Alert archive / Texas / Special Weather Statements in 2022

Special Weather Statement, NWS Austin/San Antonio, TX

March 21, 2022Williamson County, Texas

NWS Austin/San Antonio, TX issued this special weather statement at Mar 21, 2022, 9:28 PM CDT for Williamson County, Texas. It was in force for 47 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: Mar 21, 2022, 9:28 PM CDT (02:28 UTC)
Expired: Mar 21, 2022, 10:15 PM CDT
In force: 47 min
Issued by: NWS Austin/San Antonio, TX
Hail: 0.50 in
Wind: 40

County Williamson County, TX

The radar

The Ft Hood radar (KGRK), 9 km from the middle of the area, began a volume at 02:29 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

Corpus Christi, TX (KCRP), launched 00:00Z, 2.5 hours before the alert went out and 324 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: 1720 J/kg
Mixed-layer CIN: -300 J/kg
Mixed-layer LCL: 853 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 252 m²/s²
0-3 km storm-relative helicity: 206 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 Austin/San Antonio, TX wrote its last area forecast discussion before this special weather statement went out at Mar 21, 8:43 PM CDT, 45 minutes earlier.

Area forecast discussion, Mar 21, 8:43 PM CDT, 45 minutes before

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Hazardous weather outlook, Mar 21, 3:12 AM CDT, 18 hours 16 minutes before

Hazardous Weather Outlook
National Weather Service Austin/San Antonio TX
312 AM CDT Mon Mar 21 2022

TXZ171>173-183>194-202>209-217>225-228-221000-
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-
312 AM CDT Mon Mar 21 2022

This Hazardous Weather Outlook is for South-Central Texas..

.DAY ONE...Today And Tonight.

Severe thunderstorms with primary threats of large hail and
tornadoes are possibly this afternoon into early evening. A Red
Flag Warning is in effect for the Edwards Plateau and Rio Grande
Plains this afternoon. A Wind Advisory is in effect this
afternoon for Val Verde and Edwards Counties.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Elevated to critical fire weather conditions are expected to
continue through Saturday, mainly during the afternoon and
evening hours. A Fire Weather Watch is in effect for Tuesday
afternoon for the Edwards Plateau and Rio Grande Plains. Red Flag
Warnings for critical fire weather conditions may be needed on
additional days. Take care to prevent the start of wildfires.

.SPOTTER INFORMATION STATEMENT...

Please report any severe weather to the NWS.

In the hours before

Special weather statement, Mar 21, 8:21 PM CDT, 1 hour 7 minutes before

Special Weather Statement
National Weather Service Austin/San Antonio TX
821 PM CDT Mon Mar 21 2022

TXZ191-192-206-220145-
Comal TX-Hays TX-Travis TX-
821 PM CDT Mon Mar 21 2022

...Strong thunderstorms will impact portions of Hays, central Travis
and Comal Counties through 845 PM CDT...

At 821 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from Mansfield Dam to near Bulverde. Movement was
east at 10 mph.

HAZARD...Wind gusts up to 50 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Austin, New Braunfels, Kyle, Buda, Dripping Springs, Wimberley,
Tanglewood Forest, Canyon Lake Dam, Canyon Lake, Lakeway, Manor, Bee
Cave, Bulverde, West Lake Hills, The Hills, Woodcreek, Rollingwood,
Bear Creek, Smithson Valley and Barton Creek.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

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

A Tornado Watch remains in effect until 1000 PM CDT for south central
Texas.

&&

LAT...LON 3039 9752 2974 9816 2970 9830 2971 9834
      2973 9835 2973 9837 2974 9840 2975 9841
      2974 9842 2979 9854 2996 9839 3004 9830
      3008 9828 3034 9805
TIME...MOT...LOC 0121Z 286DEG 9KT 3040 9788 2982 9844

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH

BRADY

Special weather statement, Mar 21, 8:51 PM CDT, 37 minutes before

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Local storm report, Mar 21, 8:59 PM CDT, 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
859 PM CDT MON MAR 21 2022

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

0858 PM     HAIL             BEE CAVE                30.31N 97.96W
03/21/2022  E1.00 INCH       TRAVIS             TX   PUBLIC

            PUBLIC REPORT OF QUARTER SIZE HAIL NEAR BEE
            CAVE.

&&

AQ

Local storm report, Mar 21, 9:07 PM CDT, 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
907 PM CDT MON MAR 21 2022

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

0907 PM     HAIL             2 ENE MANSFIELD DAM     30.41N 97.88W
03/21/2022  E0.50 INCH       TRAVIS             TX   PUBLIC

            MPING REPORT OF HALF INCH HAIL NEAR
            MANSFIELD DAM.

