Alert archive / Texas / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 6, NWS Austin/San Antonio, TX

January 15, 2017Edwards County, Kerr County, Real County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Jan 15, 2017, 6:42 PM CST for Edwards County, Kerr County, Real County, Texas. It was in force for 48 min. 1 report 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, 6:42 PM CST (00:42 UTC)
Expired: Jan 15, 2017, 7:30 PM CST
In force: 48 min
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Edwards County, TX, Kerr County, TX, Real County, TX

The radar

The Laughlin AFB radar (KDFX), 109 km from the middle of the area, began a volume at 00:43 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

Time	Report	Where	Remark
Jan 15, 7:08 PM CST	HAIL 1	11 Nne Prade Ranch, TX	HAIL UP TO THE SIZE OF QUARTERS NEAR THE INTERSECTION OF US ROUTE 83 AND TEXAS HIGHWAY 41.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 26 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jan 15, 2:54 PM CST	Severe Thunderstorm Watch	SPC	7 hr
Jan 15, 6:00 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Del Rio, TX (KDLF), launched 00:00Z, 0.7 hours before the alert went out and 136 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: 540 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 1460 m above ground
0-6 km bulk shear: 0 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: 0 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

810 
WUUS54 KEWX 160042
SVREWX
TXC137-265-385-160130-
/O.NEW.KEWX.SV.W.0006.170116T0042Z-170116T0130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Austin/San Antonio TX
642 PM CST SUN JAN 15 2017

The National Weather Service in Austin San Antonio has issued a

* Severe Thunderstorm Warning for...
  Northwestern Kerr County in south central Texas...
  Northeastern Edwards County in south central Texas...
  Northern Real County in south central Texas...

* Until 730 PM CST

* At 641 PM CST, a severe thunderstorm was located 16 miles north of
  Vance, or 17 miles east of Rocksprings, moving east at 45 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Locations impacted include...
  Prade Ranch and Us-83 Near The Kerr-Kimble County Line. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A tornado watch remains in effect until midnight CST for south
central Texas.

LAT...LON 3029 9954 2991 9952 2990 9996 3013 10004
      3029 9983
TIME...MOT...LOC 0041Z 247DEG 37KT 3004 9991 

HAIL...1.00IN
WIND...60MPH
 
$$

BMW

2 follow-up statements

933 
WWUS54 KEWX 160054
SVSEWX

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

TXC137-265-385-160130-
/O.CON.KEWX.SV.W.0006.000000T0000Z-170116T0130Z/
Kerr TX-Edwards TX-Real TX-
654 PM CST SUN JAN 15 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CST
FOR NORTHWESTERN KERR...NORTHEASTERN EDWARDS AND NORTHEASTERN REAL
COUNTIES...

At 653 PM CST, a severe thunderstorm was located 16 miles west of
Kerr Wildlife Management Area, or 25 miles north of Leakey, moving
northeast at 45 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations impacted include...
Prade Ranch.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A tornado watch remains in effect until midnight CST for south
central Texas.

LAT...LON 3025 9954 2991 9952 2990 9988 3013 9990
      3020 9979
TIME...MOT...LOC 0053Z 247DEG 37KT 3009 9977 

HAIL...1.00IN
WIND...60MPH
 
$$

BMW

851 
WWUS54 KEWX 160116
SVSEWX

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

TXC137-385-160126-
/O.CAN.KEWX.SV.W.0006.000000T0000Z-170116T0130Z/
Edwards TX-Real TX-
716 PM CST SUN JAN 15 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN EDWARDS AND
NORTHEASTERN REAL COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A tornado watch remains in effect until midnight CST for south
central Texas.

LAT...LON 3025 9954 2991 9952 2991 9966 3013 9967
      3022 9965
TIME...MOT...LOC 0116Z 247DEG 37KT 3018 9952 

$$

TXC265-160130-
/O.CON.KEWX.SV.W.0006.000000T0000Z-170116T0130Z/
Kerr TX-
716 PM CST SUN JAN 15 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CST
FOR NORTHWESTERN KERR COUNTY...

At 716 PM CST, a line of thunderstorms was located near Kerr 
Wildlife Management Area, or 24 miles northwest of Kerrville, moving 
northeast at 45 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

This severe thunderstorm will remain over mainly rural areas of
northwestern Kerr County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A tornado watch remains in effect until midnight CST for south
central Texas.

