Alert archive / Louisiana / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 338, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at May 28, 1997, 5:54 PM CDT for Catahoula Parish, Louisiana. It was in force for 51 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
- May 28, 1997, 5:54 PM CDT (22:54 UTC)
- Expired
- May 28, 1997, 6:45 PM CDT
- In force
- 51 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Catahoula Parish, LA
The radar
The Ft Polk radar (KPOE), 121 km from the middle of the area, began a volume at 22:58 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 28, 6:02 PM CDT | Hail 2.75 | Harrisonburg, LA | Numerous automobiles and roofs of houses were damaged by baseball size hail. |
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 nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 10.9 hours before the alert went out and 182 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
- 35 J/kg
- Mixed-layer CIN
- -262 J/kg
- Mixed-layer LCL
- 1091 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
041 WUUS1 KJAN 282257 RRA SVRJAN LAC025-282345- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE JACKSON MS 554 PM CDT WED MAY 28 1997 THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 645 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHEAST LOUISIANA ...CATAHOULA PARISH AT 553 PM...JACKSON DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 4 MILES SOUTHWEST OF HARRISONBURG. THIS STORM WAS DRIFTING NORTH AT 5 MPH AND IS EXPECTED TO REACH HARRISONBURG BY 610 PM. SEVERE THUNDERSTORMS PRODUCE WIND IN EXCESS OF 55 MPH...LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. < 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
Local storm report, May 28, 3:49 PM CDT, 2 hours 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MISSISSIPPI
349 PM CDT WED MAY 28 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0755 PM METCALF MS WIND DAMAGE
05/27/97 WASHINGTON TRAILER DESTROYED...TREES
DOWN
0845 PM RAYVILLE LA WIND DAMAGE
05/27/97 RICHLAND TREES AND POWER LINES DOWN
0845 PM YAZOO CITY MS .75 INCH HAIL
05/27/97 YAZOO TREES DOWN
0945 PM POLKVILLE MS .88 INCH HAIL
05/27/97 SMITH TREES DOWN
1025 PM PELAHATCHIE MS 1 INCH HAIL
05/27/97 RANKIN PEA TO QUARTER SIZE HAIL
1115 PM TERRY MS .75 INCH HAIL
05/27/97 HINDS TREES DOWN
1200 AM HARPERVILLE MS WIND DAMAGE
05/28/97 SCOTT TREES DOWNLocal storm report, May 28, 3:57 PM CDT, 1 hour 57 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MISSISSIPPI
349 PM CDT WED MAY 28 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0755 PM METCALF MS WIND DAMAGE
05/27/97 WASHINGTON TRAILER DESTROYED...TREES
DOWN
0845 PM RAYVILLE LA WIND DAMAGE
05/27/97 RICHLAND TREES AND POWER LINES DOWN
0845 PM YAZOO CITY MS .75 INCH HAIL
05/27/97 YAZOO TREES DOWN
0945 PM POLKVILLE MS .88 INCH HAIL
05/27/97 SMITH TREES DOWN
1025 PM PELAHATCHIE MS 1 INCH HAIL
05/27/97 RANKIN PEA TO QUARTER SIZE HAIL
1115 PM TERRY MS .75 INCH HAIL
05/27/97 HINDS TREES DDOWN
1200 AM HARPERVILLE MS WIND DAMAGE
05/28/97 SCOTT TREES DOWNThe office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 8:20 PM CDT | Tornado Warning | JAN | Richland | 40 min |
| May 27, 8:56 PM CDT | Severe Thunderstorm Warning | JAN | Richland | 34 min |
| May 27, 9:10 PM CDT | Severe Thunderstorm Warning | JAN | East Carroll, Madison | 50 min |
| May 28, 4:00 PM CDT | Severe Thunderstorm Warning | JAN | Concordia | 45 min |
| May 28, 4:18 PM CDT | Flash Flood Warning | JAN | Concordia | 117 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; radar from the NEXRAD Level II archive.