Alert archive / Texas / Tornado Warnings in 2009

Tornado Warning 7, NWS Midland/Odessa, TX

April 16, 2009Borden County, Texas

NWS Midland/Odessa, TX issued this tornado warning at Apr 16, 2009, 5:30 PM CDT for Borden County, Texas. It was in force for 30 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: Apr 16, 2009, 5:30 PM CDT (22:30 UTC)
Expired: Apr 16, 2009, 6:00 PM CDT
In force: 30 min
Issued by: NWS Midland/Odessa, TX
Area: Storm-based polygon

County Borden County, TX

The radar

The Lubbock radar (KLBB), 99 km from the middle of the area, began a volume at 22:33 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
Apr 16, 5:30 PM CDT	HAIL 1	13 Ne Gail, TX
Apr 16, 5:30 PM CDT	HAIL 1.5	18 Ne Gail, TX	NICKEL TO ALMOST GOLF BALL HAIL

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
Apr 16, 4:42 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 10.5 hours before the alert went out and 134 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: 1226 J/kg
Mixed-layer CIN: -157 J/kg
Mixed-layer LCL: 581 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 118 m²/s²
0-3 km storm-relative helicity: 86 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS54 KMAF 162230
TORMAF
TXC033-162300-
/O.NEW.KMAF.TO.W.0007.090416T2230Z-090416T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
530 PM CDT THU APR 16 2009

THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN BORDEN COUNTY IN WEST TEXAS...

* UNTIL 600 PM CDT

* AT 529 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER NORTH
  CENTRAL BORDEN COUNTY...OR 9 MILES NORTHEAST OF GAIL...MOVING NORTH
  AT 20 MPH.

* THE TORNADO WILL AFFECT THE FOLLOWING LOCATIONS...
  NORTHERN BORDEN COUNTY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO MAY FORM AT ANY TIME... TAKE COVER NOW. ABANDON MOBILE
HOMES AND VEHICLES FOR MORE SUBSTANTIAL SHELTER. AVOID WINDOWS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT FRIDAY MORNING
FOR WEST TEXAS.

&&

LAT...LON 3279 10125 3282 10149 3296 10143 3296 10118
      3295 10117
TIME...MOT...LOC 2230Z 198DEG 19KT 3288 10135

$$

The office that day

Everything else NWS Midland/Odessa, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 16, 4:25 AM CDT	Fire Weather Watch	MAF		25 hr
Apr 16, 4:25 AM CDT	Red Flag Warning	MAF		15 hr
Apr 16, 4:36 PM CDT	Severe Thunderstorm Warning	MAF	Upton	39 min
Apr 16, 4:39 PM CDT	Severe Thunderstorm Warning	MAF	Borden	36 min
Apr 16, 5:13 PM CDT	Severe Thunderstorm Warning	MAF	Borden	47 min
Apr 16, 5:14 PM CDT	Severe Thunderstorm Warning	MAF	Midland	46 min
Apr 16, 5:32 PM CDT	Severe Thunderstorm Warning	MAF	Martin	58 min
Apr 16, 5:58 PM CDT	Severe Thunderstorm Warning	MAF	Borden, Scurry	32 min
Apr 16, 6:03 PM CDT	Severe Thunderstorm Warning	MAF	Ector, Midland	57 min
Apr 16, 6:07 PM CDT	Severe Thunderstorm Warning	MAF	Borden, Dawson, Howard, Martin	38 min
Apr 16, 6:19 PM CDT	Severe Thunderstorm Warning	MAF	Borden, Dawson, Howard, Martin	56 min
Apr 16, 6:32 PM CDT	Severe Thunderstorm Warning	MAF	Ector, Winkler	38 min
Apr 16, 6:43 PM CDT	Severe Thunderstorm Warning	MAF	Borden, Dawson	32 min

Nearby

Tornado Warnings in Texas, 2009 Every tornado warning in 2009 Tornadoes in 2009

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.