Alert archive / Louisiana / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 134, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Apr 5, 1997, 6:03 AM CST for Catahoula Parish, Louisiana. It was in force for 27 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 5, 1997, 6:03 AM CST (12:03 UTC)
- Expired
- Apr 5, 1997, 6:30 AM CST
- In force
- 27 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 12:05 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 |
|---|---|---|---|
| Apr 5, 6:15 AM CST | Thunderstorm Wind | Harrisonburg, LA | Several trees were blown down. |
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 5, 2:30 AM CST | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 0.1 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
- 60 J/kg
- Mixed-layer CIN
- -183 J/kg
- Mixed-layer LCL
- 718 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 409 m²/s²
- 0-3 km storm-relative helicity
- 671 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KJAN 051209 RRA SVRJAN LAC025-051230- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE JACKSON MS 603 AM CST SAT APR 5 1997 THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 630 AM CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHEAST LOUISIANA ...CATAHOULA PARISH AT 603 AM CST DOPPLER RADAR IN JACKSON INDICATED A SEVERE THUNDERSTORM NEAR AIMWELL MOVING EAST NORTHEAST NEAR 50 MPH. THIS STORM WILL LIKELY PRODUCE DAMAGING WINDS IN EXCESS OF 60 MPH. 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 RAP8IDLY CHANGING WEATHER CONDITIONS. < 65
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 5, 6:01 AM CST | Severe Thunderstorm Warning | JAN | Morehouse | 44 min |
| Apr 5, 6:27 AM CST | Severe Thunderstorm Warning | JAN | Franklin, Richland | 33 min |
| Apr 5, 6:44 AM CST | Severe Thunderstorm Warning | JAN | West Carroll | 46 min |
| Apr 5, 6:44 AM CST | Severe Thunderstorm Warning | JAN | Madison | 46 min |
| Apr 5, 6:57 AM CST | Severe Thunderstorm Warning | JAN | East Carroll | 33 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.