Alert archive / Louisiana / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 68, NWS Lake Charles, LA

July 3, 2018Beauregard Parish, Calcasieu Parish, Louisiana; Newton County, Texas

NWS Lake Charles, LA issued this severe thunderstorm warning at Jul 3, 2018, 3:56 PM CDT for Beauregard Parish, Calcasieu Parish, Louisiana; Newton County, Texas. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 3, 2018, 3:56 PM CDT (20:56 UTC)
Expired: Jul 3, 2018, 4:27 PM CDT
In force: 31 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, Newton County, TX

The radar

The Lake Charles radar (KLCH), 56 km from the middle of the area, began a volume at 21:00 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 8.9 hours before the alert went out and 57 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: 1603 J/kg
Mixed-layer CIN: -69 J/kg
Mixed-layer LCL: 825 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: -61 m²/s²
0-3 km storm-relative helicity: 5 m²/s²
Significant tornado parameter: -0.2
Supercell composite: -2.1

Open this sounding in Storm Lab

The text

As transmitted.

697 
WUUS54 KLCH 032056
SVRLCH
LAC011-019-TXC351-032145-
/O.NEW.KLCH.SV.W.0068.180703T2056Z-180703T2145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lake Charles LA
356 PM CDT TUE JUL 3 2018

The National Weather Service in Lake Charles has issued a

* Severe Thunderstorm Warning for...
  Western Beauregard Parish in southwestern Louisiana...
  Northwestern Calcasieu Parish in southwestern Louisiana...
  Southwestern Newton County in southeastern Texas...

* Until 445 PM CDT.

* At 355 PM CDT, a severe thunderstorm was located near Singer,
  moving southwest at 35 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Merryville, Singer, Deweyville, Starks, Fields, De Quincy,
  Dequincy, Lunita, Bivens, Old Salem, Wrights Settlement, Devils
  Pocket, Bancroft and Oretta.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

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

&&

LAT...LON 3078 9354 3057 9328 3020 9354 3026 9375
      3045 9389
TIME...MOT...LOC 2055Z 037DEG 29KT 3060 9348 

HAIL...<.75IN
WIND...60MPH
 
$$

Warthen

1 follow-up statement

949 
WWUS54 KLCH 032127
SVSLCH

Severe Weather Statement
National Weather Service Lake Charles LA
427 PM CDT TUE JUL 3 2018

LAC011-019-TXC351-032137-
/O.CAN.KLCH.SV.W.0068.000000T0000Z-180703T2145Z/
Beauregard LA-Calcasieu LA-Newton TX-
427 PM CDT TUE JUL 3 2018

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN BEAUREGARD...
NORTHWESTERN CALCASIEU PARISHES IN SOUTHWESTERN LOUISIANA AND
SOUTHWESTERN NEWTON COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.  However gusty winds and
heavy rain are still possible with this thunderstorm.

LAT...LON 3078 9354 3057 9328 3020 9354 3026 9375
      3045 9389
TIME...MOT...LOC 2127Z 037DEG 29KT 3040 9365 

$$

Warthen

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 3, 3:31 PM CDT, 25 minutes earlier.

Area forecast discussion, Jul 3, 3:31 PM CDT, 25 minutes before

Area Forecast Discussion
National Weather Service Lake Charles LA
331 PM CDT Tue Jul 3 2018

.DISCUSSION...A trough of low pressure is working west across SE
Louisiana this afternoon around the base of a larger ridge that
is stretched from the mid-Mississippi Valley into the Atlantic.
Another inverted trough stretches from the Bahamas to east of the
outer banks of the Carolinas.

The inverted trough over SE LA will continue west tonight and
Wednesday with storm coverage continuing to increase area wide
this afternoon and evening. PWATS will run between 2.25 - 2.5" as
the disturbance passes which will allow for very efficient rain
producers. This may create the opportunity for urban/small stream
flooding if a storm sits over any location for an extended amount
of time. Areal average is still expected to be from 1 to 3" with
localized higher amounts of 6" possible.

Rain chances are expected to taper off through the afternoon of
the 4th as the trough axis passes, however isolated showers and
storms will remain possible through the evening.

Scattered to numerous showers and storms will remain possible
through the remainder of the period as the upper ridge doesn't
become reestablished, however slightly higher pops may occur
Saturday as another inverted trough passes through.

&&

.MARINE...While a generally light to moderate flow is expected
through the period winds and seas will be higher near scattered to
numerous showers and storms. Seas are expected to run around or
less than a foot above normal as the trough of low pressure passes
tonight/Wednesday.

&&

.PRELIMINARY POINT TEMPS/POPS...
AEX  71  88  72  91 /  60  50  20  70
LCH  72  86  74  89 /  70  70  20  60
LFT  72  87  74  89 /  60  60  20  70
BPT  74  83  74  89 /  80  80  20  50

&&

.LCH WATCHES/WARNINGS/ADVISORIES...
LA...None.
TX...None.
GM...None.
&&

PUBLIC...05

Hazardous weather outlook, Jul 3, 3:33 PM CDT, 23 minutes before

Hazardous Weather Outlook
National Weather Service Lake Charles LA
333 PM CDT Tue Jul 3 2018

LAZ027>033-041>045-052>055-073-074-TXZ180-201-215-216-259>262-042045-
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-
333 PM CDT Tue Jul 3 2018

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

.DAY ONE...This Afternoon and Tonight.

