Alert archive / Tennessee / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 243, NWS Nashville, TN

July 28, 2000Macon County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Jul 28, 2000, 3:52 PM CDT for Macon County, Tennessee. It was in force for 38 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: Jul 28, 2000, 3:52 PM CDT (20:52 UTC)
Expired: Jul 28, 2000, 4:30 PM CDT
In force: 38 min
Issued by: NWS Nashville, TN
Area: Whole counties

County Macon County, TN

The radar

The Nashville radar (KOHX), 59 km from the middle of the area, began a volume at 20:56 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 nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 8.9 hours before the alert went out and 69 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: 1258 J/kg
Mixed-layer CIN: -78 J/kg
Mixed-layer LCL: 1356 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 29 m²/s²
0-3 km storm-relative helicity: 42 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.

814 
WUUS54 KOHX 282053
SVRBNA
TNC111-282130-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
352 PM CDT FRI JUL 28 2000

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MACON COUNTY IN MIDDLE TENNESSEE
  THIS INCLUDES THE CITY OF LAFAYETTE

* UNTIL 430 PM CDT

* AT 350 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
SEVERE THUNDERSTORM OVER LAFAYETTE MOVING EAST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL BE...
  2 MILES NORTH OF RED BOILING SPRINGS AT 410 PM CDT

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

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 28, 2:45 PM CDT, 1 hour 7 minutes earlier.

Area forecast discussion, Jul 28, 2:45 PM CDT, 1 hour 7 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
245 PM CDT FRI JUL 28 2000

CURRENT...TEMPS IN MID 80S TO LOWER 90S W/ ISOLATED TSTMS OCCURING
OVER NCNTRL COUNTIES...WARNING JUST ISSUED.

FORECAST...MORE UNSETTLED WEATHER PATTERN INTO WEEKEND AND POSSIBLY
BEYOND AS WE SEE BEST CHANCE FOR RAIN IN A WHILE.  UPPER LVL S/WV
OVER SW MO TONITE WILL MATURE INTO L/WV TROF AND BECOME SW-NE ORIENTED
FROM AR TO GREAT LAKES AND PARK THERE.  CONSEQUENTLY...SURFACE TROF
WILL REMAIN JUST TO OUR W THRU SUN MORNING AT LEAST INCREASING OUR
CHANCES FOR RAIN WITH TIME.

MCS LIKELY TO FORM AGAIN TONITE SOMEWHERE FROM MO-KY BUT NOT LIKLEY
TO AFFECT OUR CWA...EXCEPT MAYBE FAR NW COUNTIES.  WILL KEEP THESE
COUNTIES IN HIGHEST POP S THRU WEEKEND AS IN PROXIMITY TO FRONT.
POPS TOO LOW ON NGM BUT DO LIKE PCPN ALIGNMENT BETTER AS COMPARED TO
ETA WHICH HAS PCPN MAXS TOO FAR E.

AS FOR TEMPS...NGM MOS RIGHT ON.

BNA BT 70/91/71/87 3556
CSV BT 64/85/66/82 2446

.BNA...NONE.

MAG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 27, 7:33 PM CDT	Severe Thunderstorm Warning	OHX	Davidson, Robertson, Sumner	27 min
Jul 27, 8:02 PM CDT	Severe Thunderstorm Warning	OHX	Sumner	28 min
Jul 27, 9:13 PM CDT	Severe Thunderstorm Warning	OHX	Macon	32 min
Jul 28, 2:30 PM CDT	Severe Thunderstorm Warning	OHX	Robertson	60 min
Jul 28, 2:35 PM CDT	Flash Flood Warning	OHX	Robertson	115 min
Jul 28, 3:22 PM CDT	Severe Thunderstorm Warning	OHX	Davidson	23 min
Jul 28, 5:29 PM CDT	Severe Thunderstorm Warning	OHX	Putnam, White	46 min
Jul 28, 5:44 PM CDT	Severe Thunderstorm Warning	OHX	Overton	46 min
Jul 28, 5:55 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Fentress	65 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.