Alert archive / Arkansas / Tornado Warnings in 2019

Tornado Warning 45, NWS Tulsa, OK

May 18, 20194 counties in Arkansas

NWS Tulsa, OK issued this tornado warning at May 18, 2019, 2:08 PM CDT for 4 counties in Arkansas. It was in force for 37 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 18, 2019, 2:08 PM CDT (19:08 UTC)
Expired
May 18, 2019, 2:45 PM CDT
In force
37 min
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

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

The radar

The Western Arkansas radar (KSRX), 51 km from the middle of the area, began a volume at 19:09 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 18, 9:10 AM CDTTornado WatchSPC8 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 7.1 hours before the alert went out and 136 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 12:00Z on 2019-05-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 717 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 12:00Z on 2019-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 345 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
717 J/kg
Mixed-layer CIN
-216 J/kg
Mixed-layer LCL
969 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
345 m²/s²
0-3 km storm-relative helicity
385 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

084 
WFUS54 KTSA 181908
TORTSA
ARC033-047-087-143-181945-
/O.NEW.KTSA.TO.W.0045.190518T1908Z-190518T1945Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tulsa OK
208 PM CDT Sat May 18 2019

The National Weather Service in Tulsa has issued a

* Tornado Warning for...
  Southwestern Madison County in northwestern Arkansas...
  Northwestern Franklin County in west central Arkansas...
  Northeastern Crawford County in northwestern Arkansas...
  Southeastern Washington County in northwestern Arkansas...

* Until 245 PM CDT.
    
* At 208 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 3 miles west of Chester, moving east at 50 mph.

  HAZARD...Tornado.

  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...
  Mountainburg...                   Winslow...
  Chester...                        Cass...
  Lake Fort Smith...                Fern...
  Bidville...                       Delaney...
  Patrick...                        Combs...
  Locke...                          Turners Bend...
  Mount Gayler...                   

This includes Interstate 49 between mile markers 30 and 40.
 
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 3560 9428 3572 9430 3590 9384 3566 9378
TIME...MOT...LOC 1908Z 251DEG 43KT 3567 9424 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

69
1 follow-up statement
786 
WWUS54 KTSA 181927
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
227 PM CDT Sat May 18 2019

ARC033-047-087-143-181945-
/O.CON.KTSA.TO.W.0045.000000T0000Z-190518T1945Z/
Madison AR-Franklin AR-Crawford AR-Washington AR-
227 PM CDT Sat May 18 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 245 PM CDT FOR
SOUTHWESTERN MADISON...NORTHWESTERN FRANKLIN...NORTHEASTERN CRAWFORD
AND SOUTHEASTERN WASHINGTON COUNTIES...
    
At 226 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Fern, moving east at 40 mph.

HAZARD...Tornado.

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...
Cass...                           Fern...
Patrick...                        Bidville...
Combs...                          Locke...
Turners Bend...                   Mount Gayler...
Delaney...                        

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 3562 9408 3578 9414 3590 9384 3566 9378
TIME...MOT...LOC 1926Z 268DEG 36KT 3567 9403 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

69

The office that day

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

IssuedProductOfficeCountiesLasted
May 18, 1:08 PM CDTSevere Thunderstorm WarningTSABenton, Washington67 min
May 18, 1:34 PM CDTSevere Thunderstorm WarningTSACrawford, Franklin, Sebastian, Washington41 min
May 18, 1:38 PM CDTTornado WarningTSASebastian30 min
May 18, 1:54 PM CDTTornado WarningTSACrawford, Sebastian36 min
May 18, 2:02 PM CDTTornado WarningTSASebastian28 min
May 18, 2:04 PM CDTTornado WarningTSASebastian19 min
May 18, 2:11 PM CDTSevere Thunderstorm WarningTSACrawford, Franklin, Madison, Sebastian, Washington64 min
May 18, 2:13 PM CDTTornado WarningTSAFranklin, Sebastian32 min
May 18, 2:15 PM CDTSevere Thunderstorm WarningTSACarroll, Madison, Washington60 min
May 18, 2:23 PM CDTTornado WarningTSACrawford, Franklin23 min
May 18, 2:40 PM CDTTornado WarningTSAFranklin, Madison35 min
May 18, 2:49 PM CDTSevere Thunderstorm WarningTSABenton, Carroll, Madison42 min

Nearby

Tornado Warnings in Arkansas, 2019Every tornado warning in 2019Tornadoes in 2019

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.