Alert archive / Arkansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 133, NWS Memphis, TN

May 9, 2021Cross County, St. Francis County, Arkansas

NWS Memphis, TN issued this severe thunderstorm warning at May 9, 2021, 4:01 PM CDT for Cross County, St. Francis County, Arkansas. It was in force for 29 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 9, 2021, 4:01 PM CDT (21:01 UTC)
Expired: May 9, 2021, 4:30 PM CDT
In force: 29 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Cross County, AR, St. Francis County, AR

The radar

The Memphis radar (KNQA), 89 km from the middle of the area, began a volume at 21:03 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.

Issued	Product	Office	Lasted
May 9, 2:27 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 9.0 hours before the alert went out and 95 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 203 J/kg
Mixed-layer CIN: -439 J/kg
Mixed-layer LCL: 759 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 446 m²/s²
0-3 km storm-relative helicity: 571 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

759 
WUUS54 KMEG 092101
SVRMEG
ARC037-123-092130-
/O.NEW.KMEG.SV.W.0133.210509T2101Z-210509T2130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Memphis TN
401 PM CDT Sun May 9 2021

The National Weather Service in Memphis has issued a

* Severe Thunderstorm Warning for...
  North central St. Francis County in eastern Arkansas...
  Cross County in eastern Arkansas...

* Until 430 PM CDT.

* At 400 PM CDT, a severe thunderstorm was located near McCrory, or
  13 miles east of Augusta, moving east at 35 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Wynne, Parkin, Village Creek State Park, Caldwell, Colt, Hickory
  Ridge, Fair Oaks, Vanndale, Hydrick, Cottonwood Corner, Fitzgerald
  Crossing, McDonald, Brushy Lake, Round Pond, McElroy, Blackfish,
  Kinton, Hicks Station, Rosenbaum and River Front.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3542 9104 3530 9055 3505 9059 3512 9104
TIME...MOT...LOC 2100Z 266DEG 29KT 3524 9112 

HAIL...<.75IN
WIND...60MPH
 
$$

SWB

1 follow-up statement

430 
WWUS54 KMEG 092121
SVSMEG

Severe Weather Statement
National Weather Service Memphis TN
421 PM CDT Sun May 9 2021

ARC037-123-092130-
/O.EXP.KMEG.SV.W.0133.000000T0000Z-210509T2130Z/
St. Francis AR-Cross AR-
421 PM CDT Sun May 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL ST. FRANCIS AND
CROSS COUNTIES WILL EXPIRE AT 430 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 gusty
winds are still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
eastern Arkansas.

LAT...LON 3542 9104 3530 9055 3505 9059 3512 9104
TIME...MOT...LOC 2120Z 266DEG 29KT 3525 9094 

$$

SWB

The office that day

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

Issued	Product	Office	Counties	Lasted
May 9, 7:28 AM CDT	Special Weather Statement	MEG	Clay, Greene	32 min
May 9, 3:35 PM CDT	Special Weather Statement	MEG	Craighead	25 min
May 9, 3:39 PM CDT	Severe Thunderstorm Warning	MEG	Craighead, Mississippi, Poinsett	36 min
May 9, 3:47 PM CDT	Severe Thunderstorm Warning	MEG	Mississippi	28 min
May 9, 3:55 PM CDT	Severe Thunderstorm Warning	MEG	Cross, Poinsett	35 min
May 9, 4:17 PM CDT	Severe Thunderstorm Warning	MEG	Craighead, Mississippi, Poinsett	28 min
May 9, 4:20 PM CDT	Severe Thunderstorm Warning	MEG	Cross, Lee, St. Francis	40 min
May 9, 4:28 PM CDT	Tornado Warning	MEG	Lee, St. Francis	32 min
May 9, 4:50 PM CDT	Severe Thunderstorm Warning	MEG	Crittenden, Cross, Lee, St. Francis	40 min
May 9, 5:21 PM CDT	Severe Thunderstorm Warning	MEG	Lee	24 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2021 Every 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.