Alert archive / Arkansas / Tornado Warnings in 2021

Tornado Warning 25, NWS Little Rock, AR

May 18, 2021Conway County, Faulkner County, Perry County, Arkansas

NWS Little Rock, AR issued this tornado warning at May 18, 2021, 7:33 PM CDT for Conway County, Faulkner County, Perry County, Arkansas. It was in force for 16 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
May 18, 2021, 7:33 PM CDT (00:33 UTC)
Expired
May 18, 2021, 7:49 PM CDT
In force
16 min
Issued by
NWS Little Rock, AR
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties Conway County, AR, Faulkner County, AR, Perry County, AR

The radar

The Little Rock radar (KLZK), 47 km from the middle of the area, began a volume at 00:33 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 00:00Z, 0.6 hours before the alert went out and 223 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 2021-05-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 464 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 2021-05-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 square meters per square second.1939Sfc1 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
464 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
986 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
43 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

684 
WFUS54 KLZK 190033
TORLZK
ARC029-045-105-190100-
/O.NEW.KLZK.TO.W.0025.210519T0033Z-210519T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Little Rock AR
733 PM CDT Tue May 18 2021

The National Weather Service in Little Rock has issued a

* Tornado Warning for...
  Northeastern Perry County in central Arkansas...
  West central Faulkner County in central Arkansas...
  Southeastern Conway County in central Arkansas...

* Until 800 PM CDT.
    
* At 733 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Morrilton, 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 impacted include...
  Conway...                         Morrilton...
  Menifee...                        Houston...
  Hill Creek...                     Springfield...
  Plumerville...                    Mt Olive in Conway County...

This includes Interstate 40 between mile markers 109 and 121.
 
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 3503 9272 3515 9275 3530 9253 3512 9249
TIME...MOT...LOC 0033Z 239DEG 25KT 3512 9267 

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

$$

DTC
2 follow-up statements
138 
WWUS54 KLZK 190037
SVSLZK

Severe Weather Statement
National Weather Service Little Rock AR
737 PM CDT Tue May 18 2021

ARC105-190047-
/O.CAN.KLZK.TO.W.0025.000000T0000Z-210519T0100Z/
Perry AR-
737 PM CDT Tue May 18 2021

...THE TORNADO WARNING FOR NORTHEASTERN PERRY COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

LAT...LON 3528 9252 3516 9250 3511 9262 3511 9263
      3510 9265 3508 9270 3513 9275 3515 9275
      3530 9253
TIME...MOT...LOC 0037Z 234DEG 24KT 3514 9265 

$$

ARC029-045-190100-
/O.CON.KLZK.TO.W.0025.000000T0000Z-210519T0100Z/
Faulkner AR-Conway AR-
737 PM CDT Tue May 18 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CDT FOR WEST
CENTRAL FAULKNER AND SOUTHEASTERN CONWAY COUNTIES...
    
At 737 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Morrilton, 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 impacted include...
Morrilton...                      Menifee...
Hill Creek...                     Springfield...
Plumerville...                    Mt Olive in Conway County...

This includes Interstate 40 between mile markers 109 and 118.
 
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 3528 9252 3516 9250 3511 9262 3511 9263
      3510 9265 3508 9270 3513 9275 3515 9275
      3530 9253
TIME...MOT...LOC 0037Z 234DEG 24KT 3514 9265 

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

$$

DTC
618 
WWUS54 KLZK 190049
SVSLZK

Severe Weather Statement
National Weather Service Little Rock AR
749 PM CDT Tue May 18 2021

ARC029-045-190059-
/O.CAN.KLZK.TO.W.0025.000000T0000Z-210519T0100Z/
Faulkner AR-Conway AR-
749 PM CDT Tue May 18 2021

...THE TORNADO WARNING FOR WEST CENTRAL FAULKNER AND SOUTHEASTERN
CONWAY 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.  However gusty winds are
still possible with this thunderstorm.

LAT...LON 3528 9252 3516 9250 3511 9262 3511 9263
      3510 9265 3508 9270 3513 9275 3515 9275
      3530 9253
TIME...MOT...LOC 0048Z 239DEG 25KT 3518 9256 

$$

DTC

The office that day

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

IssuedProductOfficeCountiesLasted
May 18, 7:07 PM CDTSpecial Weather StatementLZKConway, Pope, Saline53 min
May 18, 7:21 PM CDTSpecial Weather StatementLZKClark39 min
May 18, 8:04 PM CDTSpecial Weather StatementLZKPulaski41 min
May 18, 8:08 PM CDTSpecial Weather StatementLZKFaulkner37 min
May 18, 8:22 PM CDTSpecial Weather StatementLZKFaulkner38 min
May 18, 8:34 PM CDTSevere Thunderstorm WarningLZKFaulkner, Pulaski20 min
May 18, 8:42 PM CDTFlash Flood WarningLZKGarland, Montgomery, Perry4 hr
May 18, 8:50 PM CDTFlash Flood WarningLZKFaulkner, Pulaski, Van Buren5 hr
May 18, 8:54 PM CDTRiver Flood AdvisoryLZKPrairie, White, Woodruff13 hr
May 18, 8:56 PM CDTFlash Flood WarningLZKFaulkner, Grant, Pulaski, Saline5 hr
May 18, 9:25 PM CDTFlash Flood WarningLZKClark, Dallas, Ouachita3 hr
May 18, 10:00 PM CDTFlash Flood WarningLZKCleburne, Faulkner, Lonoke, Pulaski, Van Buren, White3 hr
May 18, 10:34 PM CDTFlash Flood WarningLZKCalhoun, Dallas, Grant, Ouachita4 hr
May 18, 10:51 PM CDTFlash Flood WarningLZKGrant, Pulaski, Saline118 min
May 19, 10:18 AM CDTRiver Flood WarningLZKPrairie, White, Woodruff35 hr
May 19, 11:28 AM CDTFlash Flood WatchLZKClark, Cleburne, Conway, Dallas, Faulkner, Garland and 9 more32 hr
May 19, 4:43 PM CDTFlash Flood WarningLZKBradley, Calhoun, Cleveland, Dallas, Grant3 hr
May 19, 5:34 PM CDTFlash Flood WarningLZKFaulkner, Grant, Perry, Pulaski, Saline2 hr

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.