Alert archive / Oklahoma / Tornado Warnings in 2019

Tornado Warning 1, NWS Tulsa, OK

April 17, 2019Osage County, Oklahoma

NWS Tulsa, OK issued this tornado warning at Apr 17, 2019, 10:34 PM CDT for Osage County, Oklahoma. It was in force for 26 min. 3 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
Apr 17, 2019, 10:34 PM CDT (03:34 UTC)
Expired
Apr 17, 2019, 11:00 PM CDT
In force
26 min
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

County Osage County, OK

The radar

The Tulsa radar (KINX), 82 km from the middle of the area, began a volume at 03:33 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

TimeReportWhereRemark
Apr 17, 10:37 PM CDTTSTM WND DMG2 Nne Wynona, OKSTRONG THUNDERSTORM WIND SNAPPED LARGE TREE LIMBS
Apr 17, 10:40 PM CDTTSTM WND DMG5 Wnw Barnsdall, OKSTRONG THUNDERSTORM WIND SNAPPED LARGE TREE LIMBS
Apr 17, 10:47 PM CDTTSTM WND DMG4 Sse Okesa, OKSTRONG THUNDERSTORM WIND BLEW DOWN SEVERAL TREES

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.

IssuedProductOfficeLasted
Apr 17, 4:27 PM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 3.6 hours before the alert went out and 201 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 2019-04-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2231 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, Norman, OK at 00:00Z on 2019-04-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 186 square meters per square second.1939587897Sfc1 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
2231 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
988 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
186 m²/s²
0-3 km storm-relative helicity
200 m²/s²
Significant tornado parameter
2.9
Supercell composite
13.7

Open this sounding in Storm Lab

The text

As transmitted.

076 
WFUS54 KTSA 180334
TORTSA
OKC113-180400-
/O.NEW.KTSA.TO.W.0001.190418T0334Z-190418T0400Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Tulsa OK
1034 PM CDT Wed Apr 17 2019

The National Weather Service in Tulsa has issued a

* Tornado Warning for...
  East central Osage County in northeastern Oklahoma...

* Until 1100 PM CDT.
    
* At 1034 PM CDT, a severe thunderstorm capable of producing a
  tornado was located 3 miles north of Wynona, moving northeast at 45
  mph.

  HAZARD...Tornado and quarter 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...
  Bartlesville...                   Pawhuska...
  Barnsdall...                      Wynona...
  Osage Hills State Park...         Bartlesville Municipal Airport...
  Okesa...                          Sunset Lake...
  Pershing...                       Nelagoney...
  Tallant...                        

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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 3692 9608 3682 9600 3663 9600 3649 9637
      3660 9648
TIME...MOT...LOC 0334Z 236DEG 39KT 3660 9633 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$
3 follow-up statements
437 
WWUS54 KTSA 180341
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
1041 PM CDT Wed Apr 17 2019

OKC113-180400-
/O.CON.KTSA.TO.W.0001.000000T0000Z-190418T0400Z/
Osage OK-
1041 PM CDT Wed Apr 17 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT FOR EAST
CENTRAL OSAGE COUNTY...
    
At 1041 PM CDT, a severe thunderstorm capable of producing a tornado
was located 4 miles east of Pawhuska, moving northeast at 50 mph.

HAZARD...Tornado and quarter 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...
Bartlesville...                   Pawhuska...
Osage Hills State Park...         Bartlesville Municipal Airport...
Okesa...                          Pershing...
Nelagoney...                      Tallant...

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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 3692 9608 3682 9600 3663 9600 3657 9629
      3664 9636
TIME...MOT...LOC 0341Z 237DEG 43KT 3665 9625 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$
175 
WWUS54 KTSA 180348
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
1048 PM CDT Wed Apr 17 2019

OKC113-180400-
/O.CON.KTSA.TO.W.0001.000000T0000Z-190418T0400Z/
Osage OK-
1048 PM CDT Wed Apr 17 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT FOR EAST
CENTRAL OSAGE COUNTY...
    
At 1048 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Okesa, moving northeast at 45 mph.

HAZARD...Tornado and quarter 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...
Bartlesville...                   Osage Hills State Park...
Okesa...                          Bartlesville Municipal Airport...

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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 3682 9600 3666 9600 3661 9616 3668 9625
      3691 9607
TIME...MOT...LOC 0348Z 236DEG 39KT 3670 9617 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$
728 
WWUS54 KTSA 180358
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
1058 PM CDT Wed Apr 17 2019

OKC113-180406-
/O.EXP.KTSA.TO.W.0001.000000T0000Z-190418T0400Z/
Osage OK-
1058 PM CDT Wed Apr 17 2019

...THE TORNADO WARNING FOR EAST CENTRAL OSAGE COUNTY WILL EXPIRE AT
1100 PM CDT...
    
The thunderstorm that prompted the warning no longer appears capable 
of producing a tornado. Therefore the warning will be allowed to 
expire. However damaging winds to 70 mph are still possible with 
this thunderstorm, and a Severe Thunderstorm Warning remains in 
effect for eastern Osage County through 1030 PM.

A Severe Thunderstorm Watch remains in effect until midnight CDT for
northeastern Oklahoma.

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

LAT...LON 3682 9600 3666 9600 3661 9616 3668 9625
      3691 9607
TIME...MOT...LOC 0356Z 236DEG 39KT 3674 9610 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 17, 7:04 PM CDTSevere Thunderstorm WarningTSALeFlore41 min
Apr 17, 8:59 PM CDTSpecial Weather StatementTSALeFlore31 min
Apr 17, 9:06 PM CDTSevere Thunderstorm WarningTSALeFlore39 min
Apr 17, 9:34 PM CDTSevere Thunderstorm WarningTSAOsage, Pawnee56 min
Apr 17, 9:41 PM CDTSevere Thunderstorm WarningTSALeFlore, Sequoyah27 min
Apr 17, 10:18 PM CDTSpecial Weather StatementTSACreek27 min
Apr 17, 10:21 PM CDTSevere Thunderstorm WarningTSAOsage, Pawnee39 min
Apr 17, 10:44 PM CDTSevere Thunderstorm WarningTSANowata, Osage, Rogers, Washington46 min
Apr 17, 11:23 PM CDTSevere Thunderstorm WarningTSACraig, Nowata37 min
Apr 17, 11:48 PM CDTSpecial Weather StatementTSAOttawa42 min
Apr 18, 6:23 PM CDTSpecial Weather StatementTSACreek, Okfuskee52 min
Apr 18, 6:39 PM CDTSpecial Weather StatementTSAOsage, Pawnee, Tulsa51 min

Nearby

Tornado Warnings in Oklahoma, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.