Alert archive / Louisiana / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 5, NWS Shreveport, LA

January 9, 2022Caldwell Parish, LaSalle Parish, Louisiana

NWS Shreveport, LA issued this severe thunderstorm warning at Jan 9, 2022, 7:16 AM CST for Caldwell Parish, LaSalle Parish, Louisiana. It was in force for 29 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: Jan 9, 2022, 7:16 AM CST (13:16 UTC)
Expired: Jan 9, 2022, 7:45 AM CST
In force: 29 min
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 60.0 mph

Counties Caldwell Parish, LA, LaSalle Parish, LA

The radar

The Ft Polk radar (KPOE), 113 km from the middle of the area, began a volume at 13:19 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

Jackson, MS (KJAN), launched 12:00Z, 1.3 hours before the alert went out and 200 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: 423 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 516 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 316 m²/s²
0-3 km storm-relative helicity: 452 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 3.2

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 Shreveport, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jan 9, 6:08 AM CST, 1 hour 8 minutes earlier.

Area forecast discussion, Jan 9, 6:08 AM CST, 1 hour 8 minutes before

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Hazardous weather outlook, Jan 9, 6:58 AM CST, 18 minutes before

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In the hours before

Special weather statement, Jan 9, 3:01 AM CST, 4 hours 15 minutes before

Special Weather Statement
National Weather Service Shreveport LA
301 AM CST Sun Jan 9 2022

LAZ010-011-090945-
De Soto LA-Red River LA-
301 AM CST Sun Jan 9 2022

...A strong thunderstorm will impact portions of central De Soto and
northwestern Red River Parishes through 345 AM CST...

At 300 AM CST, Doppler radar was tracking a strong thunderstorm 8
miles southwest of Mansfield, moving northeast at 30 mph.

HAZARD...Winds in excess of 40 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Mansfield, South Mansfield, Stanley, Carmel and Grand Bayou.

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.

&&

LAT...LON 3196 9392 3224 9362 3224 9360 3205 9343
      3189 9386
TIME...MOT...LOC 0900Z 232DEG 27KT 3197 9383

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...40 MPH

13

Special weather statement, Jan 9, 3:02 AM CST, 4 hours 14 minutes before

Special Weather Statement
National Weather Service Shreveport LA
302 AM CST Sun Jan 9 2022

TXZ165>167-091000-
Sabine TX-Angelina TX-San Augustine TX-
302 AM CST Sun Jan 9 2022

...A strong thunderstorm will impact portions of eastern Angelina,
southeastern San Augustine and southern Sabine Counties through 400
AM CST...

At 302 AM CST, Doppler radar was tracking a strong thunderstorm near
Ebenezer, moving northeast at 25 mph.

HAZARD...Wind gusts up to 50 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Milam, Hemphill, Pineland, McElroy, Fairmount and Yellowpine.

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.

&&

LAT...LON 3112 9425 3145 9384 3120 9364 3117 9374
      3116 9391 3114 9404 3112 9404 3111 9406
      3108 9422
TIME...MOT...LOC 0902Z 237DEG 22KT 3109 9416

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH

13

Local storm report, Jan 9, 5:46 AM CST, 1 hour 30 minutes before

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Local storm report, Jan 9, 6:04 AM CST, 1 hour 12 minutes before

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Local storm report, Jan 9, 6:33 AM CST, 43 minutes before

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Local storm report, Jan 9, 6:41 AM CST, 35 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 8, 6:33 PM CST	Special Weather Statement	SHV	San Augustine	27 min
Jan 8, 11:42 PM CST	Special Weather Statement	SHV	San Augustine	48 min
Jan 9, 12:26 AM CST	Special Weather Statement	SHV	Sabine	64 min
Jan 9, 1:23 AM CST	Special Weather Statement	SHV	Sabine	52 min
Jan 9, 2:46 AM CST	Flash Flood Warning	SHV	Angelina, Sabine, San Augustine	3 hr
Jan 9, 3:02 AM CST	Special Weather Statement	SHV	Sabine	58 min
Jan 9, 3:34 AM CST	Tornado Warning	SHV	Sabine, San Augustine	26 min
Jan 9, 3:57 AM CST	Tornado Warning	SHV	Sabine	48 min
Jan 9, 4:27 AM CST	Tornado Warning	SHV	Sabine	48 min
Jan 9, 3:01 AM CST	Special Weather Statement	SHV	De Soto	44 min
Jan 9, 5:11 AM CST	Tornado Warning Tornado observed	SHV	Natchitoches, Sabine	49 min
Jan 9, 5:52 AM CST	Severe Thunderstorm Warning	SHV	Grant, Natchitoches	38 min
Jan 9, 6:41 AM CST	Severe Thunderstorm Warning	SHV	Caldwell, Grant, LaSalle, Winn	49 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2022 Every severe thunderstorm warning in 2022

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.