Alert archive / Texas / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 20, NWS Shreveport, LA

March 28, 20144 counties in Texas

NWS Shreveport, LA issued this severe thunderstorm warning at Mar 28, 2014, 3:53 PM CDT for 4 counties in Texas. It was in force for 37 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: Mar 28, 2014, 3:53 PM CDT (20:53 UTC)
Expired: Mar 28, 2014, 4:30 PM CDT
In force: 37 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon

Counties Bowie County, TX, Morris County, TX, Red River County, TX, Titus County, TX

The radar

The Shreveport radar (KSHV), 134 km from the middle of the area, began a volume at 20:56 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 watch it was issued in

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

Issued	Product	Office	Lasted
Mar 28, 12:47 PM CDT	Severe Thunderstorm Watch	SPC	6 hr
Mar 28, 2:35 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Shreveport, LA (KBAD), launched 12:00Z, 8.9 hours before the alert went out and 137 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: 1548 J/kg
Mixed-layer CIN: -40 J/kg
Mixed-layer LCL: 564 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 158 m²/s²
0-3 km storm-relative helicity: 124 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 5.9

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 Mar 28, 2:56 PM CDT, 57 minutes earlier.

Area forecast discussion, Mar 28, 2:56 PM CDT, 57 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE SHREVEPORT LA
256 PM CDT FRI MAR 28 2014

.DISCUSSION...

QUICK UPDATE TO ZONES COMING OUT TO INCLUDE SEVERE THUNDERSTORM
WATCH NUMBER 37 TO INCLUDE OUR COUNTIES IN SOUTHEAST
OKLAHOMA...SOUTHWEST AND SOUTH CENTRAL ARKANSAS...AND FOR
NORTHWEST AND NORTH CENTRAL LOUISIANA.

&&

.PRELIMINARY POINT TEMPS/POPS...
SHV  82  53  73  45  75 /  70  60   0   0   0
MLU  80  55  71  43  73 /  70  70   0   0   0
DEQ  75  46  71  38  74 /  70  40   0   0   0
TXK  78  50  71  44  73 /  70  50   0   0   0
ELD  79  53  71  40  72 /  70  70   0   0   0
TYR  82  49  73  45  78 /  70  20   0   0   0
GGG  82  50  73  43  77 /  70  30   0   0   0
LFK  83  54  77  44  77 /  70  60   0   0   0

&&

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

06

Hazardous weather outlook, Mar 28, 11:00 AM CDT, 4 hours 53 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SHREVEPORT LA
1100 AM CDT FRI MAR 28 2014

ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-TXZ096-
097-108>112-124>126-136>138-149>153-165>167-291100-
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-
1100 AM CDT FRI MAR 28 2014

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

.DAY ONE...THIS AFTERNOON AND TONIGHT...

SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS WILL DEVELOP
AND SPREAD ACROSS THE FOUR STATE REGION...AHEAD OF A STRONG UPPER
LEVEL DISTURBANCE...THAT WILL SHIFT EAST ACROSS OKLAHOMA AND TEXAS.
A VERY UNSTABLE AIR MASS WILL BE IN PLACE...WITH SEVERE
THUNDERSTORMS LIKELY DEVELOPING BY MID TO LATE AFTERNOON.
COLD TEMPERATURES ALOFT...WILL ADD TO THE INSTABILITY WITH LARGE
HAIL THE PRIMARY THREAT...ALONG WITH DAMAGING WINDS. AN ISOLATED
TORNADO CAN SPIN UP. LATE THIS AFTERNOON AND INTO THE EVENING
THUNDERSTORMS WILL ORGANIZE INTO CLUSTERS AND RACE RAPIDLY EAST OUT
OF THE AREA BY MIDNIGHT.

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

NO HAZARDOUS WEATHER IS EXPECTED.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF EMERGENCY MANAGERS...SKYWARN NETWORKS...AND AMATEUR
RADIO OPERATORS...WILL LIKELY BE NEEDED THIS AFTERNOON AND EVENING
ACROSS THE FOUR STATE REGION.

06

In the hours before

Special weather statement, Mar 28, 1:01 PM CDT, 2 hours 52 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
101 PM CDT FRI MAR 28 2014

ARZ060-281830-
HEMPSTEAD-
101 PM CDT FRI MAR 28 2014

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY...EFFECTIVE UNTIL 130 PM CDT...FOR THE FOLLOWING
COUNTY...

IN SOUTHWEST ARKANSAS...
     HEMPSTEAD...

INCLUDING THE FOLLOWING LOCATIONS...
     MCCASKILL...

AT 1259 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
DETECTING A STRONG THUNDERSTORM 7 MILES EAST OF NASHVILLE...MOVING
NORTHEAST AT 30 MPH.

PEA SIZE HAIL...AND WINDS 30 TO 40 MPH ARE EXPECTED WITH THIS STORM.

