Alert archive / Texas / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 13, NWS Austin/San Antonio, TX

January 10, 20207 counties in Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Jan 10, 2020, 8:26 PM CST for 7 counties in Texas. It was in force for 49 min. 2 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 10, 2020, 8:26 PM CST (02:26 UTC)
Expired: Jan 10, 2020, 9:15 PM CST
In force: 49 min
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 70.0 mph

Counties Bastrop County, TX, Caldwell County, TX, Gonzales County, TX, Guadalupe County, TX, Hays County, TX, Travis County, TX, Wilson County, TX

The radar

The Austin/San Antonio radar (KEWX), 58 km from the middle of the area, began a volume at 02:30 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 10, 8:31 PM CST	TSTM WND DMG	2 Nnw Lockhart, TX	TWO 18-WHEELERS BLOWN OVER ON SH-130 JUST NORTH OF LOCKHART.
Jan 10, 8:35 PM CST	TSTM WND DMG	1 W Dale, TX	PUBLIC REPORT OF A FENCE DESTROYED, TREES DOWNED, ROOF TORN OFF A BARN, PORTION OF ROOF TORN OFF A HOUSE, AND STRUCTURE DAMAGE TO A GARAGE.

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.

Issued	Product	Office	Lasted
Jan 10, 3:30 PM CST	Severe Thunderstorm Watch	SPC	68 days

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 2.4 hours before the alert went out and 222 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: 1973 J/kg
Mixed-layer CIN: -274 J/kg
Mixed-layer LCL: 652 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 365 m²/s²
0-3 km storm-relative helicity: 441 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

As transmitted.

032 
WUUS54 KEWX 110226
SVREWX
TXC021-055-177-187-209-453-493-110315-
/O.NEW.KEWX.SV.W.0013.200111T0226Z-200111T0315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Austin/San Antonio TX
826 PM CST Fri Jan 10 2020

The National Weather Service in Austin San Antonio has issued a

* Severe Thunderstorm Warning for...
  Caldwell County in south central Texas...
  Southeastern Hays County in south central Texas...
  Guadalupe County in south central Texas...
  Southern Travis County in south central Texas...
  Southwestern Bastrop County in south central Texas...
  Gonzales County in south central Texas...
  Northeastern Wilson County in south central Texas...

* Until 915 PM CST.

* At 826 PM CST, severe thunderstorms were located along a line
  extending from near Uhland to near Seguin to near Stockdale, moving
  east at 40 mph.

  HAZARD...70 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  San Marcos, Kyle, Seguin, Buda, Lockhart, Bastrop, Gonzales,
  Luling, Nixon, Martindale, Waelder, Uhland, Mustang Ridge,
  Kingsbury, Niederwald, Smiley, Staples, Fentress, Sutherland
  Springs and Cedar Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 2986 9724 2979 9732 2974 9726 2959 9728
      2924 9743 2926 9806 3007 9787 3014 9719
TIME...MOT...LOC 0226Z 274DEG 36KT 3000 9778 2959 9789 2925 9801 

TORNADO...POSSIBLE
HAIL...0.75IN
WIND...70MPH
 
$$

BMW

2 follow-up statements

777 
WWUS54 KEWX 110239
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
839 PM CST Fri Jan 10 2020

TXC209-453-110248-
/O.CAN.KEWX.SV.W.0013.000000T0000Z-200111T0315Z/
Hays TX-Travis TX-
839 PM CST Fri Jan 10 2020

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HAYS AND SOUTHERN
TRAVIS COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 1000 PM CST for
south central Texas.

LAT...LON 2986 9724 2979 9732 2974 9726 2959 9728
      2924 9743 2925 9791 2926 9792 3001 9774
      3010 9761 3014 9719
TIME...MOT...LOC 0238Z 274DEG 36KT 2999 9764 2958 9775 2924 9787 

$$

TXC021-055-177-187-493-110315-
/O.CON.KEWX.SV.W.0013.000000T0000Z-200111T0315Z/
Caldwell TX-Guadalupe TX-Bastrop TX-Gonzales TX-Wilson TX-
839 PM CST Fri Jan 10 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CST
FOR CALDWELL...EASTERN GUADALUPE...SOUTHWESTERN BASTROP...GONZALES
AND NORTHEASTERN WILSON COUNTIES...

At 838 PM CST, severe thunderstorms were located along a line
extending from near Mustang Ridge to 6 miles southeast of Kingsbury
to near Pandora, moving east at 40 mph.

