Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS Corpus Christi, TX

July 21, 2021Live Oak County, Texas

NWS Corpus Christi, TX issued this special weather statement at Jul 21, 2021, 6:52 PM CDT for Live Oak County, Texas. It was in force for 38 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: Jul 21, 2021, 6:52 PM CDT (23:52 UTC)
Expired: Jul 21, 2021, 7:30 PM CDT
In force: 38 min
Issued by: NWS Corpus Christi, TX

County Live Oak County, TX

The radar

The Corpus Christi radar (KCRP), 113 km from the middle of the area, began a volume at 23:54 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 nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 11.9 hours before the alert went out and 127 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: 2238 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 684 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 12 m²/s²
0-3 km storm-relative helicity: 58 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 Corpus Christi, TX wrote its last area forecast discussion before this special weather statement went out at Jul 21, 4:19 PM CDT, 2 hours 33 minutes earlier.

Area forecast discussion, Jul 21, 4:19 PM CDT, 2 hours 33 minutes before

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Hazardous weather outlook, Jul 21, 4:04 AM CDT, 14 hours 48 minutes before

Hazardous Weather Outlook
National Weather Service Corpus Christi TX
404 AM CDT Wed Jul 21 2021

TXZ229>234-239>247-342>347-442-443-447-220915-
La Salle-McMullen-Live Oak-Bee-Goliad-Victoria-Webb-Duval-
Jim Wells-Inland Kleberg-Inland Nueces-Inland San Patricio-
Coastal Aransas-Inland Refugio-Inland Calhoun-Coastal Kleberg-
Coastal Nueces-Coastal San Patricio-Aransas Islands-
Coastal Refugio-Coastal Calhoun-Kleberg Islands-Nueces Islands-
Calhoun Islands-
404 AM CDT Wed Jul 21 2021

This hazardous weather outlook is for South Texas.

.DAY ONE...Today and Tonight

Scattered thunderstorms are expected today.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Scattered thunderstorms are expected Thursday.

Heat Advisory conditions are possible daily beginning Friday. Heat
indices may exceed 109, especially over the inland Coastal Plains
and westward. Heat indices of 105 to 109 are possible elsewhere
daily.

GMZ230-235-250-255-270-275-220915-
Bays and Waterways from Baffin Bay to Port Aransas-
Bays and Waterways from Port Aransas to Port O'Connor-
Coastal waters from Baffin Bay to Port Aransas out 20 NM-
Coastal waters from Port Aransas to Matagorda Ship Channel out
20 NM-Waters from Baffin Bay to Port Aransas from 20 to 60 NM-
Waters from Port Aransas to Matagorda Ship Channel from 20 to
60 NM-
404 AM CDT Wed Jul 21 2021

This hazardous weather outlook is for the Middle Texas
Coastal Waters.

.DAY ONE...Today and Tonight

Scattered thunderstorms are expected.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Scattered thunderstorms are expected Thursday.

In the hours before

Special weather statement, Jul 21, 5:47 PM CDT, 1 hour 5 minutes before

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Special weather statement, Jul 21, 5:50 PM CDT, 1 hour 2 minutes before

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Special weather statement, Jul 21, 5:55 PM CDT, 57 minutes before

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Special weather statement, Jul 21, 6:09 PM CDT, 43 minutes before

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Special weather statement, Jul 21, 6:46 PM CDT, 6 minutes before

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Special weather statement, Jul 21, 6:52 PM CDT, 0 minutes before

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The office that day

Everything else NWS Corpus Christi, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 20, 7:00 PM CDT	Special Weather Statement	CRP	Jim Wells	45 min
Jul 20, 7:40 PM CDT	Special Weather Statement	CRP	Kleberg	35 min
Jul 20, 7:55 PM CDT	Special Weather Statement	CRP	Kleberg	35 min
Jul 21, 6:25 AM CDT	Areal Flood Advisory	CRP	Nueces	31 min
Jul 21, 2:07 PM CDT	Special Weather Statement	CRP	Kleberg	23 min
Jul 21, 3:25 PM CDT	Special Weather Statement	CRP	Refugio	35 min
Jul 21, 4:13 PM CDT	Special Weather Statement	CRP	Brooks	47 min
Jul 21, 5:47 PM CDT	Special Weather Statement	CRP	Jim Wells	28 min
Jul 21, 5:50 PM CDT	Special Weather Statement	CRP	San Patricio	25 min
Jul 21, 5:55 PM CDT	Special Weather Statement	CRP	Goliad	35 min
Jul 21, 6:09 PM CDT	Special Weather Statement	CRP	Goliad	36 min
Jul 21, 6:46 PM CDT	Special Weather Statement	CRP	Goliad	29 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.