LAT...LON 3025 9954 2991 9952 2991 9966 3013 9967
      3022 9965
TIME...MOT...LOC 0116Z 247DEG 37KT 3018 9952 

HAIL...1.00IN
WIND...60MPH
 
$$

BMW

What forecasters said that day

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

NWS Austin/San Antonio, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Jan 15, 3:05 PM CST, 3 hours 37 minutes earlier.

Area forecast discussion, Jan 15, 3:05 PM CST, 3 hours 37 minutes before

Area Forecast Discussion
National Weather Service Austin/San Antonio TX
305 PM CST Sun Jan 15 2017

.SHORT TERM (Tonight through Monday Night)...
Strong to severe convection is about to enter the western boundary of
our forecast area, northwest of Del Rio. This convection is being
generated by a strong shortwave trough, unstable Gulf air, and a
slowly northward moving warm front. High resolution mesoscale models
have been consistent in depicting a thin MCS with embedded supercell
structures. The Texas Tech and NSSL WRFs have verified best so far
with timing and linear mode, with recent HRRR runs showing a more
broken line of supercells. Overall, prior forecasts are on track and
we expect the line to sweep across the area, generally along and
north of U.S. 90. The line should weaken with time, and reach the
I-35 corridor around 05-06Z. While one or two brief tornadoes are
possible, the main severe threats will be large hail and damaging
winds. Rainfall will average 1/2 to 1 inch, although some locations
in the Edwards Plateau, Hill Country, and Metro Austin could receive
up to 2-3 inches by daybreak Monday. Showers and thunderstorms will
linger on the coastal plains Monday, but rainfall amounts should be
1/4 inch or less.

&&

.LONG TERM (Tuesday through Sunday)...
Highly amplified and progressive flow will continue across the CONUS
through the next 7-10 days. This will bring a progression of fairly
sharp shortwave troughs through a general longwave trough over the
Plains. The net result for our area will be a cold front bringing
colder conditions Wednesday and Thursday, then back to above normal
temperatures Friday through Sunday before another cold front. PoPs
will be in the forecast through Friday, although rainfall should be
light. Just beyond this forecast period is another strong front and
the potential for strong convection, then a colder, drier period.

&&

.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry              61  71  51  57  49 /  80  40  30  60  50
Austin Bergstrom Intl Airport  62  71  52  58  49 /  80  40  30  60  50
New Braunfels Muni Airport     62  72  54  58  51 /  70  40  40  60  50
Burnet Muni Airport            55  69  46  55  46 /  90  10  20  50  50
Del Rio Intl Airport           50  72  51  60  50 /  60   0  -   40  30
Georgetown Muni Airport        58  69  48  56  47 /  90  30  30  50  50
Hondo Muni Airport             60  75  55  60  51 /  70  10  20  60  50
San Marcos Muni Airport        62  72  53  59  50 /  70  40  40  60  50
La Grange - Fayette Regional   66  72  57  61  53 /  70  60  50  50  50
San Antonio Intl Airport       62  74  55  60  52 /  70  20  30  60  50
Stinson Muni Airport           62  74  57  61  53 /  70  20  30  50  50

&&

.EWX WATCHES/WARNINGS/ADVISORIES...
None.
&&

Mesoscale/Aviation...24
Synoptic/Grids...26
Public Service/Data Collection...Williams

Hazardous weather outlook, Jan 15, 4:58 AM CST, 13 hours 44 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
458 AM CST SUN JAN 15 2017

TXZ171>173-183>194-202>209-217>225-228-161100-
LLANO-BURNET-WILLIAMSON-VAL VERDE-EDWARDS-REAL-KERR-BANDERA-
GILLESPIE-KENDALL-BLANCO-HAYS-TRAVIS-BASTROP-LEE-KINNEY-UVALDE-
MEDINA-BEXAR-COMAL-GUADALUPE-CALDWELL-FAYETTE-MAVERICK-ZAVALA-
FRIO-ATASCOSA-WILSON-KARNES-GONZALES-DE WITT-LAVACA-DIMMIT-
458 AM CST SUN JAN 15 2017

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH-CENTRAL TEXAS..

.DAY ONE...TODAY AND TONIGHT.