19

Special weather statement, Mar 28, 1:32 PM CDT, 2 hours 21 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
132 PM CDT FRI MAR 28 2014

ARZ061-281900-
NEVADA-
132 PM CDT FRI MAR 28 2014

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY...EFFECTIVE UNTIL 200 PM CDT...FOR THE FOLLOWING
COUNTY...

IN SOUTHWEST ARKANSAS...
     NEVADA...

INCLUDING THE FOLLOWING LOCATIONS...
     PRESCOTT...

AT 129 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
DETECTING A STRONG THUNDERSTORM NEAR PRESCOTT...MOVING NORTHEAST AT
30 MPH.

PEA SIZE HAIL...AND WINDS 30 TO 40 MPH ARE EXPECTED WITH THIS STORM.

19

Special weather statement, Mar 28, 3:35 PM CDT, 18 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
335 PM CDT FRI MAR 28 2014

TXZ097-109-111-282100-
BOWIE-MORRIS-TITUS-
335 PM CDT FRI MAR 28 2014

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY...EFFECTIVE UNTIL 400 PM CDT...FOR THE FOLLOWING
COUNTIES...

IN NORTHEAST TEXAS...
     MORRIS...TITUS AND BOWIE...

INCLUDING THE FOLLOWING LOCATIONS...
     COOKVILLE...DALBY SPRINGS...NAPLES...OMAHA...SIMMS AND US 259
     AND I 30 INTERSECTION...

AT 333 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
DETECTING A STRONG THUNDERSTORM NEAR COOKVILLE...OR 7 MILES EAST OF
MOUNT PLEASANT...MOVING NORTHEAST AT 35 MPH.

DIME SIZE HAIL...AND WINDS AROUND 40 MPH ARE EXPECTED WITH THIS
STORM.

19

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 28, 4:09 PM CDT	Severe Thunderstorm Warning	SHV	Bowie, Cass, Morris, Red River, Titus	51 min
Mar 28, 4:12 PM CDT	Severe Thunderstorm Warning	SHV	Camp, Morris, Titus, Upshur	48 min
Mar 28, 4:25 PM CDT	Severe Thunderstorm Warning	SHV	Bowie	50 min
Mar 28, 4:48 PM CDT	Severe Thunderstorm Warning	SHV	Bowie, Cass, Morris	42 min
Mar 28, 4:53 PM CDT	Severe Thunderstorm Warning	SHV	Camp, Cass, Harrison, Marion, Morris, Upshur	67 min
Mar 28, 5:14 PM CDT	Severe Thunderstorm Warning	SHV	Bowie, Cass	46 min
Mar 28, 5:14 PM CDT	Severe Thunderstorm Warning	SHV	Gregg, Harrison, Panola, Rusk	61 min
Mar 28, 5:28 PM CDT	Severe Thunderstorm Warning	SHV	Red River	47 min
Mar 28, 5:37 PM CDT	Severe Thunderstorm Warning	SHV	Nacogdoches, Panola, Rusk, Shelby	53 min
Mar 28, 5:54 PM CDT	Severe Thunderstorm Warning	SHV	Bowie, Morris, Red River, Titus	51 min
Mar 28, 5:56 PM CDT	Severe Thunderstorm Warning	SHV	Cherokee, Nacogdoches, Smith	64 min
Mar 28, 5:58 PM CDT	Severe Thunderstorm Warning	SHV	Harrison	62 min
Mar 28, 6:12 PM CDT	Severe Thunderstorm Warning	SHV	Panola, Shelby	63 min
Mar 28, 6:19 PM CDT	Severe Thunderstorm Warning	SHV	Gregg, Harrison, Panola, Rusk, Smith	56 min
Mar 28, 6:38 PM CDT	Flash Flood Warning	SHV	Bowie, Cass, Morris	2 hr
Mar 28, 6:48 PM CDT	Severe Thunderstorm Warning	SHV	Angelina, Cherokee, Nacogdoches, Panola, Rusk, San Augustine and 1 more	57 min
Mar 28, 5:48 PM CDT	Severe Thunderstorm Warning	SHV	Bossier, Webster	57 min
Mar 28, 6:36 PM CDT	Severe Thunderstorm Warning	SHV	Bienville, Bossier, Caddo, Claiborne, Webster	54 min
Mar 28, 4:03 PM CDT	Severe Thunderstorm Warning	SHV	Hempstead, Howard, Little River, Sevier	42 min
Mar 28, 4:25 PM CDT	Severe Thunderstorm Warning	SHV	Union	20 min
Mar 28, 4:43 PM CDT	Severe Thunderstorm Warning	SHV	Hempstead, Howard, Little River, Nevada, Sevier	62 min
Mar 28, 5:04 PM CDT	Severe Thunderstorm Warning	SHV	Hempstead, Miller, Nevada	56 min
Mar 28, 6:44 PM CDT	Severe Thunderstorm Warning	SHV	Columbia, Union	61 min

Nearby

Severe Thunderstorm Warnings in Texas, 2014 Every severe thunderstorm warning in 2014

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.