Alert archive / Arkansas / Tornado Warnings in 2021

Tornado Warning 18, NWS Little Rock, AR

April 7, 2021Logan County, Scott County, Yell County, Arkansas

NWS Little Rock, AR issued this tornado warning at Apr 7, 2021, 2:19 PM CDT for Logan County, Scott County, Yell 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: Apr 7, 2021, 2:19 PM CDT (19:19 UTC)
Expired: Apr 7, 2021, 2:33 PM CDT
In force: 14 min
Issued by: NWS Little Rock, AR
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Logan County, AR, Scott County, AR, Yell County, AR

The radar

The Western Arkansas radar (KSRX), 55 km from the middle of the area, began a volume at 19:21 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 7, 12:38 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 7.3 hours before the alert went out and 211 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: 790 J/kg
Mixed-layer CIN: -275 J/kg
Mixed-layer LCL: 767 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 186 m²/s²
0-3 km storm-relative helicity: 223 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

As transmitted.

632 
WFUS54 KLZK 071919
TORLZK
ARC083-127-149-072000-
/O.NEW.KLZK.TO.W.0018.210407T1919Z-210407T2000Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Little Rock AR
219 PM CDT Wed Apr 7 2021

The National Weather Service in Little Rock has issued a

* Tornado Warning for...
  South central Logan County in western Arkansas...
  Northeastern Scott County in western Arkansas...
  West central Yell County in central Arkansas...

* Until 300 PM CDT.
    
* At 219 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Cardiff, or 9 miles northeast of Waldron, moving
  east at 30 mph.

  HAZARD...Tornado and quarter size hail.

  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 impacted include...
  Magazine...                       Blue Mountain...
  Stonehouse Recreation Area...     Cardiff...
  Sugar Grove...                    Grayson...
  Waltreak...                       

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 3491 9400 3503 9405 3517 9375 3499 9358
TIME...MOT...LOC 1919Z 253DEG 27KT 3497 9395 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

DTC

2 follow-up statements

292 
WWUS54 KLZK 071927
SVSLZK

Severe Weather Statement
National Weather Service Little Rock AR
227 PM CDT Wed Apr 7 2021

ARC083-127-149-072000-
/O.CON.KLZK.TO.W.0018.000000T0000Z-210407T2000Z/
Logan AR-Scott AR-Yell AR-
227 PM CDT Wed Apr 7 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 300 PM CDT FOR SOUTH
CENTRAL LOGAN...NORTHEASTERN SCOTT AND WEST CENTRAL YELL COUNTIES...
    
At 227 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Cardiff, or 7 miles northeast of Waldron, moving
northeast at 40 mph.

HAZARD...Tornado and quarter size hail.

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 impacted include...
Blue Mountain...                  Stonehouse Recreation Area...
Sugar Grove...                    Grayson...
Waltreak...                       

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 3495 9389 3509 9393 3510 9390 3515 9373
      3499 9358 3497 9371
TIME...MOT...LOC 1927Z 247DEG 33KT 3496 9399 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

DTC

459 
WWUS54 KLZK 071933
SVSLZK

Severe Weather Statement
National Weather Service Little Rock AR
233 PM CDT Wed Apr 7 2021

ARC083-127-149-071943-
/O.CAN.KLZK.TO.W.0018.000000T0000Z-210407T2000Z/
Logan AR-Scott AR-Yell AR-
233 PM CDT Wed Apr 7 2021

...THE TORNADO WARNING FOR SOUTH CENTRAL LOGAN...NORTHEASTERN SCOTT
AND WEST CENTRAL YELL COUNTIES IS CANCELLED...
    
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and a
Severe Thunderstorm Warning remains in effect for the area.

A Tornado Watch remains in effect until 800 PM CDT for western and
central Arkansas.

