Alert archive / Texas / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 152, NWS Shreveport, LA

June 6, 2013Angelina County, Texas

NWS Shreveport, LA issued this severe thunderstorm warning at Jun 6, 2013, 4:25 PM CDT for Angelina County, Texas. It was in force for 65 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 6, 2013, 4:25 PM CDT (21:25 UTC)
Expired: Jun 6, 2013, 5:30 PM CDT
In force: 65 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon

County Angelina County, TX

The radar

The Shreveport radar (KSHV), 152 km from the middle of the area, began a volume at 21:26 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
Jun 6, 2:28 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 9.4 hours before the alert went out and 159 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: 2315 J/kg
Mixed-layer CIN: -37 J/kg
Mixed-layer LCL: 818 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: 35 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.4

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 Shreveport, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 6, 2:46 PM CDT, 1 hour 39 minutes earlier.

Area forecast discussion, Jun 6, 2:46 PM CDT, 1 hour 39 minutes before

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Hazardous weather outlook, Jun 6, 11:59 AM CDT, 4 hours 26 minutes before

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In the hours before

Special weather statement, Jun 6, 10:26 AM CDT, 5 hours 59 minutes before

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Special weather statement, Jun 6, 11:34 AM CDT, 4 hours 51 minutes before

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Special weather statement, Jun 6, 11:54 AM CDT, 4 hours 31 minutes before

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Special weather statement, Jun 6, 1:12 PM CDT, 3 hours 13 minutes before

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Special weather statement, Jun 6, 3:09 PM CDT, 1 hour 16 minutes before

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Special weather statement, Jun 6, 4:16 PM CDT, 9 minutes before

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The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 6, 7:07 AM CDT	Severe Thunderstorm Warning	SHV	Smith, Wood	53 min
Jun 6, 7:23 AM CDT	Severe Thunderstorm Warning	SHV	Franklin, Red River, Titus	52 min
Jun 6, 9:01 AM CDT	Severe Thunderstorm Warning	SHV	Cass	29 min
Jun 6, 9:25 AM CDT	Severe Thunderstorm Warning	SHV	Cass, Harrison, Marion, Panola	35 min
Jun 6, 1:37 AM CDT	Severe Thunderstorm Warning	SHV	Bienville, Webster	53 min
Jun 6, 2:08 AM CDT	Flash Flood Warning	SHV	Ouachita	3 hr
Jun 6, 5:14 AM CDT	Severe Thunderstorm Warning	SHV	Grant, Winn	46 min
Jun 6, 6:23 AM CDT	Flash Flood Warning	SHV	Bienville, Grant, Natchitoches, Red River, Winn	3 hr

Nearby

Severe Thunderstorm Warnings in Texas, 2013 Every severe thunderstorm warning in 2013

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.