Alert archive / Texas / Areal Flood Warnings in 2015

Areal Flood Warning 8, NWS Austin/San Antonio, TX

October 9, 2015Uvalde County, Zavala County, Texas

NWS Austin/San Antonio, TX issued this areal flood warning at Oct 9, 2015, 8:15 AM CDT for Uvalde County, Zavala County, Texas. It was in force for 2 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: Oct 9, 2015, 8:15 AM CDT (13:15 UTC)
Expired: Oct 9, 2015, 10:15 AM CDT
In force: 2 hr
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Flood severity: None

Counties Uvalde County, TX, Zavala County, TX

The radar

The Laughlin AFB radar (KDFX), 53 km from the middle of the area, began a volume at 13:16 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, 1.3 hours before the alert went out and 282 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: 984 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 871 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 31 m²/s²
0-3 km storm-relative helicity: -2 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

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 Austin/San Antonio, TX wrote its last area forecast discussion before this areal flood warning went out at Oct 9, 6:50 AM CDT, 1 hour 25 minutes earlier.

Area forecast discussion, Oct 9, 6:50 AM CDT, 1 hour 25 minutes before

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Hazardous weather outlook, Oct 9, 5:13 AM CDT, 3 hours 2 minutes before

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In the hours before

Local storm report, Oct 9, 7:43 AM CDT, 32 minutes before

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Local storm report, Oct 9, 7:46 AM CDT, 29 minutes before

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Local storm report, Oct 9, 7:52 AM CDT, 23 minutes before

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The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 8, 7:19 PM CDT	Areal Flood Advisory	EWX	Kinney, Maverick, Val Verde	3 hr
Oct 8, 7:47 PM CDT	Special Weather Statement	EWX	Kinney	58 min
Oct 8, 8:58 PM CDT	Areal Flood Advisory	EWX	Maverick	107 min
Oct 8, 9:19 PM CDT	Areal Flood Advisory	EWX	Kinney, Maverick	116 min
Oct 8, 10:01 PM CDT	Flash Flood Warning	EWX	Kinney, Maverick	3 hr
Oct 8, 10:45 PM CDT	Special Weather Statement	EWX	Uvalde	45 min
Oct 8, 11:32 PM CDT	Areal Flood Advisory	EWX	Kinney, Maverick, Uvalde, Zavala	118 min
Oct 9, 12:49 AM CDT	Flash Flood Warning	EWX	Kinney, Maverick, Uvalde, Zavala	3 hr
Oct 9, 2:38 AM CDT	Areal Flood Advisory	EWX	Kinney, Val Verde	112 min
Oct 9, 3:16 AM CDT	Flash Flood Warning	EWX	Kinney, Maverick, Uvalde, Zavala	3 hr
Oct 9, 3:21 AM CDT	River Flood Warning	EWX	Uvalde	27 hr
Oct 9, 6:15 AM CDT	Flash Flood Warning	EWX	Uvalde, Zavala	2 hr
Oct 9, 7:36 AM CDT	Areal Flood Advisory	EWX	Dimmit, Frio, Medina, Zavala	3 hr

Nearby

Areal Flood Warnings in Texas, 2015 Every areal flood warning in 2015

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.