Alert archive / Texas / Areal Flood Warnings in 2012

Areal Flood Warning 3, NWS Corpus Christi, TX

July 11, 2012Calhoun County, Texas

NWS Corpus Christi, TX issued this areal flood warning at Jul 11, 2012, 4:26 PM CDT for Calhoun County, Texas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 11, 2012, 4:26 PM CDT (21:26 UTC)
Expired: Jul 11, 2012, 7:15 PM CDT
In force: 3 hr
Issued by: NWS Corpus Christi, TX
Area: Storm-based polygon
Flood severity: None

County Calhoun County, TX

The radar

The Corpus Christi radar (KCRP), 114 km from the middle of the area, began a volume at 21:29 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, 9.4 hours before the alert went out and 106 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: 2040 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 702 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 11 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

What forecasters said that day

The local office's own words before this areal flood warning 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 areal flood warning went out at Jul 11, 3:26 PM CDT, 1 hour earlier.

Area forecast discussion, Jul 11, 3:26 PM CDT, 1 hour before

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Hazardous weather outlook, Jul 11, 10:29 AM CDT, 5 hours 57 minutes before

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In the hours before

Local storm report, Jul 11, 1:03 PM CDT, 3 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
Jul 11, 4:44 AM CDT	Areal Flood Advisory	CRP	Victoria	91 min
Jul 11, 8:56 AM CDT	Flash Flood Warning	CRP	Goliad, Victoria	2 hr
Jul 11, 9:59 AM CDT	Flash Flood Watch	CRP	Aransas, Calhoun, Goliad, Refugio, Victoria	29 hr
Jul 11, 10:36 AM CDT	Flash Flood Warning	CRP	Calhoun	114 min
Jul 11, 10:59 AM CDT	Flash Flood Warning	CRP	Goliad, Victoria	2 hr
Jul 11, 11:25 AM CDT	Areal Flood Advisory	CRP	Aransas, Refugio	50 min
Jul 11, 12:31 PM CDT	Flash Flood Warning	CRP	Aransas, Calhoun, Refugio	119 min
Jul 11, 1:53 PM CDT	Areal Flood Advisory	CRP	Bee	52 min
Jul 11, 2:21 PM CDT	Flash Flood Warning	CRP	Victoria	84 min
Jul 11, 2:29 PM CDT	Flash Flood Warning	CRP	Aransas, Calhoun, Refugio	2 hr

Nearby

Areal Flood Warnings in Texas, 2012 Every areal flood warning in 2012

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.