Alert archive / Mississippi / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 175, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Apr 22, 1997, 11:12 AM CDT for Yazoo County, Mississippi. It was in force for 48 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, 11:12 AM CDT (16:12 UTC)
- Expired
- Apr 22, 1997, 12:00 PM CDT
- In force
- 48 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Yazoo County, MS
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 22, 11:40 AM CDT | Thunderstorm Wind 52 | Eden, 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 22, 8:45 AM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 4.2 hours before the alert went out and 59 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
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KJAN 221613 RRA SVRJAN MSC163-221700- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE JACKSON MS 1112 AM CDT TUE APR 22 1997 THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL NOON CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN CENTRAL MISSISSIPPI ...YAZOO COUNTY AT 1112 AM WEATHER SERVICE SHOWED A LINE OF SEVERE THUNDERSTORMS ENTERING WESTERN YAZOO COUNTY...MOVING EAST AT 40 MPH. THE LINE WILL AFFECT YAZOO CITY AND SATARTIA BY 1125 AM. DAMAGING WINDS UP TO 60 MPH ARE LIKELY WITH THIS LINE OF STORMS. A TORNADO WATCH IS ALSO IN EFFECT. REMEMBER SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. < 75
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, 10:00 AM CDT, 1 hour 12 minutes before
MSZ001>082-230400- MISSISSIPPI THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE JACKSON MS 1000 AM CDT TUE APR 22 1997 ...MAIN SEVERE WEATHER THREAT CENTRAL AND SOUTH MISSISSIPPI TODAY... A COLD FRONT EXTENDED FROM NORTHEAST LOUISIANA TO NORTHEAST MISSISSIPPI THIS MORNING. A DEVELOPING LOW PRESSURE SYSTEM OVER TEXAS IS EXPECTED TO TRACK ALONG THE FRONT AND INTENSIFY AS IT MOVES ACROSS MISSISSIPPI. THE AIR MASS ACROSS THE REGION IS VERY UNSTABLE TODAY AND PERSISTENT SOUTHERLY FLOW SOUTH OF THE FRONT WILL MAINTAIN WARM GULF MOISTURE OVER CENTRAL AND SOUTH MISSISSIPPI. THIS WILL RESULT IN THE DEVELOPMENT OF STRONG THUNDERSTORMS OVER THE STATE...PARTICULARLY OVER CENTRAL MISSISSIPPI COUNTIES. THUNDERSTORM OUTFLOWS THAT MOVE SOUTHWARD FROM AFTERNOON STORMS MAY ALSO FOCUS THUNDERSTORM DEVELOPMENT IN SOUTH MISSISSIPPI TODAY. THE MAIN SEVERE WEATHER THREAT WILL BE VERY LARGE HAIL AND DAMAGING WINDS. THE CURRENT WIND FIELDS AND WIND SHEAR ARE NOT VERY STRONG BUT ISOLATED TORNADOES ARE POSSIBLE. SEVERE THUNDERSTORMS ARE POSSIBLE TONIGHT...PARTICULARLY FOR SOUTH MISSISSIPPI. THE SEVERE WEATHER THREAT WILL DIMINISH LATE TONIGHT AS THE LOW PRESSURE SYSTEM MOVES INTO ALABAMA. ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS AND EMERGENCY MANAGEMENT PERSONNEL WILL LIKELY BE REQUIRED TODAY AND TONIGHT.
