Alert archive / Louisiana / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 77, NWS Lake Charles, LA
NWS Lake Charles, LA issued this severe thunderstorm warning at Feb 26, 1998, 7:30 AM CST for Cameron Parish, Louisiana. It was in force for 60 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
- Feb 26, 1998, 7:30 AM CST (13:30 UTC)
- Expired
- Feb 26, 1998, 8:30 AM CST
- In force
- 60 min
- Issued by
- NWS Lake Charles, LA
- Area
- Whole counties
County Cameron Parish, LA
The radar
The Lake Charles radar (KLCH), 31 km from the middle of the area, began a volume at 13:30 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 |
|---|---|---|---|
| Feb 26, 7:30 AM CST | Thunderstorm Wind | Cameron, LA | |
| Feb 26, 7:58 AM CST | Thunderstorm Wind | Hackberry, LA |
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 |
|---|---|---|---|
| Feb 26, 6:30 AM CST | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 1.5 hours before the alert went out and 30 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
- 428 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 616 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 263 m²/s²
- 0-3 km storm-relative helicity
- 323 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 4.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KLCH 261330 RRA SVRLCH LAC023-261430- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LAKE CHARLES LA 730 AM CST THU FEB 26 1998 THE NATIONAL WEATHER SERVICE IN LAKE CHARLES LA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 830 AM CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHWESTERN LOUISIANA ...CAMERON PARISH AT 730 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM NEAR BEAUMONT TO SEA RIM STATE PARK TO 25 MILES OFFSHORE MOVING EAST AT 45 MPH. THE COMMUNITIES OF JOHNSONS BAYOU...HOLLY BEACH...CAMERON...AND HACKBERRY ARE IN THE PATH OF THIS LINE. EXPECT WIND GUSTS IN EXCESS OF 65 MPH AND DIME SIZE HAIL WITH THIS LINE. SEVERE THUNDERSTORMS PRODUCE WINDS IN EXCESS OF 60 MPH... DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND TORRENTIAL RAIN. FOR YOUR PROTECTION...SEEK SHELTER IN A STRONG BUILDING. STAY AWAY FROM WINDOWS AND AVOID USING TELEP@HONES...COMPUTERS...OR OTHER ELECTRICAL EQUIPMENT UNTIL THE STORM HAS PASSED.
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.
NWS Lake Charles, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Feb 26, 2:20 AM CST, 5 hours 10 minutes earlier.
Area forecast discussion, Feb 26, 2:20 AM CST, 5 hours 10 minutes before
SOUTHEAST TEXAS..SOUTHWEST AND CENTRAL LOUISIANA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAKE CHARLES LA 220 AM CST THU FEB 26 1998 APPROACHING SQUALL LINE WILL AFFECT N PORTIONS OF FA AND MAY BUILD SOUTHWARD AS IT MOVES EAST. ALTHOUGH CURRENT RADAR TRENDS NOT SHOWING ANY SOUTHWARD BUILDING. SVR WIND GUSTS AND SMALL HAIL A POSSIBILITY AS THE LINE MOVES THROUGH. KLCH VWP SHOWING 45 TO 50 KT SE FLOW AT 2 KFT. LATEST SFC ANALYSIS INDICATING DW PTS IN LOWER 60S AHEAD OF LINE...PROVIDING AN ABUNDANCE OF LLM. SFC LOW WILL WORK NE UP TX COAST LATER THIS MORNING AS SFC TROF PUSHES EAST. KHGX RADAR SHOWING SHOWERS AND THUNDERSTORMS BACK TO THE SW BEHIND THE LINE AS ADDITIONAL ENERGY REMAINS BEHIND LEAD SHRT WV. FOR THIS REASON WILL INCLUDE SCT POPS FOR BPT AREA FOR MORN ACTIVITY. IN AGREEMENT WITH 94E...WHICH SHOWS FLASH FLOOD THREAT IN CEN LA AND NORTHWARD WHICH IS IN AXIS OF BEST DYNAMICS COUPLED WITH DEEP MOISTURE. DRYING WILL OCCUR BEHIND SFC TROF LATER THIS AFT. S PORTIONS OF LA WILL LIKELY SEE BEST RAIN CHC LATER IN THE MORNING AS PACIFIC FRONT MOVES THROUGH. HIGH TEMPS SHOULD MAKE IT INTO THE 70S IN BREEZY W FLOW THIS AFT. ANOTHER SFC TROF WILL APPROACH NW PORTIONS OF FA FRIDAY NIGHT AND MAY ACT AS FOCUS FOR A FEW SHWRS IF ENOUGH MOISTURE IS PRESENT. 1 BPT 76/43/65 600 LCH 75/44/64 700 LFT 75/45/64 700 AEX 73/42/64 800
In the hours before
Local storm report, Feb 26, 7:30 AM CST, 0 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
730 AM CST THU FEB 26 1998
TIME(CST) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
730 AM JEFFERSON CITY TX 60 MPH TSTM GUST
02/26/98 JEFFERSONThe office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 26, 7:44 AM CST | Severe Thunderstorm Warning | LCH | Calcasieu | 46 min |
| Feb 26, 8:15 AM CST | Severe Thunderstorm Warning | LCH | Jefferson Davis | 60 min |
| Feb 26, 8:18 AM CST | Severe Thunderstorm Warning | LCH | Rapides | 62 min |
| Feb 26, 8:43 AM CST | Severe Thunderstorm Warning | LCH | Acadia, Evangeline, Saint Landry | 62 min |
| Feb 26, 9:06 AM CST | Tornado Warning | LCH | Avoyelles, Evangeline | 64 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 1998Every severe thunderstorm warning in 1998
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.