Alert archive / Arkansas / Tornado Warnings in 2018

Tornado Warning 36, NWS Memphis, TN

August 20, 2018Greene County, Arkansas

NWS Memphis, TN issued this tornado warning at Aug 20, 2018, 5:30 PM CDT for Greene County, Arkansas. It was in force for 34 min. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Aug 20, 2018, 5:30 PM CDT (22:30 UTC)
Expired
Aug 20, 2018, 6:04 PM CDT
In force
34 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Greene County, AR

The radar

The Memphis radar (KNQA), 98 km from the middle of the area, began a volume at 22:31 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.

What was reported inside it

TimeReportWhereRemark
Aug 20, 5:30 PM CDTTSTM WND DMG2 W Paragould, ARLARGE TREE DOWN ON HOUSE ON 707 ROAD.
Aug 20, 5:30 PM CDTTSTM WND DMG3 Ene Crowleys Ridge St, ARSEMI TRUCK GRAIN HAULER OVERTURNED. OVERTURNED TRAILER HOME AND SEVERAL TREES DOWN. MOST DAMAGE OCCURRED ALONG 707 RD.
Aug 20, 5:30 PM CDTTSTM WND DMG3 Ene Crowleys Ridge St, ARWIND PICKED UP GRAIN TRAILER AND MOVED IT ABOUT 100 YARDS.
Aug 20, 5:35 PM CDTTSTM WND DMGParagould, ARSEVERAL TREES DOWN AROUND PARAGOULD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

IssuedProductOfficeLasted
Aug 20, 12:46 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Little Rock, AR (KBYH), launched 12:00Z, 10.5 hours before the alert went out and 147 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, Little Rock, AR at 12:00Z on 2018-08-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 904 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, Little Rock, AR at 12:00Z on 2018-08-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 81 square meters per square second.193958Sfc1 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
904 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
737 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
81 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.5
Supercell composite
3.7

Open this sounding in Storm Lab

The text

As transmitted.

134 
WFUS54 KMEG 202230
TORMEG
ARC055-202315-
/O.NEW.KMEG.TO.W.0036.180820T2230Z-180820T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Memphis TN
530 PM CDT MON AUG 20 2018

The National Weather Service in Memphis has issued a

* Tornado Warning for...
  Southeastern Greene County in eastern Arkansas...

* Until 615 PM CDT.

* At 530 PM CDT, a severe thunderstorm producing a tornado was
  located over Crowleys Ridge State Park, moving east at 20 mph.

  HAZARD...Tornado.

  SOURCE...Weather spotters reported funnel cloud.

  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...
  Paragould, Marmaduke, Oak Grove Heights, Halliday, Brighton, Cotton
  Belt, Finch, Bard, Noxburn and Bertig.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a storm shelter 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 3620 9036 3607 9033 3602 9036 3599 9063
      3607 9067
TIME...MOT...LOC 2230Z 250DEG 18KT 3604 9062 

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

$$
4 follow-up statements
317 
WWUS54 KMEG 202244
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
544 PM CDT MON AUG 20 2018

ARC055-202315-
/O.CON.KMEG.TO.W.0036.000000T0000Z-180820T2315Z/
Greene AR-
544 PM CDT MON AUG 20 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR CENTRAL
GREENE COUNTY...
    
At 544 PM CDT, doppler radar indicated a severe thunderstorm
producing a tornado was located near Crowleys Ridge State Park,
moving east 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 impacted include...
Paragould, Oak Grove Heights, Halliday, Brighton, Cotton Belt, Bard,
Noxburn and Bertig.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a storm shelter 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 3618 9036 3607 9033 3603 9035 3603 9054
      3608 9057
TIME...MOT...LOC 2244Z 249DEG 22KT 3603 9059 

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

$$
124 
WWUS54 KMEG 202245
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
545 PM CDT MON AUG 20 2018

ARC055-202315-
/O.CON.KMEG.TO.W.0036.000000T0000Z-180820T2315Z/
Greene AR-
545 PM CDT MON AUG 20 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR CENTRAL
GREENE COUNTY...
    
