Alert archive / Arkansas / Tornado Warnings in 2021

Tornado Warning 15, NWS Tulsa, OK

April 28, 2021Carroll County, Arkansas

NWS Tulsa, OK issued this tornado warning at Apr 28, 2021, 8:13 AM CDT for Carroll County, Arkansas. It was in force for 22 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, 8:13 AM CDT (13:13 UTC)
Expired: Apr 28, 2021, 8:35 AM CDT
In force: 22 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

County Carroll County, AR

The radar

The Springfield radar (KSGF), 98 km from the middle of the area, began a volume at 13:14 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, 1.2 hours before the alert went out and 54 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.

066 
WFUS54 KTSA 281313
TORTSA
ARC015-281345-
/O.NEW.KTSA.TO.W.0015.210428T1313Z-210428T1345Z/

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

The National Weather Service in Tulsa has issued a

* Tornado Warning for...
  Northwestern Carroll County in northwestern Arkansas...

* Until 845 AM CDT.
    
* At 812 AM CDT, a severe thunderstorm capable of producing a tornado
  was located 5 miles southeast of 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...
  Eureka Springs...                 Beaver...
  Oak Hill...                       Busch...

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 3638 9380 3638 9389 3639 9388 3639 9387
      3650 9386 3650 9367
TIME...MOT...LOC 1312Z 218DEG 20KT 3643 9388 

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

$$

2 follow-up statements

998 
WWUS54 KTSA 281321
SVSTSA

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

ARC015-281345-
/O.CON.KTSA.TO.W.0015.000000T0000Z-210428T1345Z/
Carroll AR-
821 AM CDT Wed Apr 28 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 AM CDT FOR
NORTHWESTERN CARROLL COUNTY...
    
At 820 AM CDT, a severe thunderstorm capable of producing a tornado
was located near Beaver, moving northeast 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...
Eureka Springs...                 Beaver...
Busch...                          

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 3643 9377 3643 9387 3650 9386 3650 9374
TIME...MOT...LOC 1320Z 217DEG 26KT 3648 9382 

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

$$

235 
WWUS54 KTSA 281335
SVSTSA

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

ARC015-281344-
/O.CAN.KTSA.TO.W.0015.000000T0000Z-210428T1345Z/
Carroll AR-
835 AM CDT Wed Apr 28 2021

...THE TORNADO WARNING FOR NORTHWESTERN CARROLL COUNTY IS
CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning has been cancelled.  However gusty winds and
torrential rainfall are still possible with this thunderstorm.

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

LAT...LON 3643 9377 3643 9387 3650 9386 3650 9374
TIME...MOT...LOC 1333Z 218DEG 20KT 3654 9376 

$$

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, 8:03 AM CDT	Tornado Warning Tornado observed	TSA	Benton	27 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.