Alert archive / Texas / Wind Advisories in 2021

Wind Advisory 1, NWS Shreveport, LA

January 14, 20214 states

NWS Shreveport, LA issued this wind advisory at Jan 14, 2021, 9:11 PM CST for 4 states. It took effect at Jan 15, 2021, 10:00 AM CST. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Jan 14, 2021, 9:11 PM CST (03:11 UTC)
In effect from
Jan 15, 2021, 10:00 AM CST
Expired
Jan 15, 2021, 6:00 PM CST
In force
8 hr
Issued by
NWS Shreveport, LA
All 28 counties

Columbia County, AR, Hempstead County, AR, Howard County, AR, Lafayette County, AR, Little River County, AR, Miller County, AR, Nevada County, AR, Sevier County, AR, Bossier Parish, LA, Caddo Parish, LA, Webster Parish, LA, McCurtain County, OK, Bowie County, TX, Camp County, TX, Cass County, TX, Cherokee County, TX, Franklin County, TX, Gregg County, TX, Harrison County, TX, Marion County, TX, Morris County, TX, Panola County, TX, Red River County, TX, Rusk County, TX, Smith County, TX, Titus County, TX, Upshur County, TX, Wood County, TX

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 3.2 hours before the alert went out and 87 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-pSkew-T log-p diagram, Shreveport, LA at 00:00Z on 2021-01-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Shreveport, LA at 00:00Z on 2021-01-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -93 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1787 m above ground
0-6 km bulk shear
75 kt
0-1 km storm-relative helicity
-93 m²/s²
0-3 km storm-relative helicity
-136 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

807 
WWUS74 KSHV 150311
NPWSHV

URGENT - WEATHER MESSAGE
National Weather Service Shreveport LA
911 PM CST Thu Jan 14 2021

ARZ050-051-059>061-070>072-LAZ001>003-OKZ077-TXZ096-097-108>112-
124>126-136>138-149>151-151215-
/O.NEW.KSHV.WI.Y.0001.210115T1600Z-210116T0000Z/
Sevier-Howard-Little River-Hempstead-Nevada-Miller-Lafayette-
Columbia-Caddo-Bossier-Webster-McCurtain-Red River-Bowie-Franklin-
Titus-Camp-Morris-Cass-Wood-Upshur-Marion-Smith-Gregg-Harrison-
Cherokee-Rusk-Panola-
Including the cities of De Queen, Nashville, Mineral Springs, 
Dierks, Ashdown, Hope, Prescott, Texarkana, Stamps, Lewisville, 
Bradley, Magnolia, Shreveport, Bossier City, Minden, Springhill, 
Idabel, Broken Bow, Clarksville, Bogata, Mount Vernon, 
Mount Pleasant, Pittsburg, Daingerfield, Lone Star, Naples, 
Omaha, Atlanta, Linden, Hughes Springs, Queen City, Mineola, 
Winnsboro, Quitman, Hawkins, Gilmer, Big Sandy, Jefferson, Tyler,
Longview, Marshall, Jacksonville, Rusk, Henderson, and Carthage
911 PM CST Thu Jan 14 2021

...WIND ADVISORY IN EFFECT FROM 10 AM TO 6 PM CST FRIDAY...

* WHAT...West winds 20 to 30 mph with gusts up to 40 mph 
  expected.

* WHERE...Portions of southwest Arkansas, northwest Louisiana,
  northeast Texas and southeast Oklahoma.

* WHEN...From 10 AM to 6 PM CST Friday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.
  Wing driven waves will be dangerous in open waters. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects. Boaters on area lakes 
will be subject to even higher gusts away from partial shelter
near northern most lakes shores.  

&&

$$

ARZ073-LAZ004>006-010>014-017>022-TXZ152-153-165>167-151215-
/O.NEW.KSHV.LW.Y.0001.210115T1600Z-210116T0000Z/
Union-Claiborne-Lincoln-De Soto-Red River-Bienville-Jackson-
Ouachita-Sabine-Natchitoches-Winn-Grant-Caldwell-La Salle-
Nacogdoches-Shelby-Angelina-San Augustine-
Including the cities of El Dorado, Homer, Haynesville, Ruston, 
Farmerville, Bernice, Mansfield, Stonewall, Logansport, 
Coushatta, Martin, Arcadia, Ringgold, Gibsland, Jonesboro, 
Monroe, Many, Zwolle, Pleasant Hill, Natchitoches, Winnfield, 
Colfax, Montgomery, Dry Prong, Clarks, Grayson, Columbia, Jena, 
Midway, Olla, Nacogdoches, Center, Lufkin, San Augustine, 
Hemphill, and Pineland
911 PM CST Thu Jan 14 2021

...LAKE WIND ADVISORY IN EFFECT FROM 10 AM TO 6 PM CST FRIDAY...

