Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS Austin/San Antonio, TX

March 22, 2021Travis County, Texas

NWS Austin/San Antonio, TX issued this special weather statement at Mar 22, 2021, 11:02 PM CDT for Travis County, Texas. It was in force for 58 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: Mar 22, 2021, 11:02 PM CDT (04:02 UTC)
Expired: Mar 23, 2021, 12:00 AM CDT
In force: 58 min
Issued by: NWS Austin/San Antonio, TX

County Travis County, TX

The radar

The Ft Hood radar (KGRK), 51 km from the middle of the area, began a volume at 04:01 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
Mar 22, 11:14 PM CDT	HAIL 0.75	5 Sse Bee Cave, TX	REPORT FROM MPING DIME HAIL (0.75 IN.).

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

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 4.0 hours before the alert went out and 272 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 679 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 404 m²/s²
0-3 km storm-relative helicity: 672 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

664 
WWUS84 KEWX 230402
SPSEWX

Special Weather Statement
National Weather Service Austin/San Antonio TX
1102 PM CDT Mon Mar 22 2021
 
TXZ191-192-230500-
Hays TX-Travis TX-
1102 PM CDT Mon Mar 22 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN HAYS AND TRAVIS COUNTIES
UNTIL MIDNIGHT CDT...

At 1101 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Leander to Henly. Movement was east at 40
mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
these storms.

Locations impacted include...
Austin, Round Rock, Cedar Park, Pflugerville, Buda, Elgin, Dripping
Springs, Tanglewood Forest, Austin Bergstrom Int Airport, Windemere,
Anderson Mill, Leander, Lakeway, Manor, Lago Vista, Bee Cave, West
Lake Hills, Hudson Bend, The Hills and Rollingwood.

A Severe Thunderstorm Watch remains in effect until midnight CDT for
south central Texas.

LAT...LON 3058 9791 3057 9792 3057 9790 3054 9787
      3047 9785 3043 9778 3046 9769 3048 9768
      3048 9764 3050 9760 3045 9743 3042 9737
      3011 9760 3006 9767 3011 9827 3023 9822
      3059 9794
TIME...MOT...LOC 0401Z 269DEG 34KT 3053 9791 3018 9820 

$$

RUNYEN

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 22, 8:32 PM CDT	Severe Thunderstorm Warning	EWX	Burnet, Llano	58 min
Mar 22, 9:02 PM CDT	Special Weather Statement	EWX	Blanco, Gillespie, Llano	43 min
Mar 22, 9:14 PM CDT	Severe Thunderstorm Warning	EWX	Burnet, Llano, Williamson	61 min
Mar 22, 9:16 PM CDT	Severe Thunderstorm Warning	EWX	Blanco, Burnet, Gillespie, Llano	59 min
Mar 22, 9:58 PM CDT	Severe Thunderstorm Warning	EWX	Burnet, Williamson	62 min
Mar 22, 10:05 PM CDT	Severe Thunderstorm Warning	EWX	Bandera, Blanco, Comal, Kendall, Kerr	55 min
Mar 22, 10:11 PM CDT	Severe Thunderstorm Warning	EWX	Blanco, Burnet, Gillespie, Hays, Travis	64 min
Mar 22, 10:26 PM CDT	Tornado Warning	EWX	Williamson	27 min
Mar 22, 10:34 PM CDT	Special Weather Statement	EWX	Gillespie	41 min
Mar 22, 10:56 PM CDT	Severe Thunderstorm Warning	EWX	Williamson	41 min
Mar 22, 10:57 PM CDT	Special Weather Statement	EWX	Comal, Hays, Kendall	48 min
Mar 22, 11:31 PM CDT	Severe Thunderstorm Warning	EWX	Bandera, Edwards, Medina, Real, Uvalde	59 min
Mar 22, 11:34 PM CDT	Special Weather Statement	EWX	Bandera, Kendall, Kerr	41 min
Mar 22, 11:44 PM CDT	Severe Thunderstorm Warning	EWX	Bandera, Gillespie, Kendall, Kerr, Medina	61 min
Mar 22, 11:55 PM CDT	Special Weather Statement	EWX	Bastrop	65 min
Mar 23, 12:25 AM CDT	Special Weather Statement	EWX	Lee	65 min
Mar 23, 12:25 AM CDT	Severe Thunderstorm Warning	EWX	Bandera, Medina, Uvalde	65 min
Mar 23, 12:35 AM CDT	Severe Thunderstorm Warning	EWX	Bandera, Bexar, Blanco, Comal, Hays, Kendall and 1 more	55 min
Mar 23, 1:06 AM CDT	Tornado Warning	EWX	Comal, Guadalupe, Hays	24 min
Mar 23, 1:13 AM CDT	Severe Thunderstorm Warning	EWX	Bandera, Bexar, Comal, Guadalupe, Kendall, Medina and 1 more	62 min
Mar 23, 1:19 AM CDT	Special Weather Statement	EWX	Medina	41 min
Mar 23, 1:26 AM CDT	Severe Thunderstorm Warning	EWX	Bastrop, Caldwell, Comal, Gonzales, Guadalupe, Hays and 1 more	64 min
Mar 23, 1:48 AM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Bexar, Frio, Medina	34 min
Mar 23, 1:58 AM CDT	Severe Thunderstorm Warning	EWX	Gonzales, Guadalupe	32 min
Mar 23, 2:13 AM CDT	Severe Thunderstorm Warning	EWX	Bexar, Gonzales, Guadalupe, Karnes, Wilson	26 min
Mar 23, 2:16 AM CDT	Severe Thunderstorm Warning	EWX	Bastrop, Caldwell, Fayette, Gonzales, Guadalupe, Lavaca and 1 more	59 min
Mar 23, 3:03 AM CDT	Severe Thunderstorm Warning	EWX	Fayette, Lavaca	33 min
Mar 23, 3:43 AM CDT	Special Weather Statement	EWX	DeWitt, Lavaca	47 min
Mar 23, 4:07 AM CDT	Severe Thunderstorm Warning	EWX	Lavaca	38 min

Nearby

Special Weather Statements in Texas, 2021 Every special weather statement in 2021

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.