Alert archive / Texas / Tornado Warnings in 2017

Tornado Warning 7, NWS Norman, OK

March 28, 2017Baylor County, Knox County, Texas

NWS Norman, OK issued this tornado warning at Mar 28, 2017, 7:00 PM CDT for Baylor County, Knox County, Texas. It was in force for 30 min. 1 report 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: Mar 28, 2017, 7:00 PM CDT (00:00 UTC)
Expired: Mar 28, 2017, 7:30 PM CDT
In force: 30 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.75 in

Counties Baylor County, TX, Knox County, TX

The radar

The Dyess AFB radar (KDYX), 106 km from the middle of the area, began a volume at 00:04 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
Mar 28, 7:13 PM CDT	TORNADO	14 Sw Seymour, TX	TORNADO DOCUMENTED BY MULTIPLE STORM CHASERS JUST WEST-NORTHWEST OF MILLERS CREEK RESERVOIR.

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
Mar 28, 3:40 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 0.0 hours before the alert went out and 212 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: 822 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 1580 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 160 m²/s²
0-3 km storm-relative helicity: 289 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 14.5

Open this sounding in Storm Lab

The text

As transmitted.

634 
WFUS54 KOUN 290000
TOROUN
TXC023-275-290030-
/O.NEW.KOUN.TO.W.0007.170329T0000Z-170329T0030Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Norman OK
700 PM CDT TUE MAR 28 2017

The National Weather Service in Norman has issued a

* Tornado Warning for...
  Southeastern Knox County in northern Texas...
  Southwestern Baylor County in northern Texas...

* Until 730 PM CDT
    
* At 659 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 7 miles southwest of Millers Creek Reservoir, moving
  north-northeast at 35 mph.

  HAZARD...Tornado and golf ball size hail. 

  SOURCE...Radar indicated rotation. This storm has had a history of 
           producing tornadoes.

  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...
  Goree and Bomarton. 

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 3340 9940 3340 9957 3364 9953 3357 9926
TIME...MOT...LOC 2359Z 199DEG 30KT 3335 9952 

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

$$

..speg.

2 follow-up statements

841 
WWUS54 KOUN 290020
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
720 PM CDT TUE MAR 28 2017

TXC023-275-290030-
/O.CON.KOUN.TO.W.0007.000000T0000Z-170329T0030Z/
Knox TX-Baylor TX-
720 PM CDT TUE MAR 28 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR
SOUTHEASTERN KNOX AND SOUTHWESTERN BAYLOR COUNTIES...
    
At 719 PM CDT, a severe thunderstorm capable of producing a tornado
was located 4 miles southeast of Bomarton, moving northeast at 35 
mph. Another storm with developing rotation was located about 8 
miles south of goree.

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...
Goree and Bomarton. 

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 3340 9940 3340 9957 3364 9953 3357 9926
TIME...MOT...LOC 0019Z 212DEG 31KT 3347 9937 

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

$$

..speg.

600 
WWUS54 KOUN 290028
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
728 PM CDT TUE MAR 28 2017

TXC023-275-290036-
/O.EXP.KOUN.TO.W.0007.000000T0000Z-170329T0030Z/
Knox TX-Baylor TX-
728 PM CDT TUE MAR 28 2017

...THE TORNADO WARNING FOR SOUTHEASTERN KNOX AND SOUTHWESTERN BAYLOR
COUNTIES WILL EXPIRE AT 730 PM CDT...
    
The rotation has weakened in the storm in the storm southwest of 
Seymour. However, large hail and damaging winds remain likely and a 
Severe Thunderstorm Warning remains in effect for the area. In 
addition, rotation may redevelop in which case a tornado warning 
could be reissued.

LAT...LON 3340 9940 3340 9957 3364 9953 3357 9926
TIME...MOT...LOC 0026Z 199DEG 30KT 3352 9935 

$$

..speg.

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 28, 7:17 PM CDT	Areal Flood Advisory	OUN	Foard, Hardeman, Wilbarger	3 hr
Mar 28, 7:40 PM CDT	Severe Thunderstorm Warning	OUN	Baylor, Knox	50 min
Mar 28, 7:58 PM CDT	Areal Flood Advisory	OUN	Baylor, Foard, Knox, Wilbarger	2 hr
Mar 28, 8:06 PM CDT	Severe Thunderstorm Warning	OUN	Archer, Baylor, Wichita, Wilbarger	39 min
Mar 28, 8:30 PM CDT	Severe Thunderstorm Warning	OUN	Knox	45 min
Mar 28, 8:43 PM CDT	Severe Thunderstorm Warning	OUN	Wichita, Wilbarger	47 min
Mar 28, 9:10 PM CDT	Severe Thunderstorm Warning	OUN	Baylor, Foard, Knox, Wilbarger	50 min
Mar 28, 9:26 PM CDT	Severe Thunderstorm Warning	OUN	Wichita, Wilbarger	49 min
Mar 28, 9:54 PM CDT	Severe Thunderstorm Warning	OUN	Wilbarger	51 min
Mar 28, 10:07 PM CDT	Areal Flood Advisory	OUN	Wichita, Wilbarger	113 min
Mar 28, 10:23 PM CDT	Special Weather Statement	OUN	Foard, Knox	37 min
Mar 28, 10:40 PM CDT	Severe Thunderstorm Warning	OUN	Wilbarger	50 min
Mar 28, 10:56 PM CDT	Special Weather Statement	OUN	Wilbarger	34 min
Mar 28, 11:00 PM CDT	Flash Flood Warning	OUN	Wichita, Wilbarger	3 hr
Mar 28, 11:12 PM CDT	Severe Thunderstorm Warning	OUN	Archer, Baylor, Wichita, Wilbarger	48 min
Mar 29, 12:00 AM CDT	Special Weather Statement	OUN	Archer, Wichita	30 min
Mar 29, 12:30 AM CDT	Special Weather Statement	OUN	Clay	30 min
Mar 29, 2:07 AM CDT	Areal Flood Warning	OUN	Wichita, Wilbarger	6 hr
Mar 29, 2:19 PM CDT	River Flood Warning	OUN	Wichita, Wilbarger	21 hr

Nearby

Tornado Warnings in Texas, 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.