Alert archive / Texas / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 7, NWS Lake Charles, LA

February 1, 2009Orange County, Texas

NWS Lake Charles, LA issued this severe thunderstorm warning at Feb 1, 2009, 3:45 PM CST for Orange County, Texas. It was in force for 30 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 1, 2009, 3:45 PM CST (21:45 UTC)
Expired
Feb 1, 2009, 4:15 PM CST
In force
30 min
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon

County Orange County, TX

The radar

The Lake Charles radar (KLCH), 65 km from the middle of the area, began a volume at 21:44 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, 9.8 hours before the alert went out and 67 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 2009-02-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2009-02-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 156 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1156 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
156 m²/s²
0-3 km storm-relative helicity
166 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 1, 10:59 AM CST, 4 hours 46 minutes earlier.

Area forecast discussion, Feb 1, 10:59 AM CST, 4 hours 46 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1059 AM CST SUN FEB 1 2009

.UPDATE...
SCATTERED SHOWERS ARE SPREADING NE ACRS THE AREA THIS MORNING.
RADAR MOSAIC INDICATING A BREAK IN THE PRECIPITATION TO THE
SW...BUT EXPECT MORE SHOWERS AND THUNDERSTORMS TO DEVELOP LATER
THIS AFTERNOON. WATER VAPOR IMAGERY AND UPPER AIR ANALYSIS SHOWS
SHORTWAVE MOVING ACRS THE AREA WITH A 110 TO 120 KNOT JET ENTERING
THE WRN GULF. AT THE SFC...COLD FRONT EXTENDS ACRS CENT OK INTO
WRN TX. AHEAD OF THE FRONT...SRLY WINDS CONTINUE TO USHER IN
WARMER AIR AND MOISTURE. TEMPS AT 16Z RANGE FM LOWER 60S SWRN
ZONES TO MID 50S CENT LA. CURRENT ZONES LOOK TO BE ON TRACK WITH
HIGHS REACHING THE UPPER 60S AND CHC POPS OVER LAND INCREASING TO
LIKELY OVER THE CSTL WATERS WHERE BETTER DYNAMICS EXIST. ONLY
CHANGES WERE TO HOURLY TEMP AND DEWPOINT GRIDS IN KEEPING WITH
CURRENT TRENDS...BUT SEE NO NEED TO UPDATE TEXT PRODUCTS THIS
MORNING. 24

&&

.PREV DISCUSSION... /ISSUED 425 AM CST SUN FEB 1 2009/

DISCUSSION...
PATCHES OF LIGHT RAIN ARE MOVING OUT OF THE COASTAL WATERS AND
FALLING ACROSS THE COASTAL COUNTIES OF SOUTHEAST TEXAS AND
PARISHES OF SOUTHERN LOUISIANA. THIS MOISTURE IS MOVING UP FROM
THE SOUTH TEXAS COAST AROUND THE BACKSIDE OF A HIGH PRESSURE AREA
ANCHORED OVER THE FLORIDA PENINSULA.

SHOWERS WILL CONTINUE AHEAD OF A COLD FRONT THAT WILL MOVE
THROUGH DURING THE EARLY MORNING HOURS ON MONDAY. SHOWERS WILL
INCREASE IN AREA COVERAGE DURING THE AFTERNOON HOURS TODAY WITH
ISOLATED THUNDERSTORMS POSSIBLE ALONG AND SOUTH OF THE I-10
CORRIDOR. TEMPERATURES WILL BE A BIT COOLER THAN YESTERDAY DUE TO
CLOUD COVER AND RAIN COOLED AIR.

DRIER AIR TO SPILL IN BEHIND THE FRONT MONDAY AFTERNOON WITH A
COOL DRY WORK WEEK ON TAP.

LAKE CHARLES RECORDED THE SECOND DRIEST JANUARY WITH .41 INCHES OF
RAINFALL. RECORDS DATE BACK TO 1893. THE DRIEST JANUARY OCCURRED
IN 1928 WITH .37 INCHES.

