Alert archive / Arkansas / Tornado Warnings in 2021

Tornado Warning 21, NWS Little Rock, AR

April 28, 20214 counties in Arkansas

NWS Little Rock, AR issued this tornado warning at Apr 28, 2021, 1:56 PM CDT for 4 counties in Arkansas. It was in force for 13 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, 1:56 PM CDT (18:56 UTC)
Expired: Apr 28, 2021, 2:09 PM CDT
In force: 13 min
Issued by: NWS Little Rock, AR
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

Counties Baxter County, AR, Fulton County, AR, Izard County, AR, Stone County, AR

The radar

The Little Rock radar (KLZK), 151 km from the middle of the area, began a volume at 18:58 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, 6.9 hours before the alert went out and 175 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.

023 
WFUS54 KLZK 281856
TORLZK
ARC005-049-065-137-281930-
/O.NEW.KLZK.TO.W.0021.210428T1856Z-210428T1930Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Little Rock AR
156 PM CDT Wed Apr 28 2021

The National Weather Service in Little Rock has issued a

* Tornado Warning for...
  North central Stone County in north central Arkansas...
  Northwestern Izard County in north central Arkansas...
  East central Baxter County in north central Arkansas...
  Southern Fulton County in north central Arkansas...

* Until 230 PM CDT.
    
* At 155 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Calico Rock, or 15 miles west of Melbourne, moving
  northeast at 40 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 impacted include...
  Melbourne...                      Calico Rock...
  Oxford...                         Pineville...
  Bexar...                          Culp...
  Wideman...                        Gorby...
  Brockwell...                      Dolph...
  Wild Cherry...                    

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 3632 9198 3608 9188 3605 9219 3615 9224
TIME...MOT...LOC 1855Z 246DEG 33KT 3613 9216 

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

$$

230

1 follow-up statement

137 
WWUS54 KLZK 281909
SVSLZK

Severe Weather Statement
National Weather Service Little Rock AR
209 PM CDT Wed Apr 28 2021

ARC005-049-065-137-281919-
/O.CAN.KLZK.TO.W.0021.000000T0000Z-210428T1930Z/
Stone AR-Izard AR-Baxter AR-Fulton AR-
209 PM CDT Wed Apr 28 2021

...THE TORNADO WARNING FOR NORTH CENTRAL STONE...NORTHWESTERN
IZARD...EAST CENTRAL BAXTER AND SOUTHERN FULTON COUNTIES IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.

LAT...LON 3632 9198 3608 9188 3605 9219 3615 9224
TIME...MOT...LOC 1906Z 246DEG 33KT 3618 9201 

$$

230

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 28, 9:17 AM CDT	Severe Thunderstorm Warning	LZK	Boone	43 min
Apr 28, 10:04 AM CDT	Special Weather Statement	LZK	Marion	41 min
Apr 28, 10:22 AM CDT	River Flood Warning	LZK	Independence, Jackson, Lawrence	25 days
Apr 28, 10:22 AM CDT	River Flood Warning	LZK	Randolph	16 days
Apr 28, 10:37 AM CDT	River Flood Warning	LZK	Jackson, Woodruff	18 days
Apr 28, 10:41 AM CDT	River Flood Warning	LZK	Arkansas, Monroe	51 days
Apr 28, 1:37 PM CDT	Special Weather Statement	LZK	Baxter	53 min
Apr 28, 2:26 PM CDT	Flash Flood Watch	LZK	Baxter, Clark, Dallas, Fulton, Garland, Hot Spring and 5 more	24 hr
Apr 28, 2:47 PM CDT	Special Weather Statement	LZK	Randolph	28 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.