Alert archive / Louisiana / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 17, NWS Shreveport, LA

February 3, 2006Caldwell Parish, Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Feb 3, 2006, 11:34 AM CST for Caldwell Parish, Louisiana. It was in force for 56 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 3, 2006, 11:34 AM CST (17:34 UTC)
Expired
Feb 3, 2006, 12:30 PM CST
In force
56 min
Issued by
NWS Shreveport, LA
Area
Counties, with a storm outline in the text

County Caldwell Parish, LA

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 5.6 hours before the alert went out and 193 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 12:00Z on 2006-02-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 20 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, Jackson, MS at 12:00Z on 2006-02-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 square meters per square second.1939587897117Sfc1 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
20 J/kg
Mixed-layer CIN
-130 J/kg
Mixed-layer LCL
779 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
119 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 Shreveport, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Feb 3, 10:00 AM CST, 1 hour 34 minutes earlier.

Area forecast discussion, Feb 3, 10:00 AM CST, 1 hour 34 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
1000 AM CST FRI FEB 3 2006

.UPDATE...

SURFACE OBSERVATIONS SHOW COLD FRONT IS STILL IN CENTRAL OK AT
15Z...W/OVERCAST SKIES AHEAD OF IT.  12Z KSHV SOUNDING SHOWS AS
MODERATELY UNSTABLE AIRMASS IN PLACE...W/EMBEDDED -TSRA JUST SW OF
KTYR AND STARTING TO FIRE ELSEWHERE.  WILL UPDATE TO MENTION
THIS...AND ADJUST GRIDS TO CURRENT CONDITIONS.

&&

.PREV DISCUSSION... (ISSUED 442 AM CST FRI FEB 3 2006)

DISCUSSION...

A FRONTAL BOUNDARY JUST NORTH OF I30 THIS MORNING WILL MOVE
THROUGH THE AREA TODAY...AS AN ASSOCIATED UPPER LEVEL TROUGH
SWINGS THROUGH THE MISSISSIPPI VALLEY THIS EVENING. UPPER
LEVEL DISTURBANCES MOVING ALONG AND AHEAD OF THIS BOUNDARY WILL
TRY TO SQUEEZE SOME PRECIPITATION OUT OF THE AIRMASS...BUT LIGHT
RAIN AND SHOWERS MAY BE ALL THAT IS GENERATED ACROSS MUCH OF THE
AREA TODAY. MODELS DO SHOW A SURFACE LOW DEVELOPING AROUND WEST
CENTRAL LOUISIANA THIS MORNING...THIS FEATURE IS EXPECTED TO MOVE
NORTHEAST AHEAD OF THE BOUNDARY THIS AFTERNOON AND EVENING. IF
THIS HAPPENS SHOWER AND THUNDERSTORM ACTIVITY WILL BE OBSERVED
ACROSS PARTS OF NORTHERN LOUISIANA AND SOUTHEAST ARKANSAS THIS
AFTERNOON. GUIDANCE THINKS CLOUDS AND RAIN SHOULD HOLD MAX TEMPS
DOWN WITH APPROACHING FRONT THIS AFTERNOON...SO NO MORE THAN A
TEN DEGREE WARM UP HAS BEEN FORECASTED FOR TODAY. ANOTHER
DISTURBANCE APPROACHES MONDAY PUTTING A SLIGHT CHANCE OF RAIN IN
THE FORECAST...OTHERWISE A MOSTLY DRY FORECAST IS ON TAP THROUGH
MUCH OF THE SEVEN DAY FORECAST.

ELEVEN

&&

.SHV WATCHES/WARNINGS/ADVISORIES...
AR...NONE.
LA...NONE.
OK...NONE.
TX...NONE.
&&

17/44
Hazardous weather outlook, Feb 3, 6:00 AM CST, 5 hours 34 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Feb 3, 10:48 AM CSTSevere Thunderstorm WarningSHVDe Soto42 min
Feb 3, 11:05 AM CSTSevere Thunderstorm WarningSHVRed River40 min
Feb 3, 11:41 AM CSTSevere Thunderstorm WarningSHVNatchitoches34 min
Feb 3, 12:02 PM CSTSevere Thunderstorm WarningSHVWinn43 min
Feb 3, 12:44 PM CSTSevere Thunderstorm WarningSHVCaldwell46 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2006Every severe thunderstorm warning in 2006

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.