Alert archive / Louisiana / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 121, NWS Lake Charles, LA
NWS Lake Charles, LA issued this severe thunderstorm warning at Jun 5, 1998, 6:48 PM CDT for Vernon Parish, Louisiana. It was in force for 62 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
- Jun 5, 1998, 6:48 PM CDT (23:48 UTC)
- Expired
- Jun 5, 1998, 7:50 PM CDT
- In force
- 62 min
- Issued by
- NWS Lake Charles, LA
- Area
- Whole counties
County Vernon Parish, LA
The radar
The Ft Polk radar (KPOE), 20 km from the middle of the area, began a volume at 23:51 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 |
|---|---|---|---|
| Jun 5, 6:51 PM CDT | Thunderstorm Wind | Anacoco, 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 |
|---|---|---|---|
| Jun 5, 6:15 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 11.8 hours before the alert went out and 110 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
- 2730 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 522 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 138 m²/s²
- Significant tornado parameter
- 1.7
- Supercell composite
- 9.4
The text
As transmitted, in the capitals the NWS used until 2016.
312 WUUS1 KLCH 052347 RRA SVRLCH LAC115-060050- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LAKE CHARLES LA 648 PM CDT FRI JUN 5 1998 THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... VERNON PARISH IN SOUTHWESTERN LOUISIANA * UNTIL 750 PM CDT * AT 646 PM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES NORTHWEST OF LEESVILLE OR 4 MILES WEST OF ANACOCO MOVING SOUTHEAST AT 45 MPH. THE MAIN THREAT FROM THIS STORM WILL BE WINDS IN EXCESS OF 65 MPH AND LARGE HAIL. * THIS STORM CAN BE EXPECTED NEAR... ANACOCO BY 649 PM CDT CANEY BY 650 PM CDT LEESVILLE BY 700 PM CDT NEW LLANO BY 700 PM CDT PICKERING BY 700 PM CDT THIS IS A VERY DANGEROUS STORM. FOR YOUR PROTECTION...SEEK SHELTER IN A STRONG BUILDING. MOVE TO AN INTERIOR ROOM...SUCH AS A CLOSET OR BATHROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. DO NOT STAND BY WINDOWS.
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 Jun 5, 3:02 PM CDT, 3 hours 46 minutes earlier.
Area forecast discussion, Jun 5, 3:02 PM CDT, 3 hours 46 minutes before
SOUTHEAST TEXAS..SOUTHWEST AND CENTRAL LOUISIANA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAKE CHARLES LA 302 PM CDT FRI JUN 5 1998 SLOW MOVG CANADIAN COLD FNT FM S CEN TX TO NE ARK MOVG INTO MOIST AND UNSTABLE AMS. LARGE HAIL PRODUCING TSTMS N OF THE FA IN E TX NOW MOVING INTO WRN LA AND WKNG. SKETCHY STLT IMAGERY SHOWING UPSTREAM OUTFLO BNDRY NR CLL. ETA SHOWING A RIGHT REAR QUAD OF AN H3 JETSTREAK OVR THE AREA EARLY THIS EVE...HWVR AREA UNDERGOING NVA FM DEPARTING S/WV AS WELL AS CAPPING. ADDITIONAL CHCS FOR ELEVATED TSTMS TNITE AS ETA SHOWING STG UPR UVV WITH UPR DIFLUENCE LATER TNITE AS WELL AS THETA RDGG AHEAD OF THE CD FNT WHICH SHUD BE IN THE HOU-MLU AREA BY DAYBREAK. WOULD LIKE TO MENTION PSBL SVR TSTMS TNITE DUE TO THE POTENTIAL WHICH EXISTS AS CD FNT MOVES INTO AMS WITH MID LVL INSTABILITY. BLV NGM IS OVERDOING THE POPS TNITE SO WENT WITH SOMEWHAT LWR POPS TNITE DUE TO AFOREMENTIONED EARLY CAPPING AND NVA. SHUD SEE SOME6 CAPPING KEEPING POPS A BIT LWR ON SAT DESPITE THE FNT WHICH STALLS OVR COASTAL WATERS SAT NITE. 11 BPT 74/89/68/91 4202 LCH 75/88/67/89 4202 LFT 74/86/67/89 4212 AEX 75/85/62/88 5100
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.