LAT...LON 3495 9389 3509 9393 3510 9390 3515 9373
      3499 9358 3497 9371
TIME...MOT...LOC 1929Z 253DEG 27KT 3497 9393 

$$

DTC

The office that day

Everything else NWS Little Rock, AR issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 7, 8:31 AM CDT	Special Weather Statement	LZK	Pope	29 min
Apr 7, 1:42 PM CDT	Special Weather Statement	LZK	Sebastian	48 min
Apr 7, 1:47 PM CDT	Special Weather Statement	LZK	Johnson	43 min
Apr 7, 1:57 PM CDT	Special Weather Statement	LZK	Scott	48 min
Apr 7, 1:59 PM CDT	Severe Thunderstorm Warning	LZK	Johnson, Newton	46 min
Apr 7, 2:02 PM CDT	Special Weather Statement	LZK	Calhoun, Ouachita	43 min
Apr 7, 2:05 PM CDT	Severe Thunderstorm Warning	LZK	Polk	55 min
Apr 7, 2:18 PM CDT	Severe Thunderstorm Warning	LZK	Bradley, Calhoun, Cleveland, Dallas, Ouachita	27 min
Apr 7, 2:21 PM CDT	Severe Thunderstorm Warning	LZK	Arkansas, Lonoke, Monroe, Prairie	39 min
Apr 7, 2:27 PM CDT	Severe Thunderstorm Warning	LZK	Cleburne, Faulkner, Stone, Van Buren, White	33 min
Apr 7, 2:30 PM CDT	Severe Thunderstorm Warning	LZK	Lonoke, Pulaski, Saline	45 min
Apr 7, 2:33 PM CDT	Severe Thunderstorm Warning	LZK	Logan, Scott, Yell	42 min
Apr 7, 2:34 PM CDT	Special Weather Statement	LZK	Prairie	41 min
Apr 7, 2:36 PM CDT	Severe Thunderstorm Warning	LZK	Montgomery, Polk, Scott	39 min
Apr 7, 2:39 PM CDT	Special Weather Statement	LZK	Newton	51 min
Apr 7, 2:45 PM CDT	Severe Thunderstorm Warning	LZK	Calhoun, Cleveland, Dallas, Grant, Jefferson, Ouachita	30 min
Apr 7, 2:45 PM CDT	Tornado Warning	LZK	Logan, Yell	45 min
Apr 7, 3:03 PM CDT	Severe Thunderstorm Warning	LZK	Montgomery, Scott, Yell	42 min
Apr 7, 3:04 PM CDT	Special Weather Statement	LZK	Lincoln	41 min
Apr 7, 3:05 PM CDT	Severe Thunderstorm Warning	LZK	Lonoke, Prairie, Pulaski, White	40 min
Apr 7, 3:09 PM CDT	Special Weather Statement	LZK	Grant	51 min
Apr 7, 3:09 PM CDT	Severe Thunderstorm Warning	LZK	Yell	39 min
Apr 7, 3:15 PM CDT	Severe Thunderstorm Warning	LZK	Johnson, Logan, Pope, Yell	32 min
Apr 7, 3:16 PM CDT	Severe Thunderstorm Warning	LZK	Cleburne, Independence, Jackson, White	44 min
Apr 7, 3:25 PM CDT	Severe Thunderstorm Warning	LZK	Yell	23 min
Apr 7, 3:28 PM CDT	Severe Thunderstorm Warning	LZK	Logan, Yell	17 min
Apr 7, 3:33 PM CDT	Severe Thunderstorm Warning	LZK	Lonoke, Prairie, Pulaski	30 min
Apr 7, 3:35 PM CDT	Severe Thunderstorm Warning	LZK	Lawrence, Randolph	25 min
Apr 7, 3:46 PM CDT	Special Weather Statement	LZK	Pope	59 min
Apr 7, 4:08 PM CDT	Special Weather Statement	LZK	Arkansas	52 min
Apr 7, 4:11 PM CDT	Special Weather Statement	LZK	Lonoke, Prairie	49 min
Apr 7, 6:23 PM CDT	Special Weather Statement	LZK	Faulkner	52 min

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.