Alert archive / Texas / Severe Thunderstorm Watches in 2017

Severe Thunderstorm Watch 141

April 12, 20176 counties in New Mexico; 19 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Apr 12, 2017, 1:04 PM MDT for 6 counties in New Mexico; 19 counties in Texas. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Apr 12, 2017, 1:04 PM MDT (19:04 UTC)
Expired
Apr 12, 2017, 8:00 PM MDT
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
2.5 in
Strongest gust expected
60 kt
All 25 counties

Chaves County, NM, Eddy County, NM, Lea County, NM, Lincoln County, NM, Otero County, NM, Torrance County, NM, Andrews County, TX, Crane County, TX, Culberson County, TX, Dawson County, TX, Ector County, TX, Gaines County, TX, Hudspeth County, TX, Jeff Davis County, TX, Loving County, TX, Lynn County, TX, Martin County, TX, Midland County, TX, Pecos County, TX, Reeves County, TX, Terry County, TX, Upton County, TX, Ward County, TX, Winkler County, TX, Yoakum County, TX

The radar

The Holloman AFB radar (KHDX), 166 km from the middle of the area, began a volume at 19:05 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 SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
10%
One or more EF2 to EF5 tornadoes
2%
Ten or more severe wind reports
20%
One or more gusts of 65 knots or more
10%
Ten or more severe hail reports
30%
One or more hailstones of 2 inches or more
30%
Six or more combined severe hail and wind reports
50%

Warnings issued inside it

47 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Apr 12, 1:12 PM MDTSevere Thunderstorm WarningEPZOtero48 min
Apr 12, 1:13 PM MDTSevere Thunderstorm WarningMAFWinkler47 min
Apr 12, 1:28 PM MDTSevere Thunderstorm WarningMAFGaines32 min
Apr 12, 1:29 PM MDTSevere Thunderstorm WarningEPZOtero46 min
Apr 12, 1:30 PM MDTSevere Thunderstorm WarningMAFReeves45 min
Apr 12, 1:33 PM MDTSevere Thunderstorm WarningLUBTerry, Yoakum27 min
Apr 12, 1:38 PM MDTSevere Thunderstorm WarningABQTorrance27 min
Apr 12, 1:53 PM MDTSevere Thunderstorm WarningEPZOtero52 min
Apr 12, 1:59 PM MDTSevere Thunderstorm WarningMAFWard, Winkler28 min
Apr 12, 2:00 PM MDTSevere Thunderstorm WarningLUBTerry30 min
Apr 12, 2:10 PM MDTSevere Thunderstorm WarningABQLincoln50 min
Apr 12, 2:10 PM MDTSevere Thunderstorm WarningMAFPecos, Reeves65 min
Apr 12, 2:11 PM MDTSevere Thunderstorm WarningEPZOtero49 min
Apr 12, 2:11 PM MDTSevere Thunderstorm WarningMAFReeves49 min
Apr 12, 2:27 PM MDTSevere Thunderstorm WarningMAFCulberson63 min
Apr 12, 2:31 PM MDTSevere Thunderstorm WarningABQChaves27 min
Apr 12, 2:37 PM MDTSevere Thunderstorm WarningEPZHudspeth38 min
Apr 12, 2:56 PM MDTSevere Thunderstorm WarningABQTorrance49 min
Apr 12, 3:03 PM MDTSevere Thunderstorm WarningEPZOtero21 min
Apr 12, 3:24 PM MDTSevere Thunderstorm WarningEPZHudspeth51 min
Apr 12, 3:30 PM MDTSevere Thunderstorm WarningABQChaves33 min
Apr 12, 3:30 PM MDTSevere Thunderstorm WarningMAFEddy60 min
Apr 12, 3:48 PM MDTSevere Thunderstorm WarningMAFJeff Davis, Reeves42 min
Apr 12, 3:50 PM MDTSevere Thunderstorm WarningEPZOtero40 min
Apr 12, 4:07 PM MDTSevere Thunderstorm WarningEPZHudspeth53 min
Apr 12, 4:18 PM MDTSevere Thunderstorm WarningMAFPecos, Reeves42 min
Apr 12, 4:26 PM MDTSevere Thunderstorm WarningMAFEddy64 min
Apr 12, 4:32 PM MDTFlash Flood WarningEPZHudspeth88 min
Apr 12, 4:42 PM MDTSevere Thunderstorm WarningMAFCulberson, Loving, Reeves48 min
Apr 12, 4:47 PM MDTSevere Thunderstorm WarningEPZHudspeth58 min
Apr 12, 4:54 PM MDTSevere Thunderstorm WarningMAFEddy66 min
Apr 12, 4:59 PM MDTSevere Thunderstorm WarningEPZOtero, Sierra46 min
Apr 12, 5:00 PM MDTSevere Thunderstorm WarningMAFPecos, Reeves32 min
Apr 12, 5:00 PM MDTSevere Thunderstorm WarningMAFCulberson60 min
Apr 12, 5:23 PM MDTSevere Thunderstorm WarningMAFReeves52 min
Apr 12, 5:29 PM MDTSevere Thunderstorm WarningEPZOtero61 min
Apr 12, 5:49 PM MDTSevere Thunderstorm WarningMAFCulberson, Jeff Davis, Reeves56 min
Apr 12, 5:55 PM MDTSevere Thunderstorm WarningEPZOtero32 min
Apr 12, 5:58 PM MDTSevere Thunderstorm WarningMAFJeff Davis, Reeves47 min
Apr 12, 6:12 PM MDTSevere Thunderstorm WarningEPZOtero48 min
Apr 12, 6:15 PM MDTSevere Thunderstorm WarningMAFReeves45 min
Apr 12, 6:32 PM MDTSevere Thunderstorm WarningMAFEddy, Lea43 min
Apr 12, 6:35 PM MDTSevere Thunderstorm WarningMAFJeff Davis, Reeves40 min
Apr 12, 6:55 PM MDTSevere Thunderstorm WarningEPZOtero35 min
Apr 12, 7:11 PM MDTSevere Thunderstorm WarningMAFLea49 min
Apr 12, 7:19 PM MDTTornado WarningMAFLea26 min
Apr 12, 7:44 PM MDTTornado WarningMAFLea31 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 7.1 hours before the alert went out and 226 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 2017-04-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2017-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -10 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
906 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
-10 m²/s²
0-3 km storm-relative helicity
-60 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 12, 11:04 AM MDTMesoscale DiscussionSPCChaves, Eddy, Guadalupe, Lea, Lincoln, Mora and 3 more2 hr

Nearby

Severe Thunderstorm Watches in Texas, 2017Severe Thunderstorm Watches in New Mexico, 2017Every severe thunderstorm watch in 2017

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.