Alert archive / Arkansas / Tornado Warnings in 2020

Tornado Warning 37, NWS Tulsa, OK

May 22, 2020Sebastian County, Arkansas

NWS Tulsa, OK issued this tornado warning at May 22, 2020, 9:42 PM CDT for Sebastian County, Arkansas. It was in force for 19 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 22, 2020, 9:42 PM CDT (02:42 UTC)
Expired
May 22, 2020, 10:01 PM CDT
In force
19 min
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.25 in

County Sebastian County, AR

The radar

The Western Arkansas radar (KSRX), 32 km from the middle of the area, began a volume at 02:42 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.

IssuedProductOfficeLasted
May 22, 7:34 PM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 2.7 hours before the alert went out and 214 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-pSkew-T log-p diagram, Springfield, MO at 00:00Z on 2020-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 353 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 2020-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 191 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
353 J/kg
Mixed-layer CIN
-178 J/kg
Mixed-layer LCL
993 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
191 m²/s²
0-3 km storm-relative helicity
241 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.8

Open this sounding in Storm Lab

The text

As transmitted.

981 
WFUS54 KTSA 230242
TORTSA
ARC131-230315-
/O.NEW.KTSA.TO.W.0037.200523T0242Z-200523T0315Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tulsa OK
942 PM CDT Fri May 22 2020

The National Weather Service in Tulsa has issued a

* Tornado Warning for...
  South central Sebastian County in west central Arkansas...

* Until 1015 PM CDT.
    
* At 942 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 3 miles north of Oliver, moving east at 20 mph.

  HAZARD...Tornado and half dollar size hail.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations in or near the path include...
  Liberty...                        

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3496 9426 3496 9430 3505 9431 3507 9425
      3506 9425 3506 9423 3497 9423
TIME...MOT...LOC 0242Z 267DEG 16KT 3498 9427 

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$
1 follow-up statement
177 
WWUS54 KTSA 230301
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
1001 PM CDT Fri May 22 2020

ARC131-230310-
/O.CAN.KTSA.TO.W.0037.000000T0000Z-200523T0315Z/
Sebastian AR-
1001 PM CDT Fri May 22 2020

...THE TORNADO WARNING FOR SOUTH CENTRAL SEBASTIAN COUNTY IS
CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 200 AM CDT for
west central Arkansas.

LAT...LON 3496 9426 3496 9430 3505 9431 3507 9425
      3506 9425 3506 9423 3497 9423
TIME...MOT...LOC 0259Z 267DEG 16KT 3498 9417 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 22, 7:43 PM CDTSevere Thunderstorm WarningTSASebastian47 min
May 22, 8:26 PM CDTSevere Thunderstorm WarningTSASebastian49 min
May 22, 8:47 PM CDTTornado WarningTSASebastian58 min
May 22, 8:51 PM CDTSevere Thunderstorm WarningTSASebastian54 min
May 22, 9:02 PM CDTTornado WarningTSASebastian58 min
May 22, 9:06 PM CDTSevere Thunderstorm WarningTSASebastian54 min
May 22, 9:56 PM CDTSevere Thunderstorm WarningTSASebastian49 min
May 22, 10:15 PM CDTSevere Thunderstorm WarningTSAFranklin, Sebastian60 min
May 22, 10:42 PM CDTFlash Flood WarningTSASebastian6 hr
May 22, 11:28 PM CDTSpecial Weather StatementTSASebastian47 min
May 23, 12:28 AM CDTSevere Thunderstorm WarningTSASebastian47 min

Nearby

Tornado Warnings in Arkansas, 2020Every tornado warning in 2020Tornadoes in 2020

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.