At 545 PM CDT, doppler radar indicated a severe thunderstorm
producing a tornado was located over Paragould, moving east 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 impacted include...
Paragould, Oak Grove Heights, Halliday, Brighton, Cotton Belt, Bard,
Noxburn and Bertig.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a storm shelter 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 3618 9036 3607 9033 3603 9035 3603 9054
      3608 9057
TIME...MOT...LOC 2245Z 254DEG 22KT 3606 9048 

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

$$
686 
WWUS54 KMEG 202255
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
555 PM CDT MON AUG 20 2018

ARC055-202315-
/O.CON.KMEG.TO.W.0036.000000T0000Z-180820T2315Z/
Greene AR-
555 PM CDT MON AUG 20 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR EAST
CENTRAL GREENE COUNTY...
    
At 555 PM CDT, doppler radar indicated a severe thunderstorm
producing a tornado was located near Paragould, moving east 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 impacted include...
Cotton Belt, Brighton, Bard and Bertig. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a storm shelter 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 3614 9035 3607 9033 3605 9036 3605 9045
      3611 9043
TIME...MOT...LOC 2255Z 260DEG 21KT 3607 9041 

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

$$
667 
WWUS54 KMEG 202304
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
604 PM CDT MON AUG 20 2018

ARC055-202314-
/O.CAN.KMEG.TO.W.0036.000000T0000Z-180820T2315Z/
Greene AR-
604 PM CDT MON AUG 20 2018

...THE TORNADO WARNING FOR EAST CENTRAL GREENE COUNTY IS CANCELLED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.

A Severe Thunderstorm Watch remains in effect until 800 PM CDT for
eastern Arkansas.

LAT...LON 3614 9035 3607 9033 3605 9036 3605 9045
      3611 9043
TIME...MOT...LOC 2303Z 250DEG 18KT 3609 9036 

$$

The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 19, 10:41 PM CDTSpecial Weather StatementMEGLawrence49 min
Aug 19, 11:29 PM CDTSpecial Weather StatementMEGLawrence31 min
Aug 20, 9:42 AM CDTSpecial Weather StatementMEGCross, St. Francis48 min
Aug 20, 10:27 AM CDTSpecial Weather StatementMEGCrittenden48 min
Aug 20, 2:07 PM CDTSpecial Weather StatementMEGLee23 min
Aug 20, 3:13 PM CDTSpecial Weather StatementMEGRandolph32 min
Aug 20, 3:20 PM CDTSevere Thunderstorm WarningMEGPhillips40 min
Aug 20, 3:57 PM CDTSpecial Weather StatementMEGCross48 min
Aug 20, 4:07 PM CDTSpecial Weather StatementMEGPhillips38 min
Aug 20, 4:11 PM CDTSevere Thunderstorm WarningMEGPhillips49 min
Aug 20, 4:13 PM CDTSpecial Weather StatementMEGClay47 min
Aug 20, 4:24 PM CDTSevere Thunderstorm WarningMEGCross, St. Francis51 min
Aug 20, 4:45 PM CDTSpecial Weather StatementMEGClay15 min
Aug 20, 4:54 PM CDTSevere Thunderstorm WarningMEGCrittenden, Lee, St. Francis51 min
Aug 20, 4:57 PM CDTSevere Thunderstorm WarningMEGCrittenden, Cross, St. Francis48 min
Aug 20, 5:28 PM CDTSpecial Weather StatementMEGClay17 min
Aug 20, 5:39 PM CDTSevere Thunderstorm WarningMEGCrittenden51 min
Aug 20, 5:41 PM CDTSevere Thunderstorm WarningMEGCrittenden, Lee, St. Francis49 min
Aug 20, 5:51 PM CDTSpecial Weather StatementMEGSt. Francis39 min
Aug 20, 6:30 PM CDTSevere Thunderstorm WarningMEGLee26 min
Aug 20, 6:37 PM CDTSpecial Weather StatementMEGGreene38 min

Nearby

Tornado Warnings in Arkansas, 2018Every tornado warning in 2018Tornadoes in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.