Alert archive / Texas / Tornado Warnings in 2007

Tornado Warning 2, NWS San Angelo, TX

March 11, 2007Coke County, Sterling County, Texas

NWS San Angelo, TX issued this tornado warning at Mar 11, 2007, 5:20 PM CDT for Coke County, Sterling County, Texas. It was in force for 40 min. 3 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
Mar 11, 2007, 5:20 PM CDT (22:20 UTC)
Expired
Mar 11, 2007, 6:00 PM CDT
In force
40 min
Issued by
NWS San Angelo, TX
Area
Counties, with a storm outline in the text

Counties Coke County, TX, Sterling County, TX

The radar

The San Angelo radar (KSJT), 54 km from the middle of the area, began a volume at 22:23 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

TimeReportWhereRemark
Mar 11, 5:56 PM CDTTSTM WND DMG3 W Robert Lee, TXTREES KNOCKED DOWN, WINDS ESTIMATED AT 70MPH.
Mar 11, 5:56 PM CDTHAIL 0.883 W Robert Lee, TXNICKEL SIZE HAIL REPORTED 3 MILES W OF ROBERT LEE ON HWY 158.
Mar 11, 6:10 PM CDTHAIL 1E Robert Lee, TXQUARTER SIZE HAIL REPORTED IN ROBERT LEE.

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.

IssuedProductOfficeLasted
Mar 11, 1:58 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 10.3 hours before the alert went out and 142 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-pSkew-T log-p diagram, Midland Regional, TX at 12:00Z on 2007-03-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1106 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Midland Regional, TX at 12:00Z on 2007-03-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 137 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1106 J/kg
Mixed-layer CIN
-124 J/kg
Mixed-layer LCL
862 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
137 m²/s²
0-3 km storm-relative helicity
165 m²/s²
Significant tornado parameter
0.5
Supercell composite
1.8

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KSJT 112220
TORSJT
TXC081-431-112300-
/O.NEW.KSJT.TO.W.0002.070311T2220Z-070311T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
520 PM CDT SUN MAR 11 2007

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL STERLING COUNTY IN WEST CENTRAL TEXAS
  COKE COUNTY IN WEST CENTRAL TEXAS

* UNTIL 600 PM CDT

* AT 515 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 4 MILES EAST OF
  BROOME...OR ABOUT 13 MILES EAST OF STERLING CITY...MOVING EAST AT
  20 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  THE INTERSECTION OF HIGHWAY 158 AND RANCH ROAD 2059 BY 540 PM CDT
  SPENCE RESERVOIR NEAR PAINT CREEK RECREATION AREA BY 550 PM CDT
  ROBERT LEE AND THE INTERSECTION OF HIGHWAY 208 AND RANCH ROAD 2662
  BY 600 PM CDT

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. IF NO
BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE
BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. IF IN
MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL
SHELTER.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT SUNDAY EVENING FOR
WEST CENTRAL TEXAS.

LAT...LON 3179 10091 3166 10077 3181 10028 3208 10065

$$
1 follow-up statement
000 
WWUS54 KSJT 112246
SVSSJT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
546 PM CDT SUN MAR 11 2007

TXC081-431-112300-
/O.CON.KSJT.TO.W.0002.000000T0000Z-070311T2300Z/
STERLING TX-COKE TX-
546 PM CDT SUN MAR 11 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR COKE AND
EAST CENTRAL STERLING COUNTIES...

AT 545 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED 9 MILES WEST OF THE
INTERSECTION OF HIGHWAY 208 AND RANCH ROAD 2662...OR ABOUT 11 MILES
SOUTHWEST OF ROBERT LEE...MOVING EAST AT 20 MPH.

THE TORNADO WILL BE NEAR...
  THE INTERSECTION OF HIGHWAY 208 AND RANCH ROAD 2662 BY 600 PM CDT

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 3179 10091 3166 10077 3181 10028 3208 10065

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 11, 4:07 PM CDTSevere Thunderstorm WarningSJTSterling38 min
Mar 11, 4:42 PM CDTSevere Thunderstorm WarningSJTSterling48 min
Mar 11, 5:07 PM CDTSevere Thunderstorm WarningSJTCoke, Nolan, Sterling38 min
Mar 11, 5:54 PM CDTSevere Thunderstorm WarningSJTCoke, Runnels, Tom Green51 min
Mar 11, 6:26 PM CDTSevere Thunderstorm WarningSJTConcho, McCulloch, Menard20 min
Mar 11, 6:43 PM CDTSevere Thunderstorm WarningSJTColeman, McCulloch36 min

Nearby

Tornado Warnings in Texas, 2007Every tornado warning in 2007Tornadoes in 2007

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.