THERE IS A CHANCE FOR STRONG TO SEVERE THUNDERSTORMS THIS AFTERNOON
AND TONIGHT. THE GREATEST THREAT FOR SEVERE STORMS WILL BE ALONG
AND WEST OF I-35. DAMAGING WIND GUSTS...ISOLATED TORNADOES...AND
LARGE HAIL WILL BE POSSIBLE. LOCALLY HEAVY RAIN IS ALSO POSSIBLE
ACROSS THE HILL COUNTRY AND MAY CAUSE SOME FLOODING.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS SHOULD REPORT ANY SEVERE WEATHER AND EXCESSIVE RAINFALL
AMOUNTS.

In the hours before

Local storm report, Jan 15, 5:41 PM CST, 1 hour 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
541 PM CST SUN JAN 15 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0530 PM     HAIL             4 E CARTA VALLEY        29.79N 100.62W
01/15/2017  M1.50 INCH       EDWARDS            TX   STORM CHASER

            QUARTER TO PING PONG SIZE HAIL COVERING THE ROAD ON
            HIGHWAY 377 NEAR FM2523

&&

EVENT NUMBER EWX1700017

SBS

Local storm report, Jan 15, 6:04 PM CST, 38 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
604 PM CST SUN JAN 15 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0556 PM     HAIL             9 NNE KICKAPOO CAVERN S 29.73N 100.41W
01/15/2017  E2.50 INCH       EDWARDS            TX   STORM CHASER

&&

EVENT NUMBER EWX1700018

SBS

Special weather statement, Jan 15, 6:12 PM CST, 30 minutes before

Special Weather Statement
National Weather Service Austin/San Antonio TX
612 PM CST SUN JAN 15 2017

TXZ184-160100-
Edwards TX-
612 PM CST SUN JAN 15 2017

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL EDWARDS COUNTY UNTIL 700
PM CST...

At 612 PM CST, Doppler radar was tracking a strong thunderstorm over
Rocksprings, moving east at 35 mph.

Dime size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Rocksprings and Devils Sinkhole State Natural Area.

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.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

A tornado watch remains in effect until midnight CST for south
central Texas.

A severe thunderstorm watch remains in effect until 1000 PM CST for
south central Texas.

LAT...LON 3015 9994 3008 9995 3008 9997 3003 9997
      3002 9999 2997 9999 2996 10000 2997 10032
      3009 10031
TIME...MOT...LOC 0012Z 265DEG 32KT 3003 10024

Special weather statement, Jan 15, 6:21 PM CST, 21 minutes before

Special Weather Statement
National Weather Service Austin/San Antonio TX
621 PM CST SUN JAN 15 2017

TXZ183-160100-
Val Verde TX-
621 PM CST SUN JAN 15 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN VAL VERDE COUNTY
UNTIL 700 PM CST...

At 621 PM CST, Doppler radar was tracking a strong thunderstorm near
Lake View, or near Del Rio, moving northeast at 30 mph.

Dime size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Lake View and Cienegas Terrace.

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.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

A severe thunderstorm watch remains in effect until 1000 PM CST for
south central Texas.

LAT...LON 2958 10076 2943 10070 2936 10098 2936 10100
      2937 10101 2944 10103
TIME...MOT...LOC 0021Z 240DEG 27KT 2942 10097

Special weather statement, Jan 15, 6:30 PM CST, 12 minutes before

Special Weather Statement
National Weather Service Austin/San Antonio TX
630 PM CST SUN JAN 15 2017

TXZ183-184-160130-
Val Verde TX-Edwards TX-
630 PM CST SUN JAN 15 2017

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN EDWARDS AND SOUTHEASTERN
VAL VERDE COUNTIES UNTIL 730 PM CST...

At 630 PM CST, Doppler radar was tracking a strong thunderstorm 10
miles southwest of Carta Valley, or 16 miles south of Loma Alta,
moving northeast at 30 mph.

Dime size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Loma Alta, Carta Valley, Flour Mills, Devils Shores and Vinegarone.

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.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

A severe thunderstorm watch remains in effect until 1000 PM CST for
south central Texas.

