Alert archive / Texas / Special Weather Statements in 2018

Special Weather Statement, NWS Austin/San Antonio, TX

February 25, 2018Caldwell County, Texas

NWS Austin/San Antonio, TX issued this special weather statement at Feb 25, 2018, 12:13 PM CST for Caldwell County, Texas. It was in force for 32 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: Feb 25, 2018, 12:13 PM CST (18:13 UTC)
Expired: Feb 25, 2018, 12:45 PM CST
In force: 32 min
Issued by: NWS Austin/San Antonio, TX

County Caldwell County, TX

The radar

The Austin/San Antonio radar (KEWX), 45 km from the middle of the area, began a volume at 18:17 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, 6.2 hours before the alert went out and 218 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: 1207 J/kg
Mixed-layer CIN: -97 J/kg
Mixed-layer LCL: 514 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 162 m²/s²
0-3 km storm-relative helicity: 53 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 4.2

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 Feb 25, 11:23 AM CST, 50 minutes earlier.

Area forecast discussion, Feb 25, 11:23 AM CST, 50 minutes before

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Hazardous weather outlook, Feb 25, 6:06 AM CST, 6 hours 7 minutes before

Hazardous Weather Outlook...UPDATED
National Weather Service Austin/San Antonio TX
606 AM CST Sun Feb 25 2018

TXZ171>173-183>194-202>209-217>225-228-261215-
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-
606 AM CST Sun Feb 25 2018

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

.DAY ONE...Today And Tonight.

Showers and isolated thunderstorms are expected early this morning
across the Winter Garden region and then expanding northeast into
portions of the Hill Country and along and east of I-35 near and
after sunrise. An isolated storm or two could produce large hail.
These showers and storms will end west to east during mid
afternoon through early evening hours.

No other 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, Feb 25, 10:21 AM CST, 1 hour 52 minutes before

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Local storm report, Feb 25, 10:24 AM CST, 1 hour 49 minutes before

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Special weather statement, Feb 25, 11:11 AM CST, 1 hour 2 minutes before

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Special weather statement, Feb 25, 11:44 AM CST, 29 minutes before

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Special weather statement, Feb 25, 11:54 AM CST, 19 minutes before

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Special weather statement, Feb 25, 12:13 PM CST, 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
Feb 24, 6:21 PM CST	Special Weather Statement	EWX	Burnet	39 min
Feb 25, 12:11 AM CST	Special Weather Statement	EWX	DeWitt	34 min
Feb 25, 12:50 AM CST	Special Weather Statement	EWX	Lavaca	40 min
Feb 25, 1:48 AM CST	Special Weather Statement	EWX	Wilson	42 min
Feb 25, 2:31 AM CST	Special Weather Statement	EWX	DeWitt	44 min
Feb 25, 3:42 AM CST	Special Weather Statement	EWX	Zavala	48 min
Feb 25, 4:30 AM CST	Severe Thunderstorm Warning	EWX	Frio, Zavala	30 min
Feb 25, 4:43 AM CST	Severe Thunderstorm Warning	EWX	Frio	47 min
Feb 25, 4:55 AM CST	Special Weather Statement	EWX	Medina	50 min
Feb 25, 5:04 AM CST	Severe Thunderstorm Warning	EWX	Atascosa, Frio	41 min
Feb 25, 5:30 AM CST	Severe Thunderstorm Warning	EWX	Bandera, Medina	45 min
Feb 25, 5:41 AM CST	Severe Thunderstorm Warning	EWX	Atascosa	49 min
Feb 25, 6:10 AM CST	Severe Thunderstorm Warning	EWX	Atascosa, Karnes, Wilson	50 min
Feb 25, 6:13 AM CST	Special Weather Statement	EWX	Bandera	47 min
Feb 25, 6:35 AM CST	Special Weather Statement	EWX	Caldwell	40 min
Feb 25, 6:43 AM CST	Severe Thunderstorm Warning	EWX	DeWitt, Gonzales, Karnes, Wilson	32 min
Feb 25, 6:55 AM CST	Special Weather Statement	EWX	Llano	50 min
Feb 25, 7:07 AM CST	Special Weather Statement	EWX	DeWitt	23 min
Feb 25, 11:11 AM CST	Special Weather Statement	EWX	Williamson	34 min
Feb 25, 11:44 AM CST	Special Weather Statement	EWX	Guadalupe	31 min
Feb 25, 11:54 AM CST	Special Weather Statement	EWX	Williamson	36 min
Feb 25, 12:49 PM CST	Special Weather Statement	EWX	Bastrop	41 min
Feb 25, 12:50 PM CST	Special Weather Statement	EWX	Karnes	40 min
Feb 25, 1:31 PM CST	Special Weather Statement	EWX	Fayette	44 min

Nearby

Special Weather Statements in Texas, 2018 Every special weather statement in 2018

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.