Alert archive / Texas / Special Weather Statements in 2018

Special Weather Statement, NWS Austin/San Antonio, TX

March 28, 2018Caldwell County, Texas

NWS Austin/San Antonio, TX issued this special weather statement at Mar 28, 2018, 11:40 AM CDT for Caldwell 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: Mar 28, 2018, 11:40 AM CDT (16:40 UTC)
Expired: Mar 28, 2018, 12:30 PM CDT
In force: 50 min
Issued by: NWS Austin/San Antonio, TX

County Caldwell County, TX

The radar

The Austin/San Antonio radar (KEWX), 78 km from the middle of the area, began a volume at 16:39 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, 4.7 hours before the alert went out and 221 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: 996 J/kg
Mixed-layer CIN: -96 J/kg
Mixed-layer LCL: 599 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 180 m²/s²
0-3 km storm-relative helicity: 296 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 11.8

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 28, 6:38 AM CDT, 5 hours 2 minutes earlier.

Area forecast discussion, Mar 28, 6:38 AM CDT, 5 hours 2 minutes before

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Hazardous weather outlook, Mar 28, 3:33 AM CDT, 8 hours 7 minutes before

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In the hours before

Special weather statement, Mar 28, 10:16 AM CDT, 1 hour 24 minutes before

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Local storm report, Mar 28, 10:27 AM CDT, 1 hour 13 minutes before

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Local storm report, Mar 28, 10:46 AM CDT, 54 minutes before

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Special weather statement, Mar 28, 10:57 AM CDT, 43 minutes before

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Local storm report, Mar 28, 11:18 AM CDT, 22 minutes before

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Special weather statement, Mar 28, 11:40 AM 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
Mar 27, 7:56 PM CDT	Flash Flood Watch	EWX	Bastrop, Bexar, Blanco, Burnet, Caldwell, Comal and 10 more	23 hr
Mar 27, 10:13 PM CDT	Special Weather Statement	EWX	Dimmit	47 min
Mar 27, 10:30 PM CDT	Special Weather Statement	EWX	Medina	45 min
Mar 27, 11:15 PM CDT	Special Weather Statement	EWX	Medina	30 min
Mar 27, 11:17 PM CDT	Special Weather Statement	EWX	Medina	43 min
Mar 27, 11:46 PM CDT	Severe Thunderstorm Warning	EWX	Dimmit, Maverick	59 min
Mar 27, 11:52 PM CDT	Severe Thunderstorm Warning	EWX	Frio	53 min
Mar 27, 11:55 PM CDT	Areal Flood Advisory	EWX	Medina, Uvalde	3 hr
Mar 27, 11:56 PM CDT	Special Weather Statement	EWX	Bandera	64 min
Mar 28, 12:08 AM CDT	Special Weather Statement	EWX	Val Verde	52 min
Mar 28, 12:21 AM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Bexar, Medina	39 min
Mar 28, 12:34 AM CDT	Severe Thunderstorm Warning	EWX	Dimmit	41 min
Mar 28, 12:44 AM CDT	Special Weather Statement	EWX	Gillespie	46 min
Mar 28, 1:05 AM CDT	Special Weather Statement	EWX	Llano	40 min
Mar 28, 1:26 AM CDT	Special Weather Statement	EWX	Maverick	49 min
Mar 28, 1:36 AM CDT	Areal Flood Advisory	EWX	Bexar, Medina	3 hr
Mar 28, 2:02 AM CDT	Special Weather Statement	EWX	Comal	28 min
Mar 28, 2:25 AM CDT	Areal Flood Advisory	EWX	Blanco, Comal, Hays, Kendall	3 hr
Mar 28, 2:38 AM CDT	Special Weather Statement	EWX	Dimmit	37 min
Mar 28, 2:40 AM CDT	Flash Flood Warning	EWX	Bexar, Medina	6 hr
Mar 28, 3:12 AM CDT	Areal Flood Advisory	EWX	Comal, Hays, Travis	3 hr
Mar 28, 3:56 AM CDT	Flash Flood Warning	EWX	Comal, Hays, Travis, Williamson	6 hr
Mar 28, 4:12 AM CDT	Areal Flood Advisory	EWX	Bexar, Guadalupe, Wilson	3 hr
Mar 28, 4:51 AM CDT	Tornado Warning	EWX	Caldwell	24 min
Mar 28, 7:34 AM CDT	River Flood Warning	EWX	Travis	15 hr
Mar 28, 7:57 AM CDT	Special Weather Statement	EWX	Uvalde	48 min
Mar 28, 8:09 AM CDT	Severe Thunderstorm Warning	EWX	Medina, Uvalde, Zavala	51 min
Mar 28, 8:33 AM CDT	Severe Thunderstorm Warning	EWX	Medina	42 min
Mar 28, 8:48 AM CDT	Flash Flood Warning	EWX	Medina	3 hr
Mar 28, 9:16 AM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Bexar, Medina	59 min
Mar 28, 9:55 AM CDT	Flash Flood Warning	EWX	Bexar, Comal, Guadalupe	5 hr
Mar 28, 10:16 AM CDT	Special Weather Statement	EWX	Bexar	44 min
Mar 28, 10:39 AM CDT	Flash Flood Warning	EWX	Bastrop, Caldwell, Comal, Guadalupe, Hays, Travis and 1 more	3 hr
Mar 28, 10:57 AM CDT	Special Weather Statement	EWX	Guadalupe	48 min
Mar 28, 10:59 AM CDT	River Flood Warning	EWX	Bexar	7 hr
Mar 28, 2:17 PM CDT	River Flood Warning	EWX	Bexar, Wilson	34 hr
Mar 28, 2:42 PM CDT	River Flood Warning	EWX	Bexar	18 hr

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.