Alert archive / Louisiana / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 48, NWS Lake Charles, LA

May 24, 2001Avoyelles Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at May 24, 2001, 4:19 PM CDT for Avoyelles Parish, Louisiana. It was in force for 56 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 24, 2001, 4:19 PM CDT (21:19 UTC)
Expired
May 24, 2001, 5:15 PM CDT
In force
56 min
Issued by
NWS Lake Charles, LA
Area
Whole counties

County Avoyelles Parish, LA

The radar

The Ft Polk radar (KPOE), 93 km from the middle of the area, began a volume at 21:20 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

TimeReportWhereRemark
May 24, 4:50 PM CDTHail 1.75Effie, 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, 9.3 hours before the alert went out and 156 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.

Skew-T log-pSkew-T log-p diagram, Lake Charles Mun, LA at 12:00Z on 2001-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lake Charles Mun, LA at 12:00Z on 2001-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
3 J/kg
Mixed-layer CIN
-541 J/kg
Mixed-layer LCL
1749 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
99 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS54 KLCH 242119
SVRLCH
LAC009-242215-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAKE CHARLES LA
419 PM CDT THU MAY 24 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  AVOYELLES PARISH IN CENTRAL LOUISIANA

* UNTIL 515 PM CDT

* AT 414 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 11 MILES NORTHWEST OF EFFIE...MOVING SOUTHEAST
  AT 25 MPH.

* THIS STORM WILL BE NEAR...
  CENTERPOINT BY 425 PM CDT
  EFFIE BY 435 PM CDT
  MARKSVILLE BY 450 PM CDT
  BORDELONVILLE BY 510 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.

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 May 24, 1:58 PM CDT, 2 hours 21 minutes earlier.

Area forecast discussion, May 24, 1:58 PM CDT, 2 hours 21 minutes before
SOUTHEAST TEXAS AND SOUTHWEST LOUISIANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
158 PM CDT THU MAY 24 2001

EARLY THIS AFTERNOON...DEEP MID/UPPER LOW SPINNING OVER SOUTHEAST
IOWA. SURFACE COLD FRONT ORIENTED NORTHEAST TO SOUTHWEST
FROM JUST NORTH OF MONROE...JUST SOUTH OF SHREVEPORT...THEN
SOUTHWEST INTO TEXAS BETWEEN WACO AND AUSTIN. SATELLITE PICS SHOWING
ENHANCED CU/AC ALONG FRONTAL BOUNDARY. ACROSS FCST AREA...SKIES HAVE
REMAINED MOSTLY SUNNY ALLOWING TEMPS TO CLIMB TO FORECASTED HIGHS IN
THE MID 80S.

MODELS IN GOOD AGREEMENT IN MOVING FRONT ACROSS AREA THIS EVENING...
TO NEAR AEX BY 00Z...TO COASTAL PARISHES AROUND 05Z. WHILE BEST
DYNAMICS WILL REMAIN NORTH AND NORTHEAST OF REGION CLOSER TO LOW...
INSTABILITY WILL BE HIGH ACROSS REGION. CAPES GENERALLY RUNNING 2000-
2500 J/KG ALONG AND SOUTH OF INTERSTATE 10 WHERE DEWPOINTS HAVE
RISEN INTO THE MID AND UPPER 60S...DECREASING TO 1000-2000
OVER NORTHERN PORTION OF AREA WHERE DEWPOINTS CONTINUE TO HOLD
IN THE LOW 60S. STEEP MID LEVEL LAPSE RATES CONTINUING...NOTED ON
MODIFIED LCH 12Z SOUNDING.

WITH EXTENT OF INSTABILITY...COMBINED WITH LOW LEVEL CONVERGENCE
AHEAD OF INCOMING FRONT...HAVE OPTED TO BUMP POPS UP TONIGHT FROM
PREVIOUS FORECAST. WILL ALSO INCLUDE SEVERE WORDING IN THE ZONES.

FRONT ROCKETS INTO COASTAL WATERS LATE TONIGHT. SOME DIFFERENCES IN
MODEL SOLUTIONS FOR FRIDAY. WITH AVN/MAV HOLDING ONTO DEEPER
MOISTURE AND PRECIP ACROSS AREA...WHILE NGM AND ETA SHOWING JUST
SOME LINGERING LOW LEVEL MOISTURE. WILL GO WITH MAJORITY SOLUTION
AND MAINTAIN ZERO POPS TOMORROW. WILL KEEP RAIN CHANCE THROUGH THE
WEEKEND HOWEVER...AS EXTENDED MODELS MOVE SEVERAL I3MPULSES ACROSS
REGION AS UPPER LOW MEANDERS OVER UPPER MIDWEST.

.LCH...NONE.

.PRELIM NUMBERS...
AEX 60/80/62/83/63 50032
BPT 64/83/64/85/66 50032
LCH 65/82/65/85/67 50032
LFT 65/82/65/85/66 50032

MARCOTTE

In the hours before

Special weather statement, May 24, 2:44 PM CDT, 1 hour 35 minutes before
LAZ027>033-041>045-051>055-TXZ180>182-201-215-216-250500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
244 PM CDT THU MAY 24 2001

...SEVERE THUNDERSTORMS POSSIBLE THIS EVENING...

A LATE SEASON COLD FRONT AND A WARM...MOIST AND UNSTABLE AIRMASS IN
PLACE OVER THE REGION WILL PROVIDE THE INGREDIENTS FOR SCATTERED
THUNDERSTORMS TO DEVELOP THIS EVENING ACROSS THE REGION.

A FEW OF THESE THUNDERSTORMS COULD BECOME SEVERE...PRODUCING
DAMAGING WINDS AND LARGE HAIL. LOCALIZED FLOODING FROM HEAVY RAINFALL
WILL ALSO BE POSSIBLE WITH THESE STORMS. THE SEVERE STORM THREAT IS
EXPECTED TO END BY MIDNIGHT.

STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST INFORMATION ON THIS
DEVELOPING WEATHER SITUATION.

The office that day

Everything else NWS Lake Charles, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 24, 4:04 PM CDTSevere Thunderstorm WarningLCHRapides41 min
May 24, 4:34 PM CDTSevere Thunderstorm WarningLCHVernon56 min
May 24, 5:09 PM CDTSevere Thunderstorm WarningLCHAvoyelles66 min
May 24, 5:27 PM CDTSevere Thunderstorm WarningLCHVernon48 min
May 24, 5:36 PM CDTSevere Thunderstorm WarningLCHRapides54 min
May 24, 6:27 PM CDTSevere Thunderstorm WarningLCHRapides63 min
May 24, 6:33 PM CDTSevere Thunderstorm WarningLCHAvoyelles57 min
May 24, 6:47 PM CDTSevere Thunderstorm WarningLCHAllen58 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; radar from the NEXRAD Level II archive.