Alert archive / Texas / Tornado Warnings in 2007

Tornado Warning 30, NWS Midland/Odessa, TX

April 30, 2007Dawson County, Texas

NWS Midland/Odessa, TX issued this tornado warning at Apr 30, 2007, 4:20 PM CDT for Dawson County, Texas. It was in force for 18 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 30, 2007, 4:20 PM CDT (21:20 UTC)
Expired
Apr 30, 2007, 4:38 PM CDT
In force
18 min
Issued by
NWS Midland/Odessa, TX
Area
Counties, with a storm outline in the text

County Dawson County, TX

The radar

The Midland/Odessa radar (KMAF), 95 km from the middle of the area, began a volume at 21:23 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.

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 9.3 hours before the alert went out and 95 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 2007-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 23 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 12:00Z on 2007-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 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
23 J/kg
Mixed-layer CIN
-151 J/kg
Mixed-layer LCL
972 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
55 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KMAF 302122
TORMAF
TXC115-302215-
/O.NEW.KMAF.TO.W.0030.070430T2120Z-070430T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
420 PM CDT MON APR 30 2007

THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A

* TORNADO WARNING FOR...
  DAWSON COUNTY IN WEST TEXAS...

* UNTIL 515 PM CDT

* AT 419 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO EARLIER
  NEAR LOOP FROM A STORM THAT IS NOW LOCATED 9 MILES SOUTHWEST OF    
  WELCH...OR 19 MILES NORTHWEST OF LAMESA...MOVING EAST AT 20 MPH.

* THE TORNADO WILL AFFECT THE FOLLOWING LOCATIONS...
  WELCH...
  PUNKIN CENTER...
  LAMESA...
  SAND...
  HANCOCK...
  
A TORNADO MAY FORM AT ANY TIME... TAKE COVER NOW. ABANDON MOBILE
HOMES AND VEHICLES FOR MORE SUBSTANTIAL SHELTER. AVOID WINDOWS.

TO REPORT SEVERE WEATHER ONLY... CALL THE NATIONAL WEATHER SERVICE
FORECAST OFFICE IN MIDLAND AT 1 800 597 3220.

LAT...LON 3292 10218 3262 10218 3254 10173 3292 10174

$$
1 follow-up statement
000 
WWUS54 KMAF 302138
SVSMAF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIDLAND/ODESSA TX
436 PM CDT MON APR 30 2007

TXC115-302146-
/O.CAN.KMAF.TO.W.0030.000000T0000Z-070430T2215Z/
DAWSON TX-
436 PM CDT MON APR 30 2007

...THE TORNADO WARNING FOR DAWSON COUNTY IS CANCELLED...

AT 436 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE STORM THAT PROMPTED THE TORNADO WARNING HAD WEAKENED AND NO
LONGER APPEARS CAPABLE OF PRODUCING TORNADOES OR OTHER SEVERE 
WEATHER. THEREFORE THE TORNADO WARNING IS CANCELLED. IT IS STILL 
POSSIBLE THIS STORM MAY FORM WEAK FUNNELS.

TO REPORT SEVERE WEATHER ONLY... CALL THE NATIONAL WEATHER SERVICE
FORECAST OFFICE IN MIDLAND AT 1 800 597 3220.

LAT...LON 3292 10218 3262 10218 3254 10173 3292 10174

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 29, 7:18 PM CDTFlash Flood WarningMAFCrane, Upton3 hr
Apr 29, 7:22 PM CDTFlash Flood WarningMAFHoward4 hr
Apr 29, 7:27 PM CDTSevere Thunderstorm WarningMAFUpton63 min
Apr 29, 7:29 PM CDTSevere Thunderstorm WarningMAFHoward61 min
Apr 29, 7:53 PM CDTTornado WarningMAFUpton67 min
Apr 29, 7:54 PM CDTFlash Flood WarningMAFMidland3 hr
Apr 29, 8:02 PM CDTSevere Thunderstorm WarningMAFBrewster58 min
Apr 29, 8:23 PM CDTFlash Flood WarningMAFMitchell4 hr
Apr 29, 8:27 PM CDTSevere Thunderstorm WarningMAFReagan63 min
Apr 29, 8:35 PM CDTSevere Thunderstorm WarningMAFPecos55 min
Apr 29, 8:36 PM CDTSevere Thunderstorm WarningMAFMidland24 min
Apr 29, 8:49 PM CDTSevere Thunderstorm WarningMAFGlasscock56 min
Apr 29, 9:22 PM CDTSevere Thunderstorm WarningMAFPecos38 min
Apr 29, 9:29 PM CDTFlash Flood WarningMAFPecos3 hr
Apr 29, 9:41 PM CDTSevere Thunderstorm WarningMAFTerrell64 min
Apr 29, 10:21 PM CDTFlash Flood WarningMAFDawson, Martin3 hr
Apr 29, 10:27 PM CDTSevere Thunderstorm WarningMAFTerrell63 min
Apr 29, 11:53 PM CDTSevere Thunderstorm WarningMAFPecos67 min
Apr 30, 1:26 AM CDTSevere Thunderstorm WarningMAFPecos49 min
Apr 30, 6:06 AM CDTSevere Thunderstorm WarningMAFTerrell24 min
Apr 30, 3:15 PM CDTSevere Thunderstorm WarningMAFGaines60 min
Apr 30, 3:45 PM CDTTornado WarningMAFGaines60 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.