HAZARD...70 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations impacted include...
Lockhart, Bastrop, Gonzales, Luling, Nixon, Waelder, Mustang Ridge,
Kingsbury, Niederwald, Smiley, Fentress, Cedar Creek, Palmeto State
Park, Rosanky, Pandora, Wyldwood, Upton, Brownsboro, Hills Prairie
and Watterson.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 2986 9724 2979 9732 2974 9726 2959 9728
      2924 9743 2925 9791 2926 9792 3001 9774
      3010 9761 3014 9719
TIME...MOT...LOC 0238Z 274DEG 36KT 2999 9764 2958 9775 2924 9787 

TORNADO...POSSIBLE
HAIL...0.75IN
WIND...70MPH
 
$$

BMW

805 
WWUS54 KEWX 110253
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
853 PM CST Fri Jan 10 2020

TXC187-493-110303-
/O.CAN.KEWX.SV.W.0013.000000T0000Z-200111T0315Z/
Guadalupe TX-Wilson TX-
853 PM CST Fri Jan 10 2020

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN GUADALUPE AND 
NORTHEASTERN WILSON COUNTIES IS CANCELLED... 

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 1000 PM CST for
south central Texas.

LAT...LON 2986 9724 2979 9732 2974 9726 2959 9728
      2924 9743 2925 9775 3011 9751 3014 9719
TIME...MOT...LOC 0253Z 274DEG 36KT 2998 9748 2957 9759 2923 9771 

$$

TXC021-055-177-110315-
/O.CON.KEWX.SV.W.0013.000000T0000Z-200111T0315Z/
Caldwell TX-Bastrop TX-Gonzales TX-
853 PM CST Fri Jan 10 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CST
FOR EASTERN CALDWELL...SOUTHWESTERN BASTROP AND GONZALES COUNTIES...

At 853 PM CST, severe thunderstorms were located along a line
extending from 7 miles south of Cedar Creek to Palmeto State Park to
near Nixon, moving east at 40 mph.

HAZARD...70 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations impacted include...
Bastrop, Gonzales, Luling, Waelder, Smiley, Cedar Creek, Palmeto
State Park, Rosanky, Wyldwood, Upton, Brownsboro, Delhi, Bastrop
State Park, Hills Prairie, Rockne, Oak Forest, Watterson, Cost,
McNeil and Red Rock.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 2986 9724 2979 9732 2974 9726 2959 9728
      2924 9743 2925 9775 3011 9751 3014 9719
TIME...MOT...LOC 0253Z 274DEG 36KT 2998 9748 2957 9759 2923 9771 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...70MPH
 
$$

BMW

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 10, 6:07 PM CST	Special Weather Statement	EWX	Zavala	38 min
Jan 10, 6:13 PM CST	Special Weather Statement	EWX	Blanco	62 min
Jan 10, 6:23 PM CST	Special Weather Statement	EWX	Uvalde	37 min
Jan 10, 6:45 PM CST	Special Weather Statement	EWX	Kendall, Medina	60 min
Jan 10, 6:46 PM CST	Severe Thunderstorm Warning	EWX	Blanco, Comal, Hays, Kendall	38 min
Jan 10, 6:52 PM CST	Severe Thunderstorm Warning	EWX	Frio, Medina	38 min
Jan 10, 6:52 PM CST	Tornado Warning	EWX	Kendall	23 min
Jan 10, 7:03 PM CST	Severe Thunderstorm Warning	EWX	Blanco, Kendall	42 min
Jan 10, 7:19 PM CST	Severe Thunderstorm Warning	EWX	Atascosa, Bexar, Medina	56 min
Jan 10, 7:34 PM CST	Special Weather Statement	EWX	Comal	26 min
Jan 10, 7:49 PM CST	Severe Thunderstorm Warning	EWX	Caldwell, Hays	41 min
Jan 10, 7:53 PM CST	Severe Thunderstorm Warning	EWX	Bexar, Comal, Gonzales, Guadalupe, Hays, Wilson	37 min
Jan 10, 8:03 PM CST	Tornado Warning	EWX	Guadalupe	27 min
Jan 10, 8:08 PM CST	Special Weather Statement	EWX	Travis, Williamson	52 min
Jan 10, 8:13 PM CST	Areal Flood Advisory	EWX	Travis, Williamson	4 hr
Jan 10, 8:32 PM CST	Tornado Warning	EWX	Caldwell, Gonzales, Guadalupe	28 min
Jan 10, 9:01 PM CST	Severe Thunderstorm Warning	EWX	Bastrop, DeWitt, Fayette, Gonzales, Lavaca, Lee	74 min

Nearby

Severe Thunderstorm Warnings in Texas, 2020 Every severe thunderstorm warning in 2020

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.