An inverted surface trough, along with an upper level disturbance
and an increase in tropical moisture, will be moving the forecast
area. Numerous showers and thunderstorms will be the result. Some
of the stronger convection will produce locally heavy rainfall
with rates between 1 to 2 inches per hour. Overall total rainfall
amounts will average between 2 to 3 inches over south central and
southwest Louisiana, as well as southeast Texas, with 1 to 2
inches elsewhere. However, locally higher amounts of 4 to 6 inches
will occur, especially if any convection starts to train along
outflow boundaries or rain bursts from storm mergers. This may lead
to flooding or streets and other low lying poor drainage areas. A
marginal risk (5 to 10 percent) for excessive rainfall has been
outlined for the area.

Other hazards include the possibility of occasional to frequent
cloud to ground lightning. Also, tropical funnel clouds may form
in the development stage of the convection along and south of the
I-10 corridor. Gusty winds to near 60 MPH may also occur in the
strongest of storms.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Elevated moisture values will hang around through the remainder
of the period with daily chances for showers and thunderstorms.
Locally heavy downpours and occasional cloud to ground lighting
will be the main hazards.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

GMZ430-432-435-450-452-455-470-472-475-042045-
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-
333 PM CDT Tue Jul 3 2018

This Hazardous Weather Outlook is for Gulf of Mexico.

.DAY ONE...This Afternoon and Tonight.

Numerous showers and storms will be likely. Heavy rainfall
greatly reducing visibilities, locally higher winds and seas,
along with occasional cloud to water lightning will be possible
near the storms. Also, tropical funnel clouds and waters spouts
may form in the development stage of storms.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Chance for showers and thunderstorms will continue through the
remainder of the period. Winds and seas will be locally higher
near storms, along with occasional cloud to water lightning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Jul 3, 1:42 PM CDT, 2 hours 14 minutes before

Special Weather Statement
National Weather Service Lake Charles LA
142 PM CDT TUE JUL 3 2018

LAZ027-028-031-032-031930-
Evangeline LA-Allen LA-Vernon LA-Rapides LA-
142 PM CDT TUE JUL 3 2018

...SPECIAL WEATHER STATEMENT...

At 142 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Elmer to near Glenmora to near Beaver.
Movement was southwest at 20 mph.

Winds in excess of 30 mph will be possible with these storms.

Locations impacted include...
Oakdale, Glenmora, Elizabeth, Turkey Creek, Hineston, Pitkin, Grant,
Fullerton, Elmer, Allen Parish Airport, Beaver, Cravens, Calcasieu,
Forest Hill, Mcnary and Union Hill.

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 3117 9255 3083 9235 3062 9280 3077 9296
      3080 9298 3088 9298 3088 9302 3108 9309
      3119 9268
TIME...MOT...LOC 1842Z 060DEG 17KT 3111 9271 3091 9262 3081 9251

Warthen

Special weather statement, Jul 3, 2:00 PM CDT, 1 hour 56 minutes before

Special Weather Statement
National Weather Service Lake Charles LA
200 PM CDT TUE JUL 3 2018

LAZ033-043-044-031945-
Acadia LA-Lafayette LA-St. Landry LA-
200 PM CDT TUE JUL 3 2018

...SPECIAL WEATHER STATEMENT...

At 159 PM CDT, Doppler radar was tracking a strong thunderstorm over
Branch, or near Church Point, moving southwest at 20 mph.

Winds in excess of 30 mph will be possible with this storm.

Locations impacted include...
Crowley, Eunice, Rayne, Church Point, Iota, Evangeline, Duson, Morse,
Mowata, Maxie, Mire, Savoy, Egan, Swords, Branch, Richard, Estherwood
and Midland.

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.

&&

LAT...LON 3018 9257 3032 9263 3034 9262 3054 9230
      3054 9226 3056 9226 3057 9225 3025 9213
      3006 9245
TIME...MOT...LOC 1859Z 058DEG 18KT 3034 9227

Warthen

Special weather statement, Jul 3, 2:03 PM CDT, 1 hour 53 minutes before

Special Weather Statement
National Weather Service Lake Charles LA
203 PM CDT TUE JUL 3 2018

LAZ027-031930-
Vernon LA-
203 PM CDT TUE JUL 3 2018

...SPECIAL WEATHER STATEMENT...

At 203 PM CDT, Doppler radar was tracking a strong thunderstorm near
Slagle, moving south at 25 mph.

Winds in excess of 30 mph will be possible with this storm.

Locations impacted include...
Slagle, Fort Polk, Lacamp, Hutton and Simpson.

