Alert archive / Texas / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 150, NWS Shreveport, LA

June 24, 2018Bowie County, Cass County, Texas; Little River County, Miller County, Arkansas

NWS Shreveport, LA issued this severe thunderstorm warning at Jun 24, 2018, 7:24 PM CDT for Bowie County, Cass County, Texas; Little River County, Miller County, Arkansas. It was in force for 66 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 24, 2018, 7:24 PM CDT (00:24 UTC)
Expired: Jun 24, 2018, 8:30 PM CDT
In force: 66 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Little River County, AR, Miller County, AR, Bowie County, TX, Cass County, TX

The radar

The Shreveport radar (KSHV), 110 km from the middle of the area, began a volume at 00:27 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 24, 4:53 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 0.4 hours before the alert went out and 356 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: 218 J/kg
Mixed-layer CIN: -476 J/kg
Mixed-layer LCL: 2275 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 74 m²/s²
0-3 km storm-relative helicity: 192 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

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 24, 6:13 PM CDT, 1 hour 11 minutes earlier.

Area forecast discussion, Jun 24, 6:13 PM CDT, 1 hour 11 minutes before

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Hazardous weather outlook, Jun 24, 3:26 PM CDT, 3 hours 58 minutes before

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In the hours before

Local storm report, Jun 24, 3:49 PM CDT, 3 hours 35 minutes before

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Special weather statement, Jun 24, 5:06 PM CDT, 2 hours 18 minutes before

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Special weather statement, Jun 24, 5:54 PM CDT, 1 hour 30 minutes before

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Special weather statement, Jun 24, 6:34 PM CDT, 50 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 24, 7:13 PM CDT	Special Weather Statement	SHV	Bowie	62 min
Jun 24, 8:06 PM CDT	Special Weather Statement	SHV	Cass	39 min
Jun 24, 8:07 PM CDT	Special Weather Statement	SHV	Nevada	38 min

Nearby

Severe Thunderstorm Warnings in Texas, 2018 Severe Thunderstorm Warnings in Arkansas, 2018 Every severe thunderstorm warning in 2018

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.