Alert archive / Oklahoma / Tornado Warnings in 2020

Tornado Warning 29, NWS Tulsa, OK

April 28, 2020Pittsburg County, Oklahoma

NWS Tulsa, OK issued this tornado warning at Apr 28, 2020, 9:04 PM CDT for Pittsburg County, Oklahoma. It was in force for 22 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
Apr 28, 2020, 9:04 PM CDT (02:04 UTC)
Expired
Apr 28, 2020, 9:26 PM CDT
In force
22 min
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.5 in

County Pittsburg County, OK

The radar

The Western Arkansas radar (KSRX), 136 km from the middle of the area, began a volume at 02:05 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
Apr 28, 3:18 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 2.1 hours before the alert went out and 170 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, Norman, OK at 00:00Z on 2020-04-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4384 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 2020-04-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 106 square meters per square second.193958Sfc1 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
4384 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
1364 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
106 m²/s²
0-3 km storm-relative helicity
112 m²/s²
Significant tornado parameter
1.3
Supercell composite
11.7

Open this sounding in Storm Lab

The text

As transmitted.

249 
WFUS54 KTSA 290204
TORTSA
OKC121-290245-
/O.NEW.KTSA.TO.W.0029.200429T0204Z-200429T0245Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tulsa OK
904 PM CDT Tue Apr 28 2020

The National Weather Service in Tulsa has issued a

* Tornado Warning for...
  Southeastern Pittsburg County in southeastern Oklahoma...

* Until 945 PM CDT.
    
* At 904 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 3 miles southeast of Blanco, moving east at 20 mph.

  HAZARD...Tornado and ping pong ball 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...
  Blanco...                         

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.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Tulsa.

&&

LAT...LON 3469 9579 3476 9578 3475 9551 3460 9551
      3459 9554
TIME...MOT...LOC 0204Z 289DEG 18KT 3471 9573 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$
2 follow-up statements
276 
WWUS54 KTSA 290213 RRA
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
913 PM CDT Tue Apr 28 2020

OKC121-290245-
/O.CON.KTSA.TO.W.0029.000000T0000Z-200429T0245Z/
Pittsburg OK-
913 PM CDT Tue Apr 28 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR
SOUTHEASTERN PITTSBURG COUNTY...
    
At 913 PM CDT, a severe thunderstorm capable of producing a tornado
was located 9 miles southeast of Blanco, moving east at 30 mph.

HAZARD...Tornado and golf ball 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.

This tornadic thunderstorm will remain over mainly rural areas of
southeastern Pittsburg County.

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.

If a tornado or other severe weather is spotted, report it to the
National Weather Service or your local nearest law enforcement agency
who will send your report. This act may save lives of others in the
path of dangerous weather.

&&

LAT...LON 3467 9574 3476 9572 3475 9551 3460 9551
      3459 9554
TIME...MOT...LOC 0213Z 290DEG 25KT 3468 9562 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$
254 
WWUS54 KTSA 290226
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
926 PM CDT Tue Apr 28 2020

OKC121-290235-
/O.CAN.KTSA.TO.W.0029.000000T0000Z-200429T0245Z/
Pittsburg OK-
926 PM CDT Tue Apr 28 2020

...THE TORNADO WARNING FOR SOUTHEASTERN PITTSBURG COUNTY IS
CANCELLED...
    
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and a
Severe Thunderstorm Warning remains in effect for the area.

A Tornado Watch remains in effect until 1100 PM CDT for southeastern
Oklahoma.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Tulsa.

LAT...LON 3467 9574 3476 9572 3475 9551 3460 9551
      3459 9554
TIME...MOT...LOC 0224Z 289DEG 18KT 3466 9555 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 28, 7:02 PM CDTSevere Thunderstorm WarningTSAAdair, Cherokee, Delaware, Mayes, Wagoner58 min
Apr 28, 7:08 PM CDTTornado WarningTSADelaware37 min
Apr 28, 7:13 PM CDTSevere Thunderstorm WarningTSAAdair, Cherokee, McIntosh, Muskogee, Okfuskee, Okmulgee and 2 more62 min
Apr 28, 7:37 PM CDTSevere Thunderstorm WarningTSAAdair, Cherokee, Delaware53 min
Apr 28, 7:38 PM CDTSpecial Weather StatementTSALatimer, Pittsburg37 min
Apr 28, 7:47 PM CDTSevere Thunderstorm WarningTSAHaskell, Latimer, Pittsburg, Pushmataha43 min
Apr 28, 7:57 PM CDTSevere Thunderstorm WarningTSAAdair, Cherokee, Haskell, LeFlore, Muskogee, Sequoyah63 min
Apr 28, 8:02 PM CDTSevere Thunderstorm WarningTSAHaskell, McIntosh, Muskogee, Okfuskee, Okmulgee, Pittsburg43 min
Apr 28, 8:18 PM CDTSevere Thunderstorm WarningTSAHaskell, LeFlore, Sequoyah57 min
Apr 28, 8:23 PM CDTTornado WarningTSAPittsburg, Pushmataha67 min
Apr 28, 8:25 PM CDTSevere Thunderstorm WarningTSAHaskell, Latimer, LeFlore50 min
Apr 28, 8:34 PM CDTSevere Thunderstorm WarningTSAHaskell, Latimer, McIntosh, Muskogee, Pittsburg41 min
Apr 28, 8:38 PM CDTSevere Thunderstorm WarningTSAPittsburg37 min
Apr 28, 9:06 PM CDTTornado WarningTSALeFlore26 min
Apr 28, 9:07 PM CDTSevere Thunderstorm WarningTSAHaskell, Latimer, LeFlore, Pittsburg, Pushmataha38 min
Apr 28, 9:16 PM CDTTornado WarningTSAPittsburg, Pushmataha24 min
Apr 28, 9:21 PM CDTTornado WarningTSAPushmataha39 min
Apr 28, 9:29 PM CDTSevere Thunderstorm WarningTSAChoctaw, Latimer, LeFlore, Pittsburg, Pushmataha61 min
Apr 28, 9:47 PM CDTSevere Thunderstorm WarningTSAChoctaw, Pushmataha43 min
Apr 28, 10:27 PM CDTSevere Thunderstorm WarningTSAChoctaw21 min

Nearby

Tornado Warnings in Oklahoma, 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.