Alert archive / Louisiana / Special Weather Statements in 2021

Special Weather Statement, NWS Jackson, MS

October 27, 2021Concordia Parish, Louisiana

NWS Jackson, MS issued this special weather statement at Oct 27, 2021, 2:11 PM CDT for Concordia Parish, Louisiana. It was in force for 34 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: Oct 27, 2021, 2:11 PM CDT (19:11 UTC)
Expired: Oct 27, 2021, 2:45 PM CDT
In force: 34 min
Issued by: NWS Jackson, MS
Hail: 0.00 in
Wind: 50

County Concordia Parish, LA

The radar

The Ft Polk radar (KPOE), 118 km from the middle of the area, began a volume at 19:12 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, 7.2 hours before the alert went out and 190 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: 1422 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 604 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 160 m²/s²
0-3 km storm-relative helicity: 255 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 7.1

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 Jackson, MS wrote its last area forecast discussion before this special weather statement went out at Oct 27, 1:30 PM CDT, 41 minutes earlier.

Area forecast discussion, Oct 27, 1:30 PM CDT, 41 minutes before

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Hazardous weather outlook, Oct 27, 2:54 AM CDT, 11 hours 17 minutes before

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In the hours before

Special weather statement, Oct 27, 2:11 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Jackson MS
211 PM CDT Wed Oct 27 2021

LAZ026-271945-
Concordia LA-
211 PM CDT Wed Oct 27 2021

...A strong thunderstorm will impact portions of west central
Concordia Parish through 245 PM CDT...

At 210 PM CDT, Doppler radar was tracking a strong thunderstorm near
Acme, or 11 miles northeast of Bordelonville, moving north at 35 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

This strong thunderstorm will be near...
  Slocum around 220 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

A Tornado Watch remains in effect until 1000 PM CDT for northeastern
Louisiana...and southwestern Mississippi.

&&

LAT...LON 3144 9172 3137 9156 3120 9169 3121 9171
      3120 9172 3120 9174 3122 9176 3122 9178
      3124 9181 3125 9181 3126 9183
TIME...MOT...LOC 1910Z 199DEG 31KT 3122 9176

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

DC

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 27, 2:30 PM CDT	Severe Thunderstorm Warning	JAN	Adams	75 min
Oct 27, 3:38 PM CDT	Severe Thunderstorm Warning	JAN	Adams, Franklin, Jefferson	67 min
Oct 27, 4:16 PM CDT	Severe Thunderstorm Warning	JAN	Claiborne	44 min
Oct 27, 4:45 PM CDT	Severe Thunderstorm Warning	JAN	Lincoln	45 min
Oct 27, 5:16 PM CDT	Special Weather Statement	JAN	Copiah, Hinds, Jefferson Davis, Lawrence, Rankin, Simpson	74 min
Oct 27, 6:08 PM CDT	Special Weather Statement	JAN	Forrest, Lamar, Marion	67 min
Oct 27, 2:52 PM CDT	Tornado Warning Tornado observed	JAN	Concordia	16 min
Oct 27, 3:01 PM CDT	Special Weather Statement	JAN	Franklin, Morehouse, Richland	44 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.