Alert archive / Arkansas / Tornado Warnings in 2021

Tornado Warning 23, NWS Little Rock, AR

April 28, 2021Johnson County, Logan County, Pope County, Arkansas

NWS Little Rock, AR issued this tornado warning at Apr 28, 2021, 10:54 PM CDT for Johnson County, Logan County, Pope County, Arkansas. It was in force for 32 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, 10:54 PM CDT (03:54 UTC)
Expired
Apr 28, 2021, 11:26 PM CDT
In force
32 min
Issued by
NWS Little Rock, AR
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Johnson County, AR, Logan County, AR, Pope County, AR

The radar

The Western Arkansas radar (KSRX), 97 km from the middle of the area, began a volume at 03:57 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.

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 28, 7:55 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 3.9 hours before the alert went out and 167 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 2021-04-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 48 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 2021-04-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 320 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
48 J/kg
Mixed-layer CIN
-143 J/kg
Mixed-layer LCL
761 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
320 m²/s²
0-3 km storm-relative helicity
258 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.3

Open this sounding in Storm Lab

The text

As transmitted.

017 
WFUS54 KLZK 290354
TORLZK
ARC071-083-115-290445-
/O.NEW.KLZK.TO.W.0023.210429T0354Z-210429T0445Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Little Rock AR
1054 PM CDT Wed Apr 28 2021

The National Weather Service in Little Rock has issued a

* Tornado Warning for...
  Northeastern Logan County in western Arkansas...
  Southeastern Johnson County in western Arkansas...
  Northwestern Pope County in central Arkansas...

* Until 1145 PM CDT.
    
* At 1054 PM CDT, a severe thunderstorm capable of producing a 
  tornado was located near Spadra, or 3 miles south of Clarksville, 
  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...
  Clarksville...                    Lamar...
  Dover...                          Knoxville...
  Hector...                         Broomfield...
  Spadra...                         Tokalon...
  Holman...                         Lake Dardanelle...
  Morrison Bluff...                 New Spadra...
  Augsburg...                       Lutherville...
  Dublin...                         Long Pool Campground...
  Ludwig...                         Piney Bay Recreation Area...
  Treat...                          Pleasant Valley in Pope County...

This includes Interstate 40 between mile markers 54 and 68.
 
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 3533 9349 3547 9356 3567 9308 3545 9293
TIME...MOT...LOC 0354Z 246DEG 32KT 3541 9344 

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

$$

46
2 follow-up statements
134 
WWUS54 KLZK 290419
SVSLZK

Severe Weather Statement
National Weather Service Little Rock AR
1119 PM CDT Wed Apr 28 2021

ARC083-290428-
/O.CAN.KLZK.TO.W.0023.000000T0000Z-210429T0445Z/
Logan AR-
1119 PM CDT Wed Apr 28 2021

...THE TORNADO WARNING FOR NORTHEASTERN LOGAN COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved 
into Joneson County. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 200 AM CDT for western and
central Arkansas.

&&

LAT...LON 3543 9331 3555 9338 3567 9308 3549 9296
TIME...MOT...LOC 0418Z 237DEG 27KT 3551 9324 

$$

ARC071-115-290445-
/O.CON.KLZK.TO.W.0023.000000T0000Z-210429T0445Z/
Johnson AR-Pope AR-
1119 PM CDT Wed Apr 28 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT FOR EAST
CENTRAL JOHNSON AND NORTHWESTERN POPE COUNTIES...
    
At 1118 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Holman, or 13 miles east of Clarksville, moving
northeast at 35 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...
Broomfield...                     Holman...
Lutherville...                    Long Pool Campground...
Simpson...                        Treat...

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 3543 9331 3555 9338 3567 9308 3549 9296
TIME...MOT...LOC 0418Z 237DEG 27KT 3551 9324 

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

$$

46
410 
WWUS54 KLZK 290426
SVSLZK

Severe Weather Statement
National Weather Service Little Rock AR
1126 PM CDT Wed Apr 28 2021

ARC071-115-290436-
/O.CAN.KLZK.TO.W.0023.000000T0000Z-210429T0445Z/
Johnson AR-Pope AR-
1126 PM CDT Wed Apr 28 2021

...THE TORNADO WARNING FOR EAST CENTRAL JOHNSON AND NORTHWESTERN POPE
COUNTIES IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has weakened. 
Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 200 AM CDT for western and
central Arkansas.

