Alert archive / Arkansas / Tornado Warnings in 2015

Tornado Warning 28, NWS Tulsa, OK

May 10, 2015Sebastian County, Arkansas

NWS Tulsa, OK issued this tornado warning at May 10, 2015, 11:01 AM CDT for Sebastian County, Arkansas. It was in force for 14 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 10, 2015, 11:01 AM CDT (16:01 UTC)
Expired
May 10, 2015, 11:15 AM CDT
In force
14 min
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

County Sebastian County, AR

The radar

The Western Arkansas radar (KSRX), 14 km from the middle of the area, began a volume at 16:05 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 10, 9:28 AM CDTTornado WatchSPC6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 4.0 hours before the alert went out and 197 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, Springfield, MO at 12:00Z on 2015-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Springfield, MO at 12:00Z on 2015-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 153 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1931 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
153 m²/s²
0-3 km storm-relative helicity
270 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.

609 
WFUS54 KTSA 101601
TORTSA
ARC131-101615-
/O.NEW.KTSA.TO.W.0028.150510T1601Z-150510T1615Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
1101 AM CDT SUN MAY 10 2015

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL SEBASTIAN COUNTY IN WEST CENTRAL ARKANSAS...

* UNTIL 1115 AM CDT

* AT 1059 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR MIDLAND...AND MOVING EAST 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.

* LOCATIONS IN OR NEAR THE PATH INCLUDE...EXCELSIOR...WITCHERVILLE
  AND GREENWOOD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. GO TO A DESIGNED SHELTER SUCH AS A SAFE ROOM OR STORM
CELLAR IF AVAILABLE. OTHERWISE...MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF SEEKING SHELTER
IN A BASEMENT...BE SURE TO GET BENEATH SOMETHING STURDY. IF IN A
MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3524 9425 3512 9421 3513 9439 3515 9441
TIME...MOT...LOC 1601Z 250DEG 25KT 3514 9437

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$
2 follow-up statements
913 
WWUS54 KTSA 101609
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1109 AM CDT SUN MAY 10 2015

ARC131-101615-
/O.CON.KTSA.TO.W.0028.000000T0000Z-150510T1615Z/
SEBASTIAN AR-
1109 AM CDT SUN MAY 10 2015

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL SEBASTIAN COUNTY
UNTIL 1115 AM CDT...

AT 1107 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR GREENWOOD...AND MOVING EAST 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.

LOCATIONS IN OR NEAR THE PATH INCLUDE...GREENWOOD

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. GO TO A DESIGNED SHELTER SUCH AS A SAFE ROOM OR STORM
CELLAR IF AVAILABLE. OTHERWISE...MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF SEEKING SHELTER
IN A BASEMENT...BE SURE TO GET BENEATH SOMETHING STURDY. IF IN A
MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3516 9432 3520 9433 3524 9425 3515 9422
TIME...MOT...LOC 1609Z 251DEG 27KT 3519 9425

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$
317 
WWUS54 KTSA 101615
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1115 AM CDT SUN MAY 10 2015

ARC131-101625-
/O.EXP.KTSA.TO.W.0028.000000T0000Z-150510T1615Z/
SEBASTIAN AR-
1115 AM CDT SUN MAY 10 2015

...THE TORNADO WARNING FOR CENTRAL SEBASTIAN COUNTY HAS EXPIRED...

THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS
EXPIRED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT
FOR THE AREA.

ADDITIONAL SEVERE THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO 
WATCH REMAINS IN EFFECT UNTIL 4 PM.

LAT...LON 3516 9432 3520 9433 3524 9425 3515 9422
TIME...MOT...LOC 1609Z 251DEG 27KT 3519 9425

$$

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 9, 7:45 PM CDTSevere Thunderstorm WarningTSACrawford, Sebastian45 min
May 9, 7:54 PM CDTFlash Flood WarningTSACrawford, Sebastian, Washington6 hr
May 9, 8:45 PM CDTFlash Flood WarningTSACrawford, Franklin, Madison, Sebastian, Washington9 hr
May 10, 12:46 AM CDTSpecial Weather StatementTSASebastian44 min
May 10, 12:49 AM CDTSpecial Weather StatementTSACrawford, Sebastian56 min
May 10, 1:42 AM CDTSevere Thunderstorm WarningTSACrawford, Franklin, Sebastian48 min
May 10, 1:57 AM CDTFlash Flood WarningTSACrawford, Sebastian, Washington3 hr
May 10, 2:29 AM CDTSevere Thunderstorm WarningTSACrawford, Franklin29 min
May 10, 4:34 AM CDTRiver Flood WarningTSACrawford, Sebastian59 hr
May 10, 4:57 AM CDTAreal Flood WarningTSACrawford, Sebastian, Washington6 hr
May 10, 5:22 AM CDTRiver Flood WarningTSACrawford20 hr
May 10, 5:27 AM CDTAreal Flood WarningTSACrawford, Franklin, Madison, Sebastian, Washington6 hr
May 10, 8:11 AM CDTRiver Flood AdvisoryTSACrawford, Franklin37 hr
May 10, 8:19 AM CDTRiver Flood WarningTSAFranklin, Johnson, Logan3 days
May 10, 9:48 AM CDTFlash Flood WarningTSACrawford, Franklin, Madison, Sebastian, Washington6 hr
May 10, 10:27 AM CDTSevere Thunderstorm WarningTSACrawford, Sebastian48 min
May 10, 10:51 AM CDTTornado WarningTSASebastian24 min
May 10, 11:03 AM CDTSpecial Weather StatementTSABenton, Carroll, Madison, Washington72 min
May 10, 11:13 AM CDTSevere Thunderstorm WarningTSACrawford, Franklin, Sebastian62 min
May 10, 11:57 AM CDTSevere Thunderstorm WarningTSAMadison48 min
May 10, 12:17 PM CDTSevere Thunderstorm WarningTSACarroll, Madison37 min
May 10, 2:52 PM CDTAreal Flood WarningTSACrawford, Franklin, Madison, Sebastian, Washington24 hr

Nearby

Tornado Warnings in Arkansas, 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.