Alert archive / Tennessee / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 147, NWS Nashville, TN
NWS Nashville, TN issued this severe thunderstorm warning at Jun 3, 1999, 2:18 PM CDT for Rutherford County, Williamson County, Tennessee. It was in force for 27 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, 2:18 PM CDT (19:18 UTC)
- Expired
- Jun 3, 1999, 2:45 PM CDT
- In force
- 27 min
- Issued by
- NWS Nashville, TN
- Area
- Whole counties
Counties Rutherford County, TN, Williamson County, TN
The radar
The Nashville radar (KOHX), 43 km from the middle of the area, began a volume at 19:20 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, 7.3 hours before the alert went out and 30 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
- 1531 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 689 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 2.7
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, 13 minutes earlier.
Area forecast discussion, Jun 3, 2:05 PM CDT, 13 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 2, 7:09 PM CDT | Severe Thunderstorm Warning | OHX | White | 36 min |
| Jun 2, 7:43 PM CDT | Severe Thunderstorm Warning | OHX | Van Buren, White | 47 min |
| Jun 3, 2:15 PM CDT | Severe Thunderstorm Warning | OHX | Giles | 30 min |
| Jun 3, 2:56 PM CDT | Severe Thunderstorm Warning | OHX | Bedford, Marshall | 34 min |
| Jun 3, 4:16 PM CDT | Severe Thunderstorm Warning | OHX | Franklin | 29 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; radar from the NEXRAD Level II archive.