Alert archive / Texas / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 3, NWS Austin/San Antonio, TX

January 15, 2017Edwards County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Jan 15, 2017, 5:17 PM CST for Edwards County, Texas. It was in force for 43 min. 4 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
Jan 15, 2017, 5:17 PM CST (23:17 UTC)
Expired
Jan 15, 2017, 6:00 PM CST
In force
43 min
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon
Tornado
Possible
Hail
2.5 in
Wind
60.0 mph

County Edwards County, TX

The radar

The Laughlin AFB radar (KDFX), 61 km from the middle of the area, began a volume at 23:17 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
Jan 15, 5:27 PM CSTHAIL 1.25Carta Valley, TXQUARTER TO SLIGHTLY LARGER SIZE HAILSTONES OBSERVED
Jan 15, 5:30 PM CSTHAIL 1.54 E Carta Valley, TXQUARTER TO PING PONG SIZE HAIL COVERING THE ROAD ON HIGHWAY 377 NEAR FM2523
Jan 15, 5:45 PM CSTHAIL 2.516 N Kickapoo Cavern St, TXTENNIS BALL SIZE HAIL 17 MILES SW OF ROCKSPRINGS
Jan 15, 5:56 PM CSTHAIL 2.59 Nne Kickapoo Cavern S, TX

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
Jan 15, 2:54 PM CSTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Del Rio, TX (KDLF), launched 12:00Z, 11.3 hours before the alert went out and 57 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, Del Rio, TX at 12:00Z on 2017-01-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 48 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, Del Rio, TX at 12:00Z on 2017-01-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 299 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
48 J/kg
Mixed-layer CIN
-160 J/kg
Mixed-layer LCL
686 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
299 m²/s²
0-3 km storm-relative helicity
400 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

360 
WUUS54 KEWX 152317
SVREWX
TXC137-160000-
/O.NEW.KEWX.SV.W.0003.170115T2317Z-170116T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
Severe Thunderstorm Warning
National Weather Service Austin/San Antonio TX
517 PM CST SUN JAN 15 2017

The National Weather Service in Austin San Antonio has issued a

* Severe Thunderstorm Warning for...
  Southwestern Edwards County in south central Texas...

* Until 600 PM CST

* At 517 PM CST, a severe thunderstorm was located over Carta Valley,
  or 9 miles south of Loma Alta, moving east at 35 mph.

  HAZARD...Tennis ball size hail and 60 mph wind gusts. 

  SOURCE...Radar indicated. 

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees. 

* Locations impacted include...
  Rocksprings and Carta Valley. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

This thunderstorm is capable of producing all types of severe weather
including extremely large hail, destructive straight line winds and
tornadoes. Move quickly to a safe shelter such as an interior room, a
bathroom, closet or basement.

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

&&

LAT...LON 2989 10070 3007 10022 2963 10023 2962 10043
      2962 10070
TIME...MOT...LOC 2317Z 256DEG 28KT 2979 10073 

TORNADO...POSSIBLE
HAIL...2.50IN
WIND...60MPH
 
$$
2 follow-up statements
546 
WWUS54 KEWX 152339
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
539 PM CST SUN JAN 15 2017

TXC137-160000-
/O.CON.KEWX.SV.W.0003.000000T0000Z-170116T0000Z/
Edwards TX-
539 PM CST SUN JAN 15 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM CST
FOR SOUTHWESTERN EDWARDS COUNTY...

At 539 PM CST, a severe thunderstorm was located 10 miles east of
Carta Valley, or 18 miles southeast of Loma Alta, moving east at 35
mph.

HAZARD...Tennis ball size hail and 60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees. 

This severe thunderstorm will remain over mainly rural areas of
southwestern Edwards County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

This thunderstorm is capable of producing all types of severe weather
including extremely large hail, destructive straight line winds and
tornadoes. Move quickly to a safe shelter, such as an interior room,
a bathroom or closet or basement.

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

&&

LAT...LON 2986 10062 2996 10023 2964 10023 2965 10041
      2966 10062
TIME...MOT...LOC 2339Z 260DEG 31KT 2977 10051 

TORNADO...POSSIBLE
HAIL...2.50IN
WIND...60MPH
 
$$
524 
WWUS54 KEWX 152346
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
546 PM CST SUN JAN 15 2017

TXC137-160000-
/O.CON.KEWX.SV.W.0003.000000T0000Z-170116T0000Z/
Edwards TX-
546 PM CST SUN JAN 15 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM CST
FOR SOUTHWESTERN EDWARDS COUNTY...

At 546 PM CST, a severe thunderstorm was located 14 miles east of
Carta Valley, or 21 miles southwest of Rocksprings, moving east at 35
mph.

HAZARD...Tennis ball size hail and 60 mph wind gusts. 

SOURCE...Radar indicated. 

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees. 

This severe thunderstorm will remain over mainly rural areas of
southwestern Edwards County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

This thunderstorm is capable of producing all types of severe weather
including extremely large hail, destructive straight line winds and
tornadoes. Move quickly to a safe shelter, such as an interior room,
a bathroom or closet or basement.

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

&&

LAT...LON 2987 10055 2993 10023 2964 10023 2965 10041
      2966 10054
TIME...MOT...LOC 2346Z 269DEG 29KT 2977 10044 

TORNADO...POSSIBLE
HAIL...2.50IN
WIND...60MPH
 
$$

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 15, 2:57 PM CSTSpecial Weather StatementEWXVal Verde48 min
Jan 15, 4:22 PM CSTSpecial Weather StatementEWXVal Verde38 min
Jan 15, 4:42 PM CSTSpecial Weather StatementEWXVal Verde48 min
Jan 15, 4:52 PM CSTSevere Thunderstorm WarningEWXVal Verde38 min
Jan 15, 5:57 PM CSTSevere Thunderstorm WarningEWXEdwards33 min

Nearby

Severe Thunderstorm Warnings in Texas, 2017Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.