Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS Corpus Christi, TX

September 30, 2021Webb County, Texas

NWS Corpus Christi, TX issued this special weather statement at Sep 30, 2021, 7:20 PM CDT for Webb County, Texas. It was in force for 25 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 30, 2021, 7:20 PM CDT (00:20 UTC)
Expired: Sep 30, 2021, 7:45 PM CDT
In force: 25 min
Issued by: NWS Corpus Christi, TX
Hail: 0.00 in
Wind: 40

County Webb County, TX

The radar

The Laughlin AFB radar (KDFX), 160 km from the middle of the area, began a volume at 00:23 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

Del Rio, TX (KDRT), launched 00:00Z, 0.3 hours before the alert went out and 200 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: 2844 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 1576 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 135 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 7.3

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 30, 6:55 PM CDT, 25 minutes earlier.

Area forecast discussion, Sep 30, 6:55 PM CDT, 25 minutes before

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Hazardous weather outlook, Sep 30, 4:15 AM CDT, 15 hours 5 minutes before

Hazardous Weather Outlook
National Weather Service Corpus Christi TX
415 AM CDT Thu Sep 30 2021

TXZ229>234-239>247-342>347-442-443-447-010915-
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-
415 AM CDT Thu Sep 30 2021

This hazardous weather outlook is for South Texas.

.DAY ONE...Today and Tonight

Scattered to numerous thunderstorms are expected today. Gusty
winds, small hail and locally heavy rainfall are possible.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Scattered to numerous thunderstorms are forecast through the
weekend. Heavy rain at times may lead to localized flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

GMZ230-235-250-255-270-275-010915-
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-
415 AM CDT Thu Sep 30 2021

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

.DAY ONE...Today and Tonight

Scattered to numerous thunderstorms are expected today. Gusty
winds, small hail and locally heavy rainfall are possible.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Scattered to numerous thunderstorms are forecast through Monday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

TC/MCZ

In the hours before

Local storm report, Sep 30, 5:01 PM CDT, 2 hours 19 minutes before

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Local storm report, Sep 30, 5:10 PM CDT, 2 hours 10 minutes before

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Special weather statement, Sep 30, 5:22 PM CDT, 1 hour 58 minutes before

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Special weather statement, Sep 30, 6:00 PM CDT, 1 hour 20 minutes before

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Special weather statement, Sep 30, 6:05 PM CDT, 1 hour 15 minutes before

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Special weather statement, Sep 30, 7:20 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
Sep 30, 7:09 PM CDT	River Flood Warning	CRP	Nueces	62 hr
Oct 1, 2:21 AM CDT	Special Weather Statement	CRP	Bee	24 min
Oct 1, 2:26 AM CDT	Special Weather Statement	CRP	Nueces	34 min
Oct 1, 3:07 AM CDT	Flood Watch	CRP	Jim Wells, Kleberg, Nueces, San Patricio	6 min
Oct 1, 3:17 AM CDT	Flash Flood Watch	CRP	Jim Wells, Kleberg, Nueces, San Patricio	36 hr
Oct 1, 3:27 AM CDT	Special Weather Statement	CRP	Refugio	33 min
Oct 1, 4:07 AM CDT	Special Marine Warning	CRP		38 min
Oct 1, 4:17 AM CDT	Areal Flood Advisory	CRP	Bee, Refugio, San Patricio	118 min
Oct 1, 4:27 AM CDT	Special Weather Statement	CRP	Aransas, Refugio	33 min
Oct 1, 4:41 AM CDT	Special Weather Statement	CRP	San Patricio	34 min
Oct 1, 4:56 AM CDT	Special Marine Warning	CRP		12 min
Oct 1, 5:26 AM CDT	Special Weather Statement	CRP	Nueces, San Patricio	49 min
Oct 1, 5:31 AM CDT	Special Marine Warning	CRP		59 min
Oct 1, 5:32 AM CDT	Areal Flood Advisory	CRP	Kleberg, Nueces, San Patricio	4 hr
Oct 1, 6:06 AM CDT	Special Marine Warning	CRP		24 min
Oct 1, 6:21 AM CDT	Special Weather Statement	CRP	Nueces, San Patricio	39 min
Oct 1, 6:26 AM CDT	Special Marine Warning	CRP		34 min
Oct 1, 6:31 AM CDT	Areal Flood Advisory	CRP	Aransas, Bee, Live Oak, Nueces, Refugio, San Patricio	3 hr
Oct 1, 6:42 AM CDT	Special Marine Warning	CRP		33 min
Oct 1, 6:48 AM CDT	Flash Flood Warning	CRP	Jim Wells, Nueces, San Patricio	3 hr
Oct 1, 7:15 AM CDT	Special Marine Warning	CRP		30 min
Oct 1, 8:44 AM CDT	River Flood Warning	CRP	Jim Wells, Nueces, San Patricio	13 hr
Oct 1, 8:49 AM CDT	River Flood Warning	CRP	Nueces, San Patricio	12 hr
Oct 1, 8:59 AM CDT	Special Marine Warning	CRP		46 min
Oct 1, 9:21 AM CDT	Areal Flood Advisory	CRP	Aransas, Kleberg, Nueces, San Patricio	5 hr
Oct 1, 9:46 AM CDT	Flash Flood Warning	CRP	Bee, Jim Wells, Live Oak, San Patricio	98 min
Oct 1, 10:24 AM CDT	Special Marine Warning	CRP		51 min
Oct 1, 10:38 AM CDT	Flash Flood Warning	CRP	Kleberg	3 hr

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.