Alert archive / Texas / Flash Flood Watches in 2015

Flash Flood Watch 4, NWS Lubbock, TX

May 29, 201516 counties in Texas

NWS Lubbock, TX issued this flash flood watch at May 29, 2015, 4:54 AM CDT for 16 counties in Texas. It took effect at May 29, 2015, 9:00 PM CDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: May 29, 2015, 4:54 AM CDT (09:54 UTC)
In effect from: May 29, 2015, 9:00 PM CDT
Expired: May 30, 2015, 4:22 AM CDT
In force: 7 hr
Issued by: NWS Lubbock, TX
Flood severity: None

Counties Briscoe County, TX, Childress County, TX, Cottle County, TX, Crosby County, TX, Dickens County, TX, Floyd County, TX, Garza County, TX, Hale County, TX, Hall County, TX, Kent County, TX, King County, TX, Lubbock County, TX, Lynn County, TX, Motley County, TX, Stonewall County, TX, Swisher County, TX

The radar

The Lubbock radar (KLBB), 77 km from the middle of the area, began a volume at 09:53 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

Amarillo Airport, TX (KAMA), launched 00:00Z, 9.9 hours before the alert went out and 166 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: 10 J/kg
Mixed-layer CIN: -400 J/kg
Mixed-layer LCL: 1726 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: -53 m²/s²
0-3 km storm-relative helicity: 53 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Lubbock, TX wrote its last area forecast discussion before this flash flood watch went out at May 29, 4:12 AM CDT, 42 minutes earlier.

Area forecast discussion, May 29, 4:12 AM CDT, 42 minutes before

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Hazardous weather outlook, May 29, 4:28 AM CDT, 26 minutes before

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In the hours before

Local storm report, May 28, 11:14 PM CDT, 5 hours 40 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 28, 7:43 PM CDT	Severe Thunderstorm Warning	LUB	Bailey	32 min
May 28, 9:00 PM CDT	Special Weather Statement	LUB	Cochran, Yoakum	30 min
May 28, 9:35 PM CDT	Special Weather Statement	LUB	Hockley, Terry, Yoakum	25 min
May 28, 10:03 PM CDT	Special Weather Statement	LUB	Hockley, Lubbock, Terry	27 min
May 28, 10:34 PM CDT	Special Weather Statement	LUB	Lubbock	26 min

Nearby

Flash Flood Watches in Texas, 2015 Every flash flood watch 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.