Alert archive / Louisiana / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 71, NWS Lake Charles, LA

July 29, 2018Beauregard Parish, Calcasieu Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Jul 29, 2018, 6:54 PM CDT for Beauregard Parish, Calcasieu Parish, Louisiana. 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: Jul 29, 2018, 6:54 PM CDT (23:54 UTC)
Expired: Jul 29, 2018, 8:00 PM CDT
In force: 66 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Beauregard Parish, LA, Calcasieu Parish, LA

The radar

The Lake Charles radar (KLCH), 37 km from the middle of the area, began a volume at 23:57 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, 11.9 hours before the alert went out and 230 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: 662 J/kg
Mixed-layer CIN: -119 J/kg
Mixed-layer LCL: 1046 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: -12 m²/s²
0-3 km storm-relative helicity: 111 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Lake Charles, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 29, 6:27 PM CDT, 27 minutes earlier.

Area forecast discussion, Jul 29, 6:27 PM CDT, 27 minutes before

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Hazardous weather outlook, Jul 29, 3:32 PM CDT, 3 hours 22 minutes before

Hazardous Weather Outlook
National Weather Service Lake Charles LA
332 PM CDT Sun Jul 29 2018

LAZ027>033-041>045-052>055-073-074-TXZ180-201-215-216-259>262-
302045-
Vernon-Rapides-Avoyelles-Beauregard-Allen-Evangeline-St. Landry-
Calcasieu-Jefferson Davis-Acadia-Lafayette-Upper St. Martin-
Vermilion-Iberia-St. Mary-Lower St. Martin-West Cameron-
East Cameron-Tyler-Hardin-Jefferson-Orange-Northern Jasper-
Northern Newton-Southern Jasper-Southern Newton-
332 PM CDT Sun Jul 29 2018

This Hazardous Weather Outlook is for portions of central
Louisiana, south central Louisiana, southwest Louisiana, west
central Louisiana, and southeast Texas.

.DAY ONE...This Afternoon and Tonight
Scattered showers and thunderstorms can be expected this afternoon,
with the highest chances expected across Central and Southern
Louisiana. Some strong thunderstorms can be expected, with gusty
winds and small hail. Can not rule out a few of these
thunderstorms becoming severe with the various outflow boundary
and seabreeze interactions, with damaging winds the most likely
severe weather threat. Showers and storms will diminish during
the evening.

.DAYS TWO THROUGH SEVEN...Monday through Saturday
Scattered to numerous showers and thunderstorms can be expected by
Monday night into Tuesday as an upper trough and surface front
move into the area. At this time, the probability of severe
weather is low. However, some stronger storms will be possible,
bringing the potential for frequent cloud to ground lightning and
gusty winds of 40 to 50 mph. In addition, elevated moisture
content over the area will result in localized downpours that
could cause minor flooding of urban and poor drainage areas.

Expect decreased chances of shower and thunderstorms by Wednesday
across Inland Southeast Texas and Central Louisiana, and by
Wednesday night into Thursday for the remainder of the area. Lower
humidity values can be expected as well. The exception will be
the immediate coast and coastal waters where the front is expected
to stall through Thursday.

By Friday through next weekend, expect a return to scattered
showers and thunderstorms.

.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.

GMZ430-432-435-450-452-455-470-472-475-302045-
Sabine Lake-Calcasieu Lake-Vermilion Bay-
Coastal waters from Cameron LA to High Island TX out 20 NM-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
Waters from Cameron LA to High Island TX from 20 to 60 NM-
Waters from  Intracoastal City to Cameron LA from 20 to 60 NM-
Waters from Lower Atchafalaya River to Intracoastal City LA from
20 to 60 NM-
332 PM CDT Sun Jul 29 2018

This Hazardous Weather Outlook is for portions of Gulf of Mexico.

.DAY ONE...This Afternoon and Tonight
No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Monday through Saturday
Scattered to numerous showers and thunderstorms can be expected by
Monday night into Tuesday as an upper trough and surface front
move into the area. At this time, the probability of severe
weather is low. However, some stronger storms will be possible,
bringing the potential for frequent cloud to ground lightning and
gusty winds over 35 knots possible.

Expect chances of shower and thunderstorms to continue with the
expected stalling of the cool front.

.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.

In the hours before

Special weather statement, Jul 29, 5:00 PM CDT, 1 hour 54 minutes before

Special Weather Statement
National Weather Service Lake Charles LA
500 PM CDT SUN JUL 29 2018

LAZ027-028-TXZ259-260-292245-
Vernon LA-Rapides LA-Northern Newton TX-Northern Jasper TX-
500 PM CDT SUN JUL 29 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN RAPIDES...NORTHERN
VERNON PARISHES IN WEST CENTRAL LOUISIANA AND NORTHERN NEWTON
COUNTIES UNTIL 545 PM CDT...

At 459 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 7 miles north of Harrisburg to Boyce. Movement
was southeast at 20 mph.

Winds in excess of 40 mph will be possible with these storms.