BEAUMONT REPORTED THE FIFTH DRIEST JANUARY WITH .74 INCHES OF
RAINFALL. RECORDS DATE BACK TO 1915. 1928 WAS BEAUMONTS DRIEST
JANUARY WITH .17 INCHES.

&&

.PRELIMINARY POINT TEMPS/POPS...
KLCH  67  51  59  38  64 /  50  60  30   0   0
KBPT  68  50  60  37  66 /  50  60  30   0   0
KAEX  66  46  55  33  62 /  40  60  40   0   0
KLFT  67  51  59  37  63 /  50  60  50   0   0

&&

.LCH WATCHES/WARNINGS/ADVISORIES...
LA...NONE.
TX...NONE.
GM...NONE.
&&
Hazardous weather outlook, Feb 1, 3:40 AM CST, 12 hours 5 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LAKE CHARLES LA
340 AM CST SUN FEB 1 2009

GMZ430-432-435-450-452-455-470-472-475-LAZ027>033-041>045-051>055-
TXZ180>182-201-215-216-020945-
SABINE LAKE-CALCASIEU LAKE-VERMILION BAY-
COASTAL WATERS FROM CAMERON, LA TO HIGH ISLAND, TX OUT 20 NM-
COASTAL WATERS FROM INTRACOASTAL CITY TO CAMERON, LA OUT 20 NM-
COASTAL WATERS FROM LOWER ATCHAFALAYA RIVER TO INTRACOASTAL CITY,
LA OUT 20 NM-
WATERS FROM CAMERON, LA TO HIGH ISLAND, TX EXTENDING FROM 20 NM
TO 60 NM-
WATERS FROM INTRACOASTAL CITY, LA TO CAMERON, LA EXTENDING FROM
20 NM TO 60 NM-
WATERS FROM LOWER ATCHAFALAYA RIVER TO INTRACOASTAL CITY, LA
EXTENDING FROM 20 NM TO 60 NM-VERNON-RAPIDES-AVOYELLES-BEAUREGARD-
ALLEN-EVANGELINE-ST. LANDRY-CALCASIEU-JEFFERSON DAVIS-ACADIA-
LAFAYETTE-UPPER ST. MARTIN-CAMERON-VERMILION-IBERIA-ST. MARY-
LOWER ST. MARTIN-TYLER-JASPER-NEWTON-HARDIN-JEFFERSON-ORANGE-
340 AM CST SUN FEB 1 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE NORTHWEST
GULF OF MEXICO...CENTRAL LOUISIANA...SOUTH CENTRAL LOUISIANA...
SOUTHWEST LOUISIANA...WEST CENTRAL LOUISIANA AND SOUTHEAST TEXAS.

.DAY ONE...TODAY AND TONIGHT
ISOLATED RAIN SHOWERS THIS MORNING WITH SHOWERS AND ISOLATED
THUNDERSTORMS LATER THIS AFTERNOON AHEAD OF A COLD FRONT THAT
WILL MOVE THROUGH DURING THE OVERNIGHT HOURS TONIGHT. NO HAZARDOUS
WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY
RAIN ENDING BY THE NOON HOUR ON MONDAY WITH DRIER AIR FILTERING
IN DURING THE AFTERNOON HOURS. DRY AND COOL FOR THE REST OF THE
WEEK. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

K. KUYPER

In the hours before

Local storm report, Feb 1, 1:57 PM CST, 1 hour 48 minutes before
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Local storm report, Feb 1, 3:17 PM CST, 28 minutes before
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<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

IssuedProductOfficeCountiesLasted
Feb 1, 3:20 PM CSTSmall Craft AdvisoryLCH36 hr
Feb 1, 3:13 PM CSTSevere Thunderstorm WarningLCHOrange32 min

Nearby

Severe Thunderstorm Warnings in Texas, 2009Every severe thunderstorm warning in 2009

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.