Alert archive / Texas / Special Weather Statements in 2012

Special Weather Statement, NWS Shreveport, LA

July 8, 2012Camp County, Franklin County, Titus County, Texas

NWS Shreveport, LA issued this special weather statement at Jul 8, 2012, 8:09 PM CDT for Camp County, Franklin County, Titus County, Texas. It was in force for 66 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
Jul 8, 2012, 8:09 PM CDT (01:09 UTC)
Expired
Jul 8, 2012, 9:15 PM CDT
In force
66 min
Issued by
NWS Shreveport, LA

Counties Camp County, TX, Franklin County, TX, Titus County, TX

The radar

The Shreveport radar (KSHV), 140 km from the middle of the area, began a volume at 01:11 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

Shreveport, LA (KSHV), launched 00:00Z, 1.2 hours before the alert went out and 146 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, Shreveport, LA at 00:00Z on 2012-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1622 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, Shreveport, LA at 00:00Z on 2012-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -52 square meters per square second.1939Sfc1 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
1622 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
906 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-52 m²/s²
0-3 km storm-relative helicity
-24 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Jul 8, 5:42 PM CDT, 2 hours 27 minutes earlier.

Area forecast discussion, Jul 8, 5:42 PM CDT, 2 hours 27 minutes before
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE SHREVEPORT LA
542 PM CDT SUN JUL 8 2012

.DISCUSSION...
QUICK UPDATE TO RAISE POPS ACROSS THE REGION FOR TONIGHT.
CONSIDERING THE CURRENT CONVECTIVE COVERAGE AND THE POTENTIAL FOR
MORE DEVELOPMENT WITH 2+ HRS OF DAYLIGHT LEFT...40/50 POPS APPEAR
TO BE IN ORDER. WILL RE-EVALUATE AGAIN AT NORMAL UPDATE TIME.
/12/

&&

.PREV DISCUSSION... /ISSUED 230 PM CDT SUN JUL 8 2012/

DISCUSSION...

ADVERTISED RETROGRESSION OF RIDGE TO THE GREAT BASIN UNDERWAY WITH
A NW FLOW REGIME EXPECTED TO RULE THIS NEW WORK WEEK ACROSS THE
ARKLATEX REGION AND SE OK. A WEAK COLD FRONT TO PUSH DOWN INTO NRN
LA AND BECOME STATIONARY THROUGHOUT MUCH OF THIS WEEK.

AS A RESULT...EXPECT TSTMS TO DEVELOP IN EARNEST THROUGHOUT MUCH
OF THIS WEEK WITH STRONG DAYTIME HEATING ALONG WITH OUTFLOW
BOUNDARIES PROVIDING THE TRIGGER FOR TSTMS. PRECIPITABLE WATER
VALUES TO REMAIN AROUND 2 INCHES AS WELL...AND RAINFALL MAY BE
HEAVY AT TIMES FROM THE STRONGER STORMS. NEVERTHELESS...THE RAINS
WILL BE WELCOMED AS WELL AS THE COOLER TEMPERATURES.

AVIATION...

E TX/NRN LA...ALONG AND SOUTH OF I-20...WILL LIKELY SEE THE GREATEST
COVERAGE OF TSTMS AT THE START OF THE 00Z TAF PERIOD. GUSTY
WINDS...TURBULENCE...AND MVFR OR LOWER CIGS/VSBYS SHOULD BE EXPECTED
IN THE VICINITY OF ANY TSTMS. CONVECTION SHOULD GRADUALLY DIMINISH
AFTER SUNSET DUE TO THE LOSS OF DAYTIME HEATING. REDEVELOPMENT WILL
BE POSSIBLE DURING THE OVERNIGHT HOURS AS AN UPPER WAVE OVER LA
INTERACTS WITH AN INVERTED TROUGH EXTENDING FROM DEEP E TX AND INTO
N CNTRL LA/SW AR. TSTMS SHOULD INCREASE IN COVERAGE ONCE AGAIN BY
MONDAY AFTERNOON AS A WEAK COLD FRONT APPROACHES FROM THE NORTH.

