Alert archive / Arkansas / Tornado Warnings in 2018

Tornado Warning 2, NWS Tulsa, OK

January 21, 2018Franklin County, Sebastian County, Arkansas

NWS Tulsa, OK issued this tornado warning at Jan 21, 2018, 6:58 PM CST for Franklin County, Sebastian County, Arkansas. It was in force for 32 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
Jan 21, 2018, 6:58 PM CST (00:58 UTC)
Expired
Jan 21, 2018, 7:30 PM CST
In force
32 min
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Franklin County, AR, Sebastian County, AR

The radar

The Western Arkansas radar (KSRX), 22 km from the middle of the area, began a volume at 00:57 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

TimeReportWhereRemark
Jan 21, 6:59 PM CSTTORNADO2 N Huntington, ARSURVEY TEAMS HAVE CONFIRMED A LOW END EF1 TORNADO WITH THE MAIN DAMAGE BEING UPROOTED TREES AND A DESTROYED SHED AT THE WATER PLANT.
Jan 21, 7:00 PM CSTTSTM WND DMG1 Nne Huntington, ARBARN COMPLETELY DESTROYED.
Jan 21, 7:00 PM CSTTSTM WND DMGHuntington, ARARKANSAS STATE POLICE IN FORT SMITH RELAYED A REPORT OF SOME DAMAGE TO THE WATER PLANT IN HUNTINGTON.
Jan 21, 7:10 PM CSTTSTM WND DMG5 Se Greenwood, ARSTRONG THUNDERSTORM WIND DAMAGED THE ROOF OF A HOME
Jan 21, 7:34 PM CSTTSTM WND DMG5 Ne Charleston, ARSTRONG THUNDERSTORM WIND BLEW DOWN LARGE TREE LIMBS

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

The watch it was issued in

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

IssuedProductOfficeLasted
Jan 21, 3:05 PM CSTTornado WatchSPC8 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 1.0 hours before the alert went out and 187 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 00:00Z on 2018-01-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 87 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, Springfield, MO at 00:00Z on 2018-01-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 232 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
87 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
971 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
232 m²/s²
0-3 km storm-relative helicity
257 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

788 
WFUS54 KTSA 220058
TORTSA
ARC047-131-220130-
/O.NEW.KTSA.TO.W.0002.180122T0058Z-180122T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tulsa OK
658 PM CST SUN JAN 21 2018

The National Weather Service in Tulsa has issued a

* Tornado Warning for...
  Southwestern Franklin County in west central Arkansas...
  Eastern Sebastian County in west central Arkansas...

* Until 730 PM CST
    
* At 658 PM CST, a severe thunderstorm with strong low level rotation
  that could produce a tornado at any time was located near
  Huntington, moving northeast at 50 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...
  Charleston...                     Greenwood...
  Lavaca...                         Mansfield...
  Huntington...                     Branch...
  Bloomer...                        Washburn...
  Burnville...                      Fort Chaffee...
  Arkola...                         Crossroads...
  Witcherville...                   Dayton...
  Milltown...                       Vesta...
  Ursula...                         

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 3523 9402 3514 9403 3514 9414 3510 9414
      3506 9425 3506 9423 3503 9423 3509 9434
      3538 9418 3538 9415 3539 9414 3542 9415
      3545 9414 3544 9409 3532 9392 3523 9392
TIME...MOT...LOC 0058Z 216DEG 42KT 3511 9425 

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

$$
2 follow-up statements
849 
WWUS54 KTSA 220106
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
706 PM CST SUN JAN 21 2018

ARC047-131-220130-
/O.CON.KTSA.TO.W.0002.000000T0000Z-180122T0130Z/
Franklin AR-Sebastian AR-
706 PM CST SUN JAN 21 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CST FOR
SOUTHWESTERN FRANKLIN AND NORTHEASTERN SEBASTIAN COUNTIES...
    
At 706 PM CST, a severe thunderstorm with strong low level rotation
that could produce a tornado at any time was located over Burnville,
moving northeast at 50 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...
Charleston...                     Greenwood...
Lavaca...                         Branch...
Bloomer...                        Washburn...
Burnville...                      Fort Chaffee...
Crossroads...                     Witcherville...
Dayton...                         Milltown...
Vesta...                          Ursula...

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 3523 9402 3514 9403 3514 9414 3509 9421
      3514 9429 3538 9418 3538 9415 3539 9414
      3542 9415 3545 9414 3544 9409 3532 9392
      3523 9392
TIME...MOT...LOC 0106Z 215DEG 43KT 3518 9419 

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

$$
532 
WWUS54 KTSA 220116
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
716 PM CST SUN JAN 21 2018

ARC047-131-220130-
/O.CON.KTSA.TO.W.0002.000000T0000Z-180122T0130Z/
Franklin AR-Sebastian AR-
716 PM CST SUN JAN 21 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CST FOR
SOUTHWESTERN FRANKLIN AND NORTHEASTERN SEBASTIAN COUNTIES...
    
At 715 PM CST, a severe thunderstorm capable of producing a tornado 
was located near Bloomer, moving northeast at 50 mph. Damage to 
the Huntington water plant has been reported by law enforcement. 

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...
Charleston...                     Greenwood...
Lavaca...                         Branch...
Bloomer...                        Burnville...
Fort Chaffee...                   Milltown...
Vesta...                          Ursula...

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 3523 9402 3514 9413 3522 9424 3538 9418
      3538 9415 3539 9414 3542 9415 3545 9414
      3544 9409 3532 9392
TIME...MOT...LOC 0115Z 216DEG 42KT 3527 9411 

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

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 21, 6:02 PM CSTSpecial Weather StatementTSACrawford28 min
Jan 21, 6:41 PM CSTSpecial Weather StatementTSASebastian34 min
Jan 21, 6:42 PM CSTSevere Thunderstorm WarningTSASebastian33 min
Jan 21, 7:26 PM CSTTornado WarningTSAFranklin34 min
Jan 21, 7:58 PM CSTSpecial Weather StatementTSAFranklin32 min
Jan 21, 8:08 PM CSTSpecial Weather StatementTSABenton37 min
Jan 21, 8:21 PM CSTSpecial Weather StatementTSAMadison24 min
Jan 21, 9:04 PM CSTSpecial Weather StatementTSAFranklin26 min
Jan 21, 9:25 PM CSTSpecial Weather StatementTSAFranklin20 min
Jan 21, 9:35 PM CSTSpecial Weather StatementTSAMadison25 min
Jan 21, 9:43 PM CSTSevere Thunderstorm WarningTSACarroll, Madison47 min
Jan 21, 9:48 PM CSTSpecial Weather StatementTSAWashington27 min
Jan 21, 10:18 PM CSTSpecial Weather StatementTSACarroll27 min
Jan 21, 10:29 PM CSTSpecial Weather StatementTSACrawford, Sebastian31 min
Jan 21, 10:37 PM CSTSevere Thunderstorm WarningTSACrawford, Sebastian23 min
Jan 21, 10:56 PM CSTSpecial Weather StatementTSACrawford, Franklin34 min
Jan 21, 11:25 PM CSTSpecial Weather StatementTSACarroll, Madison35 min

Nearby

Tornado Warnings in Arkansas, 2018Every tornado warning in 2018Tornadoes in 2018

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.