Alert archive / Arkansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 71, NWS Tulsa, OK

May 3, 20215 counties in Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at May 3, 2021, 9:51 PM CDT for 5 counties in Arkansas. It was in force for 39 min. 7 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 3, 2021, 9:51 PM CDT (02:51 UTC)
Expired: May 3, 2021, 10:30 PM CDT
In force: 39 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Crawford County, AR, Franklin County, AR, Madison County, AR, Sebastian County, AR, Washington County, AR

The radar

The Western Arkansas radar (KSRX), 39 km from the middle of the area, began a volume at 02:52 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 3, 9:52 PM CDT	TSTM WND DMG	Alma, AR	SEVERAL REPORTS OF TREES SNAPPED OR UPROOTED IN ALMA. PHOTOS POSTED ON SOCIAL MEDIA SHOW A LARGE TREE FALLEN ONTO A HOME. TIME ESTIMATED FROM RADAR.
May 3, 9:54 PM CDT	TSTM WND DMG	3 N Alma, AR	NUMEROUS TREES DOWN. TIME ESTIMATED FROM RADAR.
May 3, 9:55 PM CDT	TSTM WND DMG	Van Buren, AR	REPORT OF A TREE DOWNED ONTO A HOME.
May 3, 9:55 PM CDT	NON-TSTM WND DMG	Van Buren, AR	ROOF BLOWN OFF CRAWFORD COUNTY COURT HOUSE.
May 3, 10:00 PM CDT	TSTM WND DMG	Rudy, AR	POWER LINES DOWN.
May 3, 10:09 PM CDT	TORNADO	4 Wsw Piney, AR	A TORNADO UPROOTED NUMEROUS TREES AND BLEW DOWN POWER POLES.
May 3, 10:16 PM CDT	TSTM WND DMG	Vesta, AR	MULTIPLE REPORTS OF TREES AND POWER LINES DAMAGED BY THUNDERSTORM WINDS IN AND AROUND OZARK.

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

Springfield, MO (KSGF), launched 00:00Z, 2.9 hours before the alert went out and 161 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: 1558 J/kg
Mixed-layer CIN: -63 J/kg
Mixed-layer LCL: 972 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 150 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 4.1

Open this sounding in Storm Lab

The text

As transmitted.

042 
WUUS54 KTSA 040251
SVRTSA
ARC033-047-087-131-143-040330-
/O.NEW.KTSA.SV.W.0071.210504T0251Z-210504T0330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
951 PM CDT Mon May 3 2021

The National Weather Service in Tulsa has issued a

* Severe Thunderstorm Warning for...
  Southwestern Madison County in northwestern Arkansas...
  Franklin County in west central Arkansas...
  Crawford County in northwestern Arkansas...
  Northeastern Sebastian County in west central Arkansas...
  Southeastern Washington County in northwestern Arkansas...

* Until 1030 PM CDT.

* At 951 PM CDT, severe thunderstorms were located along a line
  extending from near Figure Five to 2 miles south of Alma to 3 miles
  east of Barling to Greenwood, moving northeast at 50 mph.

  HAZARD...70 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Locations in or near the path include...
  Van Buren...                      Ozark...
  Charleston...                     Cedarville...
  Mountainburg...                   Greenwood...
  Alma...                           Barling...
  Lavaca...                         Mulberry...
  Dyer...                           Altus...
  Branch...                         Denning...
  Chester...                        Rudy...
  Wiederkehr Village...             Bloomer...
  Lake Fort Smith...                Figure Five...

This includes the following highways,
 Interstate 40 in Arkansas between mile markers 4 and 41.
 Interstate 540 between mile markers 1 and 3.
 Interstate 49 between mile markers 22 and 36.

