Alert archive / Arkansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 110, NWS Shreveport, LA

May 4, 20215 counties in Arkansas; Bowie County, Texas

NWS Shreveport, LA issued this severe thunderstorm warning at May 4, 2021, 12:34 AM CDT for 5 counties in Arkansas; Bowie County, Texas. It was in force for 41 min. 9 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: May 4, 2021, 12:34 AM CDT (05:34 UTC)
Expired: May 4, 2021, 1:15 AM CDT
In force: 41 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Hempstead County, AR, Howard County, AR, Little River County, AR, Miller County, AR, Sevier County, AR, Bowie County, TX

The radar

The Shreveport radar (KSHV), 145 km from the middle of the area, began a volume at 05:37 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

Time	Report	Where	Remark
May 4, 12:35 AM CDT	TSTM WND DMG	Horatio, AR	TREES AND POWER LINES DOWN.
May 4, 12:38 AM CDT	TSTM WND DMG	1 Nne Lockesburg, AR	MULTIPLE TREES DOWN ON HIGHWAY 71 NEAR LOCKESBURG.
May 4, 12:38 AM CDT	TSTM WND DMG	Ashdown, AR	NUMEROUS TREES AND POWER LINES DOWN ACROSS MUCH OF THE COUNTY. A TREE FELL ON A HOME ON NORTH STEWART STREET IN ASHDOWN. NUMEROUS POWER POLES AND LINES WERE SNAPPED ON LR 35, TRAPPING A VEHICLE.
May 4, 12:40 AM CDT	TSTM WND DMG	3 Wnw Ben Lomond, AR	MULTIPLE TREES DOWN ACROSS HIGHWAY 71 IN THE FALLS CHAPEL COMMUNITY.
May 4, 12:46 AM CDT	TSTM WND DMG	1 Nne Texarkana, TX	REPORT FROM MPING: 1-INCH TREE LIMBS BROKEN; SHINGLES BLOWN OFF.
May 4, 12:50 AM CDT	TSTM WND GST 46	Texarkana, TX	OBSERVED POWER FLASHES AS WELL.
May 4, 12:57 AM CDT	TSTM WND DMG	Nashville, AR	THE SEWAGE PLANT IN SOUTH NASHVILLE THAT HAD ITS ROOF PEELED OFF BY THE STRONG WINDS. FIRE DEPT REMOVED TREES THAT BLOCKED MOST COUNTY ROADS & MAIN HIGHWAYS IN THE NASHVILLE AREA. POWER POLE KNOCKED DOWN AND HAD TO BE REPLACED BY ELECTRIC CREWS.
May 4, 12:59 AM CDT	TSTM WND DMG	1 Nne Nashville, AR	MEDIA REPORTS SEVERAL TREES DOWN ACROSS THE NASHVILLE AREA. HIGHWAY 371 NEAR LONGVIEW ROAD, HIGHWAY 278 NEAR JAMISON ROAD, AND HIGHWAY 355 AT MINE CREEK. ADDITIONAL REPORTS OF A TREE DOWN ON A HOUSE IN NASHVILLE.
May 4, 1:05 AM CDT	TSTM WND DMG	Washington, AR	LIMBS DOWN OF ALL SIZES IN HISTORIC WASHINGTON STATE PARK, ALSO LARGE PINE TREE BLOWN DOWN IN THE PIONEER CEMETERY.

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.

Issued	Product	Office	Lasted
May 3, 9:10 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 5.6 hours before the alert went out and 142 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: 2938 J/kg
Mixed-layer CIN: -99 J/kg
Mixed-layer LCL: 1253 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 101 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 3.5

Open this sounding in Storm Lab

The text

As transmitted.

253 
WUUS54 KSHV 040534
SVRSHV
ARC057-061-081-091-133-TXC037-040615-
/O.NEW.KSHV.SV.W.0110.210504T0534Z-210504T0615Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Shreveport LA
1234 AM CDT Tue May 4 2021

The National Weather Service in Shreveport has issued a

* Severe Thunderstorm Warning for...
  Little River County in southwestern Arkansas...
  Hempstead County in southwestern Arkansas...
  Northern Miller County in southwestern Arkansas...
  Sevier County in southwestern Arkansas...
  Howard County in southwestern Arkansas...
  Eastern Bowie County in northeastern Texas...

* Until 115 AM CDT.

* At 1233 AM CDT, severe thunderstorms were located along a line
  extending from near Horatio to near Richmond to Redwater, moving
  northeast at 60 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated. Trees have been downed across Franklin, Titus, 
           and Bowie Counties with these storms. 

