4/30/04 NOW: TX/OK

A small storm is riding along a boundary near the Red River right now, and chasers are headed out for an early start to the action in north Texas today.
 
Thanks for getting us started, Amos. First mesoscale discussion issued at 12:01 CDT.

SEVERE THREAT IS INCREASING ACROSS NORTHWEST TEXAS. WW COULD BECOME NECESSARY AS EARLY AS 18Z.

ISOLATED BRIEF TORNADOES APPEAR POSSIBLE WITH INITIAL ACTIVITY...BUT LARGE HAIL IS EXPECTED TO BE PRIMARY THREAT BEFORE LARGER CONVECTIVE CLUSTER EVOLVES BENEATH DIFLUENT/DIVERGENT UPPER FLOW REGIME.

Satellite shows nice clearing across target area with persistent CU fields. Radar shows two areas of convection now that have developed in the Wichita Falls area riding directly over the river. Another low reflectivity is also showing now in the Throckmorton area (naturally).
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORMAN OK
1225 PM CDT FRI APR 30 2004

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
WICHITA COUNTY IN NORTHERN TEXAS
COTTON COUNTY IN SOUTHWEST OKLAHOMA

* UNTIL 115 PM CDT
 
The southern cell is expanding now. It is located in the NW corner of the same county Abilene sits in. Reflecting at 45DBz.

There is an unconfirmed meso showing up on the cell SE of Lawton (directly south of DUC over river). It is taking on some supercell characteristics already.
 
For those of you interested in the atmospherics - here are the latest obs out of Wichita Falls -

KSPS
Wichita Falls, Sheppard Air Force Base
Observation at: 11:52 AM CDT (16:52 UTC)
Temp: 73 F - Dewpoint: 66 F
Pressure: 29.90 in Hg
Wind: 090 at 12.7 mph (11 kts)
Visibility: 10 Statute Miles
Relative Humidity: 78.7%
Clouds: Scattered at 2000 ft - Broken Cumulonimbus at 3000 ft
 
The cell SE of Lawton is now showing a 3DC0. Movement is 248/9 kts. It is turning right - 63DBz, tops at 39.5. Starting to form a flying eagle on radar -
 
THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF

SOUTHERN OKLAHOMA
NORTHWEST AND NORTH CENTRAL TEXAS

EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 1245 PM UNTIL 900PM CDT.

TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 85 STATUTE MILES EAST AND WEST OF A LINE FROM ARDMORE OKLAHOMA TO 35 MILES SOUTHWEST OF MINERAL WELLS TEXAS.
 
If you are looking for easily accessible storms, I recommend the storm just north of Wichita Falls sitting directly over the interstate between Lawton and Wichita Falls ... growing quite nicely.
 
Both cells riding the river are now indicating unconf. mesos. Each is around 65DBz ... movement for each is quite slow - around 10-12 kts. Each of these is riding a visible boundary on satellite. The storm NW of ABI almost appears to be behind the boundary at this time.

A couplet just showed up again on the cell north of Wichita Falls (@1817z). This cell has also recently made a hard right turn -
 
Severe Thunderstorm Warning just issued for Jefferson County in OK, until 1930Z. If I'm readin' it right, Frederick radar is showing tops at around 45,000 on this cell.
 
The convection NW of Abilene appears disjointed and like its trying to figure out what it wants to do - could just be organizing itself, but looks like it is spread too thin.

There is a new reflection directly west of GZV south of the Wichita Falls cell by two counties. Additional development on the south side of Wichita Falls itself as well.

The Wichita Falls cell is currently at Lat: 34.0365 by Long. -98.3892.
It is moving straight east at 15 kts and continues to show a meso. Best looking for now.
 
The Wichita Falls cell is looking a bit hookish.

<img src=http://img47.photobucket.com/albums/v143/mikeperegrine/ICT_falls.gif>

Abilene is looking MUCH better now - starting to get going again now that it is on the juicy side of the boundary. Both Red River cells are indicating couplets again as of 1838z.
 
Wichita Falls storm looking very impressive on radar. I do see a very defined hook forming on that cell.. would imagine TORNADO WARNING will be issued for this cell shortly.

Developing storms trailing behind it southwest of Wichita Falls. May trail along outflow boundry from the other storms. Will be watching that storm as it develops.
 
According to WeatherTap, the Wichita Falls storm has a TVS signature. No surprise with the definition of that hook. Very impressive looking cell right now.
 
wow - the Wichita Falls cell needs to have a warning soon - big hook showing up - at almost 70DBz now -

The spotters in that area are like a SWAT team. I would guess the lack of a warning is due to their continuous reports to OUN. But I agree the radar looks like it's about to earn it.
 
I can't believe that cell just to the East of SPS doesn't have a tornado warning on it. Quite the hook on the 18:46 image.
 
This really surprises me -

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
155 PM CDT FRI APR 30 2004

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* TORNADO WARNING FOR...
JONES COUNTY IN NORTH CENTRAL TEXAS

* UNTIL 230 PM CDT
 
The residents of Hurnville should be seeking shelter now. Still very surprised not to see a TOR-WARN out on this cell. It is definately holding together very well.

Storm to the west of Wichita Fall appears to be decreasing in intensity. Seems this other storm is taking everything in its surrounding enviornment.
 
This really surprises me -
* TORNADO WARNING FOR...
JONES COUNTY IN NORTH CENTRAL TEXAS
* UNTIL 230 PM CDT

That storm is interacting with the boundary, the loop of DYX shows it pretty dramatically, including the notch on the latest scan.
 
And so it comes...

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORMAN OK
202 PM CDT FRI APR 30 2004

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* TORNADO WARNING FOR...
NORTHERN CLAY COUNTY IN NORTHERN TEXAS

* UNTIL 245 PM CDT

* AT 202 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR PETROLIA...
MOVING NORTHEAST AT 10 MPH.
 
Back
Top