Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS Corpus Christi, TX

September 21, 2021Aransas County, Texas

NWS Corpus Christi, TX issued this special weather statement at Sep 21, 2021, 10:55 PM CDT for Aransas 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: Sep 21, 2021, 10:55 PM CDT (03:55 UTC)
Expired: Sep 21, 2021, 11:45 PM CDT
In force: 50 min
Issued by: NWS Corpus Christi, TX
Hail: 0.00 in
Wind: 50

County Aransas County, TX

The radar

The Corpus Christi radar (KCRP), 76 km from the middle of the area, began a volume at 03:55 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 00:00Z, 3.9 hours before the alert went out and 70 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: 3518 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 1023 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 12 m²/s²
0-3 km storm-relative helicity: 37 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 Sep 21, 6:28 PM CDT, 4 hours 27 minutes earlier.

Area forecast discussion, Sep 21, 6:28 PM CDT, 4 hours 27 minutes before

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Hazardous weather outlook, Sep 21, 4:54 AM CDT, 18 hours 1 minute before

Hazardous Weather Outlook
National Weather Service Corpus Christi TX
454 AM CDT Tue Sep 21 2021

TXZ229>234-239>247-342>347-442-443-447-221000-
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-
454 AM CDT Tue Sep 21 2021

This hazardous weather outlook is for South Texas.

.DAY ONE...Today and Tonight

Maximum Heat Index values 105 to 109 degrees today. At some
locations, maximum Heat Index values may reach 110 degrees for
less than 2 hours.

Isolated thunderstorms today and scattered to numerous tonight.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Elevated fire weather conditions may occur Wednesday afternoon over
interior portions of the Coastal Plains, the Brush Country, and over
the Rio Grande Plains.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

GMZ230-235-250-255-270-275-221000-
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-
454 AM CDT Tue Sep 21 2021

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

.DAY ONE...Today and Tonight

Isolated thunderstorms today and scattered to numerous tonight.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Scattered to numerous thunderstorms are expected through
Wednesday morning.

Small Craft Advisory conditions will be possible Wednesday behind
the frontal passage.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

87/88

In the hours before

Special weather statement, Sep 21, 5:23 PM CDT, 5 hours 32 minutes before

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Special weather statement, Sep 21, 5:35 PM CDT, 5 hours 20 minutes before

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Special weather statement, Sep 21, 5:56 PM CDT, 4 hours 59 minutes before

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Special weather statement, Sep 21, 6:09 PM CDT, 4 hours 46 minutes before

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Special weather statement, Sep 21, 6:32 PM CDT, 4 hours 23 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
Sep 21, 9:40 PM CDT	Special Weather Statement	CRP	Goliad	35 min
Sep 21, 10:09 PM CDT	Special Weather Statement	CRP	Bee, Goliad	36 min
Sep 21, 11:40 PM CDT	Special Weather Statement	CRP	Nueces	50 min
Sep 22, 1:35 AM CDT	Special Weather Statement	CRP	Duval	40 min
Sep 22, 2:16 AM CDT	Special Weather Statement	CRP	Webb	44 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.