Alert archive / Louisiana / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 256, NWS Shreveport, LA

June 20, 20194 parishes in Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Jun 20, 2019, 1:10 AM CDT for 4 parishes in Louisiana. 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 20, 2019, 1:10 AM CDT (06:10 UTC)
Expired: Jun 20, 2019, 2:15 AM CDT
In force: 65 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Jackson Parish, LA, Lincoln Parish, LA, Ouachita Parish, LA, Union Parish, LA

The radar

The Shreveport radar (KSHV), 132 km from the middle of the area, began a volume at 06:11 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
Jun 19, 8:42 PM CDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 19, 10:50 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 6.2 hours before the alert went out and 123 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: 2383 J/kg
Mixed-layer CIN: -46 J/kg
Mixed-layer LCL: 1291 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 177 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 10.7

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 20, 12:53 AM CDT, 17 minutes earlier.

Area forecast discussion, Jun 20, 12:53 AM CDT, 17 minutes before

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Hazardous weather outlook, Jun 19, 12:14 PM CDT, 12 hours 56 minutes before

Hazardous Weather Outlook
National Weather Service Shreveport LA
1214 PM CDT Wed Jun 19 2019

ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-
TXZ096-097-108>112-124>126-136>138-149>153-165>167-201715-
Sevier-Howard-Little River-Hempstead-Nevada-Miller-Lafayette-
Columbia-Union-Caddo-Bossier-Webster-Claiborne-Lincoln-De Soto-
Red River-Bienville-Jackson-Ouachita-Sabine-Natchitoches-Winn-
Grant-Caldwell-La Salle-McCurtain-Bowie-Franklin-Titus-Camp-
Morris-Cass-Wood-Upshur-Marion-Smith-Gregg-Harrison-Cherokee-Rusk-
Panola-Nacogdoches-Shelby-Angelina-San Augustine-
1214 PM CDT Wed Jun 19 2019

This Hazardous Weather Outlook is for portions of south central
Arkansas, southwest Arkansas, north central Louisiana, northwest
Louisiana, southeast Oklahoma, east Texas and northeast Texas.

.DAY ONE...This Afternoon and Tonight...

Strong to severe thunderstorms are expected to develop again later
this afternoon and evening across Northeast Texas and surrounding
areas and move southeastward, as an upper level disturbance
advances across the region. Damaging winds, very large hail, and
perhaps a few isolated tornadoes will be possible with the
storms. Locally heavy rainfall could also produce isolated
flooding in some areas.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday...

A few thunderstorms may linger across north Louisiana and
southwest Arkansas through midday Thursday before diminishing by
Thursday afternoon. Only isolated showers and thunderstorms are
expected across portions of the region on Friday and Saturday
before becoming more scattered by Sunday through early next week.
Although severe weather is unlikely, a few strong storms may be
possible from Sunday through early next week.

.SPOTTER INFORMATION STATEMENT...

Activation of emergency managers, spotter networks, and amateur
radio operators, may be needed this evening and tonight.

12

In the hours before

Local storm report, Jun 19, 11:30 PM CDT, 1 hour 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1130 PM CDT WED JUN 19 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1105 PM     HAIL             3 E ALBA                32.79N 95.58W
06/19/2019  E1.25 INCH       WOOD               TX   LAW ENFORCEMENT

            HALF DOLLAR SIZE HAIL REPORTED JUST WEST OF
            LAKE FORK DAM.

&&

20

Local storm report, Jun 19, 11:41 PM CDT, 1 hour 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1141 PM CDT WED JUN 19 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1111 PM     HAIL             QUITMAN                 32.80N 95.44W
06/19/2019  E1.75 INCH       WOOD               TX   BROADCAST MEDIA

            REPORT OF DIME TO GOLF BALL SIZE HAIL IN
            QUITMAN.

