Alert archive / Louisiana / Tornado Warnings in 2008

Tornado Warning 14, NWS Shreveport, LA

March 14, 2008Ouachita Parish, Louisiana

NWS Shreveport, LA issued this tornado warning at Mar 14, 2008, 10:45 PM CDT for Ouachita Parish, Louisiana. It was in force for 30 min. 5 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Mar 14, 2008, 10:45 PM CDT (03:45 UTC)
Expired: Mar 14, 2008, 11:15 PM CDT
In force: 30 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon

County Ouachita Parish, LA

The radar

The Shreveport radar (KSHV), 172 km from the middle of the area, began a volume at 03:47 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.

What was reported inside it

Time	Report	Where	Remark
Mar 14, 10:45 PM CDT	HAIL 1.75	5 Ene Claiborne, LA	GOLFBALL SIZED HAIL FELL FOR 6 MINUTES ON THE EDGE OF MONROE CITY LIMITS.
Mar 14, 10:50 PM CDT	HAIL 0.88	Swartz, LA
Mar 14, 10:53 PM CDT	HAIL 1.5	Swartz, LA
Mar 14, 10:53 PM CDT	HAIL 1.75	5 Ene Monroe, LA	GOLFBALL-SIZED HAIL REPORTED ALONG MILHAVEN AND ROWLAND ROADS.
Mar 14, 10:56 PM CDT	HAIL 1.75	2 E Monroe, LA	GOLFBALL-SIZED HAIL REPORTED AT THE MONROE AIRPORT.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this tornado warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Mar 14, 7:14 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 3.8 hours before the alert went out and 163 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: 1478 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 1885 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 100 m²/s²
0-3 km storm-relative helicity: 250 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 9.9

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KSHV 150346
TORSHV
LAC073-150415-
/O.NEW.KSHV.TO.W.0014.080315T0345Z-080315T0415Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
1045 PM CDT FRI MAR 14 2008

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN OUACHITA PARISH IN NORTH CENTRAL LOUISIANA...
  THIS INCLUDES THE CITIES OF...WEST MONROE...SWARTZ...MONROE...
  CLAIBORNE...BROWNSVILLE-BAWCOMVILLE...

* UNTIL 1115 PM CDT

* AT 1045 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR MONROE...
  MOVING EAST AT 35 MPH.

* THE TORNADO WILL BE NEAR...
  SWARTZ BY 1055 PM CDT...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING GOLF 
BALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

QUARTER SIZED HAIL HAS JUST BEEN REPORTED IN WEST MONROE WITH THIS 
POTENTIALLY TORNADIC THUNDERSTORM. 

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CDT SATURDAY MORNING
FOR SOUTHWESTERN ARKANSAS AND NORTHWESTERN LOUISIANA AND NORTHEAST
TEXAS.

LAT...LON 3271 9196 3255 9189 3240 9197 3249 9226
      3272 9207
TIME...MOT...LOC 0345Z 284DEG 32KT 3253 9208

$$

15

1 follow-up statement

000 
WWUS54 KSHV 150412
SVSSHV

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1111 PM CDT FRI MAR 14 2008

LAC073-150421-
/O.EXP.KSHV.TO.W.0014.000000T0000Z-080315T0415Z/
OUACHITA LA-
1111 PM CDT FRI MAR 14 2008

...THE TORNADO WARNING FOR NORTHEASTERN OUACHITA PARISH EXPIRES AT
1115 PM CDT...

THE POTENTIAL TORNADIC THUNDERSTORM HAS MOVED SOUTHEAST OUT OF 
OUACHITA PARISH AND INTO NORTHERN RICHLAND PARISH. THEREFORE...THE 
TORNADO WARNING WILL BE ALLOWED TO EXPIRE. 

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CDT SATURDAY MORNING
FOR SOUTHWESTERN ARKANSAS AND NORTHWESTERN LOUISIANA AND NORTHEAST
TEXAS.

