Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 12, NWS Lake Charles, LA
NWS Lake Charles, LA issued this severe thunderstorm warning at Feb 28, 2001, 6:41 AM CST for Jefferson County, Texas. It was in force for 64 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Feb 28, 2001, 6:41 AM CST (12:41 UTC)
- Expired
- Feb 28, 2001, 7:45 AM CST
- In force
- 64 min
- Issued by
- NWS Lake Charles, LA
- Area
- Whole counties
County Jefferson County, TX
The radar
The Lake Charles radar (KLCH), 95 km from the middle of the area, began a volume at 12:41 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.
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 12:00Z, 0.7 hours before the alert went out and 96 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
- 1563 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 440 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 120 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 2.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KLCH 281242 SVRLCH TXC245-281345- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LAKE CHARLES LA 641 AM CST WED FEB 28 2001 THE NATIONAL WEATHER SERVICE IN LAKE CHARLES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... JEFFERSON COUNTY IN SOUTHEAST TEXAS * UNTIL 745 AM CST * AT 636 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 21 MILES WEST OF NEDERLAND...MOVING EAST AT 25 MPH. * THIS STORM WILL BE NEAR... NEDERLAND BY 720 AM CST PORT NECHES BY 725 AM CST GROVES BY 730 AM CST PORT ARTHUR BY 740 AM CST SEVERE THUNDERSTORMS PRODUCE WINDS IN EXCESS OF 60 MPH...DESTRUCTIVE HAILx...DEADLY LIGHTNING AND TORRENTIAL RAIN. THIS THUNDERSTORM IS CAPABLE OF PRODUCING VERY LARGE HAIL WHICH COULD CAUSE SIGNIFICANT DAMAGE TO PROPERTY. 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 Feb 28, 3:00 AM CST, 3 hours 41 minutes earlier.
Area forecast discussion, Feb 28, 3:00 AM CST, 3 hours 41 minutes before
SOUTHEAST TEXAS AND SOUTHWEST LOUISIANA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LAKE CHARLES LA 300 AM CST WED FEB 28 2001 A COLD FRONT IS SLOWLY MOVING SOUTHEAST JUST OVER THE CENTRAL PORTION OF LOUISIANA THIS MORNING CAUSING A MAJORITY OF THE SHOWERS AND THUNDERSTORMS JUST NORTH OF THE CWA. THE FRONT SHOULD SLOWLY SAG SOUTH CAUSING SHOWERS AND THUNDERSTORMS TO INCREASE THE NEXT COUPLE OF DAYS. DENSE FOG HAS FORMED AND IS PRETTY MUCH SOUTH OF THE COLD FRONT WHICH IS IN THE NORTHERN PORTION OF THE CWA...THEREFORE WILL CONTINUE THE DENSE FOG ADVISORY BUT FOR ONLY THE SOUTHERN TWO-THIRDS OF THE CWA UNTIL MID MORNING. THE LCH SOUNDING LAST NIGHT INDICATED A PWAT OF 1.34 AND A K-INDEX OF 23...WHICH INDICATES THE AIRMASS IS BECOMING MORE MOIST AND UNSTABLE. THE LIFTED INDEX IS A -2.2 WITH A CAPE OF 1865 J/KG INDICATING THE AIRMASS IS UNSTABLE BUT NOT AT A POINT OF WIDESPREAD SEVERE WEATHER. ISOLATED INCIDENCE OF SEVERE WEATHER COULD DEVELOP LATER TODAY. TEMPERATURES WILL CONTINUE TO BE NEAR NORMAL TO SLIGHTLY ABOVE WITH A CONSIDERABLE AMOUNT OF CLOUDINESS EXPECTED. THE FRONT SHOULD SAG FAR ENOUGH SOUTH ON THURSDAY TO INCREASE THE CHANCE FOR SHOWERS EVEN MORE. WINDS WILL BE GENERALLY LIGHT WITH THE FRONT IN THE VICINITY OF SOUTH LOUISIANA. MARINE...BOY035 SHOWED A WIND FROM THE EAST AT 6 KNOTS WITH 2 FOOT SEAS. VERY LITTLE CHANGE IN THE WIND AND SEAS FOR THE NEXT FEW DAYS. A STRONG COLD FRONT WILL MOVE THROUGH THE AREA ON SATURDAY CAUSING POSSIBLE SMALL CRAFT ADVISORY WINDS IN ITS WAKE. LONG TERM...MOISTURE WILL EVEN BE MORE FRIDAY AND SATURDAY AHEAD OF A STRONG COLD FRONT THAT WILL TRACK THROUGH THE AREA ON SATURDAY. A GOOD POSSIBILITY OF SEVERE WEATHER AS THE POLAR AND SUB-TROPICAL JET BOTH CONVERGE OVER THE AREA DURING THE WEEKEND. A CONSIDERABLE AMOUNT OF DRYING WILL TAKE PLACE BY LATE IN THE WEEKEND CAUSING SHOWERS AND THUNDERSTORMS TO END AT THAT TIME. .LCH...DENSE FOG ADVISORY LAZ030>033-041>045-051>055- ... TXZ201-215-216 .ADJUSTED NUMBERS... AEX 65/49/60/50/64 7677 BPT 70/55/65/55/67 6677 LCH 71/55/66/55/68 6677 LFT 71/55/6G6/55/68 6677
The office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 28, 5:50 AM CST | Severe Thunderstorm Warning | LCH | Hardin, Jefferson | 55 min |
Nearby
Severe Thunderstorm Warnings in Texas, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.