Alert archive / Oklahoma / Tornado Warnings in 2016

Tornado Warning 50, NWS Norman, OK

May 26, 2016Harper County, Oklahoma

NWS Norman, OK issued this tornado warning at May 26, 2016, 2:19 PM CDT for Harper County, Oklahoma. It was in force for 26 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: May 26, 2016, 2:19 PM CDT (19:19 UTC)
Expired: May 26, 2016, 2:45 PM CDT
In force: 26 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 2.5 in

County Harper County, OK

The radar

The Dodge City radar (KDDC), 120 km from the middle of the area, began a volume at 19:21 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
May 26, 2:25 PM CDT	HAIL 1.5	6 E Laverne, OK	INTERSECTIONS OF HWYS 149 AND 46
May 26, 2:25 PM CDT	HAIL 1.75	5 N May, OK

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
May 26, 1:31 PM CDT	Tornado Watch	SPC	10 hr

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 7.3 hours before the alert went out and 120 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: 212 J/kg
Mixed-layer CIN: -425 J/kg
Mixed-layer LCL: 2776 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 110 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

Open this sounding in Storm Lab

The text

As transmitted.

371 
WFUS54 KOUN 261919
TOROUN
OKC059-261945-
/O.NEW.KOUN.TO.W.0050.160526T1919Z-160526T1945Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORMAN OK
219 PM CDT THU MAY 26 2016

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN HARPER COUNTY IN NORTHWESTERN OKLAHOMA...

* UNTIL 245 PM CDT
    
* AT 219 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
  WAS LOCATED NEAR MAY...MOVING NORTHEAST AT 20 MPH.

  HAZARD...TORNADO AND TENNIS 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...
  BUFFALO AND MAY. 

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 IN A
MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3661 9966 3662 9989 3692 9971 3677 9944
TIME...MOT...LOC 1919Z 214DEG 17KT 3666 9975 

TORNADO...RADAR INDICATED
HAIL...2.50IN

$$

30

1 follow-up statement

885 
WWUS54 KOUN 261941
SVSOUN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
241 PM CDT THU MAY 26 2016

OKC059-261950-
/O.EXP.KOUN.TO.W.0050.000000T0000Z-160526T1945Z/
HARPER OK-
241 PM CDT THU MAY 26 2016

...THE TORNADO WARNING FOR SOUTHWESTERN HARPER COUNTY WILL EXPIRE AT
245 PM CDT...
    
THE TORNADO THREAT HAS DIMINISHED AND THE TORNADO WARNING HAS BEEN
CANCELLED. HOWEVER...LARGE HAIL TO THE SIZE OF GOLF BALLS AND
DAMAGING WINDS GUSTS TO 60 MPH REMAIN LIKELY AND A SEVERE
THUNDERSTORM WARNING REMAINS IN EFFECT FOR THE AREA.

REMEMBER...A SEVERE THUNDERSTORM WARNING STILL REMAINS IN EFFECT FOR
HARPER COUNTY. 

LAT...LON 3661 9966 3662 9989 3692 9971 3677 9944
TIME...MOT...LOC 1939Z 214DEG 17KT 3666 9975 

$$

30

The office that day

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

Issued	Product	Office	Counties	Lasted
May 25, 7:32 PM CDT	Special Weather Statement	OUN	Major	43 min
May 25, 7:36 PM CDT	Special Weather Statement	OUN	Alfalfa	39 min
May 25, 7:57 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa	16 min
May 25, 8:15 PM CDT	Special Weather Statement	OUN	Alfalfa	45 min
May 25, 8:59 PM CDT	Special Weather Statement	OUN	Alfalfa	46 min
May 25, 9:08 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Garfield, Grant	52 min
May 25, 9:26 PM CDT	Tornado Warning	OUN	Alfalfa, Garfield	34 min
May 25, 9:43 PM CDT	Tornado Warning	OUN	Alfalfa	32 min
May 25, 9:54 PM CDT	Tornado Warning Tornado observed	OUN	Garfield	36 min
May 25, 10:15 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Garfield, Major	45 min
May 25, 10:18 PM CDT	Tornado Warning	OUN	Garfield, Grant	27 min
May 25, 10:27 PM CDT	Flash Flood Warning	OUN	Garfield, Grant	3 hr
May 25, 10:43 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Grant	47 min
May 25, 11:28 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Noble	62 min
May 25, 11:33 PM CDT	Flash Flood Warning	OUN	Garfield	3 hr
May 26, 12:23 AM CDT	Severe Thunderstorm Warning	OUN	Noble	21 min
May 26, 12:46 AM CDT	Special Weather Statement	OUN	Noble	29 min
May 26, 4:17 AM CDT	River Flood Warning	OUN	Atoka	8 hr
May 26, 12:38 PM CDT	Special Weather Statement	OUN	Grant	37 min
May 26, 12:46 PM CDT	Special Weather Statement	OUN	Roger Mills	29 min
May 26, 12:48 PM CDT	Severe Thunderstorm Warning	OUN	Grant	27 min
May 26, 12:53 PM CDT	Special Weather Statement	OUN	Harper	37 min
May 26, 1:12 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Roger Mills	48 min
May 26, 1:25 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Harper	50 min
May 26, 1:50 PM CDT	Severe Thunderstorm Warning	OUN	Ellis	25 min
May 26, 1:52 PM CDT	Special Weather Statement	OUN	Woodward	23 min
May 26, 1:59 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Roger Mills	31 min
May 26, 2:11 PM CDT	Severe Thunderstorm Warning	OUN	Harper	49 min
May 26, 2:30 PM CDT	Special Weather Statement	OUN	Ellis	30 min
May 26, 2:56 PM CDT	Special Weather Statement	OUN	Woodward	34 min
May 26, 3:04 PM CDT	Severe Thunderstorm Warning	OUN	Woodward	41 min
May 26, 6:45 PM CDT	Severe Thunderstorm Warning	OUN	Jackson, Tillman	45 min

Nearby

Tornado Warnings in Oklahoma, 2016 Every tornado warning in 2016 Tornadoes in 2016

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.