Alert archive / Louisiana / Freeze Warnings in 2011

Freeze Warning 5, NWS Lake Charles, LA

January 11, 2011Saint Martin Parish, Louisiana

NWS Lake Charles, LA issued this freeze warning at Jan 11, 2011, 4:15 AM CST for Saint Martin Parish, Louisiana. It took effect at Jan 12, 2011, 1:00 AM CST. It was in force for . No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jan 11, 2011, 4:15 AM CST (10:15 UTC)
In effect from
Jan 12, 2011, 1:00 AM CST
Expired
Jan 11, 2011, 2:43 PM CST
In force
Issued by
NWS Lake Charles, LA

County Saint Martin Parish, LA

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 10.3 hours before the alert went out and 284 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, Jackson, MS at 00:00Z on 2011-01-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 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, Jackson, MS at 00:00Z on 2011-01-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 84 square meters per square second.1939587897Sfc1 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
1 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
556 m above ground
0-6 km bulk shear
80 kt
0-1 km storm-relative helicity
84 m²/s²
0-3 km storm-relative helicity
205 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 freeze 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 freeze warning went out at Jan 10, 3:48 PM CST, 12 hours 27 minutes earlier.

Area forecast discussion, Jan 10, 3:48 PM CST, 12 hours 27 minutes before
<!doctype html>
<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.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Hazardous weather outlook, Jan 10, 5:07 AM CST, 23 hours 8 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LAKE CHARLES LA
507 AM CST MON JAN 10 2011

LAZ027>033-041>045-051>055-TXZ180>182-201-215-216-111215-
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-
507 AM CST MON JAN 10 2011

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

.DAY ONE...TODAY AND TONIGHT
CLOUDY AND COLD CONDITIONS CAN BE EXPECTED TODAY. A COLD FRONT
WILL PUSH ACROSS THE FORECAST AREA LATE TONIGHT WITH A MUCH DRIER
AIR MASS EXPECTED BEHIND IT. THIS WILL HELP SCATTER OUT THE LOW
CLOUDS...WHICH IN TURN MAY HELP LOWER TEMPERATURES TO NEAR OR JUST
BELOW FREEZING FOR AREAS NORTH OF INTERSTATE 10.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY
A VERY COLD CANADIAN HIGH PRESSURE SYSTEM WILL BUILD INTO THE
REGION ON TUESDAY. COLD CONDITIONS WITH THIS SYSTEM ARE EXPECTED
TO PERSIST THROUGH THURSDAY. THE COLDEST NIGHT DURING THIS PERIOD
IS EXPECTED ON TUESDAY NIGHT/WEDNESDAY MORNING...WHEN A HARD
FREEZE WILL BE LIKELY FOR AREAS ALONG AND NORTH OF INTERSTATE
10...AND A LIGHT FREEZE ALL THE WAY TO THE COAST.

ANOTHER LIGHT TO HARD FREEZE WILL BE POSSIBLE ON WEDNESDAY
NIGHT/THURSDAY MORNING...HOWEVER A THICK MID AND UPPER LEVEL CLOUD
DECK IS FORECAST TO DEVELOP WHICH WILL HAVE AN AFFECT ON JUST HOW
LOW THE TEMPERATURES WILL BE AND THE DIFFERENCE BETWEEN A LIGHT TO
HARD FREEZE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

GMZ430-432-435-450-452-455-470-472-475-111215-
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-
507 AM CST MON JAN 10 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE NORTHWEST
GULF OF MEXICO.

.DAY ONE...TODAY AND TONIGHT
A COLD FRONT WILL MOVE ACROSS THE COASTAL WATERS LATE TONIGHT.
NORTHERLY WINDS WILL INCREASE BEHIND THE FRONT WITH SMALL CRAFT
EXERCISE CAUTION LIKELY AFTER MIDNIGHT.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY
THE STRONG NORTHERLY WINDS WILL PERSIST THROUGH THURSDAY AS A COLD
HIGH PRESSURE SYSTEM BUILDS IN. A SMALL CRAFT ADVISORY WILL BE
LIKELY FOR THE COASTAL WATERS...ESPECIALLY BEYOND 20 NM...FROM
TUESDAY INTO EARLY THURSDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

RUA

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 11, 4:15 AM CSTHard Freeze WarningLCHAllen, Avoyelles, Beauregard, Evangeline, Lafayette, Rapides and 3 more29 hr
Jan 11, 8:51 AM CSTLow Water AdvisoryLCH27 hr

Nearby

Freeze Warnings in Louisiana, 2011Every freeze warning in 2011

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.