Alert archive / Arkansas / Tornado Warnings in 2015

Tornado Warning 76, NWS Tulsa, OK

December 26, 2015Benton County, Arkansas

NWS Tulsa, OK issued this tornado warning at Dec 26, 2015, 3:38 PM CST for Benton County, Arkansas. 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 outline as issued.

The facts

Issued
Dec 26, 2015, 3:38 PM CST (21:38 UTC)
Expired
Dec 26, 2015, 4:15 PM CST
In force
37 min
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Benton County, AR

The radar

The Tulsa radar (KINX), 113 km from the middle of the area, began a volume at 21:37 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

Springfield, MO (KSGF), launched 12:00Z, 9.6 hours before the alert went out and 70 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 2015-12-26Temperature 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 2015-12-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 478 square meters per square second.1939587897Sfc1 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
433 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
478 m²/s²
0-3 km storm-relative helicity
446 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

407 
WFUS54 KTSA 262138
TORTSA
ARC007-262215-
/O.NEW.KTSA.TO.W.0076.151226T2138Z-151226T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
338 PM CST SAT DEC 26 2015

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN BENTON COUNTY IN NORTHWESTERN ARKANSAS...

* UNTIL 415 PM CST
    
* AT 338 PM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 4 MILES NORTHWEST OF DECATUR...MOVING NORTHEAST
  AT 35 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...
  BELLA VISTA...                    PEA RIDGE...
  GRAVETTE...                       DECATUR...
  HIWASSE...                        MILLER...
  SULPHUR SPRINGS...                

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 3647 9409 3630 9456 3648 9462 3650 9460
      3650 9412
TIME...MOT...LOC 2138Z 226DEG 32KT 3638 9452 

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

$$
2 follow-up statements
713 
WWUS54 KTSA 262153
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
353 PM CST SAT DEC 26 2015

ARC007-262215-
/O.CON.KTSA.TO.W.0076.000000T0000Z-151226T2215Z/
BENTON AR-
353 PM CST SAT DEC 26 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM CST FOR
NORTHWESTERN BENTON COUNTY...
    
AT 352 PM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 4 MILES NORTHEAST OF GRAVETTE...MOVING NORTHEAST AT 35
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...
PEA RIDGE...                      GRAVETTE...
HIWASSE...                        SULPHUR SPRINGS...

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 3647 9409 3637 9446 3650 9447 3650 9412
TIME...MOT...LOC 2152Z 226DEG 32KT 3647 9440 

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

$$
417 
WWUS54 KTSA 262208
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
408 PM CST SAT DEC 26 2015

ARC007-262217-
/O.EXP.KTSA.TO.W.0076.000000T0000Z-151226T2215Z/
BENTON AR-
408 PM CST SAT DEC 26 2015

...THE TORNADO WARNING FOR NORTHWESTERN BENTON COUNTY WILL EXPIRE AT
415 PM CST...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

LAT...LON 3647 9409 3637 9446 3650 9447 3650 9412
TIME...MOT...LOC 2206Z 226DEG 32KT 3647 9440 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 25, 10:40 PM CSTRiver Flood WarningTSACrawford, Sebastian10 days
Dec 25, 10:40 PM CSTRiver Flood WarningTSAFranklin, Johnson, Logan10 days
Dec 25, 10:40 PM CSTRiver Flood WarningTSACrawford8 days
Dec 25, 10:40 PM CSTRiver Flood WarningTSACrawford, Franklin58 hr
Dec 25, 10:55 PM CSTRiver Flood WarningTSACarroll64 hr
Dec 26, 12:40 PM CSTSpecial Weather StatementTSASebastian50 min
Dec 26, 1:42 PM CSTSpecial Weather StatementTSAFranklin, Madison48 min
Dec 26, 4:08 PM CSTAreal Flood WarningTSABenton12 hr
Dec 26, 5:16 PM CSTSevere Thunderstorm WarningTSABenton29 min
Dec 26, 5:42 PM CSTSevere Thunderstorm WarningTSABenton48 min

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.