EXCEPT DUE TO TSTMS...VFR CONDITIONS SHOULD GENERALLY PREVAIL.
CANNOT RULE OUT SOME PATCHY MVFR CONDITIONS AROUND SUNRISE MONDAY
MORNING...ESPECIALLY AT KELD AND KLFK DUE TO HEAVY RAINFALL OVER THE
LAST 24 HOURS. WIND SPEEDS WILL CONTINUE TO BE 10 KTS OR LESS BUT
DIRECTIONS WILL CONTINUE TO VARY FROM TERMINAL TO TERMINAL DUE TO
WEAK FLOW AND THE PRESENCE OF NUMEROUS OUTFLOW BOUNDARIES FROM THE
CONVECTION. /09/

&&

.PRELIMINARY POINT TEMPS/POPS...
SHV  74  90  74  89  73 /  40  60  40  50  40
MLU  74  87  75  89  73 /  50  60  40  50  50
DEQ  73  90  73  87  69 /  50  50  30  40  30
TXK  74  90  74  88  70 /  50  60  30  40  30
ELD  74  89  73  87  71 /  50  60  30  40  40
TYR  75  90  75  88  71 /  40  60  30  40  40
GGG  74  91  74  88  72 /  40  60  30  40  40
LFK  74  92  76  88  75 /  40  60  40  50  50

&&

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

12
Hazardous weather outlook, Jul 8, 12:00 PM CDT, 8 hours 9 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SHREVEPORT LA
1200 PM CDT SUN JUL 8 2012

ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-TXZ096-
097-108>112-124>126-136>138-149>153-165>167-091100-
ANGELINA-BIENVILLE-BOSSIER-BOWIE-CADDO-CALDWELL-CAMP-CASS-CHEROKEE-
CLAIBORNE-COLUMBIA-DE SOTO-FRANKLIN-GRANT-GREGG-HARRISON-HEMPSTEAD-
HOWARD-JACKSON-LA SALLE-LAFAYETTE-LINCOLN-LITTLE RIVER-MARION-
MCCURTAIN-MILLER-MORRIS-NACOGDOCHES-NATCHITOCHES-NEVADA-OUACHITA-
PANOLA-RED RIVER LA-RED RIVER TX-RUSK-SABINE LA-SABINE TX-
SAN AUGUSTINE-SEVIER-SHELBY-SMITH-TITUS-UNION AR-UNION LA-UPSHUR-
WEBSTER-WINN-WOOD-
1200 PM CDT SUN JUL 8 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL
ARKANSAS...SOUTHWEST ARKANSAS...NORTH CENTRAL LOUISIANA...
NORTHWEST LOUISIANA...SOUTHEAST OKLAHOMA...EAST TEXAS AND
NORTHEAST TEXAS.

.DAY ONE...TODAY AND TONIGHT...

SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS WILL DEVELOP
ACROSS MOST OF THE AREA DURING THIS SUNDAY.  STRONG GUSTY WINDS WILL
BE POSSIBLE IN A FEW OF THE STRONGER STORMS AND MAY RESULT IN TREE
AND POWER LINE DAMAGE.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...

ADDITIONAL SHOWERS AND THUNDERSTORMS ARE EXPECTED FOR THE NEXT
SEVERAL DAYS...WITH STRONG DAYTIME HEATING AND A SERIES OF
DISTURBANCES TRAVELING ACROSS THE AREA.  A FEW STRONGER
THUNDERSTORMS MAY PRODUCE STRONG WIND GUSTS...THAT COULD
RESULT IN TREE AND POWER LINE DAMAGE AS WELL AS LOCALIZED HEAVY
RAINFALL.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF EMERGENCY MANAGEMENT PERSONNEL...AMATEUR RADIO
OPERATORS...AND STORM SPOTTERS IS NOT EXPECTED THROUGH TONIGHT.

VII

In the hours before

Special weather statement, Jul 8, 5:14 PM CDT, 2 hours 55 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
514 PM CDT SUN JUL 8 2012

LAZ002-003-082245-
BOSSIER-WEBSTER-
514 PM CDT SUN JUL 8 2012

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY...EFFECTIVE UNTIL 545 PM CDT...FOR THE FOLLOWING
PARISHES...

IN NORTHWEST LOUISIANA...
     BOSSIER AND WEBSTER...

INCLUDING THE FOLLOWING LOCATIONS...
     COTTON VALLEY...DIXIE INN...DOYLINE...HAUGHTON AND MINDEN...