&&

20

Local storm report, Jun 19, 11:56 PM CDT, 1 hour 14 minutes before

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Special weather statement, Jun 19, 11:57 PM CDT, 1 hour 13 minutes before

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Special weather statement, Jun 20, 12:00 AM CDT, 1 hour 10 minutes before

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Special weather statement, Jun 20, 12:07 AM CDT, 1 hour 3 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 19, 7:02 PM CDT	Severe Thunderstorm Warning	SHV	Camp, Franklin, Titus, Upshur, Wood	58 min
Jun 19, 7:15 PM CDT	Special Weather Statement	SHV	Bowie	30 min
Jun 19, 7:50 PM CDT	Severe Thunderstorm Warning	SHV	Franklin, Titus	40 min
Jun 19, 7:55 PM CDT	Severe Thunderstorm Warning	SHV	Camp, Cass, Harrison, Marion, Morris, Titus and 1 more	50 min
Jun 19, 8:24 PM CDT	Severe Thunderstorm Warning	SHV	Morris, Titus	34 min
Jun 19, 8:28 PM CDT	Severe Thunderstorm Warning	SHV	Camp, Franklin, Titus	32 min
Jun 19, 8:44 PM CDT	Severe Thunderstorm Warning	SHV	Harrison, Marion	31 min
Jun 19, 8:56 PM CDT	Severe Thunderstorm Warning	SHV	Camp, Cass, Franklin, Harrison, Marion, Morris and 2 more	64 min
Jun 19, 9:52 PM CDT	Severe Thunderstorm Warning	SHV	Cass, Harrison, Marion	38 min
Jun 19, 9:55 PM CDT	Severe Thunderstorm Warning	SHV	Camp, Franklin, Titus, Wood	50 min
Jun 19, 10:02 PM CDT	Special Weather Statement	SHV	Red River	43 min
Jun 19, 10:19 PM CDT	Special Weather Statement	SHV	Cass, Morris	41 min
Jun 19, 10:24 PM CDT	Severe Thunderstorm Warning	SHV	Cass, Harrison, Marion	51 min
Jun 19, 10:35 PM CDT	Severe Thunderstorm Warning	SHV	Camp, Franklin, Titus, Upshur, Wood	55 min
Jun 19, 11:16 PM CDT	Severe Thunderstorm Warning	SHV	Smith, Upshur, Wood	44 min
Jun 19, 11:30 PM CDT	Severe Thunderstorm Warning	SHV	Camp, Upshur, Wood	45 min
Jun 19, 11:31 PM CDT	Severe Thunderstorm Warning	SHV	Harrison	59 min
Jun 19, 11:42 PM CDT	Flash Flood Warning	SHV	Wood	3 hr
Jun 19, 11:45 PM CDT	Severe Thunderstorm Warning	SHV	Red River	24 min
Jun 19, 11:57 PM CDT	Special Weather Statement	SHV	Rusk	48 min
Jun 20, 12:00 AM CDT	Special Weather Statement	SHV	Harrison, Marion, Upshur	45 min
Jun 20, 12:07 AM CDT	Special Weather Statement	SHV	Gregg	53 min
Jun 20, 12:28 AM CDT	Severe Thunderstorm Warning	SHV	Harrison, Panola, Rusk, Shelby	44 min
Jun 20, 8:18 AM CDT	River Flood Warning	SHV	Gregg	23 hr
Jun 20, 9:24 AM CDT	River Flood Warning	SHV	Wood	7 days
Jun 20, 9:58 AM CDT	River Flood Warning	SHV	Smith, Upshur, Wood	14 days
Jun 19, 10:52 PM CDT	Tornado Warning	SHV	Bossier, Webster	13 min
Jun 19, 11:08 PM CDT	Severe Thunderstorm Warning	SHV	Bossier, Claiborne, Webster	52 min
Jun 19, 11:26 PM CDT	Special Weather Statement	SHV	Bossier, Caddo, Webster	49 min
Jun 19, 11:51 PM CDT	Severe Thunderstorm Warning	SHV	Claiborne, Lincoln, Union	54 min
Jun 20, 12:22 AM CDT	Severe Thunderstorm Warning	SHV	Bienville, Claiborne, Lincoln, Webster	53 min
Jun 20, 1:30 AM CDT	Special Weather Statement	SHV	Sabine	45 min
Jun 20, 2:22 AM CDT	Special Weather Statement	SHV	Grant, Natchitoches, Winn	53 min
Jun 19, 7:32 PM CDT	Areal Flood Advisory	SHV	Little River, Sevier	118 min
Jun 19, 7:43 PM CDT	Special Weather Statement	SHV	Hempstead, Lafayette, Miller, Nevada	47 min
Jun 19, 7:53 PM CDT	Severe Thunderstorm Warning	SHV	Columbia, Hempstead, Lafayette, Miller, Nevada	56 min
Jun 19, 8:35 PM CDT	Severe Thunderstorm Warning	SHV	Columbia, Union	55 min
Jun 19, 10:40 PM CDT	Special Weather Statement	SHV	Little River	50 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.