Alert archive / Texas / Flash Flood Warnings in 2026

Flash Flood Warning 28, NWS Corpus Christi, TX

June 20, 2026Duval County, Texas

NWS Corpus Christi, TX issued this flash flood warning at Jun 20, 2026, 6:21 AM CDT for Duval County, Texas. It was in force for 114 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 20, 2026, 6:21 AM CDT (11:21 UTC)
Expired: Jun 20, 2026, 8:15 AM CDT
In force: 114 min
Issued by: NWS Corpus Christi, TX
Area: Storm-based polygon
Flood severity: None

County Duval County, TX

The radar

The Corpus Christi radar (KCRP), 99 km from the middle of the area, began a volume at 11:21 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, 11.4 hours before the alert went out and 115 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: 3452 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 787 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: 19 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 flash 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 flash flood warning went out at Jun 20, 1:23 AM CDT, 4 hours 58 minutes earlier.

Area forecast discussion, Jun 20, 1:23 AM CDT, 4 hours 58 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
Jun 19, 7:39 PM CDT	Special Weather Statement	CRP	Webb	51 min
Jun 19, 8:11 PM CDT	Areal Flood Advisory	CRP	Webb	2 hr
Jun 19, 8:30 PM CDT	Special Weather Statement	CRP	Webb	60 min
Jun 19, 8:54 PM CDT	Areal Flood Advisory	CRP	Webb	34 min
Jun 19, 9:10 PM CDT	Flash Flood Warning	CRP	Webb	3 hr
Jun 19, 9:23 PM CDT	Special Weather Statement	CRP	Webb	67 min
Jun 19, 9:28 PM CDT	Flash Flood Warning	CRP	Webb	92 min
Jun 19, 9:32 PM CDT	Areal Flood Advisory	CRP	Webb	118 min
Jun 19, 10:07 PM CDT	Special Weather Statement	CRP	Duval	53 min
Jun 19, 11:07 PM CDT	Areal Flood Advisory	CRP	Duval, Webb	113 min
Jun 19, 11:33 PM CDT	Flash Flood Warning	CRP	Webb	117 min
Jun 20, 3:52 AM CDT	Areal Flood Advisory	CRP	Aransas	53 min
Jun 20, 5:41 AM CDT	Areal Flood Advisory	CRP	Nueces	2 hr
Jun 20, 5:49 AM CDT	Areal Flood Advisory	CRP	Victoria	116 min
Jun 20, 5:59 AM CDT	Areal Flood Advisory	CRP	Duval	2 hr
Jun 20, 6:01 AM CDT	Areal Flood Advisory	CRP	Bee, Goliad	119 min
Jun 20, 6:42 AM CDT	Areal Flood Advisory	CRP	San Patricio	2 hr
Jun 20, 7:26 AM CDT	Areal Flood Advisory	CRP	Duval	22 min
Jun 20, 7:40 AM CDT	Areal Flood Advisory	CRP	Victoria	94 min
Jun 20, 7:48 AM CDT	Flash Flood Warning	CRP	Duval	87 min
Jun 20, 8:09 AM CDT	Areal Flood Advisory	CRP	Duval, Jim Wells, Live Oak, McMullen	89 min
Jun 20, 9:12 AM CDT	Areal Flood Advisory	CRP	Bee, San Patricio	2 hr
Jun 20, 9:51 AM CDT	Flash Flood Warning	CRP	Bee, San Patricio	106 min
Jun 20, 9:56 AM CDT	Areal Flood Advisory	CRP	Bee, Refugio, San Patricio	10 min
Jun 20, 10:06 AM CDT	Flash Flood Warning	CRP	Bee, Refugio, San Patricio	101 min
Jun 20, 11:00 AM CDT	Areal Flood Advisory	CRP	Bee, Goliad, Refugio, San Patricio	80 min

Nearby

Flash Flood Warnings in Texas, 2026 Every flash flood warning in 2026

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.