Alert archive / Arkansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 211, NWS Shreveport, LA

December 10, 20215 counties in Arkansas

NWS Shreveport, LA issued this severe thunderstorm warning at Dec 10, 2021, 7:30 PM CST for 5 counties in Arkansas. It was in force for 45 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: Dec 10, 2021, 7:30 PM CST (01:30 UTC)
Expired: Dec 10, 2021, 8:15 PM CST
In force: 45 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Hempstead County, AR, Howard County, AR, Little River County, AR, Nevada County, AR, Sevier County, AR

The radar

The Western Arkansas radar (KSRX), 157 km from the middle of the area, began a volume at 01:32 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
Dec 10, 6:34 PM CST	Tornado Watch	SPC	4 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 1.5 hours before the alert went out and 167 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: 1338 J/kg
Mixed-layer CIN: -32 J/kg
Mixed-layer LCL: 1005 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 243 m²/s²
0-3 km storm-relative helicity: 334 m²/s²
Significant tornado parameter: 2.6
Supercell composite: 10.4

Open this sounding in Storm Lab

The text

As transmitted.

967 
WUUS54 KSHV 110130
SVRSHV
ARC057-061-081-099-133-110215-
/O.NEW.KSHV.SV.W.0211.211211T0130Z-211211T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Shreveport LA
730 PM CST Fri Dec 10 2021

The National Weather Service in Shreveport has issued a

* Severe Thunderstorm Warning for...
  Central Little River County in southwestern Arkansas...
  Northeastern Hempstead County in southwestern Arkansas...
  Southern Sevier County in southwestern Arkansas...
  Southeastern Howard County in southwestern Arkansas...
  Northwestern Nevada County in southwestern Arkansas...

* Until 815 PM CST.

* At 729 PM CST, a severe thunderstorm was located near Ben Lomond,
  or 11 miles north of Ashdown, moving northeast at 50 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...
  Ashdown, Nashville, Mineral Springs, Dierks, Horatio, Lockesburg,
  Wilton, Blevins, Tollette, Winthrop, Ben Lomond, Corinth, Saratoga,
  Center Point, Oak Grove, McCaskill, Ozan, Silver Ridge, Central and
  Muddy Fork.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1100 PM CST for southwestern
Arkansas.

Prepare immediately for large hail and damaging winds. People outside
should move immediately to shelter inside a strong building. Stay
away from windows.


&&

LAT...LON 3401 9382 3401 9375 3398 9368 3398 9365
      3396 9362 3395 9353 3396 9347 3395 9342
      3396 9338 3393 9335 3366 9426 3393 9440
      3419 9384 3418 9382
TIME...MOT...LOC 0129Z 246DEG 54KT 3383 9419 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

05

1 follow-up statement

530 
WWUS54 KSHV 110157
SVSSHV

Severe Weather Statement
National Weather Service Shreveport LA
757 PM CST Fri Dec 10 2021

ARC081-110205-
/O.CAN.KSHV.SV.W.0211.000000T0000Z-211211T0215Z/
Little River AR-
757 PM CST Fri Dec 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL LITTLE RIVER COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 1100 PM CST for southwestern
Arkansas.

LAT...LON 3401 9382 3401 9375 3398 9368 3398 9365
      3396 9362 3395 9353 3396 9347 3395 9342
      3396 9338 3393 9335 3376 9393 3395 9408
      3409 9382
TIME...MOT...LOC 0155Z 246DEG 54KT 3399 9374 

$$

ARC057-061-099-133-110215-
/O.CON.KSHV.SV.W.0211.000000T0000Z-211211T0215Z/
Hempstead AR-Sevier AR-Howard AR-Nevada AR-
757 PM CST Fri Dec 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CST
FOR NORTHEASTERN HEMPSTEAD...SOUTHEASTERN SEVIER...SOUTHEASTERN
HOWARD AND NORTHWESTERN NEVADA COUNTIES...

At 755 PM CST, a severe thunderstorm was located near Crater Of 
Diamonds State Park, or near Murfreesboro, moving northeast at 50 
mph.

HAZARD...60 mph wind gusts and quarter size hail has been reported 
         with this storm.

SOURCE...Law enforcement.

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

Locations impacted include...
Nashville, Mineral Springs, Blevins, Tollette, Corinth, Saratoga,
Center Point, McCaskill and Ozan.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1100 PM CST for southwestern
Arkansas.

Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.

&&

LAT...LON 3401 9382 3401 9375 3398 9368 3398 9365
      3396 9362 3395 9353 3396 9347 3395 9342
      3396 9338 3393 9335 3376 9393 3395 9408
      3409 9382
TIME...MOT...LOC 0155Z 246DEG 54KT 3399 9374 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

05

The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 10, 6:15 PM CST	Severe Thunderstorm Warning	SHV	Little River	60 min
Dec 10, 7:05 PM CST	Severe Thunderstorm Warning Considerable damage threat	SHV	Little River, Sevier	55 min
Dec 10, 8:00 PM CST	Severe Thunderstorm Warning	SHV	Hempstead, Howard, Little River, Sevier	45 min
Dec 10, 8:28 PM CST	Severe Thunderstorm Warning	SHV	Hempstead, Howard, Nevada	62 min
Dec 10, 9:08 PM CST	Flash Flood Warning Considerable damage threat	SHV	Hempstead	4 hr
Dec 10, 9:22 PM CST	Severe Thunderstorm Warning	SHV	Hempstead, Nevada	29 min
Dec 10, 10:06 PM CST	Special Weather Statement	SHV	Little River	24 min
Dec 10, 10:20 PM CST	Severe Thunderstorm Warning	SHV	Little River, Miller	55 min
Dec 10, 10:58 PM CST	Severe Thunderstorm Warning	SHV	Hempstead, Lafayette, Nevada	62 min
Dec 10, 11:30 PM CST	Severe Thunderstorm Warning	SHV	Lafayette, Miller	45 min
Dec 11, 12:09 AM CST	Severe Thunderstorm Warning	SHV	Columbia, Lafayette	51 min
Dec 11, 1:15 AM CST	Special Weather Statement	SHV	Union	45 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.