AT 510 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
DETECTING A STRONG THUNDERSTORM 7 MILES WEST OF DIXIE INN...OR 10
MILES WEST OF MINDEN...MOVING NORTHWEST AT 10 MPH.

WINDS 40 TO 50 MPH ARE EXPECTED WITH THIS STORM. STRONG OUTFLOW
WINDS MAY ARRIVE SEVERAL MINUTES BEFORE THE STORM.

09
Special weather statement, Jul 8, 5:47 PM CDT, 2 hours 22 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
547 PM CDT SUN JUL 8 2012

LAZ001>003-082330-
BOSSIER-CADDO-WEBSTER-
547 PM CDT SUN JUL 8 2012

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY...EFFECTIVE UNTIL 630 PM CDT...FOR THE FOLLOWING
PARISHES...

IN NORTHWEST LOUISIANA...
     CADDO...BOSSIER AND WEBSTER...

INCLUDING THE FOLLOWING LOCATIONS...
     BENTON...BOSSIER CITY...COTTON VALLEY...DIXIE INN...DOYLINE...
     HAUGHTON...SHREVEPORT AND SIBLEY...

AT 544 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
DETECTING A STRONG THUNDERSTORM 10 MILES NORTH OF HAUGHTON...OR 14
MILES NORTHEAST OF BOSSIER CITY...MOVING NORTHWEST AT 5 MPH.

WINDS 40 TO 50 MPH ARE EXPECTED WITH THIS STORM. STRONG OUTFLOW
WINDS ARE BEING PRODUCED BY THIS STORM. THESE OUTFLOW WINDS MAY
ARRIVE SEVERAL MINUTES BEFORE THE STORM.

09
Special weather statement, Jul 8, 6:59 PM CDT, 1 hour 10 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
659 PM CDT SUN JUL 8 2012

TXZ097-112-090100-
BOWIE-CASS-
659 PM CDT SUN JUL 8 2012

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY...EFFECTIVE UNTIL 800 PM CDT...FOR THE FOLLOWING
COUNTIES...

IN NORTHEAST TEXAS...
     CASS AND BOWIE...

INCLUDING THE FOLLOWING LOCATIONS...
     HOOKS...MAUD...NASH...REDWATER...SIMMS...TEXARKANA AND WAKE
     VILLAGE...

AT 648 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
DETECTING A STRONG THUNDERSTORM NEAR NASH...OR NEAR WAKE VILLAGE...
MOVING SOUTHWEST AT 15 MPH.

NICKEL SIZE HAIL...AND WINDS OF 40 TO 50 MPH ARE POSSIBLE WITH THIS
STORM.

12
Local storm report, Jul 8, 7:25 PM CDT, 44 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
725 PM CDT SUN JUL 08 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0654 PM     HAIL             4 W TEXARKANA           33.45N 94.09W
07/08/2012  E1.00 INCH       BOWIE              TX   EMERGENCY MNGR

            STRONG WINDS ESTIMATED AT 50-70 MPH AND NICKEL TO QUARTER
            SIZE HAIL IN NASH

&&

25
Local storm report, Jul 8, 7:27 PM CDT, 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
727 PM CDT SUN JUL 08 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0706 PM     HAIL             1 E LEARY               33.47N 94.19W
07/08/2012  E0.25 INCH       BOWIE              TX   BROADCAST MEDIA

            DIME SIZE HAIL

&&

25
Special weather statement, Jul 8, 8:09 PM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 7:49 PM CDTSevere Thunderstorm WarningSHVBowie, Cass56 min
Jul 9, 2:40 PM CDTAreal Flood AdvisorySHVBowie110 min
Jul 9, 6:02 PM CDTSevere Thunderstorm WarningSHVBowie, Camp, Franklin, Morris, Red River, Titus43 min
Jul 9, 7:54 AM CDTAreal Flood AdvisorySHVDe Soto111 min
Jul 9, 3:37 PM CDTAreal Flood AdvisorySHVCaddo113 min
Jul 9, 5:21 PM CDTFlash Flood WarningSHVColumbia101 min

Nearby

Special Weather Statements in Texas, 2012Every special weather statement in 2012

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.