Alert archive / Louisiana / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 120, NWS Lake Charles, LA
NWS Lake Charles, LA issued this severe thunderstorm warning at Sep 21, 2001, 4:54 PM CDT for Iberia Parish, Louisiana. It was in force for 66 min. 1 report came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- Sep 21, 2001, 4:54 PM CDT (21:54 UTC)
- Expired
- Sep 21, 2001, 6:00 PM CDT
- In force
- 66 min
- Issued by
- NWS Lake Charles, LA
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Iberia Parish, LA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 21, 5:15 PM CDT | Hail 0.75 | New Iberia, 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 nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 9.9 hours before the alert went out and 131 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
- 2390 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 749 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
336 WUUS54 KLCH 212155 SVRLCH LAC045-212300- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LAKE CHARLES LA 454 PM CDT FRI SEP 21 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... IBERIA PARISH IN SOUTH CENTRAL LOUISIANA * UNTIL 600 PM CDT * AT 447 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 3 MILES SOUTH OF NEW IBERIA...MOVING NORTH AT 5 MPH. * THIS STORM WILL BE NEAR... NEW IBERIA BY 500 PM CDT SEVERE THUNDERSTORMS PRODUCE WINDS IN EXCESS OF 60 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING AND TORRENTIAL RAIN. CALL 337-477-5285 TO REPORT SEVERE WEATHER TO THE WEATHER SERVICE. LAT...LON 2988 9194 2988 9173 3004 9172 3006 9194
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 Sep 21, 3:51 PM CDT, 1 hour 3 minutes earlier.
Area forecast discussion, Sep 21, 3:51 PM CDT, 1 hour 3 minutes before
SOUTHWEST LOUISIANA AND SOUTHEAST TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAKE CHARLES LA 240 PM CDT FRI SEP 21 2001 STALLED FNT IS DRAPED FM NRN OK AND EXTENDS ACRS CNTRL MO AND INTO THE GREAT LAKES REGION THIS AFTN. SOUTH OF THE FRONT ELONGATED SFC HIGH EXTENDS FM THE APPALACHIANS DOWN INTO NE LA. WHILE CLOSER TO HOME A TROF EXTENDS FM CNTRL TX...NE TO LFK... THEN KICKS ON TO THE EAST. DEW POINTS SOUTH OF THIS LN IN THE LWR 70S WHILE NORTH OF THIS LN THE THEY REMAIN IN THE UPR 60S. 88-D RADAR AT LCH BECMG MORE ACTIVE THIS AFTN W/ SHWRS/TSTMS STARTING TO MOV SOUTH AND INTO VERNON PARISH. ATMOSPHERE REMAINS VERY UNSTABLE AND W/ MID LVL SHRTWV FM THE WEST APPROACHING THE AREA THIS WILL ENHANCE LIFT THRU THE EVE HRS. ATTM BELIEVE THAT A FEW STORMS WILL BECOM SEVERE THRU THE EVE HRS. MOST OF THE PRECIP WILL END BEFORE MIDNIGHT A FEW SHWRS EXPECTED TO LINGER THRU THE OVRNGHT HRS. THE NW GULF WILL RMN IN THE TROPICAL AIR OVR THE WEEKEND WHEN COMBINED W/ INSOLATION DAYTIME HEATING AND MID LVL SUPPORT THIS WILL ENHANCE PRECIP THRU SUNDAY. PRECIP CHCS TO INCR ON SUNDAY AS THE FIRST TO THE SEASONS COLD FRNTS DIVES SOUTH OUT OF CANADA ON SATURDAY MRNG AND LOOKS TO APPROACH THE NW GULF SUNDAY EVE. FRNT LOOKS TO KICK THRU THE AREA DRG THE OVRNGHT HOURS FM SUNDAY NIGHT INTO MONDAY MORNING... W/ EXPECTED LOWS NEAR 60 ALONG THE COAST TO THE MID 50S TWRDS AEX. AS COLDER AIR FILTERS IN WINDS IN THE 15 T0 20 MPH AND GUSTY ON MONDAY. THE REST OF THE WEEK LOOKS TO SHAPE-UP NICELY THEREAFTER. .PRELIM NUMBERS... AEX 68/90/69/88/66/57/81 5536400 BPT 73/90/73/89/70/59/80 6536400 LCH 72/90/72/89/70/59/80 6536400 LFT 71/90/72/89/72/59/80 5636400 .LCH...NONE. K. KUYPER
In the hours before
Special weather statement, Sep 21, 1:19 PM CDT, 3 hours 35 minutes before
LAZ027>033-041>045-051>055-TXZ180>182-201-215-216-212100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LAKE CHARLES LA 119 PM CDT FRI SEP 21 2001 ...A FEW SEVERE THUNDERSTORMS POSSIBLE THIS AFTERNOON... LOCALIZED WIND GUSTS CAPABLE OF KNOCKING DOWN TREE LIMBS AND POWER LINES...ALONG WITH LOCALIZED RAINFALL RATES OF 2 TO 3 INCHES AN HOUR WILL BE POSSIBLE WITH A FEW OF THE THUNDERSTORMS THAT DEVELOP THIS AFTERNOON. THE GREATEST RISK FOR THESE THUNDERSTORMS WILL BE WEST AND SOUTH OF A FORT POLK TO LAFAYETTE LOUISIANA LINE. A MOIST...UNSTABLE AIRMASS AND DAYTIME HEATING WILL COMBINE TO PRODUCE THE POSSIBILITY OF A FEW SEVERE THUNDERSTORMS. INTERESTS SHOULD STAY TUNED TO THE LATEST WEATHER INFORMATION FROM NOAA WEATHER RADIO OR THE LOCAL MEDIA TODAY. 22
The office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 21, 2:09 PM CDT | Severe Thunderstorm Warning | LCH | Vernon | 66 min |
| Sep 21, 2:53 PM CDT | Severe Thunderstorm Warning | LCH | St. Mary | 22 min |
| Sep 21, 3:13 PM CDT | Severe Thunderstorm Warning | LCH | Rapides | 62 min |
| Sep 21, 4:57 PM CDT | Severe Thunderstorm Warning | LCH | Avoyelles | 63 min |
| Sep 21, 5:15 PM CDT | Severe Thunderstorm Warning | LCH | Saint Landry | 60 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 2001Every severe thunderstorm warning in 2001
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.