&&

AQ

Local storm report, Mar 21, 9:12 PM CDT, 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
912 PM CDT MON MAR 21 2022

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

0910 PM     HAIL             3 ESE GEORGETOWN        30.63N 97.64W
03/21/2022  E0.75 INCH       WILLIAMSON         TX   PUBLIC

            MPING REPORT OF PENNY SIZED HAIL NEAR
            GEORGETOWN.

&&

AQ

Special weather statement, Mar 21, 9:28 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Austin/San Antonio TX
928 PM CDT Mon Mar 21 2022

TXZ173-192-220315-
Williamson TX-Travis TX-
928 PM CDT Mon Mar 21 2022

...Strong thunderstorms will impact portions of eastern Williamson
and northeastern Travis Counties through 1015 PM CDT...

At 928 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Bartlett to Round Rock. Movement was
northeast at 40 mph.

HAZARD...Winds in excess of 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Austin, Round Rock, Georgetown, Pflugerville, Taylor, Granger,
Windemere, Anderson Mill, Hutto, Bartlett, Thrall, Weir, Granger Dam,
Coupland, Laneport, Wells Branch, Waterloo, Jonah, Sandoval and Rices
Crossing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Tornado Watch remains in effect until 100 AM CDT for south central
Texas.

&&

LAT...LON 3074 9727 3073 9727 3064 9723 3041 9738
      3041 9785 3081 9745
TIME...MOT...LOC 0228Z 233DEG 33KT 3077 9736 3051 9768

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

BRADY

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 21, 7:09 PM CDT	Special Weather Statement	EWX	Caldwell	51 min
Mar 21, 7:10 PM CDT	Severe Thunderstorm Warning	EWX	Bastrop, Caldwell, Gonzales, Guadalupe	38 min
Mar 21, 7:14 PM CDT	Special Weather Statement	EWX	Williamson	46 min
Mar 21, 7:15 PM CDT	Tornado Warning Tornado observed	EWX	Lee	15 min
Mar 21, 7:20 PM CDT	Special Weather Statement	EWX	Bastrop	40 min
Mar 21, 7:36 PM CDT	Tornado Warning	EWX	Lee	25 min
Mar 21, 7:55 PM CDT	Special Weather Statement	EWX	Williamson	50 min
Mar 21, 8:00 PM CDT	Special Weather Statement	EWX	Bastrop	45 min
Mar 21, 8:21 PM CDT	Special Weather Statement	EWX	Comal, Hays, Travis	24 min
Mar 21, 8:37 PM CDT	Severe Thunderstorm Warning	EWX	Williamson	23 min
Mar 21, 8:44 PM CDT	Severe Thunderstorm Warning	EWX	Travis, Williamson	46 min
Mar 21, 8:49 PM CDT	Severe Thunderstorm Warning	EWX	Hays, Travis	21 min
Mar 21, 8:51 PM CDT	Special Weather Statement	EWX	Comal, Hays	39 min
Mar 21, 9:02 PM CDT	Severe Thunderstorm Warning	EWX	Williamson	28 min
Mar 21, 11:29 PM CDT	Special Weather Statement	EWX	Bastrop, Travis	61 min
Mar 21, 11:39 PM CDT	Special Weather Statement	EWX	Atascosa, Caldwell, Comal, Guadalupe, Wilson	66 min
Mar 21, 11:45 PM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Bexar	60 min
Mar 21, 11:55 PM CDT	Severe Thunderstorm Warning	EWX	Bexar, Guadalupe	65 min
Mar 21, 11:58 PM CDT	Severe Thunderstorm Warning	EWX	Bastrop, Caldwell, Gonzales, Guadalupe	62 min
Mar 22, 12:09 AM CDT	Areal Flood Advisory	EWX	Atascosa, Bastrop, Bexar, Caldwell, Comal, Frio and 7 more	3 hr
Mar 22, 12:11 AM CDT	Severe Thunderstorm Warning	EWX	Bastrop, Caldwell, Lee, Williamson	64 min
Mar 22, 12:45 AM CDT	Flash Flood Warning Considerable damage threat	EWX	Bastrop, Caldwell, Guadalupe, Hays, Lee, Travis and 1 more	3 hr
Mar 22, 1:06 AM CDT	Special Weather Statement	EWX	Caldwell, Gonzales, Guadalupe, Wilson	54 min
Mar 22, 1:55 AM CDT	Special Weather Statement	EWX	Fayette, Lee	50 min
Mar 22, 2:24 AM CDT	Red Flag Warning	EWX	Dimmit, Edwards, Frio, Kinney, Maverick, Real and 3 more	17 hr
Mar 22, 3:33 AM CDT	Special Weather Statement	EWX	DeWitt	42 min
Mar 22, 4:12 AM CDT	Special Weather Statement	EWX	DeWitt, Lavaca	48 min
Mar 22, 4:33 AM CDT	Special Weather Statement	EWX	DeWitt, Lavaca	27 min

Nearby

Special Weather Statements in Texas, 2022 Every special weather statement in 2022

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.