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 3125 9292 3114 9286 3102 9307 3118 9324
      3137 9310 3137 9309
TIME...MOT...LOC 1903Z 007DEG 21KT 3119 9304

Warthen

Special weather statement, Jul 3, 2:18 PM CDT, 1 hour 38 minutes before

Special Weather Statement
National Weather Service Lake Charles LA
218 PM CDT TUE JUL 3 2018

LAZ031>033-042-043-031945-
Acadia LA-Jefferson Davis LA-St. Landry LA-Evangeline LA-Allen LA-
218 PM CDT TUE JUL 3 2018

...SPECIAL WEATHER STATEMENT...

At 218 PM CDT, Doppler radar was tracking a strong thunderstorm near
Eunice, moving southwest at 25 mph.

Winds in excess of 30 mph will be possible with this storm.

Locations impacted include...
Eunice, Ville Platte, Mamou, Basile, Oberlin, Elton, Pine Prairie,
Chataignier, Bayou Chicot, Prairie Ronde, Savoy, Duralde, Reddell and
Bond.

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.

&&

LAT...LON 3083 9235 3058 9216 3032 9262 3063 9278
TIME...MOT...LOC 1918Z 051DEG 23KT 3056 9240

Warthen

Special weather statement, Jul 3, 2:31 PM CDT, 1 hour 25 minutes before

Special Weather Statement
National Weather Service Lake Charles LA
231 PM CDT TUE JUL 3 2018

LAZ027-030-031-032015-
Allen LA-Beauregard LA-Vernon LA-
231 PM CDT TUE JUL 3 2018

...SPECIAL WEATHER STATEMENT...

At 231 PM CDT, Doppler radar was tracking a strong thunderstorm over
Pitkin, moving southwest at 20 mph.

Winds in excess of 30 mph will be possible with this storm.

Locations impacted include...
Oakdale, Oberlin, Elizabeth, Dry Creek, Pitkin, Sugartown, Mittie,
Grant, Deridder, Harmony, Fullerton, Allen Parish Airport, Cravens
and Bundick Lake.

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 3096 9282 3089 9282 3089 9276 3071 9260
      3070 9260 3052 9296 3084 9327 3107 9292
TIME...MOT...LOC 1931Z 045DEG 16KT 3092 9294

Warthen

Local storm report, Jul 3, 3:26 PM CDT, 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
326 PM CDT TUE JUL 3 2018

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

0245 PM     TSTM WND DMG     2 SSE LEESVILLE         31.11N 93.26W
07/03/2018                   VERNON             LA   LAW ENFORCEMENT

            SHERIFFS DEPARTMENT REPOTED A TREE DOWN ON JEANE CHAPEL
            RD. IN LEESVILLE.

&&

RMEGNIA

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 2, 7:33 PM CDT	Special Weather Statement	LCH	Assumption	42 min
Jul 2, 9:29 PM CDT	Special Weather Statement	LCH	Lafayette	31 min
Jul 2, 10:04 PM CDT	Special Weather Statement	LCH	Acadia	26 min
Jul 2, 10:10 PM CDT	Special Weather Statement	LCH	Vermilion	20 min
Jul 2, 10:32 PM CDT	Special Weather Statement	LCH	Acadia	43 min
Jul 2, 11:14 PM CDT	Special Weather Statement	LCH	Allen, Jefferson Davis	46 min
Jul 2, 11:45 PM CDT	Special Weather Statement	LCH	Vermilion	45 min
Jul 3, 12:56 PM CDT	Special Weather Statement	LCH	Rapides	49 min
Jul 3, 1:08 PM CDT	Special Weather Statement	LCH	Acadia	52 min
Jul 3, 1:14 PM CDT	Areal Flood Advisory	LCH	Iberia, Saint Martin, St. Mary	2 hr
Jul 3, 1:30 PM CDT	Areal Flood Advisory	LCH	Saint Landry	2 hr
Jul 3, 1:32 PM CDT	Special Weather Statement	LCH	Evangeline	43 min
Jul 3, 1:42 PM CDT	Special Weather Statement	LCH	Allen	48 min
Jul 3, 2:00 PM CDT	Special Weather Statement	LCH	Acadia	45 min
Jul 3, 2:03 PM CDT	Special Weather Statement	LCH	Vernon	27 min
Jul 3, 2:08 PM CDT	Severe Thunderstorm Warning	LCH	Vernon	37 min
Jul 3, 2:18 PM CDT	Special Weather Statement	LCH	Evangeline	27 min
Jul 3, 2:31 PM CDT	Special Weather Statement	LCH	Allen	44 min
Jul 3, 2:45 PM CDT	Severe Thunderstorm Warning	LCH	Beauregard, Vernon	30 min
Jul 3, 3:14 PM CDT	Severe Thunderstorm Warning	LCH	Beauregard, Vernon	46 min
Jul 3, 5:06 PM CDT	Tornado Warning	LCH	Cameron	9 min
Jul 3, 5:14 PM CDT	Tornado Warning	LCH	Cameron	16 min
Jul 3, 5:18 PM CDT	Special Marine Warning	LCH		42 min
Jul 3, 5:52 PM CDT	Special Marine Warning	LCH		38 min
Jul 3, 4:45 PM CDT	Special Weather Statement	LCH	Tyler	45 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2018 Severe Thunderstorm Warnings in Texas, 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.