Alert archive / Arkansas / Tornado Warnings in 2021

Tornado Warning 14, NWS Tulsa, OK

April 28, 2021Benton County, Arkansas

NWS Tulsa, OK issued this tornado warning at Apr 28, 2021, 8:03 AM CDT for Benton County, Arkansas. It was in force for 27 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: Apr 28, 2021, 8:03 AM CDT (13:03 UTC)
Expired: Apr 28, 2021, 8:30 AM CDT
In force: 27 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Tornado: Observed
Hail: 0.0 in

County Benton County, AR

The radar

The Springfield radar (KSGF), 102 km from the middle of the area, began a volume at 13:02 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
Apr 28, 3:01 AM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 1.1 hours before the alert went out and 55 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: 34 J/kg
Mixed-layer CIN: -105 J/kg
Mixed-layer LCL: 1441 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 84 m²/s²
0-3 km storm-relative helicity: 127 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

734 
WFUS54 KTSA 281303
TORTSA
ARC007-281330-
/O.NEW.KTSA.TO.W.0014.210428T1303Z-210428T1330Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tulsa OK
803 AM CDT Wed Apr 28 2021

The National Weather Service in Tulsa has issued a

* Tornado Warning for...
  Northeastern Benton County in northwestern Arkansas...

* Until 830 AM CDT.

* At 802 AM CDT, a confirmed tornado was located 3 miles south of
  Garfield, moving northeast at 25 mph.

  HAZARD...Damaging tornado.

  SOURCE...Weather spotters confirmed tornado.

  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...
  Gateway...                        Hill Top...
  Walnut Hill...                    

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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 3639 9388 3637 9389 3637 9402 3650 9403
      3650 9387 3639 9387
TIME...MOT...LOC 1302Z 215DEG 20KT 3642 9397 

TORNADO...OBSERVED
HAIL...0.00IN

$$

2 follow-up statements

247 
WWUS54 KTSA 281318
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
818 AM CDT Wed Apr 28 2021

ARC007-281330-
/O.CON.KTSA.TO.W.0014.000000T0000Z-210428T1330Z/
Benton AR-
818 AM CDT Wed Apr 28 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 AM CDT FOR
NORTHEASTERN BENTON COUNTY...
    
At 817 AM CDT, a severe thunderstorm capable of producing a tornado
was located over Gateway, moving northeast at 25 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...
Gateway...                        

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 3640 9387 3643 9397 3650 9396 3650 9387
TIME...MOT...LOC 1317Z 215DEG 20KT 3649 9391 

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

$$

492 
WWUS54 KTSA 281322
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
822 AM CDT Wed Apr 28 2021

ARC007-281332-
/O.EXP.KTSA.TO.W.0014.000000T0000Z-210428T1330Z/
Benton AR-
822 AM CDT Wed Apr 28 2021

...THE TORNADO WARNING FOR NORTHEASTERN BENTON COUNTY WILL EXPIRE AT
830 AM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning will be allowed to expire.  However gusty winds
are still possible with this thunderstorm.

A Tornado Watch remains in effect until 1000 AM CDT for northwestern
Arkansas.

LAT...LON 3640 9387 3643 9397 3650 9396 3650 9387
TIME...MOT...LOC 1322Z 238DEG 20KT 3647 9385 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 28, 6:26 AM CDT	Tornado Warning	TSA	Washington	18 min
Apr 28, 6:47 AM CDT	Special Weather Statement	TSA	Washington	43 min
Apr 28, 7:04 AM CDT	Special Weather Statement	TSA	Benton	26 min
Apr 28, 7:20 AM CDT	Areal Flood Advisory	TSA	Benton, Washington	4 hr
Apr 28, 7:34 AM CDT	Special Weather Statement	TSA	Benton	26 min
Apr 28, 7:47 AM CDT	Severe Thunderstorm Warning	TSA	Benton, Carroll	43 min
Apr 28, 7:52 AM CDT	Flash Flood Warning	TSA	Benton, Washington	5 hr
Apr 28, 7:58 AM CDT	Special Weather Statement	TSA	Benton	32 min
Apr 28, 8:13 AM CDT	Tornado Warning	TSA	Carroll	22 min
Apr 28, 8:16 AM CDT	Severe Thunderstorm Warning	TSA	Benton, Washington	44 min
Apr 28, 8:27 AM CDT	Special Weather Statement	TSA	Crawford, Washington	48 min
Apr 28, 8:29 AM CDT	Flash Flood Warning	TSA	Benton, Carroll, Madison, Washington	4 hr
Apr 28, 8:40 AM CDT	Severe Thunderstorm Warning	TSA	Benton, Carroll, Madison, Washington	50 min
Apr 28, 9:04 AM CDT	Severe Thunderstorm Warning	TSA	Carroll	26 min
Apr 28, 9:15 AM CDT	Special Weather Statement	TSA	Crawford, Franklin, Madison	45 min
Apr 28, 9:26 AM CDT	Special Weather Statement	TSA	Carroll	19 min
Apr 28, 9:42 AM CDT	Areal Flood Advisory	TSA	Carroll, Madison, Washington	3 hr
Apr 28, 9:56 AM CDT	Special Weather Statement	TSA	Carroll, Franklin, Madison	34 min
Apr 28, 9:58 AM CDT	River Flood Warning	TSA	Crawford	41 hr
Apr 28, 9:58 AM CDT	River Flood Warning	TSA	Crawford, Sebastian	41 hr
Apr 28, 9:58 AM CDT	River Flood Warning	TSA	Franklin, Johnson, Logan	70 hr
Apr 28, 10:34 AM CDT	Special Weather Statement	TSA	Franklin	41 min
Apr 28, 11:34 AM CDT	Areal Flood Advisory	TSA	Crawford, Franklin	3 hr
Apr 28, 11:52 AM CDT	Flash Flood Warning	TSA	Benton, Carroll, Crawford, Franklin, Madison, Washington	8 hr
Apr 28, 4:42 PM CDT	River Flood Advisory	TSA	Crawford, Franklin	19 hr

Nearby

Tornado Warnings in Arkansas, 2021 Every tornado warning in 2021 Tornadoes in 2021

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.