Alert archive / Texas / Special Weather Statements in 2020

Special Weather Statement, NWS Austin/San Antonio, TX

August 2, 2020Comal County, Texas

NWS Austin/San Antonio, TX issued this special weather statement at Aug 2, 2020, 3:10 PM CDT for Comal County, Texas. It was in force for 50 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: Aug 2, 2020, 3:10 PM CDT (20:10 UTC)
Expired: Aug 2, 2020, 4:00 PM CDT
In force: 50 min
Issued by: NWS Austin/San Antonio, TX

County Comal County, TX

The radar

The Austin/San Antonio radar (KEWX), 31 km from the middle of the area, began a volume at 20:14 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 12:00Z, 8.2 hours before the alert went out and 249 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: 1512 J/kg
Mixed-layer CIN: -55 J/kg
Mixed-layer LCL: 841 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: -30 m²/s²
0-3 km storm-relative helicity: -43 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 Aug 2, 2:16 PM CDT, 54 minutes earlier.

Area forecast discussion, Aug 2, 2:16 PM CDT, 54 minutes before

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Hazardous weather outlook, Aug 2, 3:48 AM CDT, 11 hours 22 minutes before

Hazardous Weather Outlook
National Weather Service Austin/San Antonio TX
348 AM CDT Sun Aug 2 2020

TXZ171>173-183>194-202>209-217>225-228-030900-
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-
348 AM CDT Sun Aug 2 2020

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

.DAY ONE...Today And Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

In the hours before

Local storm report, Aug 2, 2:04 PM CDT, 1 hour 6 minutes before

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Special weather statement, Aug 2, 2:18 PM CDT, 52 minutes before

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Local storm report, Aug 2, 2:21 PM CDT, 49 minutes before

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Special weather statement, Aug 2, 2:25 PM CDT, 45 minutes before

Special Weather Statement
National Weather Service Austin/San Antonio TX
225 PM CDT Sun Aug 2 2020

TXZ206>208-223-022000-
Guadalupe TX-Comal TX-Caldwell TX-Gonzales TX-
225 PM CDT Sun Aug 2 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN CALDWELL...
GUADALUPE...CENTRAL GONZALES AND EAST CENTRAL COMAL COUNTIES UNTIL
300 PM CDT...

At 224 PM CDT, Doppler radar was tracking an outflow boundary
produced by strong thunderstorms along a line extending from 6 miles
south of Lockhart to Fentress to near Staples to near Zorn to 6
miles north of New Braunfels. Movement was southeast at 35 mph.

Winds in excess of 40 mph will be possible with these storms.

LAT...LON 2941 9729 2938 9784 2938 9796 2941 9802
      2989 9820 2979 9801 2976 9800 2980 9777
      2989 9761
TIME...MOT...LOC 1925Z 337DEG 29KT 2979 9765 2974 9775 2971 9786 2972
9795 2980 9810

KCW

Special weather statement, Aug 2, 2:46 PM CDT, 24 minutes before

Special Weather Statement
National Weather Service Austin/San Antonio TX
246 PM CDT Sun Aug 2 2020

TXZ202-217-022015-
Maverick TX-Kinney TX-
246 PM CDT Sun Aug 2 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN KINNEY AND
NORTHEASTERN MAVERICK COUNTIES UNTIL 315 PM CDT...

At 246 PM CDT, Doppler radar was tracking a strong thunderstorm near
Anacacho, or 11 miles east of Brackettville, moving south at 15 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Anacacho.

LAT...LON 2932 10032 2935 10014 2923 10011 2906 10011
      2904 10035
TIME...MOT...LOC 1946Z 353DEG 12KT 2927 10023

KCW

Special weather statement, Aug 2, 3:10 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Austin/San Antonio TX
310 PM CDT Sun Aug 2 2020

TXZ206-022100-
Comal TX-
310 PM CDT Sun Aug 2 2020

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL COMAL COUNTY UNTIL 400 PM
CDT...

At 310 PM CDT, Doppler radar was tracking a strong thunderstorm near
Canyon Lake, or near Canyon Lake Dam, moving south at 15 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
New Braunfels, Canyon Lake Dam, Canyon Lake, Bulverde, Spring Branch,
Smithson Valley and Startzville.

LAT...LON 2997 9820 2997 9819 2968 9816 2968 9838
      2971 9838 2971 9834 2972 9834 2973 9835
      2972 9838 2973 9838 2975 9841 2972 9844
      2994 9840 2998 9836
TIME...MOT...LOC 2010Z 002DEG 13KT 2991 9830

BF

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 2, 12:32 PM CDT	Special Weather Statement	EWX	Travis	43 min
Aug 2, 12:47 PM CDT	Special Weather Statement	EWX	Travis	43 min
Aug 2, 1:16 PM CDT	Special Weather Statement	EWX	Travis	44 min
Aug 2, 1:29 PM CDT	Special Weather Statement	EWX	Hays	46 min
Aug 2, 1:47 PM CDT	Special Weather Statement	EWX	Caldwell	43 min
Aug 2, 1:51 PM CDT	Severe Thunderstorm Warning	EWX	Caldwell, Guadalupe, Hays	35 min
Aug 2, 2:18 PM CDT	Special Weather Statement	EWX	Hays	42 min
Aug 2, 2:25 PM CDT	Special Weather Statement	EWX	Caldwell, Gonzales, Guadalupe	35 min
Aug 2, 2:46 PM CDT	Special Weather Statement	EWX	Kinney	29 min
Aug 2, 3:23 PM CDT	Special Weather Statement	EWX	Guadalupe	52 min
Aug 2, 3:50 PM CDT	Special Weather Statement	EWX	Fayette	40 min
Aug 2, 4:24 PM CDT	Special Weather Statement	EWX	Karnes	51 min
Aug 2, 4:25 PM CDT	Special Weather Statement	EWX	Lee	50 min
Aug 2, 4:40 PM CDT	Special Weather Statement	EWX	Bexar	50 min
Aug 2, 5:10 PM CDT	Special Weather Statement	EWX	Fayette	35 min
Aug 2, 5:39 PM CDT	Special Weather Statement	EWX	Fayette	51 min

Nearby

Special Weather Statements in Texas, 2020 Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.