Locations impacted include...
Alexandria, Pineville, Leesville, Boyce, Anacoco, Alexandria
International Airport, Slagle, Toledo Bend Dam, Burkeville, Fort
Polk, Ball, New Llano, Hornbeck, Tioga, Timber Trails, Hutton, Esler
Regional Airport, Flatwoods, Otis and Mayflower.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3134 9207 3130 9216 3133 9222 3128 9223
      3092 9374 3114 9398 3117 9358 3128 9353
      3128 9344 3133 9341 3135 9334 3135 9295
      3140 9289 3143 9269 3140 9269 3139 9265
      3147 9222
TIME...MOT...LOC 2159Z 303DEG 35KT 3112 9386 3138 9265

04

Special weather statement, Jul 29, 5:25 PM CDT, 1 hour 29 minutes before

Special Weather Statement
National Weather Service Lake Charles LA
525 PM CDT SUN JUL 29 2018

LAZ030>033-042-043-292315-
Acadia LA-Jefferson Davis LA-St. Landry LA-Evangeline LA-Allen LA-
Beauregard LA-
525 PM CDT SUN JUL 29 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN JEFFERSON DAVIS...
NORTHEASTERN BEAUREGARD...SOUTHWESTERN EVANGELINE...NORTHERN
ACADIA...WEST CENTRAL ST. LANDRY AND CENTRAL ALLEN PARISHES UNTIL 615
PM CDT...

At 525 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Sugartown to Branch. Movement was east at
25 mph.

Wind gusts up to 50 mph will be possible with these storms.

Locations impacted include...
Eunice, Basile, Oberlin, Iota, Elton, Dry Creek, Mittie, Mowata,
Harmony, Maxie, Duralde, Branch, Richard and Bundick Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.and is nearly stationary

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3086 9311 3045 9226 3032 9225 3028 9255
      3041 9274 3076 9317
TIME...MOT...LOC 2225Z 264DEG 22KT 3077 9306 3037 9227

04

Special weather statement, Jul 29, 5:26 PM CDT, 1 hour 28 minutes before

Special Weather Statement
National Weather Service Lake Charles LA
526 PM CDT SUN JUL 29 2018

LAZ030>033-042-043-292315-
Acadia LA-Jefferson Davis LA-St. Landry LA-Evangeline LA-Allen LA-
Beauregard LA-
526 PM CDT SUN JUL 29 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN JEFFERSON DAVIS...
NORTHEASTERN BEAUREGARD...SOUTHWESTERN EVANGELINE...NORTHERN
ACADIA...WEST CENTRAL ST. LANDRY AND CENTRAL ALLEN PARISHES UNTIL 615
PM CDT...

At 526 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Sugartown to Branch. Movement was south
at 25 mph.

Wind gusts up to 50 mph will be possible with these storms.

Locations impacted include...
Eunice, Basile, Oberlin, Iota, Elton, Dry Creek, Mittie, Mowata,
Harmony, Maxie, Duralde, Branch, Richard and Bundick Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3086 9311 3045 9226 3032 9225 3028 9255
      3041 9274 3076 9317
TIME...MOT...LOC 2226Z 264DEG 22KT 3077 9306 3037 9227

04

Special weather statement, Jul 29, 5:30 PM CDT, 1 hour 24 minutes before

Special Weather Statement
National Weather Service Lake Charles LA
530 PM CDT SUN JUL 29 2018

LAZ041-292315-
Calcasieu LA-
530 PM CDT SUN JUL 29 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTH CENTRAL CALCASIEU PARISH
UNTIL 615 PM CDT...

At 530 PM CDT, Doppler radar was tracking a strong thunderstorm near
Lake Charles, moving southwest at 5 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Lake Charles, Sulphur, Westlake, Lake Charles Regional Airport and
Carlyss.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3021 9340 3027 9327 3016 9316 3005 9331
TIME...MOT...LOC 2230Z 050DEG 6KT 3018 9326

04

Local storm report, Jul 29, 5:34 PM CDT, 1 hour 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
534 PM CDT SUN JUL 29 2018

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

0515 PM     TSTM WND DMG     EUNICE                  30.49N 92.42W
07/29/2018                   ST. LANDRY         LA   BROADCAST MEDIA

            BROADCAST MEDIA REPORTED TREE DOWN ON A CAR IN THE EUNICE
            AREA.

&&

RMEGNIA

Special weather statement, Jul 29, 6:15 PM CDT, 39 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 28, 7:07 PM CDT	Special Weather Statement	LCH	Calcasieu	38 min
Jul 28, 7:41 PM CDT	Special Weather Statement	LCH	St. Mary	49 min
Jul 29, 2:53 PM CDT	Special Weather Statement	LCH	St. Mary	37 min
Jul 29, 3:18 PM CDT	Special Weather Statement	LCH	Saint Martin	42 min
Jul 29, 4:09 PM CDT	Special Weather Statement	LCH	Assumption	66 min
Jul 29, 4:43 PM CDT	Areal Flood Advisory	LCH	Iberia, Saint Martin	2 hr
Jul 29, 5:00 PM CDT	Special Weather Statement	LCH	Vernon	45 min
Jul 29, 5:19 PM CDT	Severe Thunderstorm Warning	LCH	Acadia, Saint Landry	56 min
Jul 29, 5:25 PM CDT	Special Weather Statement	LCH	Allen	50 min
Jul 29, 5:26 PM CDT	Special Weather Statement	LCH	Allen	49 min
Jul 29, 5:30 PM CDT	Special Weather Statement	LCH	Calcasieu	45 min
Jul 29, 6:15 PM CDT	Special Weather Statement	LCH	Calcasieu	45 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 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.