Alert archive / Texas / Special Weather Statements in 2017

Special Weather Statement, NWS Corpus Christi, TX

August 7, 2017Nueces County, Texas

NWS Corpus Christi, TX issued this special weather statement at Aug 7, 2017, 3:26 PM CDT for Nueces County, Texas. It was in force for 49 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
Aug 7, 2017, 3:26 PM CDT (20:26 UTC)
Expired
Aug 7, 2017, 4:15 PM CDT
In force
49 min
Issued by
NWS Corpus Christi, TX

County Nueces County, TX

The radar

The Corpus Christi radar (KCRP), 10 km from the middle of the area, began a volume at 20:28 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, 8.4 hours before the alert went out and 28 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-pSkew-T log-p diagram, Corpus Christi, TX at 12:00Z on 2017-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2870 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Corpus Christi, TX at 12:00Z on 2017-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
2870 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
647 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
92 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 Aug 7, 12:41 PM CDT, 2 hours 45 minutes earlier.

Area forecast discussion, Aug 7, 12:41 PM CDT, 2 hours 45 minutes before
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Hazardous weather outlook, Aug 7, 5:32 AM CDT, 9 hours 54 minutes before
Hazardous Weather Outlook
National Weather Service Corpus Christi TX
532 AM CDT Mon Aug 7 2017

GMZ230-235-250-255-270-275-TXZ229>234-239>247-081045-
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-La Salle-McMullen-Live Oak-Bee-Goliad-Victoria-Webb-Duval-
Jim Wells-Kleberg-Nueces-San Patricio-Aransas-Refugio-Calhoun-
532 AM CDT Mon Aug 7 2017

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

.DAY ONE...Today and Tonight

Isolated to scattered thunderstorms expected Today and Tonight.

Heat Advisory valid Today from Noon to 6 PM CDT for the counties
of Jim Wells, Kleberg, Nueces, San Patricio, Refugio, Bee, Live
Oak, and Goliad.

A Small Craft Advisory remains in effect for the southern Coastal
Waters until 9 AM CDT this morning.

There is a moderate risk for rip currents Today along Gulf facing
beaches.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Isolated to scattered showers and thunderstorms will be possible
across South Texas through Friday.  Severe thunderstorms are not
expected at this time.

Afternoon heat index values will be between 105 and 109 degrees this
week across much of the area. Heat advisories may also be needed
over parts of the region as the heat index climbs to or slightly
above 110 degrees.

A moderate risk for dangerous rip currents will exist along Gulf
facing beaches on Tuesday. Increasing swells from Tropical Storm
Franklin may result in a greater rip current risk and the
possibility of minor tidal overflow by Thursday.

Small craft advisories will also likely be needed by Thursday as
seas increase across the Middle Texas Coastal Waters.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

87/78

In the hours before

Special weather statement, Aug 7, 10:01 AM CDT, 5 hours 25 minutes before
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Local storm report, Aug 7, 1:46 PM CDT, 1 hour 40 minutes before
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Special weather statement, Aug 7, 3:26 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.

IssuedProductOfficeCountiesLasted
Aug 7, 3:52 AM CDTHeat AdvisoryCRPBee, Goliad, Jim Wells, Kleberg, Live Oak, Nueces and 2 more11 hr
Aug 7, 10:01 AM CDTSpecial Weather StatementCRPLa Salle44 min
Aug 7, 11:00 AM CDTAreal Flood AdvisoryCRPLa Salle3 hr
Aug 7, 3:47 PM CDTAreal Flood AdvisoryCRPNueces, San Patricio118 min
Aug 7, 4:56 PM CDTSpecial Weather StatementCRPBrooks49 min

Nearby

Special Weather Statements in Texas, 2017Every special weather statement in 2017

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.