Alert archive / Tennessee / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 150, NWS Nashville, TN
NWS Nashville, TN issued this severe thunderstorm warning at Jun 3, 1999, 7:24 PM CDT for Benton County, Humphreys County, Perry County, Tennessee. It was in force for 36 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
- Jun 3, 1999, 7:24 PM CDT (00:24 UTC)
- Expired
- Jun 3, 1999, 8:00 PM CDT
- In force
- 36 min
- Issued by
- NWS Nashville, TN
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Benton County, TN, Humphreys County, TN, Perry County, TN
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 0.4 hours before the alert went out and 119 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.
- Mixed-layer CAPE
- 1157 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 1408 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 122 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.3
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 Jun 3, 2:05 PM CDT, 5 hours 19 minutes earlier.
Area forecast discussion, Jun 3, 2:05 PM CDT, 5 hours 19 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NASHVILLE TN 205 PM CDT THU JUN 03 1999 CURRENT...SOME SCATTERED CONVECTION SW PORTIONS WITH TEMPS 85-90 AND LIGHT WINDS. FORECAST...IT/S GETTING TO BE THAT TIME OF YEAR WHEN WEAK FEATURES IN ATMOSPHERE CAN MAKE OR BREAK A FORECAST. JUICY AIRMASS AND PROBABLE LEFTOVER SFC BOUNDARIES KICKED OFF ACTIVITY TODAY...AND NEXT FEW DAYS WILL BE A HEADACHE FOR MORE OF SAME...WEAK IMPULSES IN UPPER FLOW AIDING AND ABETTING SFC INSTABILITY AND OUTFLOW BOUNDARIES. IMPULSES WILL BE RIDING OVER H5 RIDGE W/ TIMING FOR US BEST TONITE. BUT...OF COURSE...MODELS (INCREASINGLY OVER LAST RUN) INSIST ON GREATEST PCPN DURING DAY FRI. WILL OPT FOR 20-30% POPS FOR TONITE AND FRI...AND JUST WARM AND MUGGY FRI NITE AND SAT. ANY MCS THAT FORMS TO OUR W-NW WILL FOLLOW THICKNESS GRADIENT AND MOVE TO SE...SO THREAT IS THERE FOR US TONIGHT. AXIS OF H5 RIDGE STAYS PUT JUST TO W OF US THRU 48 HOURS SO LITTLE RELIEF IN SIGHT FROM SUMMER-LIKE WEATHER. AS FOR TEMPS...GUIDANCE LOOKS FINE TO ME...PRETTY MUCH PERSISTENCE. BNA BB 069/089 069/091 231 CSV BB 062/084 063/085 231 MAG
The office that day
Everything else NWS Nashville, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 3, 7:24 PM CDT | Severe Thunderstorm Warning | OHX | Decatur | 36 min |
| Jun 4, 12:56 PM CDT | Severe Thunderstorm Warning | OHX | Lincoln | 34 min |
| Jun 4, 1:56 PM CDT | Severe Thunderstorm Warning | OHX | Franklin | 34 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 1999Every severe thunderstorm warning in 1999
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.