Alert archive / Tennessee / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 378, NWS Nashville, TN
NWS Nashville, TN issued this severe thunderstorm warning at Jul 31, 1998, 12:08 AM CDT for Putnam County, White County, Tennessee. It was in force for 32 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 31, 1998, 12:08 AM CDT (05:08 UTC)
- Expired
- Jul 31, 1998, 12:40 AM CDT
- In force
- 32 min
- Issued by
- NWS Nashville, TN
- Area
- Whole counties
Counties Putnam County, TN, White County, TN
The radar
The Nashville radar (KOHX), 101 km from the middle of the area, began a volume at 05:08 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 00:00Z, 5.1 hours before the alert went out and 102 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
- 1975 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 923 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 129 m²/s²
- 0-3 km storm-relative helicity
- 217 m²/s²
- Significant tornado parameter
- 1.4
- Supercell composite
- 7.6
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 Jul 30, 7:16 PM CDT, 4 hours 52 minutes earlier.
Area forecast discussion, Jul 30, 7:16 PM CDT, 4 hours 52 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NASHVILLE TN 716 PM CDT THU JUL 30 1998 MCS DVLPG OVR SE MO/W KY LAST CPL OF HOURS. MANY PARAMETERS POINT TWD CONTD DVLPMT ERY TNGT. ADAP PGM SHOWS MOST UNSTBL AIR ACRS W TN INTO SE MO/W KY...WITH BULLS-EYE POS MSTR CONVERGENCE CHG SAME AREA...ETC. ALSO S/WV INDICATED BY 18Z RUC MDL MOVG E ACRS AREA TNGT. THKNS PATTERN AND PCGRIDDS MACRO SUGGEST MCS SHUD TURN TO SE...BUT MOV RATHER SLOLY TNGT. HI SFC AND 850 MB DWPTS/HI PRECIPITABLE WATER INDICATE POTENTIAL FOR VRY HVY RAINFALL TOO. LOOKS LIKE ETA MDL WITH ITS SLGTLY SLOWER SWD MOVMT OF FNT BEST THIS EVE THAN SLGTLY FASTER MOVMT PER NGM. FNT SHUD SLIP TO S OF BNA BY DAYBREAK FRI. STEIGERWALDT
In the hours before
Local storm report, Jul 30, 9:41 PM CDT, 2 hours 27 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TENNESSEE
941 PM CDT THU JUL 30 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0845 PM TN WIND DAMAGE
07/30/98 HOUSTON TREES BLOWN DOWN 5 MILES
SOUTH OF ERIN AND 3 NORTH
OF MCKINNON. REPORTED BY
LOCAL LAW ENFORCEMENT.
BOYDLocal storm report, Jul 30, 9:41 PM CDT, 2 hours 27 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TENNESSEE
941 PM CDT THU JUL 30 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0845 PM TN WIND DAMAGE
07/30/98 HOUSTON TREES BLOWN DOWN 5 MILES
SOUTH OF ERIN AND 3 NORTH
OF MCKINNON. REPORTED BY
LOCAL LAW ENFORCEMENT.
BOYDLocal storm report, Jul 30, 10:42 PM CDT, 1 hour 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TENNESSEE
1042 PM CDT THU JUL 30 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0845 PM TN WIND DAMAGE
07/30/98 HOUSTON TREES BLOWN DOWN 5 MILES
SOUTH OF ERIN AND 3 NORTH
OF MCKINNON. REPORTED BY
LOCAL LAW ENFORCEMENT.
1010 PM TN .88 INCH HAIL
07/30/98 HICKMAN NICKEL SIZE HAIL AT THE
INTERSECTION OF HIGHWAY
100 AND HIGHWAY 46 IN
EASTERN HICKMAN COUNTY.
REPORTED BY LOCAL LAW
ENFORCEMENT.
BOYDLocal storm report, Jul 30, 10:42 PM CDT, 1 hour 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TENNESSEE
1042 PM CDT THU JUL 30 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0845 PM TN WIND DAMAGE
07/30/98 HOUSTON TREES BLOWN DOWN 5 MILES
SOUTH OF ERIN AND 3 NORTH
OF MCKINNON. REPORTED BY
LOCAL LAW ENFORCEMENT.
1010 PM TN .88 INCH HAIL
07/30/98 HICKMAN NICKEL SIZE HAIL AT THE
INTERSECTION OF HIGHWAY
100 AND HIGHWAY 46 IN
EASTERN HICKMAN COUNTY.
REPORTED BY LOCAL LAW
ENFORCEMENT.
BOYDThe office that day
Everything else NWS Nashville, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 8:16 PM CDT | Severe Thunderstorm Warning | OHX | Benton, Houston, Stewart | 49 min |
| Jul 30, 8:42 PM CDT | Severe Thunderstorm Warning | OHX | Lewis | 33 min |
| Jul 30, 9:19 PM CDT | Flash Flood Warning | OHX | Lewis, Perry | 3 hr |
| Jul 30, 9:59 PM CDT | Severe Thunderstorm Warning | OHX | Hickman, Maury, Williamson | 31 min |
| Jul 30, 11:14 PM CDT | Severe Thunderstorm Warning | OHX | Giles, Lawrence | 46 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 1998Every severe thunderstorm warning in 1998
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.