Alert archive / Arkansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 72, NWS Tulsa, OK

May 3, 2021Franklin County, Madison County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at May 3, 2021, 10:12 PM CDT for Franklin County, Madison County, Arkansas. It was in force for 48 min. 1 report 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, 10:12 PM CDT (03:12 UTC)
Expired: May 3, 2021, 11:00 PM CDT
In force: 48 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Franklin County, AR, Madison County, AR

The radar

The Western Arkansas radar (KSRX), 49 km from the middle of the area, began a volume at 03:16 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, 10:45 PM CDT	TSTM WND DMG	Boston, AR	SEVERAL TREES DOWN ALONG COUNTY RD. 4845 S OF BOSTON. TIME ESTIMATED FROM RADAR.

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, 3.2 hours before the alert went out and 156 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.

484 
WUUS54 KTSA 040312
SVRTSA
ARC047-087-040400-
/O.NEW.KTSA.SV.W.0072.210504T0312Z-210504T0400Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
1012 PM CDT Mon May 3 2021

The National Weather Service in Tulsa has issued a

* Severe Thunderstorm Warning for...
  Southeastern Madison County in northwestern Arkansas...
  Franklin County in west central Arkansas...

* Until 1100 PM CDT.

* At 1011 PM CDT, severe thunderstorms were located along a line
  extending from Fern to 6 miles southwest of Ozark to 2 miles
  southeast of Charleston, moving northeast at 60 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...
  Altus...                          Branch...
  Denning...                        Wiederkehr Village...
  Cass...                           Boston...
  Pettigrew...                      Fern...
  Fort Chaffee...                   Jethro...
  Red Star...                       Turners Bend...
  Cecil...                          Lonelm...
  Dutton...                         Etna...
  Barnes...                         Alix...

This line of storms has had a history of producing wind damage in 
the Fort Smith and Van Buren areas.

This includes Interstate 40 in Arkansas between mile markers 25 and
42.
 
LAT...LON 3577 9370 3538 9371 3537 9375 3542 9380
      3531 9381 3532 9392 3524 9392 3523 9402
      3520 9406 3522 9408 3538 9399 3551 9400
      3555 9404 3557 9402 3559 9408 3566 9407
      3566 9398 3572 9397 3588 9353 3576 9352
TIME...MOT...LOC 0311Z 238DEG 51KT 3565 9401 3555 9393 3542 9391 3528
9400

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

Lacy

2 follow-up statements

445 
WWUS54 KTSA 040332
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
1032 PM CDT Mon May 3 2021

ARC047-087-040400-
/O.CON.KTSA.SV.W.0072.000000T0000Z-210504T0400Z/
Madison AR-Franklin AR-
1032 PM CDT Mon May 3 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT
FOR SOUTHEASTERN MADISON AND FRANKLIN COUNTIES...

At 1031 PM CDT, severe thunderstorms were located along a line
extending from 4 miles north of Cass to 11 miles south of Saint Paul
to 4 miles northeast of Wiederkehr Village to 3 miles southwest of
Denning, moving northeast at 45 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...
Altus...                          Branch...
Denning...                        Wiederkehr Village...
Cass...                           Boston...
Pettigrew...                      Fern...
Fort Chaffee...                   Jethro...
Red Star...                       Turners Bend...
Cecil...                          Lonelm...
Dutton...                         Etna...
Barnes...                         Alix...

This line of storms has had a history of producing wind damage 
across west central Arkansas.

This includes Interstate 40 in Arkansas between mile markers 25 and
42.
 
LAT...LON 3577 9370 3538 9371 3537 9375 3542 9380
      3531 9381 3532 9392 3524 9392 3523 9402
      3520 9406 3522 9408 3538 9399 3551 9400
      3555 9404 3557 9402 3559 9408 3566 9407
      3566 9398 3572 9397 3588 9353 3576 9352
TIME...MOT...LOC 0331Z 237DEG 41KT 3575 9381 3565 9373 3552 9371 3538
9380

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

Lacy

008 
WWUS54 KTSA 040347
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
1047 PM CDT Mon May 3 2021

ARC047-040356-
/O.CAN.KTSA.SV.W.0072.000000T0000Z-210504T0400Z/
Franklin AR-
1047 PM CDT Mon May 3 2021

...THE SEVERE THUNDERSTORM WARNING FOR FRANKLIN 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
northwestern and west central Arkansas.

LAT...LON 3577 9382 3588 9353 3576 9352
TIME...MOT...LOC 0346Z 238DEG 51KT 3585 9361 3575 9353 3562 9351 3548
9360

$$

ARC087-040400-
/O.CON.KTSA.SV.W.0072.000000T0000Z-210504T0400Z/
Madison AR-
1047 PM CDT Mon May 3 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT
FOR SOUTHEASTERN MADISON COUNTY...

At 1046 PM CDT, severe thunderstorms were located along a line
extending from Boston to 7 miles west of Devils Knob to 6 miles north
of Woodland to 3 miles north of Hartman, moving northeast at 60 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...
Pettigrew...                      Boston...
Dutton...                         Red Star...

LAT...LON 3577 9382 3588 9353 3576 9352
TIME...MOT...LOC 0346Z 238DEG 51KT 3585 9361 3575 9353 3562 9351 3548
9360

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, 9:51 PM CDT	Severe Thunderstorm Warning	TSA	Crawford, Franklin, Madison, Sebastian, Washington	39 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, 10:19 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.