LAT...LON 3542 9373 3539 9379 3542 9380 3538 9381
      3513 9434 3526 9429 3539 9430 3554 9445
      3590 9390 3578 9373
TIME...MOT...LOC 0251Z 229DEG 43KT 3554 9434 3544 9424 3531 9424 3522
9426

HAIL...0.75IN
WIND...70MPH
 
$$

Lacy

1 follow-up statement

043 
WWUS54 KTSA 040309
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
1009 PM CDT Mon May 3 2021

ARC143-040318-
/O.CAN.KTSA.SV.W.0071.000000T0000Z-210504T0330Z/
Washington AR-
1009 PM CDT Mon May 3 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WASHINGTON COUNTY
IS CANCELLED...

The storms which prompted the warning will miss Washington 
county. Therefore the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 400 AM CDT for
northwestern and west central Arkansas.

LAT...LON 3542 9373 3539 9378 3542 9380 3538 9381
      3520 9419 3561 9425 3576 9407 3576 9396
      3586 9395 3590 9390 3578 9373
TIME...MOT...LOC 0308Z 238DEG 48KT 3563 9409 3553 9399 3540 9399 3531
9401

$$

ARC033-047-087-131-040330-
/O.CON.KTSA.SV.W.0071.000000T0000Z-210504T0330Z/
Madison AR-Franklin AR-Crawford AR-Sebastian AR-
1009 PM CDT Mon May 3 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT
FOR SOUTHWESTERN MADISON...FRANKLIN...CENTRAL CRAWFORD AND
NORTHEASTERN SEBASTIAN COUNTIES...

At 1008 PM CDT, severe thunderstorms were located along a line
extending from 4 miles southeast of Lake Fort Smith to 4 miles
northeast of Mulberry to 6 miles north of Branch to near Charleston,
moving northeast at 55 mph.

HAZARD...70 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations in or near the path include...
Ozark...                          Charleston...
Mountainburg...                   Greenwood...
Alma...                           Lavaca...
Mulberry...                       Dyer...
Altus...                          Branch...
Denning...                        Chester...
Wiederkehr Village...             Cass...
Bloomer...                        Lake Fort Smith...
Fern...                           Jethro...
Bidville...                       Crosses...

This includes the following highways,
 Interstate 40 in Arkansas between mile markers 12 and 41.
 Interstate 49 between mile markers 23 and 34.

LAT...LON 3542 9373 3539 9378 3542 9380 3538 9381
      3520 9419 3561 9425 3576 9407 3576 9396
      3586 9395 3590 9390 3578 9373
TIME...MOT...LOC 0308Z 238DEG 48KT 3563 9409 3553 9399 3540 9399 3531
9401

HAIL...0.75IN
WIND...70MPH
 
$$

Lacy

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 3, 8:53 PM CDT	Special Weather Statement	TSA	Crawford, Washington	37 min
May 3, 9:18 PM CDT	Severe Thunderstorm Warning	TSA	Crawford, Sebastian	57 min
May 3, 9:38 PM CDT	Tornado Warning	TSA	Crawford, Franklin, Sebastian	37 min
May 3, 10:02 PM CDT	Tornado Warning	TSA	Crawford, Franklin	15 min
May 3, 10:12 PM CDT	Flash Flood Warning	TSA	Crawford, Franklin, Sebastian	3 hr
May 3, 10:12 PM CDT	Special Weather Statement	TSA	Carroll	33 min
May 3, 10:12 PM CDT	Severe Thunderstorm Warning	TSA	Franklin, Madison	48 min
May 3, 10:19 PM CDT	Flash Flood Warning	TSA	Washington	3 hr
May 3, 10:21 PM CDT	Severe Thunderstorm Warning	TSA	Madison, Washington	39 min
May 3, 10:31 PM CDT	Severe Thunderstorm Warning	TSA	Carroll, Madison, Washington	44 min
May 3, 10:52 PM CDT	Special Weather Statement	TSA	Sebastian	23 min
May 3, 11:08 PM CDT	Severe Thunderstorm Warning	TSA	Carroll	52 min
May 3, 11:14 PM CDT	Severe Thunderstorm Warning	TSA	Madison	13 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.