIZE, AS THE LOW-LEVEL
ENVIRONMENT IS JUST NOT UNSTABLE ENOUGH TO SUPPORT WIDESPREAD
CONVECTION. UNLESS SOMETHING BEGINS TO POP DURING THE NEXT HOUR,
PLAN TO CANCEL THE WATCH BEFORE ISSUING THE AFTERNOON ZONE FORECAST
PACKAGE.

MODELS SHOW FRONT STALLING OUT OVER THE TENNESSEE VALLEY TOMORROW,
THEN RETURNING AS A WARM FRONT AS PART OF ANOTHER DEVELOPING LOW
CENTER. MORE CONVECTION IS EXPECTED FRIDAY NIGHT AND INTO SATURDAY
BEFORE THIS SYSTEM FINALLY PULLS EAST. DONT EXPECT MUCH TEMPERATURE
CHANGE, AS THIS NEXT SYSTEM WILL BE MORE MESOSCALE, AND THEREFORE
WONT PULL IN MUCH OF AN AIR MASS CHANGE. LOOKING AHEAD,
TEMPERATURES NEXT WEEK WILL LIKELY REMAIN AROUND NORMAL, WITH
ANOTHER FRONTAL SYSTEM BRINGING A CHANCE OF RAIN TO THE MID STATE
SUNDAY NIGHT AND INTO TUESDAY.

.BNA...SEVERE THUNDERSTORM WATCH ALL MIDDLE TENNESSEE COUNTIES UNTIL
00Z.

ROSE

In the hours before

Local storm report, May 2, 11:47 AM CDT, 3 hours 41 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE,TN
1147 AM CDT THU MAY 2 2002

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

1136 AM    3 SW CELINA               TN   1.25 INCH HAIL
05/02/02   CLAY

1142 AM    0 CELINA                  TN   1.75 INCH HAIL
05/02/02   CLAY

MR

Local storm report, May 2, 12:10 PM CDT, 3 hours 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE,TN
1210 PM CDT THU MAY 2 2002

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

1200 PM    3 NE PICKETT STATE PARK       TN   1.00 INCH HAIL
05/02/02   PICKETT                       REPORTED BY PUBLIC

MED/MR

The office that day

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

Issued	Product	Office	Counties	Lasted
May 2, 11:35 AM CDT	Severe Thunderstorm Warning	OHX	Clay	25 min
May 2, 11:37 AM CDT	Severe Thunderstorm Warning	OHX	Clay	23 min
May 2, 11:38 AM CDT	Severe Thunderstorm Warning	OHX	Clay	22 min
May 2, 11:43 AM CDT	Severe Thunderstorm Warning	OHX	Pickett	32 min
May 2, 3:18 PM CDT	Severe Thunderstorm Warning	OHX	Hickman	27 min
May 2, 3:54 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Marshall	36 min
May 2, 3:57 PM CDT	Severe Thunderstorm Warning	OHX	Rutherford	48 min
May 2, 4:04 PM CDT	Severe Thunderstorm Warning	OHX	Wayne	41 min
May 2, 4:10 PM CDT	Severe Thunderstorm Warning	OHX	Lewis, Maury	50 min
May 2, 4:16 PM CDT	Severe Thunderstorm Warning	OHX	Van Buren, Warren, White	44 min
May 2, 4:25 PM CDT	Severe Thunderstorm Warning	OHX	Coffee	50 min
May 2, 4:33 PM CDT	Severe Thunderstorm Warning	OHX	Lawrence, Wayne	42 min
May 2, 4:54 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland	36 min
May 2, 5:02 PM CDT	Severe Thunderstorm Warning	OHX	Van Buren	28 min
May 2, 5:13 PM CDT	Severe Thunderstorm Warning	OHX	Giles, Lincoln	47 min
May 2, 6:01 PM CDT	Severe Thunderstorm Warning	OHX	Franklin, Lincoln	44 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2002 Every severe thunderstorm warning in 2002

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.