Alert archive / Louisiana / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 52, NWS Shreveport, LA

April 6, 20194 parishes in Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Apr 6, 2019, 11:44 AM CDT for 4 parishes in Louisiana. It was in force for 61 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 6, 2019, 11:44 AM CDT (16:44 UTC)
Expired: Apr 6, 2019, 12:45 PM CDT
In force: 61 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Grant Parish, LA, LaSalle Parish, LA, Natchitoches Parish, LA, Winn Parish, LA

The radar

The Ft Polk radar (KPOE), 73 km from the middle of the area, began a volume at 16:47 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

Shreveport, LA (KBAD), launched 12:00Z, 4.7 hours before the alert went out and 135 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: 242 J/kg
Mixed-layer CIN: -295 J/kg
Mixed-layer LCL: 570 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 179 m²/s²
0-3 km storm-relative helicity: 240 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.3

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 Apr 6, 7:12 AM CDT, 4 hours 32 minutes earlier.

Area forecast discussion, Apr 6, 7:12 AM CDT, 4 hours 32 minutes before

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Hazardous weather outlook, Apr 6, 6:11 AM CDT, 5 hours 33 minutes before

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In the hours before

Special weather statement, Apr 6, 9:28 AM CDT, 2 hours 16 minutes before

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Special weather statement, Apr 6, 10:19 AM CDT, 1 hour 25 minutes before

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Special weather statement, Apr 6, 10:27 AM CDT, 1 hour 17 minutes before

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Special weather statement, Apr 6, 11:14 AM CDT, 30 minutes before

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Special weather statement, Apr 6, 11:23 AM CDT, 21 minutes before

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Special weather statement, Apr 6, 11:39 AM CDT, 5 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
Apr 6, 9:16 AM CDT	Special Weather Statement	SHV	San Augustine	59 min
Apr 6, 9:28 AM CDT	Special Weather Statement	SHV	Sabine	62 min
Apr 6, 10:27 AM CDT	Special Weather Statement	SHV	Sabine	63 min
Apr 6, 12:09 PM CDT	Severe Thunderstorm Warning	SHV	Franklin, Wood	37 min
Apr 6, 12:13 PM CDT	Special Weather Statement	SHV	Gregg, Smith, Upshur	47 min
Apr 6, 12:39 PM CDT	Special Weather Statement	SHV	Sabine	66 min
Apr 6, 12:50 PM CDT	Special Weather Statement	SHV	Bowie, Cass, Morris	55 min
Apr 6, 4:17 PM CDT	Severe Thunderstorm Warning	SHV	Cherokee, Rusk	58 min
Apr 6, 4:23 PM CDT	Tornado Warning	SHV	Cherokee	22 min
Apr 6, 4:41 PM CDT	Tornado Warning	SHV	Cherokee, Rusk	34 min
Apr 6, 6:10 PM CDT	Severe Thunderstorm Warning	SHV	Cherokee, Nacogdoches, Rusk	65 min
Apr 6, 6:23 PM CDT	Tornado Warning	SHV	Cherokee, Nacogdoches, Rusk	52 min
Apr 6, 10:19 AM CDT	Special Weather Statement	SHV	Grant, Winn	56 min
Apr 6, 11:14 AM CDT	Special Weather Statement	SHV	Caddo	61 min
Apr 6, 11:23 AM CDT	Special Weather Statement	SHV	Grant, Natchitoches, Winn	52 min
Apr 6, 11:39 AM CDT	Special Weather Statement	SHV	Bienville, Red River	66 min
Apr 6, 12:18 PM CDT	Special Weather Statement	SHV	Bossier	57 min
Apr 6, 12:39 PM CDT	Severe Thunderstorm Warning	SHV	Caldwell, Grant, LaSalle, Winn	66 min
Apr 6, 2:50 PM CDT	Special Weather Statement	SHV	Caldwell	40 min
Apr 6, 2:53 PM CDT	Severe Thunderstorm Warning	SHV	Caldwell, LaSalle	24 min
Apr 6, 4:58 PM CDT	Special Weather Statement	SHV	Jackson, Ouachita	62 min
Apr 6, 5:37 PM CDT	Special Weather Statement	SHV	Jackson, Ouachita	23 min
Apr 6, 5:44 PM CDT	Tornado Warning	SHV	Natchitoches, Red River	16 min
Apr 6, 6:28 PM CDT	Special Weather Statement	SHV	Jackson, Ouachita, Winn	62 min
Apr 6, 6:54 PM CDT	Special Weather Statement	SHV	Bienville, Jackson, Lincoln, Red River	51 min
Apr 6, 1:17 PM CDT	Special Weather Statement	SHV	Nevada	28 min
Apr 6, 1:21 PM CDT	Special Weather Statement	SHV	Howard	39 min
Apr 6, 1:29 PM CDT	Severe Thunderstorm Warning	SHV	Howard, Sevier	26 min
Apr 6, 2:59 PM CDT	Special Weather Statement	SHV	Union	31 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 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.