Special weather statement, Apr 22, 10:03 AM CDT, 1 hour 9 minutes before
MSZ001>082-230400- MISSISSIPPI THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE JACKSON MS 1000 AM CDT TUE APR 22 1997 ...MAIN SEVERE WEATHER THREAT CENTRAL AND SOUTH MISSISSIPPI TODAY... A COLD FRONT EXTENDED FROM NORTHEAST LOUISIANA TO NORTHEAST MISSISSIPPI THIS MORNING. A DEVELOPING LOW PRESSURE SYSTEM OVER TEXAS IS EXPECTED TO TRACK ALONG THE FRONT AND INTENSIFY AS IT MOVES ACROSS MISSISSIPPI. THE AIR MASS ACROSS THE REGION IS VERY UNSTABLE TODAY AND PERSISTENT SOUTHERLY FLOW SOUTH OF THE FRONT WILL MAINTAIN WARM GULF MOISTURE OVER CENTRAL AND SOUTH MISSISSIPPI. THIS WILL RESULT IN THE DEVELOPMENT OF STRONG THUNDERSTORMS OVER THE STATE...PARTICULARLY OVER CENTRAL MISSISSIPPI COUNTIES. THUNDERSTORM OUTFLOWS THAT MOVE SOUTHWARD FROM AFTERNOON STORMS MAY ALSO FOCUS THUNDERSTORM DEVELOPMENT IN SOUTH MISSISSIPPI TODAY. THE MAIN SEVERE WEATHER THREAT WILL BE VERY LARGE HAIL AND DAMAGING WINDS. THE CURRENT WIND FIELDS AND WIND SHEAR ARE NOT VERY STRONG BUT ISOLATED TORNADOES ARE POSSIBLE. SEVERE THUNDERSTORMS ARE POSSIBLE TONIGHT...PARTICULARLY FOR SOUTH MISSISSIPPI. THE SEVERE WEATHER THREAT WILL DIMINISH LATE TONIGHT AS THE LOW PRESSURE SYSTEM MOVES INTO ALABAMA. ACTIVJATION OF STORM SPOTTERS...HAM RADIO OPERATORS AND EMERGENCY MANAGEMENT PERSONNEL WILL LILEY BE REQUIRED TODAY AND TONIGHT.
Special weather statement, Apr 22, 10:04 AM CDT, 1 hour 8 minutes before
MSZ001>082-230400- MISSISSIPPI THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE JACKSON MS 1000 AM CDT TUE APR 22 1997 ...MAIN SEVERE WEATHER THREAT CENTRAL AND SOUTH MISSISSIPPI TODAY... A COLD FRONT EXTENDED FROM NORTHEAST LOUISIANA TO NORTHEAST MISSISSIPPI THIS MORNING. A DEVELOPING LOW PRESSURE SYSTEM OVER TEXAS IS EXPECTED TO TRACK ALONG THE FRONT AND INTENSIFY AS IT MOVES ACROSS MISSISSIPPI. THE AIR MASS ACROSS THE REGION IS VERY UNSTABLE TODAY AND PERSISTENT SOUTHERLY FLOW SOUTH OF THE FRONT WILL MAINTAIN WARM GULF MOISTURE OVER CENTRAL AND SOUTH MISSISSIPPI. THIS WILL RESULT IN THE DEVELOPMENT OF STRONG THUNDERSTORMS OVER THE STATE...PARTICULARLY OVER CENTRAL MISSISSIPPI COUNTIES. THUNDERSTORM OUTFLOWS THAT MOVE SOUTHWARD FROM AFTERNOON STORMS MAY ALSO FOCUS THUNDERSTORM DEVELOPMENT IN SOUTH MISSISSIPPI TODAY. THE MAIN SEVERE WEATHER THREAT WILL BE VERY LARGE HAIL AND DAMAGING WINDS. THE CURRENT WIND FIELDS AND WIND SHEAR ARE NOT VERY STRONG BUT ISOLATED TORNADOES ARE POSSIBLE. SEVERE THUNDERSTORMS ARE POSSIBLE TONIGHT...PARTICULARLY FOR SOUTH MISSISSIPPI. THE SEVERE WEATHER THREAT WILL DIMINISH LATE TONIGHT AS THE LOW PRESSURE SYSTEM MOVES INTO ALABAMA. ACTRIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS AND EMERGENCY MANAGEMENT PERSONNEL WILL LIKELY BE REQUIRED TODAY AND TONIGHT.
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, 11:32 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 |
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.