Alert archive / Tennessee / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 9, NWS Nashville, TN
NWS Nashville, TN issued this severe thunderstorm warning at Apr 3, 1989, 11:38 PM CDT for Humphreys County, Tennessee. It was in force for 67 min.
The area
The counties it named.
The facts
- Issued
- Apr 3, 1989, 11:38 PM CDT (04:38 UTC)
- Expired
- Apr 4, 1989, 12:45 AM CDT
- In force
- 67 min
- Issued by
- NWS Nashville, TN
- Area
- Whole counties
County Humphreys County, TN
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 4.6 hours before the alert went out and 106 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
- 119 J/kg
- Mixed-layer CIN
- -120 J/kg
- Mixed-layer LCL
- 735 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 337 m²/s²
- 0-3 km storm-relative helicity
- 419 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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.
In the hours before
Special weather statement, Apr 3, 10:00 PM CDT, 1 hour 38 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NASHVILLE TN 1000 PM CDT MON APR 3 1989 ...TORNADO WATCH IN EFFECT FOR ALL OF MIDDLE TENNESSEE UNTIL 2 AM CDT... A LINE OF STRONG THUNDERSTORMS MOVING INTO EXTREME NORTHWEST MIDDLE TENNESSEE. WEATHER SERVICE RADAR INDICATED A LINE OF STRONG THUNDERSTORMS JUST ENTERING STEWART AND MONTGOMERY COUNTIES. GUSTY WINDS..FREQUENT LIGHTNING AND HAIL ARE POSSIBLE WITH THE PASSAGE OF THE STRONG THUNDERSTORMS. THE LINE OF THUNDERSTORMS WAS MOVING EAST AT 25 MILES AN HOUR.
Special weather statement, Apr 3, 11:00 PM CDT, 38 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NASHVILLE TN 1100 PM CDT MON APR 3 1989 ...TORNADO WATCH IN EFFECT FOR ALL OF MIDDLE TENNESSEE UNTIL 2 AM CDT... A LINE OF STRONG THUNDERSTORMS IN NORTHWEST MIDDLE TENNESSEE... WEATHER SERVICE RADAR INDICATED A LINE OF STRONG THUNDERSTORMS FROM BOWLING GREEN KENTUCKY SOUTHWEST ACROSS MONTGOMERY AND HOUSTON COUNTIES IN NORTHWEST MIDDLE TENNESSEE AND CONTINUED INTO WEST TENNESSEE TO NEAR JACKSON. THE STRONGEST THUNDERSTORM ACTIVITY WAS IN SOUTHERN MONTGOMERY COUNTY SOUTH OF CLARKSVILLE TENNESSEE. GUSTY WINDS..FREQUENT LIGHTNING AND HAIL ARE POSSIBLE WITH THE PASSAGE OF THE STRONG THUNDERSTORMS. THE LINE OF THUNDERSTORMS WAS MOVING EAST AT 25 MILES AN HOUR.
The office that day
Everything else NWS Nashville, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 3, 11:38 PM CDT | Severe Thunderstorm Warning | OHX | Perry, Wayne | 67 min |
| Apr 4, 12:01 AM CDT | Severe Thunderstorm Warning | OHX | Hickman, Lewis | 44 min |
| Apr 4, 12:24 AM CDT | Tornado Warning | OHX | Lewis, Maury | 36 min |
| Apr 4, 12:52 AM CDT | Tornado Warning | OHX | Rutherford, Wilson | 38 min |
| Apr 4, 1:08 AM CDT | Severe Thunderstorm Warning | OHX | Macon, Smith, Trousdale | 52 min |
| Apr 4, 1:35 AM CDT | Severe Thunderstorm Warning | OHX | Clay, Jackson, Putnam | 40 min |
| Apr 4, 1:40 AM CDT | Tornado Warning | OHX | Cannon, Rutherford, Wilson | 35 min |
| Apr 4, 1:40 AM CDT | Tornado Warning | OHX | DeKalb | 35 min |
| Apr 4, 2:00 AM CDT | Tornado Warning | OHX | White | 45 min |
| Apr 4, 2:14 AM CDT | Severe Thunderstorm Warning | OHX | Warren | 31 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 1989Every severe thunderstorm warning in 1989
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.