Alert archive / Texas / Tornado Warnings in 1999

Tornado Warning 12, NWS Midland/Odessa, TX

April 29, 1999Culberson County, Reeves County, Texas

NWS Midland/Odessa, TX issued this tornado warning at Apr 29, 1999, 7:52 PM CDT for Culberson County, Reeves County, Texas. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Apr 29, 1999, 7:52 PM CDT (00:52 UTC)
Expired
Apr 29, 1999, 8:30 PM CDT
In force
38 min
Issued by
NWS Midland/Odessa, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Culberson County, TX, Reeves County, TX

The radar

The Midland/Odessa radar (KMAF), 181 km from the middle of the area, began a volume at 00:52 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.

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 0.9 hours before the alert went out and 180 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 00:00Z on 1999-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1922 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Midland Regional, TX at 00:00Z on 1999-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 91 square meters per square second.193958Sfc1 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
1922 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
683 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
91 m²/s²
0-3 km storm-relative helicity
205 m²/s²
Significant tornado parameter
1.4
Supercell composite
7.4

Open this sounding in Storm Lab

The text

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

999 
WFUS1 KMAF 300055 RRA
TORMAF
TXC109-389-300130-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MIDLAND-ODESSA TX
752 PM CDT THU APR 29 1999

THE MIDLAND-ODESSA NATIONAL WEATHER SERVICE OFFICE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN CULBERSON COUNTY IN TEXAS
  EXTREME NORTHWESTERN REEVES COUNTY IN TEXAS

* UNTIL 830 PM CDT

* AT 752 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A
  THUNDERSTORM WITH A DEVELOPING TORNADO OVER EXTREME NORTHEASTERN
  CULBERSON COUNTY...ABOUT 32 MILES WEST OF MENTONE...MOVING   
  NORTHEAST AT 20 MPH.

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.

LARGE HAIL TO 2 INCHES AND DIAMETER...DAMAGING THUNDERSTORM WINDS...
AND DEADLY LIGHTNING ARE ALSO LIKELY WITH THIS STORM.

STAY TUNED TO LOCAL MEDIA OUTLETS FOR THE LATEST SEVERE WEATHER
INFORMATION.

LAT...LON 3180 10425 3170 10408 3193 10392 3199 10397
          3202 10414

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Midland/Odessa, TX wrote its last area forecast discussion before this tornado warning went out at Apr 29, 2:10 PM CDT, 5 hours 42 minutes earlier.

Area forecast discussion, Apr 29, 2:10 PM CDT, 5 hours 42 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIDLAND TX
210 PM CDT THU APR 29 1999

SFC BOUNDARY AND LOW CLOUDS ARE RETARDING HEATING ACROSS MOST AREAS
EAST OF THE PECOS TODAY...ALTHOUGH CLOUD COVER PRESENTLY BEGINNING
TO ERODE NEAR THE SFC BOUNDARY. WEST OF THE PECOS SFC TEMPS ARE MUCH
HIGHER...BUT MOISTURE LEVELS ARE A BIT LOWER...TOO. I FEEL THAT THE
BEST CHANCE FOR SIGNIFICANT CONVECTION TODAY WOULD BE AFTERNOON
DEVELOPMENT ON THE WARM SIDE OF THE SFC BOUNDARY. ANY STORMS THAT
FORM AND MOVE NEWD INTO THE MORE MOIST AIR ACROSS THE PERMIAN BASIN
WOULD ENCOUNTER CAPE VALUES IN THE RANGE OF 2000-2500+ J/KG.
HODOGRAPH ALSO LOOKING MORE AND MORE FAVORABLE FOR THE POSSIBILITY
OF ROTATING STORMS TONIGHT. AS FOR TOMORROW...PESKY UPPER LEVEL LOW
STILL HANING AROUND OVER NV/AZ REGION WITH A STRONGER SWLY FLO
ALOFT. WIND SHEAR PROFILES LOOK EVEN MORE IMPRESSIVE TOMORROW...WITH
STRONGER LOW LEVEL SELY FLOW ACROSS THE REGION...MORE MOISTURE AND
INSTABILITY...AND STRONGER WINDS ALOFT. ON TOP OF ALL THIS...MODELS
KICK OUT A SHORTWAVE FROM THE LOW AND PROG IT TO MOVE ACROSS THE
AREA DURING THE LATE AFTERNOON/EARLY EVENING HOURS. WHILE WE DO HAVE
SOME FACTORS TODAY THAT MAY COUNT AGAINST THE POSSIBILITY OF SEVERE
CONVECTION...I SEE LITTLE IF ANY REASON TO DOUBT THE FORMATION OF
SIGNIFICANT CONVECTION TOMORROW...AND THE MAF CWA COULD EVEN SEE A
TORNADIC THUNDERSTORM OR TWO. LOOKING INTO SATURDAY...UPPER LOW
SHOULD BE APPROACHING FROM OUR WEST. WILL KEEP QUITE A FEW CLOUDS
AROUND WITH A CHANCE OF SHOWERS OR TSTMS.

PRELIM NUMBERS...
MAF 60/79/56/78 4354
CNM 55/80/51/78 3444
MRF 45/75/47/73 2232
P07 57/81/60/79 4343

DJK

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 29, 7:35 PM CDTSevere Thunderstorm WarningMAFCulberson40 min
Apr 29, 8:30 PM CDTTornado WarningMAFLoving, Reeves45 min
Apr 29, 8:43 PM CDTSevere Thunderstorm WarningMAFCulberson62 min
Apr 29, 9:15 PM CDTTornado WarningMAFReeves45 min
Apr 29, 9:42 PM CDTTornado WarningMAFCulberson48 min
Apr 29, 9:44 PM CDTFlash Flood WarningMAFLoving, Reeves, Ward3 hr
Apr 29, 11:19 PM CDTSevere Thunderstorm WarningMAFLoving, Reeves26 min
Apr 30, 11:35 AM CDTTornado WarningMAFLoving25 min
Apr 30, 12:14 PM CDTSevere Thunderstorm WarningMAFLoving, Reeves46 min
Apr 30, 12:24 PM CDTFlash Flood WarningMAFReeves3 hr
Apr 30, 1:02 PM CDTSevere Thunderstorm WarningMAFLoving18 min
Apr 30, 1:13 PM CDTSevere Thunderstorm WarningMAFBrewster62 min
Apr 30, 1:18 PM CDTSevere Thunderstorm WarningMAFPecos42 min
Apr 30, 2:08 PM CDTSevere Thunderstorm WarningMAFBrewster37 min
Apr 30, 2:49 PM CDTSevere Thunderstorm WarningMAFLoving26 min
Apr 30, 2:58 PM CDTSevere Thunderstorm WarningMAFTerrell47 min
Apr 30, 3:29 PM CDTTornado WarningMAFAndrews, Gaines31 min
Apr 30, 4:11 PM CDTFlash Flood WarningMAFLoving3 hr
Apr 30, 4:32 PM CDTTornado WarningMAFGaines43 min
Apr 30, 4:55 PM CDTSevere Thunderstorm WarningMAFLoving45 min
Apr 30, 5:12 PM CDTTornado WarningMAFGaines33 min
Apr 30, 5:47 PM CDTSevere Thunderstorm WarningMAFGaines58 min
Apr 30, 6:21 PM CDTSevere Thunderstorm WarningMAFLoving44 min
Apr 30, 6:40 PM CDTSevere Thunderstorm WarningMAFGaines50 min

Nearby

Tornado Warnings in Texas, 1999Every tornado warning in 1999Tornadoes in 1999

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.