Alert archive / Louisiana / Special Weather Statements in 2021

Special Weather Statement, NWS Lake Charles, LA

March 17, 2021Cameron Parish, Louisiana

NWS Lake Charles, LA issued this special weather statement at Mar 17, 2021, 12:39 PM CDT for Cameron Parish, Louisiana. It was in force for 51 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: Mar 17, 2021, 12:39 PM CDT (17:39 UTC)
Expired: Mar 17, 2021, 1:30 PM CDT
In force: 51 min
Issued by: NWS Lake Charles, LA

County Cameron Parish, LA

The radar

The Lake Charles radar (KLCH), 31 km from the middle of the area, began a volume at 17:43 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

Lake Charles Mun, LA (KLCH), launched 12:00Z, 5.7 hours before the alert went out and 31 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: 458 J/kg
Mixed-layer CIN: -397 J/kg
Mixed-layer LCL: 1132 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 158 m²/s²
0-3 km storm-relative helicity: 247 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.2

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Mar 17, 12:01 PM CDT, 38 minutes earlier.

Area forecast discussion, Mar 17, 12:01 PM CDT, 38 minutes before

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Hazardous weather outlook, Mar 16, 3:26 PM CDT, 21 hours 13 minutes before

Hazardous Weather Outlook
National Weather Service Lake Charles LA
326 PM CDT Tue Mar 16 2021

LAZ027>033-041>045-052>055-073-074-TXZ180-201-215-216-259>262-172030-
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-
326 PM CDT Tue Mar 16 2021

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.

Showers and a few thunderstorms are possible. Otherwise, hazardous
weather is not anticipated.

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

A robust cold front is expected to move through the region on
Wednesday. Showers and thunderstorms are expected ahead of and along
the front, and strong to severe storms are possible. Tornadoes,
hail, and damaging wind gusts are all potential hazards.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

GMZ430-432-435-450-452-455-470-472-475-172030-
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-
326 PM CDT Tue Mar 16 2021

This Hazardous Weather Outlook is for the Gulf of Mexico and the
coastal lakes and bays of the Gulf of Mexico.

.DAY ONE...This afternoon and tonight.

No hazardous weather is expected at this time.

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

Light onshore flow becomes more moderate by early Wednesday ahead of
a cold frontal boundary advancing into the region. Showers and
thunderstorms will be possible with this from Wednesday into early
Thursday. Moderate offshore flow develops by Thursday behind this
cold front.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Mar 17, 11:34 AM CDT, 1 hour 5 minutes before

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Special weather statement, Mar 17, 12:17 PM CDT, 22 minutes before

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Special weather statement, Mar 17, 12:21 PM CDT, 18 minutes before

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Special weather statement, Mar 17, 12:39 PM CDT, 0 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
Mar 17, 2:53 AM CDT	Wind Advisory	LCH	Avoyelles, Cameron, Evangeline, Lafayette, Saint Landry, Saint Martin	16 hr
Mar 17, 2:55 AM CDT	Marine Dense Fog Advisory	LCH		11 hr
Mar 17, 2:55 AM CDT	Small Craft Advisory	LCH		52 hr
Mar 17, 12:48 PM CDT	Special Weather Statement	LCH	Calcasieu	42 min
Mar 17, 1:24 PM CDT	Severe Thunderstorm Warning	LCH	Acadia, Cameron, Jefferson Davis, Vermilion	36 min
Mar 17, 1:33 PM CDT	Special Marine Warning	LCH		57 min
Mar 17, 1:40 PM CDT	Special Weather Statement	LCH	Allen	35 min
Mar 17, 1:46 PM CDT	Special Weather Statement	LCH	Vernon	29 min
Mar 17, 2:01 PM CDT	Special Weather Statement	LCH	Acadia, Jefferson Davis	44 min
Mar 17, 2:30 PM CDT	Special Marine Warning	LCH		60 min
Mar 17, 2:32 PM CDT	Special Weather Statement	LCH	Beauregard	43 min
Mar 17, 2:41 PM CDT	Small Craft Advisory	LCH		40 hr
Mar 17, 3:03 PM CDT	Special Weather Statement	LCH	Vermilion	42 min
Mar 17, 3:28 PM CDT	Special Marine Warning	LCH		62 min
Mar 17, 3:42 PM CDT	Special Weather Statement	LCH	Rapides	48 min
Mar 17, 3:44 PM CDT	Special Weather Statement	LCH	Saint Martin	46 min
Mar 17, 3:53 PM CDT	Severe Thunderstorm Warning	LCH	Iberia, Saint Martin, St. Mary	52 min
Mar 17, 3:58 PM CDT	Severe Thunderstorm Warning	LCH	Cameron, Vermilion	62 min
Mar 17, 4:19 PM CDT	Severe Thunderstorm Warning	LCH	Acadia, Cameron, Jefferson Davis, Vermilion	44 min
Mar 17, 4:35 PM CDT	Special Marine Warning	LCH		55 min
Mar 17, 4:49 PM CDT	Special Weather Statement	LCH	Saint Martin	41 min
Mar 17, 5:00 PM CDT	Special Weather Statement	LCH	Acadia, Saint Landry	30 min
Mar 17, 5:31 PM CDT	Special Marine Warning	LCH		89 min
Mar 17, 6:08 PM CDT	Special Weather Statement	LCH	Iberia, St. Mary	97 min
Mar 17, 6:21 PM CDT	Severe Thunderstorm Warning	LCH	Iberia, Saint Martin, St. Mary	39 min
Mar 17, 11:34 AM CDT	Special Weather Statement	LCH	Tyler	11 min
Mar 17, 12:17 PM CDT	Special Weather Statement	LCH	Orange	28 min
Mar 17, 12:21 PM CDT	Special Weather Statement	LCH	Hardin	39 min
Mar 17, 12:56 PM CDT	Special Weather Statement	LCH	Jasper, Newton	34 min
Mar 17, 1:22 PM CDT	Special Weather Statement	LCH	Newton	23 min
Mar 17, 1:35 PM CDT	Special Weather Statement	LCH	Orange	25 min
Mar 17, 2:00 PM CDT	Special Weather Statement	LCH	Orange	30 min

Nearby

Special Weather Statements in Louisiana, 2021 Every special weather statement in 2021

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.