Alert archive / Mississippi / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 117, NWS Memphis, TN
NWS Memphis, TN issued this severe thunderstorm warning at Apr 21, 1997, 7:01 PM CDT for Chickasaw County, Clay County, Mississippi. It was in force for 64 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Apr 21, 1997, 7:01 PM CDT (00:01 UTC)
- Expired
- Apr 21, 1997, 8:05 PM CDT
- In force
- 64 min
- Issued by
- NWS Memphis, TN
- Area
- Whole counties
Counties Chickasaw County, MS, Clay County, MS
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 21, 7:25 PM CDT | Hail 1.75 | Woodland, MS | |
| Apr 21, 7:45 PM CDT | Hail 1.75 | Pheba, MS |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 21, 6:30 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Little Rock, AR (KLZK), launched 00:00Z, 0.0 hours before the alert went out and 153 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
- 650 J/kg
- Mixed-layer CIN
- -150 J/kg
- Mixed-layer LCL
- 1227 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 193 m²/s²
- 0-3 km storm-relative helicity
- 283 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.1
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 21, 3:40 PM CDT, 3 hours 21 minutes before
TNZ008>016-021-022-024>041-049-050-052>102-212115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MEMPHIS TN 340 PM CDT MON APR 21 1997 ...SEVERE WEATHER THREAT HAS ENDED OVER SOUTHWEST TENNESSEE... THE THREAT OF SEVERE WEATHER HAS ENDED FOR THE EXTREME SOUTHWEST PART OF TENNESSEE. SEVERE THUNDERSTORM WATCH NUMBER 166 IS NO LONGER IN EFFECT FOR THE FOLLOWING COUNTIES IN SOUTHWEST TENNESSEE SHELBY...TIPTON...FAYETTE...HAYWOOD...HARDEMAN AND MADISON. SEVERE THUNDERSTORM WATCH NUMBER 166 REMAINS IN EFFECT FOR PARTS OF WEST AND MUCH OF MIDDLE TENNESSEE UNTIL 8 PM CDT. SEVERE THUNDERSTORM WATCH NUMBER 167 REMAINS IN EFFECT FOR A LARGE PART OF EAST TENNESSEE UNTIL 9 PM EDT/8 PM CDT. STAY TUNED TO THIS STATION FOR LATER STATEMENTS.
Special weather statement, Apr 21, 3:41 PM CDT, 3 hours 20 minutes before
TNZ008>016-021-022-024>041-049-050-052>102-212115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MEMPHIS TN 340 PM CDT MON APR 21 1997 ...SEVERE WEATHER THREAT HAS ENDED OVER SOUTHWEST TENNESSEE... THE THREAT OF SEVERE WEATHER HAS ENDED FOR THE EXTREME SOUTHWEST PART OF TENNESSEE. SEVERE THUNDERSTORM WATCH NUMBER 166 IS NO LONGER IN EFFECT FOR THE FOLLOWING COUNTIES IN SOUTHWEST TENNESSEE SHELBY...TIPTON...FAYETTE...HAYWOOD...HARDEMAN AND MADISON. SEVERE THUNDERSTORM WATCH NUMBER 166 REMAINS IN EFFECT FOR PARTS OF WEST AND MUCH OF MIDDLE TENNESSEE UNTIL 8 PM CDT. SEVERE THUNDERSTORM WATCH NUMBER 167 REMAINS IN EFFECT FOR A LARGE PART OF EAST TENNESSEE UNTIL 9 PM EDT/8 PM CDT. STAY TUNED TO THIS STATION FOR LATER STATEMENTS.
Nearby
Severe Thunderstorm Warnings in Mississippi, 1997Every severe thunderstorm warning in 1997
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.