Alert archive / Arkansas / Tornado Warnings in 2015

Tornado Warning 21, NWS Shreveport, LA

May 9, 2015Bowie County, Texas; Little River County, Sevier County, Arkansas

NWS Shreveport, LA issued this tornado warning at May 9, 2015, 7:16 PM CDT for Bowie County, Texas; Little River County, Sevier County, Arkansas. It was in force for 44 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
May 9, 2015, 7:16 PM CDT (00:16 UTC)
Expired
May 9, 2015, 8:00 PM CDT
In force
44 min
Issued by
NWS Shreveport, LA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Little River County, AR, Sevier County, AR, Bowie County, TX

The radar

The Shreveport radar (KSHV), 149 km from the middle of the area, began a volume at 00:17 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.

IssuedProductOfficeLasted
May 9, 2:40 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Shreveport, LA (KBAD), launched 00:00Z, 0.3 hours before the alert went out and 149 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 2015-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 566 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Shreveport, LA at 00:00Z on 2015-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 square meters per square second.193958Sfc1 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
566 J/kg
Mixed-layer CIN
-125 J/kg
Mixed-layer LCL
1556 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
261 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.4

Open this sounding in Storm Lab

The text

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

872 
WFUS54 KSHV 100016
TORSHV
ARC081-133-TXC037-100100-
/O.NEW.KSHV.TO.W.0021.150510T0016Z-150510T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
716 PM CDT SAT MAY 9 2015

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* TORNADO WARNING FOR...
  WESTERN LITTLE RIVER COUNTY IN SOUTHWESTERN ARKANSAS...
  SOUTHWESTERN SEVIER COUNTY IN SOUTHWESTERN ARKANSAS...
  NORTH CENTRAL BOWIE COUNTY IN NORTHEASTERN TEXAS...

* UNTIL 800 PM CDT
    
* AT 716 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A 
  TORNADO WAS LOCATED 8 MILES SOUTH OF FOREMAN ALONG THE RED 
  RIVER...MOVING NORTH AT 30 MPH.

  HAZARD...TORNADO. 

  SOURCE...RADAR INDICATED ROTATION. 

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. 
           DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE 
           DAMAGE IS LIKELY. 

* THIS DANGEROUS STORM WILL BE NEAR...
  FOREMAN AROUND 735 PM CDT.
  WINTHROP AROUND 750 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE ARDEN
AND WALLACE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3386 9413 3351 9434 3355 9452 3390 9438
TIME...MOT...LOC 0015Z 201DEG 26KT 3360 9440 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

15
1 follow-up statement
913 
WWUS54 KSHV 100053
SVSSHV

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
753 PM CDT SAT MAY 9 2015

ARC081-133-TXC037-100102-
/O.EXP.KSHV.TO.W.0021.000000T0000Z-150510T0100Z/
LITTLE RIVER AR-SEVIER AR-BOWIE TX-
753 PM CDT SAT MAY 9 2015

...THE TORNADO WARNING FOR WESTERN LITTLE RIVER...SOUTHWESTERN SEVIER
AND NORTH CENTRAL BOWIE COUNTIES WILL EXPIRE AT 800 PM CDT...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FOR SOUTHWESTERN
ARKANSAS...SOUTHEASTERN OKLAHOMA AND NORTHEASTERN TEXAS.

LAT...LON 3386 9413 3351 9434 3355 9452 3390 9438
TIME...MOT...LOC 0051Z 201DEG 26KT 3360 9440 

$$

15

The office that day

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

IssuedProductOfficeCountiesLasted
May 9, 7:14 PM CDTSevere Thunderstorm WarningSHVBowie, Cass, Morris61 min
May 9, 7:47 PM CDTSevere Thunderstorm WarningSHVBowie43 min
May 10, 10:51 AM CDTRiver Flood WarningSHVCass, Marion10 days
May 10, 4:01 PM CDTSpecial Weather StatementSHVGregg, Upshur44 min
May 10, 6:18 PM CDTTornado WarningSHVBowie, Red River42 min
May 9, 7:25 PM CDTTornado WarningSHVHempstead, Little River, Miller50 min
May 9, 8:10 PM CDTTornado WarningSHVColumbia, Lafayette, Nevada50 min
May 9, 8:28 PM CDTSpecial Weather StatementSHVHempstead47 min
May 9, 8:42 PM CDTSpecial Weather StatementSHVNevada18 min
May 10, 8:52 AM CDTRiver Flood WarningSHVHoward, Little River, Sevier4 days
May 10, 11:54 AM CDTSpecial Weather StatementSHVSevier51 min
May 10, 5:58 PM CDTSpecial Weather StatementSHVLafayette47 min

Nearby

Tornado Warnings in Arkansas, 2015Tornado Warnings in Texas, 2015Every tornado warning in 2015Tornadoes in 2015

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.