LAT...LON 3271 9196 3255 9189 3240 9197 3249 9226
      3272 9207
TIME...MOT...LOC 0411Z 284DEG 32KT 3247 9181

$$

15

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at Mar 14, 10:02 PM CDT, 43 minutes earlier.

Area forecast discussion, Mar 14, 10:02 PM CDT, 43 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
1002 PM CDT FRI MAR 14 2008

.DISCUSSION...

HAVE UPDATED THE ZONES TO REFLECT THE CURRENT TORNADO WATCH AND
ONGOING WEATHER. STILL A CHANCE OF MORE SHOWERS AND THUNDERSTORMS
INTO THE OVERNIGHT HOURS MAINLY OVER THE NORTHERN MOST ZONES WITH
SURFACE LOW MOVING ACROSS NORTHERN TEXAS AND OVER THE SOUTHERN
AND CENTRAL PARTS OF ARKANSAS TONIGHT. A SURFACE BOUNDARY REACHING
EAST FROM THE SURFACE LOW INTO NORTHEAST TEXAS...SOUTHWEST
ARKANSAS...AND NORTH CENTRAL LOUISIANA WILL CONTINUE LIFTING TO THE
NORTH AND A TRAILING COLD FRONT FROM THE LOW WILL SPREAD EAST
ACROSS TEXAS AND THROUGH THE FOUR STATE REGION. /06/

&&

.AVIATION...

SEVERE WEATHER DEVELOPED SHORTLY AFTER SUNSET. SEVERE THUNDERSTORMS
WITH LARGE HAIL AND STRONG AND GUSTY WINDS OVER NORTHEAST LOUISIANA
EXTEND NORTH INTO SOUTH CENTRAL ARKANSAS AND ACTIVITY IS MOVING TO
THE EAST AND SOUTHEAST AT 25-30 KTS. IFR CONDITIONS EXPECTED TO
CONTINUE THROUGH SHORTLY AFTER MIDNIGHT THESE AREAS. MEANWHILE OTHER
AREAS WEST OF A NASHVILLE ARKANSAS TO ALEXANDRIA LOUISIANA LINE IS
EXPECTED TO REMAIN VFR THROUGH SUNRISE EXCEPT PATCHY OVC/BKN007-010
BETWEEN 06Z-10Z. OTLK... SATURDAY VFR ALL ARKLATEX AFTER 15Z. /01/

&&

.PRELIMINARY POINT TEMPS/POPS...
SHV  61  77  47  70 /  30   0   0   0
MLU  60  78  46  68 /  50   0   0   0
DEQ  49  68  40  66 /  30  10   0   0
TXK  57  72  45  67 /  30  10   0   0
ELD  59  75  41  68 /  50  10   0   0
TYR  57  75  48  71 /  10   0   0   0
GGG  58  77  45  70 /  10   0   0   0
LFK  61  82  48  74 /  10   0   0   0

&&

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

06/01

Hazardous weather outlook, Mar 14, 12:00 PM CDT, 10 hours 45 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SHREVEPORT LA
1200 PM CDT FRI MAR 14 2008

ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-TXZ096-
097-108>112-124>126-136>138-149>153-165>167-151200-
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 FRI MAR 14 2008

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...

ANOTHER ROUND OF THUNDERSTORMS ARE POSSIBLE TONIGHT...AHEAD OF A
COLD FRONT. THESE STORMS WILL REMAIN SCATTERED IN NATURE...AND
CONFINED MAINLY NORTH OF INTERSTATE 20. HOWEVER...ISOLATED STORMS
COULD BECOME SEVERE...WITH LARGE HAIL...AND THE POSSIBILITY OF
DAMAGING WIND GUSTS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY...

A STRONG STORM SYSTEM WILL ARRIVE TUESDAY OR WEDNESDAY WITH HEAVY
RAINFALL AND POSSIBLY SOME SEVERE WEATHER.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER...HAM RADIO OPERATOR...AND EMERGENCY MANAGEMENT
PERSONNEL ACTIVATION...IS NOT ANTICIPATED AT THIS TIME.