&&

LAT...LON 3543 9331 3555 9338 3567 9308 3549 9296
TIME...MOT...LOC 0425Z 246DEG 32KT 3554 9316 

$$

46

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 28, 7:24 PM CDTSpecial Weather StatementLZKJohnson51 min
Apr 28, 9:17 PM CDTSevere Thunderstorm WarningLZKLogan, Scott43 min
Apr 28, 9:55 PM CDTSevere Thunderstorm WarningLZKJohnson, Logan65 min
Apr 28, 10:02 PM CDTTornado WarningLZKJohnson, Logan, Yell29 min
Apr 28, 10:29 PM CDTSevere Thunderstorm WarningLZKLogan, Scott, Yell46 min
Apr 28, 11:26 PM CDTFlash Flood WarningLZKBoone, Johnson, Logan, Marion, Newton, Pope and 1 more7 hr
Apr 28, 11:35 PM CDTSpecial Weather StatementLZKJohnson40 min
Apr 29, 12:22 AM CDTSpecial Weather StatementLZKPope, Van Buren53 min
Apr 29, 12:54 AM CDTSevere Thunderstorm WarningLZKCleburne, Stone, Van Buren51 min
Apr 29, 1:09 AM CDTSpecial Weather StatementLZKPolk36 min
Apr 29, 1:15 AM CDTFlash Flood WarningLZKBaxter, Marion, Pope, Searcy, Stone, Van Buren5 hr
Apr 29, 1:19 AM CDTSevere Thunderstorm WarningLZKPolk43 min
Apr 29, 1:24 AM CDTSpecial Weather StatementLZKScott51 min
Apr 29, 1:59 AM CDTFlash Flood WarningLZKLogan, Scott, Yell6 hr
Apr 29, 2:08 AM CDTSpecial Weather StatementLZKCleburne, Independence, Lawrence52 min
Apr 29, 2:26 AM CDTSpecial Weather StatementLZKGarland, Perry, Yell64 min
Apr 29, 2:59 AM CDTSpecial Weather StatementLZKConway, Faulkner61 min
Apr 29, 3:05 AM CDTSpecial Weather StatementLZKJackson25 min
Apr 29, 3:49 AM CDTSpecial Weather StatementLZKWhite, Woodruff41 min
Apr 29, 4:15 AM CDTRiver Flood WarningLZKFulton, Sharp16 hr
Apr 29, 4:28 AM CDTSpecial Weather StatementLZKWoodruff32 min
Apr 29, 4:33 AM CDTFlash Flood WarningLZKFulton, Izard, Lawrence, Randolph, Sharp4 hr
Apr 29, 4:35 AM CDTFlash Flood WarningLZKCleburne, Independence, Stone, Van Buren, White4 hr
Apr 29, 6:01 AM CDTFlash Flood WarningLZKGarland, Montgomery, Perry, Pike, Saline4 hr
Apr 29, 6:14 AM CDTAreal Flood WarningLZKBaxter, Boone, Johnson, Logan, Marion, Newton and 4 more6 hr
Apr 29, 7:59 AM CDTAreal Flood WarningLZKLogan, Scott, Yell6 hr
Apr 29, 8:09 AM CDTRiver Flood WarningLZKLawrence, Randolph34 hr
Apr 29, 8:28 AM CDTAreal Flood WarningLZKFulton, Izard, Lawrence, Randolph, Sharp6 hr
Apr 29, 9:36 AM CDTFlash Flood WarningLZKVan Buren4 hr
Apr 29, 9:50 AM CDTRiver Flood AdvisoryLZKSearcy4 hr
Apr 29, 10:32 AM CDTRiver Flood WarningLZKPope, Yell28 hr
Apr 29, 10:32 AM CDTRiver Flood WarningLZKConway, Perry60 hr
Apr 29, 10:32 AM CDTRiver Flood WarningLZKFaulkner, Perry44 hr
Apr 29, 10:32 AM CDTRiver Flood WarningLZKJefferson, Lincoln47 hr
Apr 29, 11:07 AM CDTFlash Flood WarningLZKConway, Johnson, Pope3 hr
Apr 29, 1:42 PM CDTRiver Flood WarningLZKIzard, Stone27 hr
Apr 29, 1:42 PM CDTRiver Flood WarningLZKIndependence44 hr
Apr 29, 1:48 PM CDTRiver Flood WarningLZKSearcy9 hr
Apr 29, 2:08 PM CDTRiver Flood WarningLZKIndependence, Jackson5 days
Apr 29, 2:08 PM CDTRiver Flood WarningLZKPrairie, White, Woodruff17 days
Apr 29, 2:08 PM CDTRiver Flood WarningLZKPrairie26 days

Nearby

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