Alert archive / Oklahoma / Tornado Warnings in 2019

Tornado Warning 2, NWS Norman, OK

April 17, 2019Ellis County, Oklahoma

NWS Norman, OK issued this tornado warning at Apr 17, 2019, 4:49 PM CDT for Ellis County, Oklahoma. It was in force for 41 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 17, 2019, 4:49 PM CDT (21:49 UTC)
Expired
Apr 17, 2019, 5:30 PM CDT
In force
41 min
Issued by
NWS Norman, OK
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.75 in

County Ellis County, OK

The radar

The Dodge City radar (KDDC), 152 km from the middle of the area, began a volume at 21:50 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 17, 1:32 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 9.8 hours before the alert went out and 152 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, Dodge City, at 12:00Z on 2019-04-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Dodge City, at 12:00Z on 2019-04-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -84 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2546 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
-84 m²/s²
0-3 km storm-relative helicity
5 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

832 
WFUS54 KOUN 172149
TOROUN
OKC045-172230-
/O.NEW.KOUN.TO.W.0002.190417T2149Z-190417T2230Z/

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

The National Weather Service in Norman has issued a

* Tornado Warning for...
  Northwestern Ellis County in northwestern Oklahoma...

* Until 530 PM CDT.
    
* At 448 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Shattuck, moving northeast at 25 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.

* Locations impacted include...
  Shattuck, Gage and Fargo. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a storm shelter, safe room 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 3658 9964 3631 9961 3623 9997 3634 10000
      3637 10000
TIME...MOT...LOC 2148Z 221DEG 22KT 3630 9989 

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

$$

SIX
2 follow-up statements
358 
WWUS54 KOUN 172156
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
456 PM CDT Wed Apr 17 2019

OKC045-172230-
/O.CON.KOUN.TO.W.0002.000000T0000Z-190417T2230Z/
Ellis OK-
456 PM CDT Wed Apr 17 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM CDT FOR
NORTHWESTERN ELLIS COUNTY...
    
At 454 PM CDT, a confirmed tornado was located 5 miles northwest of
Shattuck, moving east at 10 mph.  The tornado is drifting northward
along a nearly stationary boundary.  Another tornado may be trying
to form 5 miles north of Gage.  

HAZARD...Damaging tornado and golf ball size hail.

SOURCE...Weather spotters confirmed tornado.

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 impacted include...
Shattuck, Gage and Fargo. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
storm shelter, safe room, 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 3658 9964 3631 9961 3623 9997 3634 10000
      3637 10000
TIME...MOT...LOC 2154Z 263DEG 10KT 3631 9995 

TORNADO...OBSERVED
HAIL...1.75IN

$$

SIX
422 
WWUS54 KOUN 172209
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
509 PM CDT Wed Apr 17 2019

OKC045-172230-
/O.CON.KOUN.TO.W.0002.000000T0000Z-190417T2230Z/
Ellis OK-
509 PM CDT Wed Apr 17 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM CDT FOR
NORTHWESTERN ELLIS COUNTY...
    
At 507 PM CDT, spotters continue to track a tornado about 5 miles 
northwest of Shattuck, the tornado is moving very slowly to 
the east.  Radar also indicates weak circualtion about 5 miles
north of Gage.  

HAZARD...Damaging tornado and ping pong ball size hail.

SOURCE...Weather spotters confirmed tornado.

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 impacted include...
Shattuck, Gage and Fargo. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
storm shelter, safe room, 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 3632 9961 3624 9996 3635 9999 3638 9999
      3658 9964
TIME...MOT...LOC 2207Z 275DEG 7KT 3633 9995 

TORNADO...OBSERVED
HAIL...1.50IN

$$

SIX

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 17, 3:11 PM CDTSpecial Weather StatementOUNRoger Mills34 min
Apr 17, 3:25 PM CDTSevere Thunderstorm WarningOUNBeckham, Roger Mills50 min
Apr 17, 4:06 PM CDTSevere Thunderstorm WarningOUNBeckham, Roger Mills39 min
Apr 17, 4:31 PM CDTSpecial Weather StatementOUNEllis29 min
Apr 17, 4:39 PM CDTSevere Thunderstorm WarningOUNRoger Mills51 min
Apr 17, 4:43 PM CDTSevere Thunderstorm WarningOUNEllis47 min
Apr 17, 5:05 PM CDTAreal Flood AdvisoryOUNEllis, Harper, Woods, Woodward3 hr
Apr 17, 5:24 PM CDTTornado WarningOUNEllis36 min
Apr 17, 5:25 PM CDTSpecial Weather StatementOUNBeckham35 min
Apr 17, 5:27 PM CDTSevere Thunderstorm WarningOUNCuster, Dewey, Roger Mills48 min
Apr 17, 5:31 PM CDTSevere Thunderstorm WarningOUNBeckham44 min
Apr 17, 5:32 PM CDTSevere Thunderstorm WarningOUNHarper, Woods, Woodward43 min
Apr 17, 5:34 PM CDTTornado WarningOUNCuster, Roger Mills16 min
Apr 17, 5:49 PM CDTSevere Thunderstorm WarningOUNEllis, Harper41 min
Apr 17, 6:07 PM CDTSevere Thunderstorm WarningOUNAlfalfa38 min
Apr 17, 6:08 PM CDTSevere Thunderstorm WarningOUNCuster, Dewey, Roger Mills52 min
Apr 17, 6:12 PM CDTSevere Thunderstorm WarningOUNBeckham, Roger Mills48 min
Apr 17, 6:14 PM CDTSevere Thunderstorm WarningOUNHarper, Woods, Woodward46 min
Apr 17, 6:21 PM CDTAreal Flood AdvisoryOUNAlfalfa, Harper, Woods, Woodward114 min
Apr 17, 6:27 PM CDTSpecial Weather StatementOUNWoods33 min
Apr 17, 6:42 PM CDTSpecial Weather StatementOUNWoodward33 min
Apr 17, 6:52 PM CDTFlash Flood WarningOUNAlfalfa, Harper, Woods, Woodward3 hr
Apr 17, 6:56 PM CDTSevere Thunderstorm WarningOUNBlaine, Custer, Dewey, Major, Woodward49 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.