Alert archive / Oklahoma / Tornado Warnings in 2017

Tornado Warning 21, NWS Amarillo, TX

June 25, 2017Cimarron County, Oklahoma

NWS Amarillo, TX issued this tornado warning at Jun 25, 2017, 6:30 PM CDT for Cimarron County, Oklahoma. It was in force for 45 min. 2 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: Jun 25, 2017, 6:30 PM CDT (23:30 UTC)
Expired: Jun 25, 2017, 7:15 PM CDT
In force: 45 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 2.75 in

County Cimarron County, OK

The radar

The Amarillo radar (KAMA), 172 km from the middle of the area, began a volume at 23:33 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

Time	Report	Where	Remark
Jun 25, 6:33 PM CDT	TORNADO	7 Ene Boise City, OK	SHERRIFFS OFFICE REPORTED TORNADO ON THE GROUND AT INTERSECTION HWY 64 AMD 56 FROM A LAW ENFORCEMENT OFFICER IN THE FIELD.
Jun 25, 6:44 PM CDT	HAIL 2.75	7 Ssw Keyes, OK	LATE REPORT...TENNIS BALL TO BASEBALL SIZED HAIL REPORTED THROUGHOUT FARM SOUTH TO SOUTHWEST OF KEYES. ALL CROPS ON FARM SUSTAINED HAIL DAMAGE RESULTING IN A TOTAL LOSS. LOCATION RELAYED BY CIMMARON CTY EM WITH TIME ESTIMATED FROM RADAR.

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.

Issued	Product	Office	Lasted
Jun 25, 3:59 PM CDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 11.5 hours before the alert went out and 173 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 475 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 652 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 40 m²/s²
0-3 km storm-relative helicity: 129 m²/s²
Significant tornado parameter: -0.1
Supercell composite: -0.8

Open this sounding in Storm Lab

The text

As transmitted.

669 
WFUS54 KAMA 252330
TORAMA
OKC025-260015-
/O.NEW.KAMA.TO.W.0021.170625T2330Z-170626T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Amarillo TX
630 PM CDT SUN JUN 25 2017

The National Weather Service in Amarillo has issued a

* Tornado Warning for...
  Southeastern Cimarron County in the Panhandle of Oklahoma...

* Until 715 PM CDT
    
* At 630 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 4 miles south of Keyes, or 13 miles east of Boise City,
  moving south at 15 mph.

  HAZARD...Tornado and baseball 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...
  Keyes and Griggs. 

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 3679 10239 3682 10217 3656 10208 3657 10243
TIME...MOT...LOC 2330Z 347DEG 15KT 3674 10227 

TORNADO...RADAR INDICATED
HAIL...2.75IN

$$

Beat

3 follow-up statements

361 
WWUS54 KAMA 252336
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
636 PM CDT SUN JUN 25 2017

OKC025-260015-
/O.CON.KAMA.TO.W.0021.000000T0000Z-170626T0015Z/
Cimarron OK-
636 PM CDT SUN JUN 25 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR
SOUTHEASTERN CIMARRON COUNTY...
    
At 635 PM CDT, a confirmed tornado was located 6 miles south of
Keyes, or 13 miles east of Boise City, moving south at 15 mph.

HAZARD...Damaging tornado and baseball size hail. 

SOURCE...Law enforcement confirmed tornado at the juction of Hwy 56 
         and Hwy 64. 

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...
Keyes and Griggs. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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 3682 10218 3656 10208 3657 10243 3679 10239
TIME...MOT...LOC 2335Z 347DEG 15KT 3672 10226 

TORNADO...OBSERVED
HAIL...2.75IN

$$

Beat

762 
WWUS54 KAMA 252349
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
649 PM CDT SUN JUN 25 2017

OKC025-260015-
/O.CON.KAMA.TO.W.0021.000000T0000Z-170626T0015Z/
Cimarron OK-
649 PM CDT SUN JUN 25 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR
SOUTHEASTERN CIMARRON COUNTY...
    
At 649 PM CDT, a severe thunderstorm capable of producing a tornado
was located 10 miles south of Keyes, or 12 miles east of Boise City,
moving south at 25 mph.

HAZARD...Tornado and baseball 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 Cimarron 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.

&&

LAT...LON 3676 10220 3657 10217 3657 10243 3676 10240
TIME...MOT...LOC 2349Z 007DEG 21KT 3666 10230 

TORNADO...RADAR INDICATED
HAIL...2.75IN

$$

Beat

618 
WWUS54 KAMA 260012
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
712 PM CDT SUN JUN 25 2017

OKC025-260022-
/O.EXP.KAMA.TO.W.0021.000000T0000Z-170626T0015Z/
Cimarron OK-
712 PM CDT SUN JUN 25 2017

...THE TORNADO WARNING FOR SOUTHEASTERN CIMARRON COUNTY WILL EXPIRE
AT 715 PM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning will be allowed to expire.

A severe thunderstorm watch remains in effect until 1100 PM CDT for
the Panhandle of Oklahoma.

LAT...LON 3676 10220 3657 10217 3657 10243 3676 10240
TIME...MOT...LOC 0012Z 347DEG 15KT 3657 10228 

$$

Beat

The office that day

Everything else NWS Amarillo, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 25, 5:24 PM CDT	Severe Thunderstorm Warning	AMA	Cimarron, Texas	96 min
Jun 25, 6:12 PM CDT	Tornado Warning	AMA	Cimarron	35 min
Jun 25, 6:27 PM CDT	Severe Thunderstorm Warning	AMA	Cimarron, Texas	66 min
Jun 25, 6:38 PM CDT	Severe Thunderstorm Warning	AMA	Cimarron	39 min

Nearby

Tornado Warnings in Oklahoma, 2017 Every tornado warning in 2017 Tornadoes in 2017

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.