Alert archive / Arkansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 184, NWS Memphis, TN

October 5, 2021Lee County, Phillips County, Arkansas

NWS Memphis, TN issued this severe thunderstorm warning at Oct 5, 2021, 4:26 PM CDT for Lee County, Phillips County, Arkansas. It was in force for 34 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
Oct 5, 2021, 4:26 PM CDT (21:26 UTC)
Expired
Oct 5, 2021, 5:00 PM CDT
In force
34 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Lee County, AR, Phillips County, AR

The radar

The Memphis radar (KNQA), 120 km from the middle of the area, began a volume at 21:30 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

Little Rock, AR (KLZK), launched 12:00Z, 9.4 hours before the alert went out and 87 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 2021-10-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 46 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 2021-10-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 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
46 J/kg
Mixed-layer CIN
-236 J/kg
Mixed-layer LCL
1385 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
27 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

160 
WUUS54 KMEG 052126
SVRMEG
ARC077-107-052200-
/O.NEW.KMEG.SV.W.0184.211005T2126Z-211005T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Memphis TN
426 PM CDT Tue Oct 5 2021

The National Weather Service in Memphis has issued a

* Severe Thunderstorm Warning for...
  Southwestern Lee County in eastern Arkansas...
  North central Phillips County in eastern Arkansas...

* Until 500 PM CDT.

* At 425 PM CDT, a severe thunderstorm was located near Lexa, or 7
  miles southeast of Marianna, moving southwest at 20 mph.

  HAZARD...Quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* Locations impacted include...
  Marvell, Lexa, Rondo, Lagrange, Jeffersonville, Poplar Grove,
  Haleside, Big Creek Corner, Barton, Wycamp, Latour, Kindall,
  Phillips Bayou, Turkey Scratch, Vineyard, Spring Creek, Cypress
  Corner and Delta Heritage Trails State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

&&

LAT...LON 3465 9105 3475 9068 3466 9061 3447 9078
      3464 9104
TIME...MOT...LOC 2125Z 067DEG 18KT 3467 9070 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH

$$

MJH
1 follow-up statement
311 
WWUS54 KMEG 052151
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
451 PM CDT Tue Oct 5 2021

ARC077-107-052200-
/O.EXP.KMEG.SV.W.0184.000000T0000Z-211005T2200Z/
Lee AR-Phillips AR-
451 PM CDT Tue Oct 5 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN LEE AND NORTH
CENTRAL PHILLIPS COUNTIES WILL EXPIRE AT 500 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However small hail
is still possible with this thunderstorm.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Memphis.

LAT...LON 3465 9105 3475 9068 3466 9061 3447 9078
      3464 9104
TIME...MOT...LOC 2150Z 067DEG 18KT 3462 9083 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 5, 4:17 PM CDTSpecial Weather StatementMEGPhillips58 min
Oct 5, 4:20 PM CDTSevere Thunderstorm WarningMEGPhillips25 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2021Every severe thunderstorm warning 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.