Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS Austin/San Antonio, TX

May 17, 2021Comal County, Texas

NWS Austin/San Antonio, TX issued this special weather statement at May 17, 2021, 3:51 PM CDT for Comal County, Texas. It was in force for 39 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: May 17, 2021, 3:51 PM CDT (20:51 UTC)
Expired: May 17, 2021, 4:30 PM CDT
In force: 39 min
Issued by: NWS Austin/San Antonio, TX

County Comal County, TX

The radar

The Austin/San Antonio radar (KEWX), 26 km from the middle of the area, began a volume at 20:54 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 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 May 17, 3:19 PM CDT, 32 minutes earlier.

Area forecast discussion, May 17, 3:19 PM CDT, 32 minutes before

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Hazardous weather outlook, May 17, 4:10 AM CDT, 11 hours 41 minutes before

Hazardous Weather Outlook
National Weather Service Austin/San Antonio TX
410 AM CDT Mon May 17 2021

TXZ171>173-183>194-202>209-217>225-228-180915-
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-
410 AM CDT Mon May 17 2021

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

.DAY ONE...Today And Tonight.

Strong to severe thunderstorms are expected to form over the Rio
Grande Plains this evening and move eastward. Large hail and
damaging winds are the primary hazards. An isolated tornado cannot
be ruled out west of a Rocksprings to Eagle Pass line this
evening. Locally heavy rainfall that could lead to flash flooding
is also possible.

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

Several rounds of showers and thunderstorms are possible this
week. Thunderstorms could be strong to severe at times. Locally
heavy rainfall and flooding are also of a concern, especially
Tuesday and Wednesday, with a flash flooding threat increasing for
areas along and east of the I-35 corridor.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report severe weather and/or flash flooding
to the National Weather Service.

In the hours before

Special weather statement, May 17, 11:58 AM CDT, 3 hours 53 minutes before

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Local storm report, May 17, 1:09 PM CDT, 2 hours 42 minutes before

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Special weather statement, May 17, 1:53 PM CDT, 1 hour 58 minutes before

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Special weather statement, May 17, 2:37 PM CDT, 1 hour 14 minutes before

Special Weather Statement
National Weather Service Austin/San Antonio TX
237 PM CDT Mon May 17 2021

TXZ191-206-172015-
Comal TX-Hays TX-
237 PM CDT Mon May 17 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN HAYS AND
NORTHEASTERN COMAL COUNTIES UNTIL 315 PM CDT...

At 236 PM CDT, Doppler radar was tracking a strong thunderstorm near
Spring Branch, or 11 miles northwest of Canyon Lake Dam, moving
northeast at 15 mph.

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

Locations impacted include...
Wimberley, Canyon Lake Dam, Canyon Lake, Spring Branch, Fischer and
Guadalupe River State Park.

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.

&&

LAT...LON 2987 9849 3001 9833 3001 9804 2987 9802
TIME...MOT...LOC 1936Z 228DEG 14KT 2993 9838

PLATT

Special weather statement, May 17, 3:16 PM CDT, 35 minutes before

Special Weather Statement
National Weather Service Austin/San Antonio TX
316 PM CDT Mon May 17 2021

TXZ207>209-223-225-172100-
Guadalupe TX-Caldwell TX-Lavaca TX-Fayette TX-Gonzales TX-
316 PM CDT Mon May 17 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN CALDWELL...EASTERN
GUADALUPE...GONZALES...FAYETTE AND NORTHWESTERN LAVACA COUNTIES UNTIL
400 PM CDT...

At 315 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Kingsbury to near Flatonia to near
Fayetteville. Movement was southwest at 20 mph.

Half inch hail and winds in excess of 40 mph will be possible with
these storms.

Locations impacted include...
Seguin, Gonzales, Luling, La Grange, Schulenburg, Shiner, Flatonia,
Moulton, Shelby, Waelder, Kingsbury, Staples, Fayetteville, Round
Top, Fentress, Palmeto State Park, Muldoon, Cistern, Brownsboro and
Carmine.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 2963 9687 2961 9684 2958 9683 2957 9679
      2936 9720 2938 9724 2936 9727 2939 9799
      2976 9782 2981 9734 2979 9731 2981 9729
      2983 9713 3015 9668 3014 9665 2996 9657
TIME...MOT...LOC 2015Z 027DEG 16KT 2965 9776 2964 9715 2994 9662

BRADY

Special weather statement, May 17, 3:51 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 17, 9:21 AM CDT	River Flood Warning	EWX	Frio	19 hr
May 17, 11:36 AM CDT	Special Weather Statement	EWX	Burnet	54 min
May 17, 11:58 AM CDT	Special Weather Statement	EWX	Burnet	47 min
May 17, 12:05 PM CDT	Severe Thunderstorm Warning	EWX	Burnet, Llano	55 min
May 17, 1:00 PM CDT	Severe Thunderstorm Warning	EWX	Blanco, Burnet, Travis, Williamson	60 min
May 17, 1:53 PM CDT	Special Weather Statement	EWX	Bastrop, Hays, Travis, Williamson	52 min
May 17, 2:34 PM CDT	Flash Flood Watch	EWX	Atascosa, Bandera, Bastrop, Bexar, Blanco, Burnet and 19 more	55 hr
May 17, 2:37 PM CDT	Special Weather Statement	EWX	Comal	38 min
May 17, 3:16 PM CDT	Special Weather Statement	EWX	Fayette, Gonzales	44 min
May 17, 3:25 PM CDT	Areal Flood Advisory	EWX	Fayette	3 hr
May 17, 3:59 PM CDT	Special Weather Statement	EWX	Gonzales, Lavaca	61 min
May 17, 4:15 PM CDT	Areal Flood Advisory	EWX	Gonzales, Lavaca	2 hr
May 17, 5:05 PM CDT	Special Weather Statement	EWX	Lavaca	40 min
May 17, 6:08 PM CDT	Special Weather Statement	EWX	Val Verde	52 min
May 17, 6:11 PM CDT	Special Weather Statement	EWX	Dimmit	49 min
May 17, 6:46 PM CDT	Special Weather Statement	EWX	Dimmit	44 min
May 17, 6:48 PM CDT	Severe Thunderstorm Warning	EWX	Val Verde	41 min
May 17, 6:50 PM CDT	Severe Thunderstorm Warning	EWX	Dimmit	25 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; radar from the NEXRAD Level II archive.