Alert archive / Texas / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 53, NWS Lubbock, TX

April 30, 2019Floyd County, Texas

NWS Lubbock, TX issued this severe thunderstorm warning at Apr 30, 2019, 7:08 PM CDT for Floyd County, Texas. It was in force for 32 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: Apr 30, 2019, 7:08 PM CDT (00:08 UTC)
Expired: Apr 30, 2019, 7:40 PM CDT
In force: 32 min
Issued by: NWS Lubbock, TX
Area: Storm-based polygon
Tornado: Possible
Hail: 1.75 in
Wind: 50.0 mph

County Floyd County, TX

The radar

The Lubbock radar (KLBB), 66 km from the middle of the area, began a volume at 00:11 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 30, 4:26 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 0.1 hours before the alert went out and 379 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: 65 J/kg
Mixed-layer CIN: -282 J/kg
Mixed-layer LCL: 862 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 129 m²/s²
0-3 km storm-relative helicity: 139 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Apr 30, 6:46 PM CDT, 22 minutes earlier.

Area forecast discussion, Apr 30, 6:46 PM CDT, 22 minutes before

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Hazardous weather outlook, Apr 30, 11:29 AM CDT, 7 hours 39 minutes before

Hazardous Weather Outlook...UPDATED
National Weather Service Lubbock TX
1129 AM CDT Tue Apr 30 2019

TXZ021>044-010000-
Parmer-Castro-Swisher-Briscoe-Hall-Childress-Bailey-Lamb-Hale-
Floyd-Motley-Cottle-Cochran-Hockley-Lubbock-Crosby-Dickens-King-
Yoakum-Terry-Lynn-Garza-Kent-Stonewall-
1129 AM CDT Tue Apr 30 2019

This Hazardous Weather Outlook is for the South Plains, Rolling
Plains and the far Southern Texas Panhandle.

.DAY ONE...Today and Tonight

Isolated severe thunderstorms are possible this afternoon,
favoring locations along and east of the Interstate 27 and
Highway 87 Corridor. The strongest of storms could produce
hail to golf ball size and wind gusts to 60 mph.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

A few strong or severe thunderstorms may develop Wednesday
afternoon, mainly across the far eastern Rolling Plains and
extreme southeastern Texas Panhandle. Daily chances for severe
storms are also possible from Friday through Monday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be requested today.

In the hours before

Local storm report, Apr 30, 5:32 PM CDT, 1 hour 36 minutes before

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Local storm report, Apr 30, 5:42 PM CDT, 1 hour 26 minutes before

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Local storm report, Apr 30, 5:48 PM CDT, 1 hour 20 minutes before

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Local storm report, Apr 30, 6:45 PM CDT, 23 minutes before

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Local storm report, Apr 30, 6:53 PM CDT, 15 minutes before

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Local storm report, Apr 30, 6:59 PM CDT, 9 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
Apr 30, 7:29 PM CDT	Severe Thunderstorm Warning	LUB	Floyd, Motley	46 min
May 1, 1:30 AM CDT	Dense Fog Advisory	LUB	Briscoe, Childress, Cottle, Crosby, Dickens, Floyd and 9 more	8 hr
May 1, 2:04 PM CDT	Severe Thunderstorm Warning	LUB	Stonewall	41 min
May 1, 3:36 PM CDT	Severe Thunderstorm Warning	LUB	Stonewall	39 min
May 1, 4:02 PM CDT	Tornado Warning	LUB	Stonewall	28 min
May 1, 4:29 PM CDT	Areal Flood Advisory	LUB	Stonewall	2 hr
May 1, 4:29 PM CDT	Severe Thunderstorm Warning	LUB	Stonewall	31 min
May 1, 6:03 PM CDT	Severe Thunderstorm Warning	LUB	Stonewall	57 min
May 1, 6:31 PM CDT	Areal Flood Advisory	LUB	Stonewall	119 min
May 1, 6:53 PM CDT	Severe Thunderstorm Warning	LUB	Stonewall	67 min

Nearby

Severe Thunderstorm Warnings in Texas, 2019 Every severe thunderstorm warning in 2019

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.