Alert archive / Arkansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 77, NWS Memphis, TN

April 9, 2021Phillips County, Arkansas; Coahoma County, Mississippi

NWS Memphis, TN issued this severe thunderstorm warning at Apr 9, 2021, 5:26 PM CDT for Phillips County, Arkansas; Coahoma County, Mississippi. It was in force for 49 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 9, 2021, 5:26 PM CDT (22:26 UTC)
Expired
Apr 9, 2021, 6:15 PM CDT
In force
49 min
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Phillips County, AR, Coahoma County, MS

The radar

The Little Rock radar (KLZK), 148 km from the middle of the area, began a volume at 22:27 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 9, 3:42 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 10.4 hours before the alert went out and 116 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 2021-04-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 12:00Z on 2021-04-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 108 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2139 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
108 m²/s²
0-3 km storm-relative helicity
141 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted.

093 
WUUS54 KMEG 092226
SVRMEG
ARC107-MSC027-092315-
/O.NEW.KMEG.SV.W.0077.210409T2226Z-210409T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Memphis TN
526 PM CDT Fri Apr 9 2021

The National Weather Service in Memphis has issued a

* Severe Thunderstorm Warning for...
  Southwestern Phillips County in eastern Arkansas...
  Southern Coahoma County in northwestern Mississippi...

* Until 615 PM CDT.

* At 525 PM CDT, severe thunderstorms were located along a line
  extending from near Merrisach Lake to near Rosedale to near
  Arkansas City, moving east at 45 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Clarksdale, White River National Wildlife Refuge, Dublin, Crumrod,
  Sherard, Lyon, Mattson, Mellwood, Rena Lara, Mosby Spur, Ferguson,
  Counts, Hopson, Bobo, Green Grove, Hillhouse, Beverly, Lurand,
  Lundell and Claremont.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3414 9108 3419 9109 3420 9109 3420 9108
      3422 9106 3422 9045 3399 9045 3399 9066
      3412 9066 3412 9112
TIME...MOT...LOC 2225Z 257DEG 38KT 3401 9128 3384 9109 3357 9118 

HAIL...1.00IN
WIND...60MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 9, 3:37 PM CDTSpecial Weather StatementMEGCraighead23 min
Apr 9, 3:45 PM CDTSpecial Weather StatementMEGCraighead30 min
Apr 9, 3:57 PM CDTSevere Thunderstorm WarningMEGCraighead, Greene, Mississippi, Poinsett48 min
Apr 9, 4:07 PM CDTSevere Thunderstorm WarningMEGClay, Craighead, Greene53 min
Apr 9, 4:19 PM CDTSevere Thunderstorm WarningMEGClay, Greene41 min
Apr 9, 5:24 PM CDTSpecial Weather StatementMEGLee36 min
Apr 9, 5:31 PM CDTSevere Thunderstorm WarningMEGLee, Phillips27 min
Apr 9, 5:50 PM CDTSevere Thunderstorm WarningMEGPhillips40 min
Apr 9, 6:04 PM CDTSpecial Weather StatementMEGSt. Francis26 min
Apr 9, 4:12 PM CDTSpecial Weather StatementMEGCoahoma, Quitman33 min
Apr 9, 5:10 PM CDTSpecial Weather StatementMEGTunica35 min
Apr 9, 5:36 PM CDTSevere Thunderstorm WarningMEGBenton, Marshall39 min
Apr 9, 6:08 PM CDTSpecial Weather StatementMEGUnion37 min
Apr 9, 6:31 PM CDTSpecial Weather StatementMEGCoahoma, Quitman, Tallahatchie29 min
Apr 9, 6:37 PM CDTSevere Thunderstorm WarningMEGLee, Tippah, Union38 min
Apr 9, 6:45 PM CDTTornado WarningMEGLee, Tippah, Union21 min
Apr 9, 6:57 PM CDTSevere Thunderstorm WarningMEGLee, Pontotoc, Union48 min
Apr 9, 6:59 PM CDTSpecial Weather StatementMEGPanola, Quitman, Tallahatchie, Tate, Yalobusha46 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2021Severe Thunderstorm Warnings in Mississippi, 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.