Alert archive / Texas / Special Weather Statements in 2017

Special Weather Statement, NWS Midland/Odessa, TX

April 17, 2017Pecos County, Texas

NWS Midland/Odessa, TX issued this special weather statement at Apr 17, 2017, 5:43 PM CDT for Pecos County, Texas. It was in force for 62 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 17, 2017, 5:43 PM CDT (22:43 UTC)
Expired: Apr 17, 2017, 6:45 PM CDT
In force: 62 min
Issued by: NWS Midland/Odessa, TX

County Pecos County, TX

The radar

The Midland/Odessa radar (KMAF), 181 km from the middle of the area, began a volume at 22:44 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

Del Rio, TX (KDLF), launched 12:00Z, 10.7 hours before the alert went out and 238 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: 39 J/kg
Mixed-layer CIN: -540 J/kg
Mixed-layer LCL: 1057 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: -33 m²/s²
0-3 km storm-relative helicity: 78 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Apr 17, 5:40 PM CDT, 3 minutes earlier.

Area forecast discussion, Apr 17, 5:40 PM CDT, 3 minutes before

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Hazardous weather outlook, Apr 17, 1:59 PM CDT, 3 hours 44 minutes before

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In the hours before

Special weather statement, Apr 17, 3:21 PM CDT, 2 hours 22 minutes before

Special Weather Statement
National Weather Service Midland/Odessa TX
321 PM CDT MON APR 17 2017

TXZ074-081-172115-
Big Bend Area TX-Davis/Apache Mountains Area TX-
321 PM CDT MON APR 17 2017

...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL BREWSTER COUNTY
UNTIL 415 PM CDT...

At 321 PM CDT, Doppler radar was tracking a strong thunderstorm 9
miles southwest of Altuda, or 12 miles southeast of Alpine, moving
southwest at 10 mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.

Locations impacted include...
Elephant Mountain Wildlife Management Area.

LAT...LON 2992 10372 3033 10379 3033 10354 3019 10335
TIME...MOT...LOC 2021Z 054DEG 7KT 3020 10356

67

Special weather statement, Apr 17, 4:24 PM CDT, 1 hour 19 minutes before

Special Weather Statement
National Weather Service Midland/Odessa TX
424 PM CDT MON APR 17 2017

TXZ074-080-081-172230-
Big Bend Area TX-Marfa Plateau TX-Davis/Apache Mountains Area TX-
424 PM CDT MON APR 17 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN BREWSTER AND EAST
CENTRAL PRESIDIO COUNTIES UNTIL 530 PM CDT...

At 424 PM CDT, Doppler radar was tracking a strong thunderstorm 8
miles west of Elephant Mountain Wildlife Management Area, or 22 miles
south of Alpine, moving southwest at 15 mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.

Locations impacted include...
Elephant Mountain Wildlife Management Area and Elephant Mountain.

LAT...LON 3040 10356 3022 10346 2999 10342 2974 10381
      3020 10382
TIME...MOT...LOC 2124Z 037DEG 12KT 3004 10364

67

Special weather statement, Apr 17, 5:38 PM CDT, 5 minutes before

Special Weather Statement
National Weather Service Midland/Odessa TX
538 PM CDT MON APR 17 2017

TXZ081-172330-
Big Bend Area TX-
538 PM CDT MON APR 17 2017

...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL BREWSTER COUNTY
UNTIL 630 PM CDT...

At 537 PM CDT, Doppler radar was tracking a strong thunderstorm 22
miles north of Study Butte, or 28 miles north of Lajitas, moving
southeast at 10 mph.

Nickel size hail and wind gusts of 50 to 55 mph will be possible with
this storm.

This storm will remain over mainly rural areas of west central
Brewster County.

LAT...LON 2973 10375 2985 10355 2952 10333 2940 10371
TIME...MOT...LOC 2237Z 337DEG 9KT 2965 10361

80

Special weather statement, Apr 17, 5:43 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Midland/Odessa TX
543 PM CDT MON APR 17 2017

TXZ074-075-081-172345-
Pecos TX-Big Bend Area TX-Davis/Apache Mountains Area TX-
543 PM CDT MON APR 17 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTH CENTRAL PECOS AND NORTH
CENTRAL BREWSTER COUNTIES UNTIL 645 PM CDT...

At 542 PM CDT, Doppler radar was tracking a strong thunderstorm 15
miles northeast of Marathon, moving east at 25 mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.

Locations impacted include...
Sierra Madera.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3070 10298 3035 10256 3018 10309 3037 10322
TIME...MOT...LOC 2242Z 256DEG 20KT 3036 10305

67

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 16, 7:08 PM CDT	Severe Thunderstorm Warning	MAF	Andrews, Ector, Gaines, Martin	67 min
Apr 16, 7:22 PM CDT	Special Weather Statement	MAF	Andrews	53 min
Apr 16, 7:33 PM CDT	Severe Thunderstorm Warning	MAF	Glasscock, Midland, Reagan, Upton	42 min
Apr 16, 7:41 PM CDT	Severe Thunderstorm Warning	MAF	Terrell	64 min
Apr 16, 7:52 PM CDT	Special Weather Statement	MAF	Howard	68 min
Apr 16, 7:52 PM CDT	Severe Thunderstorm Warning	MAF	Andrews, Gaines	38 min
Apr 16, 8:18 PM CDT	Severe Thunderstorm Warning	MAF	Reagan, Upton	27 min
Apr 16, 8:20 PM CDT	Severe Thunderstorm Warning	MAF	Glasscock, Howard	55 min
Apr 16, 8:30 PM CDT	Severe Thunderstorm Warning	MAF	Andrews, Gaines	30 min
Apr 16, 8:47 PM CDT	Special Weather Statement	MAF	Reagan	43 min
Apr 16, 9:16 PM CDT	Special Weather Statement	MAF	Glasscock	44 min
Apr 16, 9:27 PM CDT	Areal Flood Advisory	MAF	Reagan	3 hr
Apr 16, 9:32 PM CDT	Special Weather Statement	MAF	Reagan	43 min
Apr 17, 3:21 PM CDT	Special Weather Statement	MAF	Brewster	54 min
Apr 17, 4:24 PM CDT	Special Weather Statement	MAF	Brewster	66 min
Apr 17, 5:38 PM CDT	Special Weather Statement	MAF	Brewster	52 min
Apr 17, 5:55 PM CDT	Severe Thunderstorm Warning	MAF	Brewster, Pecos	33 min

Nearby

Special Weather Statements in Texas, 2017 Every special weather statement 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.