Alert archive / Louisiana / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 163, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Apr 22, 1997, 9:10 AM CDT for Morehouse Parish, Louisiana. It was in force for 50 min. 1 report 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 22, 1997, 9:10 AM CDT (14:10 UTC)
- Expired
- Apr 22, 1997, 10:00 AM CDT
- In force
- 50 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Morehouse Parish, LA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 22, 9:40 AM CDT | Thunderstorm Wind | Beekman, LA | Several trees and large limbs were blown down along Highway 142. |
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 22, 8:45 AM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 2.2 hours before the alert went out and 171 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
- 1284 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 525 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 259 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
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 22, 5:05 AM CDT, 4 hours 5 minutes before
ARZ074-075-LAZ007>009-015-016-023>026-MSZ001>067-072>076-078-079- 222200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 505 AM CDT TUE APR 22 1997 ...THREAT OF SEVERE WEATHER FOR MISSISSIPPI...NORTHEAST LOUISIANA AND SOUTHEAST ARKANSAS TODAY... EARLY THIS MORNING A STATIONARY FRONT EXTENDED ACROSS NORTHERN MISSISSIPPI AND ALONG THE ARKANSAS...LOUISIANA BORDER. LOW PRESSURE WILL DEVELOP AND MOVE ALONG THIS FRONT THIS AFTERNOON. THE COMBINATION OF THE LOW PRESSURE SYSTEM MOVING ALONG THE FRONT...A STRONG UPPER LEVEL WEATHER DISTURBANCE APPROACHING THE AREA FROM THE WEST...AND MOIST AND UNSTABLE AIR ACROSS THE REGION...WILL SET THE STAGE FOR SEVERE THUNDERSTORMS ACROSS THE AREA TODAY AND POSSIBLY INTO TONIGHT. SEVERE THUNDERSTORMS HAVE ALREADY BEEN OCCURRING JUST TO THE WEST OF THE AREA OVERNIGHT...AND A SEVERE THUNDERSTORM WATCH IS NOW IN EFFECT FOR ASHLEY COUNTY AR AND MOREHOUSE PARISH LA UNTIL 11 AM. THUNDERSTORMS WILL BE ON THE INCREASE FROM THE WEST ACROSS THE AREA TODAY...AND WILL CONTINUE INTO AT LEAST THE EARLY PART OF TONIGHT. SOME OF THESE STORMS WILL LIKELY BECOME SEVERE. THE MAIN THREAT FROM THIS SEVERE WEATHER EPISODE LOOKS TO BE LARGE HAIL...WITH SOME THREAT FOR DAMAGING WINDS. IN ADDITION...HEAVY RAINFALL WILL OCCUR WITH THE STORMS...AND VERY HEAVY RAINFALL TOTALS MAY OCCUR IN AREAS WHERE SEVERAL THUNDERSTORMS TRAIN ACROSS THE SAME AREA. SOME LOCALIZED FLOODING IS POSSIBLE. PEOPLE THROUGHOUT MISSISSIPPI...NORTHEAST LOUISIANA AND SOUTHEAST ARKANSAS SHOULD KEEP UP TO DATE ON THE WEATHER TODAY AND LISTEN FOR LATER WATCHES OR WARNINGS. HAM RADIO OPERATORS AND EMERGENCY MANAGEMENT PERSONNEL MAY BE REQUIRED TO ASSIST IN THE DETECTION OF SEVERE WEATHER TODAY.
Special weather statement, Apr 22, 5:07 AM CDT, 4 hours 3 minutes before
ARZ074-075-LAZ007>009-015-016-023>026-MSZ001>067-072>076-078-079- 222200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 505 AM CDT TUE APR 22 1997 ...THREAT OF SEVERE WEATHER FOR MISSISSIPPI...NORTHEAST LOUISIANA AND SOUTHEAST ARKANSAS TODAY... EARLY THIS MORNING A STATIONARY FRONT EXTENDED ACROSS NORTHERN MISSISSIPPI AND ALONG THE ARKANSAS...LOUISIANA BORDER. LOW PRESSURE WILL DEVELOP AND MOVE ALONG THIS FRONT THIS AFTERNOON. THE COMBINATION OF THE LOW PRESSURE SYSTEM MOVING ALONG THE FRONT...A STRONG UPPER LEVEL WEATHER DISTURBANCE APPROACHING THE AREA FROM THE WEST...AND MOIST AND UNSTABLE AIR ACROSS THE REGION...WILL SET THE STAGE FOR SEVERE THUNDERSTORMS ACROSS THE AREA TODAY AND POSSIBLY INTO TONIGHT. SEVERE THUNDERSTORMS HAVE ALREADY BEEN OCCURRING JUST TO THE WEST OF THE AREA OVERNIGHT...AND A SEVERE THUNDERSTORM WATCH IS NOW IN EFFECT FOR ASHLEY COUNTY AR AND MOREHOUSE PARISH LA UNTIL 11 AM. THUNDERSTORMS WILL BE ON THE INCREASE FROM THE WEST ACROSS THE AREA TODAY...AND WILL CONTINUE INTO AT LEAST THE EARLY PART OF TONIGHT. SOME OF THESE STORMS WILL LIKELY BECOME SEVERE. THE MAIN THREAT FROM THIS SEVERE WEATHER EPISODE LOOKS TO BE LARGE HAIL...WITH SOME THREAT FOR DAMAGING WINDS. IN ADDITION...HEAVY RAINFALL WILL OCCUR WITH THE STORMS...AND VERY HEAVY RAINFALL TOTALS MAY OCCUR IN AREAS WHERE SEVERAL THUNDERSTORMS TRAIN ACROSS THE SAME AREA. SOME LOCALIZED FLOODING IS POSSIBLE. PEOPLE THROUGHOUT MISSISSIPPI...NORTHEAST LOUISIANA AND SOUTHEAST ARKANSAS SHOULD KEEP UP TO DATE ON THE WEATHER TODAY AND LISTEN FOR LATER WATCHES OR WARNINGS. HAM RADIO OPERATORS AND EMERGENCY MANAGEMENT PERSONNEL MAY BE REQUIRED TO ASSIST IN THE DETECTION. OF SEVERE WEATHER TODAY.
