Alert archive / Texas / Special Weather Statements in 2008

Special Weather Statement, NWS Shreveport, LA

June 21, 2008Sabine County, Texas

NWS Shreveport, LA issued this special weather statement at Jun 21, 2008, 2:08 PM CDT for Sabine County, Texas. It was in force for 52 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 21, 2008, 2:08 PM CDT (19:08 UTC)
Expired: Jun 21, 2008, 3:00 PM CDT
In force: 52 min
Issued by: NWS Shreveport, LA

County Sabine County, TX

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 7.1 hours before the alert went out and 141 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2352 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 798 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 62 m²/s²
0-3 km storm-relative helicity: 93 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.8

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jun 21, 10:46 AM CDT, 3 hours 22 minutes earlier.

Area forecast discussion, Jun 21, 10:46 AM CDT, 3 hours 22 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
1046 AM CDT SAT JUN 21 2008

.DISCUSSION...
A BAND OF SPOTTY SHOWERS AND THUNDERSTORMS CONTINUES TO PUSH
ACROSS DEEP EAST TEXAS THIS MORNING...MAINLY NEAR THE NACOGDOCHES
AND LUFKIN AREA. INCREASED POPS IN THE AREA TO ACCOUNT FOR THIS
ACTIVITY...BUT DO NOT EXPECT THEM TO LAST PAST EARLY AFTERNOON.
ALSO INCREASED AFTERNOON HIGH TEMPERATURES ACROSS THE REGION A
DEGREE OR TWO...BUT ESPECIALLY IN CENTRAL LOUISIANA WHERE UPPER
CLOUD COVER HAS ALREADY LEFT THE AREA...LEAVING NOTHING TO PREVENT
FULL AFTERNOON HEATING. RAISED TEMPS AROUND 4 TO 5 DEGREES THERE.

&&

.AVIATION...
FAIRLY QUIET DAY COMPARED TO THE LAST SEVERAL...JUST A FEW SHRA/ISOL
TSTMS LEFT IN THE NW FLOW...NOW OVER DEEP EAST TX. TEMPO GROUP FOR
KLFK FOR THE NEXT HOUR PLUS.  OTHERWISE...VFR AREAWIDE WITH LIGHT
NORTHERLY SFC FLOW LESS THAN 10 KTS.  ALOFT...WEST TO NORTH FLOW 10
TO 20 KTS IN THE LOW AND MID LEVELS OF THE ATMOSPHERE WILL INCREASE
A BIT THIS AFTERNOON WITH ANOTHER MID LEVEL SHORT WAVE DROPPING SEWD
OVER N OK ATTM...BUT WITHOUT SFC INFLOW SHOULD BE INCONSEQUENTIAL.
UPPER RIDGE BUILDING INTO THE NORTHERN PLAINS BEHIND THE SHORT WAVE
PRECLUDING ANY FURTHER DEVELOPMENT OF THIS SORT.  OUTLOOK...VFR. /24/

&&

.PRELIMINARY POINT TEMPS/POPS...
SHV  92  68  95  69 /   0   0   0   0
MLU  91  69  95  67 /   0   0   0   0
DEQ  90  62  92  59 /   0   0   0   0
TXK  90  65  94  67 /   0   0   0   0
ELD  91  64  95  64 /   0   0   0   0
TYR  91  65  94  69 /   0   0   0   0
GGG  92  66  94  66 /   0   0   0   0
LFK  92  69  94  68 /  20   0   0   0

&&

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

18/24

Hazardous weather outlook, Jun 21, 11:58 AM CDT, 2 hours 10 minutes before

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In the hours before

Special weather statement, Jun 21, 12:02 PM CDT, 2 hours 6 minutes before

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Local storm report, Jun 21, 12:33 PM CDT, 1 hour 35 minutes before

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Special weather statement, Jun 21, 2:08 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 7:13 PM CDT	Special Weather Statement	SHV	Shelby	62 min
Jun 21, 9:23 AM CDT	River Flood Warning	SHV	Franklin, Morris, Titus	49 hr
Jun 21, 12:02 PM CDT	Special Weather Statement	SHV	Nacogdoches	28 min
Jun 21, 12:17 PM CDT	Severe Thunderstorm Warning	SHV	Nacogdoches, San Augustine, Shelby	43 min
Jun 21, 1:21 PM CDT	Severe Thunderstorm Warning	SHV	San Augustine	22 min
Jun 21, 2:34 PM CDT	Severe Thunderstorm Warning	SHV	Sabine	41 min
Jun 20, 7:12 PM CDT	Areal Flood Advisory	SHV	Natchitoches	93 min

Nearby

Special Weather Statements in Texas, 2008 Every special weather statement in 2008

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.