Alert archive / Louisiana / Special Weather Statements in 2021

Special Weather Statement, NWS Lake Charles, LA

July 12, 2021Avoyelles Parish, Evangeline Parish, Louisiana

NWS Lake Charles, LA issued this special weather statement at Jul 12, 2021, 7:32 AM CDT for Avoyelles Parish, Evangeline Parish, Louisiana. It was in force for 28 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 12, 2021, 7:32 AM CDT (12:32 UTC)
Expired: Jul 12, 2021, 8:00 AM CDT
In force: 28 min
Issued by: NWS Lake Charles, LA

Counties Avoyelles Parish, LA, Evangeline Parish, LA

The radar

The Ft Polk radar (KPOE), 96 km from the middle of the area, began a volume at 12:31 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, 0.5 hours before the alert went out and 159 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: 2909 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 749 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 22 m²/s²
0-3 km storm-relative helicity: 86 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Jul 12, 7:02 AM CDT, 30 minutes earlier.

Area forecast discussion, Jul 12, 7:02 AM CDT, 30 minutes before

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Hazardous weather outlook, Jul 12, 7:06 AM CDT, 26 minutes before

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In the hours before

Special weather statement, Jul 12, 6:25 AM CDT, 1 hour 7 minutes before

Special Weather Statement
National Weather Service Lake Charles LA
625 AM CDT Mon Jul 12 2021

LAZ028-029-121200-
Avoyelles LA-Rapides LA-
625 AM CDT Mon Jul 12 2021

...SPECIAL WEATHER STATEMENT...

At 624 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Deville to near Alexandria. Movement was
east at 45 mph.

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

Locations impacted include...
Alexandria, Pineville, Marksville, Effie, Ball, Lecompte, Deville,
Libuse, Echo, Brouillette, Esler Regional Airport, Kingsville,
Poland, Kolin, Centerpoint, Ruby, Holloway, Paradise and Woodworth.

LAT...LON 3147 9216 3141 9215 3136 9208 3135 9207
      3134 9209 3133 9208 3134 9203 3132 9200
      3130 9200 3130 9201 3128 9202 3127 9199
      3126 9200 3125 9199 3124 9200 3123 9199
      3107 9215 3111 9263 3145 9237 3148 9221
TIME...MOT...LOC 1124Z 268DEG 41KT 3143 9213 3121 9244

87

Special weather statement, Jul 12, 6:47 AM CDT, 45 minutes before

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Special weather statement, Jul 12, 6:48 AM CDT, 44 minutes before

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Special weather statement, Jul 12, 7:00 AM CDT, 32 minutes before

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Special weather statement, Jul 12, 7:32 AM 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
Jul 12, 6:25 AM CDT	Special Weather Statement	LCH	Rapides	35 min
Jul 12, 6:47 AM CDT	Special Weather Statement	LCH	Rapides	13 min
Jul 12, 6:48 AM CDT	Special Weather Statement	LCH	Evangeline	12 min
Jul 12, 7:00 AM CDT	Special Weather Statement	LCH	Avoyelles, Evangeline	30 min
Jul 12, 5:49 PM CDT	Special Weather Statement	LCH	Rapides	26 min
Jul 12, 5:52 PM CDT	Special Marine Warning	LCH		23 min
Jul 12, 5:59 PM CDT	Special Weather Statement	LCH	Allen, Calcasieu	46 min
Jul 12, 4:44 PM CDT	Special Weather Statement	LCH	Orange	31 min
Jul 12, 5:24 PM CDT	Special Weather Statement	LCH	Orange	36 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.