17

In the hours before

Local storm report, Mar 14, 8:18 PM CDT, 2 hours 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
818 PM CDT FRI MAR 14 2008

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

0810 PM     HAIL             COTTON VALLEY           32.81N 93.42W
03/14/2008  E1.75 INCH       WEBSTER            LA   AIRPLANE PILOT

            GOLF BALL SIZED HAIL IN COTTON VALLEY

0810 PM     FUNNEL CLOUD     COTTON VALLEY           32.81N 93.42W
03/14/2008                   WEBSTER            LA   LAW ENFORCEMENT

            FUNNEL CLOUD SPOTTED JUST SOUTH OF COTTON VALLEY

&&

15

Local storm report, Mar 14, 8:42 PM CDT, 2 hours 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
842 PM CDT FRI MAR 14 2008

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

0800 PM     HAIL             WALDO                   33.35N 93.30W
03/14/2008  E1.75 INCH       COLUMBIA           AR   BROADCAST MEDIA

            GOLF BALL SIZED HAIL IN WALDO

0800 PM     HAIL             1 NE MAGNOLIA           33.29N 93.22W
03/14/2008  E1.25 INCH       COLUMBIA           AR   TRAINED SPOTTER

&&

15

Local storm report, Mar 14, 8:43 PM CDT, 2 hours 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
843 PM CDT FRI MAR 14 2008

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

0834 PM     HAIL             18 W EL DORADO          33.22N 92.97W
03/14/2008  E0.75 INCH       UNION              AR   LAW ENFORCEMENT

            HAIL FELL IN THE MOUNT HOLLY COMMUNITY

&&

15

Local storm report, Mar 14, 9:03 PM CDT, 1 hour 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
903 PM CDT FRI MAR 14 2008

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

0840 PM     HAIL             6 E MINDEN              32.62N 93.18W
03/14/2008  E1.75 INCH       WEBSTER            LA   AMATEUR RADIO

0840 PM     HAIL             3 N ARCADIA             32.59N 92.92W
03/14/2008  E0.88 INCH       CLAIBORNE          LA   AIRPLANE PILOT

&&

D. BUTTS

Local storm report, Mar 14, 9:05 PM CDT, 1 hour 40 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE SHREVEPORT LA
905 PM CDT FRI MAR 14 2008

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

0840 PM     HAIL             3 N ARCADIA             32.59N 92.92W
03/14/2008  E0.88 INCH       CLAIBORNE          LA   AMATEUR RADIO

&&

D. BUTTS

Local storm report, Mar 14, 9:11 PM CDT, 1 hour 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
911 PM CDT FRI MAR 14 2008

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

0840 PM     HAIL             5 SE HOPE               33.62N 93.53W
03/14/2008  E1.75 INCH       HEMPSTEAD          AR   LAW ENFORCEMENT

&&

D. BUTTS

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 14, 7:20 PM CDT	Severe Thunderstorm Warning	SHV	Bossier, Caddo, Webster	40 min
Mar 14, 7:59 PM CDT	Tornado Warning	SHV	Bossier, Webster	31 min
Mar 14, 8:25 PM CDT	Tornado Warning	SHV	Claiborne, Webster	35 min
Mar 14, 8:34 PM CDT	Tornado Warning	SHV	Bienville, Claiborne, Lincoln, Webster	41 min
Mar 14, 8:59 PM CDT	Severe Thunderstorm Warning	SHV	Claiborne, Lincoln, Union	31 min
Mar 14, 9:13 PM CDT	Tornado Warning	SHV	Bienville, Jackson, Lincoln	32 min
Mar 14, 9:28 PM CDT	Severe Thunderstorm Warning	SHV	Lincoln, Ouachita, Union	47 min
Mar 14, 9:44 PM CDT	Tornado Warning	SHV	Jackson, Lincoln, Ouachita	46 min
Mar 14, 9:57 PM CDT	Severe Thunderstorm Warning	SHV	Ouachita, Union	48 min
Mar 14, 11:15 PM CDT	Tornado Warning	SHV	Union	30 min

Nearby

Tornado Warnings in Louisiana, 2008 Every tornado warning in 2008 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.