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 21, 7:04 PM CDT | Severe Thunderstorm Warning | JAN | Webster | 41 min |
| Apr 21, 7:41 PM CDT | Severe Thunderstorm Warning | JAN | Oktibbeha | 64 min |
| Apr 22, 10:39 AM CDT | Severe Thunderstorm Warning | JAN | Issaquena | 51 min |
| Apr 22, 10:51 AM CDT | Severe Thunderstorm Warning | JAN | Sharkey, Washington | 39 min |
| Apr 22, 11:10 AM CDT | Severe Thunderstorm Warning | JAN | Claiborne | 50 min |
| Apr 22, 11:12 AM CDT | Severe Thunderstorm Warning | JAN | Yazoo | 48 min |
| Apr 22, 11:32 AM CDT | Tornado Warning | JAN | Holmes, Yazoo | 43 min |
| Apr 22, 12:08 PM CDT | Severe Thunderstorm Warning | JAN | Rankin | 52 min |
| Apr 22, 12:32 PM CDT | Severe Thunderstorm Warning | JAN | Scott | 43 min |
| Apr 22, 12:56 PM CDT | Severe Thunderstorm Warning | JAN | Newton | 34 min |
| Apr 22, 1:35 PM CDT | Severe Thunderstorm Warning | JAN | Smith | 40 min |
| Apr 22, 2:40 PM CDT | Severe Thunderstorm Warning | JAN | Claiborne | 50 min |
| Apr 22, 2:52 PM CDT | Severe Thunderstorm Warning | JAN | Copiah | 53 min |
| Apr 22, 3:57 PM CDT | Severe Thunderstorm Warning | JAN | Clarke | 48 min |
| Apr 22, 4:01 PM CDT | Severe Thunderstorm Warning | JAN | Jefferson Davis, Lawrence | 44 min |
| Apr 22, 4:11 PM CDT | Severe Thunderstorm Warning | JAN | Jasper, Smith | 49 min |
| Apr 22, 4:18 PM CDT | Severe Thunderstorm Warning | JAN | Covington, Simpson | 27 min |
| Apr 22, 4:26 PM CDT | Tornado Warning | JAN | Clarke | 34 min |
| Apr 22, 4:33 PM CDT | Severe Thunderstorm Warning | JAN | Lauderdale | 42 min |
| Apr 22, 4:57 PM CDT | Tornado Warning | JAN | Jones | 48 min |
| Apr 22, 5:04 PM CDT | Severe Thunderstorm Warning | JAN | Lawrence | 41 min |
| Apr 22, 5:24 PM CDT | Severe Thunderstorm Warning | JAN | Jefferson Davis, Marion | 66 min |
| Apr 22, 5:45 PM CDT | Severe Thunderstorm Warning | JAN | Lamar | 60 min |
| Apr 22, 5:54 PM CDT | Severe Thunderstorm Warning | JAN | Forrest | 36 min |
| Apr 22, 6:27 PM CDT | Severe Thunderstorm Warning | JAN | Marion | 33 min |
| Apr 22, 6:44 PM CDT | Severe Thunderstorm Warning | JAN | Lamar | 46 min |
| Apr 22, 9:38 AM CDT | Severe Thunderstorm Warning | JAN | Richland | 52 min |
| Apr 22, 9:55 AM CDT | Severe Thunderstorm Warning | JAN | Morehouse | 35 min |
| Apr 22, 10:00 AM CDT | Severe Thunderstorm Warning | JAN | West Carroll | 45 min |
| Apr 22, 10:02 AM CDT | Severe Thunderstorm Warning | JAN | Franklin | 43 min |
| Apr 22, 10:18 AM CDT | Severe Thunderstorm Warning | JAN | Madison | 42 min |
| Apr 22, 10:20 AM CDT | Severe Thunderstorm Warning | JAN | East Carroll | 40 min |
| Apr 22, 10:22 AM CDT | Severe Thunderstorm Warning | JAN | Catahoula | 53 min |
| Apr 22, 10:36 AM CDT | Severe Thunderstorm Warning | JAN | Tensas | 54 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 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.