LAT...LON 2987 10092 3029 10031 3029 10028 2971 10039
      2962 10060 2962 10070 2958 10070 2947 10095
TIME...MOT...LOC 0030Z 240DEG 27KT 2967 10078

Local storm report, Jan 15, 6:37 PM CST, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
637 PM CST SUN JAN 15 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0633 PM     HAIL             12 ENE ROCKSPRINGS      30.08N 100.03W
01/15/2017  E0.25 INCH       EDWARDS            TX   COCORAHS

&&

EVENT NUMBER EWX1700019

SBS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 15, 6:12 PM CST	Special Weather Statement	EWX	Edwards	48 min
Jan 15, 6:21 PM CST	Special Weather Statement	EWX	Kinney	39 min
Jan 15, 6:24 PM CST	Severe Thunderstorm Warning	EWX	Edwards, Real	66 min
Jan 15, 6:30 PM CST	Special Weather Statement	EWX	Edwards	60 min
Jan 15, 6:43 PM CST	Special Weather Statement	EWX	Kimble	32 min
Jan 15, 6:48 PM CST	Special Weather Statement	EWX	Kinney	42 min
Jan 15, 7:00 PM CST	Severe Thunderstorm Warning	EWX	Kinney	28 min
Jan 15, 7:08 PM CST	Severe Thunderstorm Warning	EWX	Bandera	67 min
Jan 15, 7:13 PM CST	Severe Thunderstorm Warning	EWX	Kinney	47 min
Jan 15, 7:17 PM CST	Special Weather Statement	EWX	Edwards	43 min
Jan 15, 7:33 PM CST	Special Weather Statement	EWX	Kerr	42 min
Jan 15, 7:46 PM CST	Severe Thunderstorm Warning	EWX	Kinney	29 min
Jan 15, 7:48 PM CST	Tornado Warning	EWX	Kerr	27 min
Jan 15, 7:59 PM CST	Severe Thunderstorm Warning	EWX	Kinney, Uvalde	46 min
Jan 15, 8:14 PM CST	Severe Thunderstorm Warning	EWX	Bandera, Kendall, Kerr	46 min
Jan 15, 8:16 PM CST	Special Weather Statement	EWX	Kerr, Real, Uvalde	44 min
Jan 15, 8:19 PM CST	Special Weather Statement	EWX	Kendall	41 min
Jan 15, 8:36 PM CST	Areal Flood Advisory	EWX	Bandera, Kerr, Real	3 hr
Jan 15, 8:56 PM CST	Special Weather Statement	EWX	Bandera, Gillespie, Kendall, Kerr, Medina, Uvalde	49 min
Jan 15, 8:59 PM CST	Severe Thunderstorm Warning	EWX	Kendall	46 min
Jan 15, 9:11 PM CST	Areal Flood Advisory	EWX	Kinney, Uvalde	3 hr
Jan 15, 9:27 PM CST	Tornado Warning	EWX	Kendall	33 min
Jan 15, 9:43 PM CST	Special Weather Statement	EWX	Bandera, Medina, Uvalde	62 min
Jan 15, 9:44 PM CST	Severe Thunderstorm Warning	EWX	Blanco, Comal, Kendall	46 min
Jan 15, 9:52 PM CST	Areal Flood Advisory	EWX	Bandera, Kendall, Kerr	3 hr
Jan 15, 10:22 PM CST	Special Weather Statement	EWX	Hays	38 min
Jan 15, 10:25 PM CST	Special Weather Statement	EWX	Bexar	50 min
Jan 15, 11:07 PM CST	Special Weather Statement	EWX	Hays, Travis	53 min
Jan 15, 11:16 PM CST	Special Weather Statement	EWX	Bexar, Comal	29 min
Jan 15, 11:21 PM CST	Areal Flood Advisory	EWX	Bexar	3 hr
Jan 15, 11:30 PM CST	Special Weather Statement	EWX	Bexar	45 min
Jan 15, 11:45 PM CST	Special Weather Statement	EWX	Bexar, Comal	30 min
Jan 16, 12:07 AM CST	Special Weather Statement	EWX	Williamson	38 min
Jan 16, 12:32 AM CST	Areal Flood Advisory	EWX	Comal, Hays	3 hr
Jan 16, 1:04 AM CST	Areal Flood Advisory	EWX	Bexar, Guadalupe	3 hr

Nearby

Severe Thunderstorm Warnings in Texas, 2017 Every 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.