Alert archive / Texas / Flash Flood Warnings in 2022

Flash Flood Warning 14, NWS San Angelo, TX

September 1, 2022Coleman County, Texas

NWS San Angelo, TX issued this flash flood warning at Sep 1, 2022, 9:28 AM CDT for Coleman 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: Sep 1, 2022, 9:28 AM CDT (14:28 UTC)
Expired: Sep 1, 2022, 11:30 AM CDT
In force: 2 hr
Issued by: NWS San Angelo, TX
Area: Storm-based polygon
Damage threat: Considerable
Flood severity: None

County Coleman County, TX

The radar

The Dyess AFB radar (KDYX), 87 km from the middle of the area, began a volume at 14:28 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

Midland Regional, TX (KMAF), launched 12:00Z, 2.5 hours before the alert went out and 260 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: 116 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 821 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 71 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 San Angelo, TX wrote its last area forecast discussion before this flash flood warning went out at Sep 1, 5:50 AM CDT, 3 hours 38 minutes earlier.

Area forecast discussion, Sep 1, 5:50 AM CDT, 3 hours 38 minutes before

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Hazardous weather outlook, Sep 1, 4:43 AM CDT, 4 hours 45 minutes before

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The office that day

Everything else NWS San Angelo, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 31, 9:41 PM CDT	Areal Flood Advisory	SJT	McCulloch, Mason, San Saba	3 hr
Sep 1, 8:56 AM CDT	Areal Flood Advisory	SJT	Callahan, Coleman, Runnels, Taylor	3 hr
Sep 1, 10:40 AM CDT	Areal Flood Advisory	SJT	Runnels	3 hr
Sep 1, 4:58 PM CDT	Areal Flood Advisory	SJT	Irion	2 hr

Nearby

Flash Flood Warnings in Texas, 2022 Every flash flood warning in 2022

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.