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

* Locations impacted include...
  Texarkana, Hope, De Queen, Wake Village, Ashdown, Nashville,
  Mineral Springs, Dierks, Horatio, Foreman, Nash, Hooks, Redwater,
  Red Lick, Lockesburg, Wilton, Blevins, Perrytown, Tollette and
  Fulton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3419 9392 3418 9382 3401 9382 3399 9370
      3396 9362 3395 9353 3396 9349 3348 9350
      3348 9372 3346 9374 3344 9373 3343 9375
      3344 9371 3342 9373 3341 9372 3328 9430
      3367 9447 3399 9447 3420 9393
TIME...MOT...LOC 0533Z 246DEG 52KT 3389 9440 3369 9424 3334 9424 

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

15

1 follow-up statement

965 
WWUS54 KSHV 040604
SVSSHV

Severe Weather Statement
National Weather Service Shreveport LA
104 AM CDT Tue May 4 2021

TXC037-040613-
/O.CAN.KSHV.SV.W.0110.000000T0000Z-210504T0615Z/
Bowie TX-
104 AM CDT Tue May 4 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN BOWIE COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned area. 
Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 400 AM CDT for
southwestern Arkansas.

LAT...LON 3419 9392 3418 9382 3401 9382 3399 9370
      3396 9362 3395 9353 3396 9349 3348 9350
      3348 9372 3346 9374 3344 9373 3343 9375
      3344 9371 3342 9373 3341 9372 3336 9396
      3389 9400 3414 9409 3420 9393
TIME...MOT...LOC 0603Z 258DEG 54KT 3416 9387 3396 9374 3370 9371 3338
9386

$$

ARC057-061-081-091-133-040615-
/O.CON.KSHV.SV.W.0110.000000T0000Z-210504T0615Z/
Little River AR-Hempstead AR-Miller AR-Sevier AR-Howard AR-
104 AM CDT Tue May 4 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 AM CDT
FOR SOUTHEASTERN LITTLE RIVER...HEMPSTEAD...NORTHERN MILLER...EASTERN
SEVIER AND SOUTHEASTERN HOWARD COUNTIES...

At 104 AM CDT, severe thunderstorms were located along a line
extending from 7 miles north of Corinth to 6 miles east of Nashville
to near Washington to near Genoa, moving east at 60 mph.

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

SOURCE...Radar indicated. Trees and power lines have been downed across 
         Sevier and Bowie Counties with these storms. 

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

Locations impacted include...
Texarkana, Hope, Nashville, Mineral Springs, Dierks, Blevins,
Perrytown, Tollette, Fulton, Washington, Corinth, Center Point,
Genoa, Saratoga, Mandeville, McCaskill, Ozan, McNab, Patmos and
Oakhaven.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3419 9392 3418 9382 3401 9382 3399 9370
      3396 9362 3395 9353 3396 9349 3348 9350
      3348 9372 3346 9374 3344 9373 3343 9375
      3344 9371 3342 9373 3341 9372 3336 9396
      3389 9400 3414 9409 3420 9393
TIME...MOT...LOC 0603Z 258DEG 54KT 3416 9387 3396 9374 3370 9371 3338
9386

HAIL...0.75IN
WIND...60MPH
 
$$

15

The office that day

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

Issued	Product	Office	Counties	Lasted
May 3, 11:44 PM CDT	Severe Thunderstorm Warning	SHV	Little River	61 min
May 3, 11:59 PM CDT	Special Weather Statement	SHV	Sevier	61 min
May 4, 12:25 AM CDT	Severe Thunderstorm Warning	SHV	Howard, Little River, Sevier	34 min
May 4, 1:19 AM CDT	Special Weather Statement	SHV	Hempstead, Nevada	41 min
May 4, 12:28 PM CDT	Severe Thunderstorm Warning	SHV	Union	47 min
May 3, 10:55 PM CDT	Severe Thunderstorm Warning	SHV	Camp, Franklin, Red River, Smith, Titus, Upshur and 1 more	65 min
May 4, 1:10 AM CDT	Severe Thunderstorm Warning	SHV	Gregg, Smith, Upshur, Wood	50 min
May 4, 4:54 AM CDT	Special Weather Statement	SHV	Gregg, Harrison	51 min
May 4, 5:13 AM CDT	Special Weather Statement	SHV	Rusk	32 min
May 4, 10:15 AM CDT	Special Weather Statement	SHV	Angelina, Nacogdoches	45 min
May 4, 10:15 AM CDT	Special Weather Statement	SHV	Harrison	30 min
May 4, 10:40 AM CDT	Special Weather Statement	SHV	Nacogdoches, San Augustine, Shelby	50 min
May 4, 11:07 AM CDT	Severe Thunderstorm Warning	SHV	Panola, Shelby	38 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2021 Severe Thunderstorm Warnings in Texas, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.