* WHAT...West winds 10 to 20 mph with gusts up to 30 mph 
  expected.

* WHERE...Portions of south central Arkansas, north central and
  northwest Louisiana and deep east Texas.

* WHEN...From 10 AM to 6 PM CST Friday.

* IMPACTS...Strong winds and rough waves on area lakes will 
  create hazardous conditions for small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Boaters on area lakes should use extra caution since strong winds
and rough waves can overturn small craft.

&&

$$

24
1 follow-up statement
627 
WWUS74 KSHV 150951
NPWSHV

URGENT - WEATHER MESSAGE
National Weather Service Shreveport LA
351 AM CST Fri Jan 15 2021

ARZ050-051-059>061-070>072-LAZ001>003-OKZ077-TXZ096-097-108>112-
124>126-136>138-149>151-152130-
/O.CON.KSHV.WI.Y.0001.210115T1600Z-210116T0000Z/
Sevier-Howard-Little River-Hempstead-Nevada-Miller-Lafayette-
Columbia-Caddo-Bossier-Webster-McCurtain-Red River-Bowie-Franklin-
Titus-Camp-Morris-Cass-Wood-Upshur-Marion-Smith-Gregg-Harrison-
Cherokee-Rusk-Panola-
Including the cities of De Queen, Nashville, Mineral Springs, 
Dierks, Ashdown, Hope, Prescott, Texarkana, Stamps, Lewisville, 
Bradley, Magnolia, Shreveport, Bossier City, Minden, Springhill, 
Idabel, Broken Bow, Clarksville, Bogata, Mount Vernon, 
Mount Pleasant, Pittsburg, Daingerfield, Lone Star, Naples, 
Omaha, Atlanta, Linden, Hughes Springs, Queen City, Mineola, 
Winnsboro, Quitman, Hawkins, Gilmer, Big Sandy, Jefferson, Tyler,
Longview, Marshall, Jacksonville, Rusk, Henderson, and Carthage
351 AM CST Fri Jan 15 2021

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
6 PM CST THIS EVENING...

* WHAT...West winds 20 to 30 mph with gusts up to 40 mph 
  expected.

* WHERE...Portions of southwest Arkansas, northwest Louisiana, 
  northeast Texas and southeast Oklahoma.

* WHEN...From 10 AM to 6 PM CST Friday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.
  Wind driven waves will be dangerous in open waters.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

ARZ073-LAZ004>006-010>014-017>022-TXZ152-153-165>167-152130-
/O.CON.KSHV.LW.Y.0001.210115T1600Z-210116T0000Z/
Union-Claiborne-Lincoln-De Soto-Red River-Bienville-Jackson-
Ouachita-Sabine-Natchitoches-Winn-Grant-Caldwell-La Salle-
Nacogdoches-Shelby-Angelina-San Augustine-
Including the cities of El Dorado, Homer, Haynesville, Ruston, 
Farmerville, Bernice, Mansfield, Stonewall, Logansport, 
Coushatta, Martin, Arcadia, Ringgold, Gibsland, Jonesboro, 
Monroe, Many, Zwolle, Pleasant Hill, Natchitoches, Winnfield, 
Colfax, Montgomery, Dry Prong, Clarks, Grayson, Columbia, Jena, 
Midway, Olla, Nacogdoches, Center, Lufkin, San Augustine, 
Hemphill, and Pineland
351 AM CST Fri Jan 15 2021

...LAKE WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING
TO 6 PM CST THIS EVENING...

* WHAT...West winds 10 to 20 mph with gusts up to 30 mph 
  expected.

* WHERE...Portions of south central Arkansas, north central and 
  northwest Louisiana and deep east Texas.

* WHEN...From 10 AM to 6 PM CST Friday.

* IMPACTS...Strong winds and rough waves on area lakes will 
  create hazardous conditions for small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Boaters on area lakes should use extra caution since strong winds
and rough waves can overturn small craft.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 14, 7:52 PM CSTRiver Flood WarningSHVAngelina, Houston, Polk, Trinity, Tyler21 days
Jan 14, 9:11 PM CSTLake Wind AdvisorySHVAngelina, Nacogdoches, Sabine, San Augustine, Shelby21 hr

Nearby

Wind Advisories in Texas, 2021Wind Advisories in Arkansas, 2021Wind Advisories in Louisiana, 2021Every wind advisory 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.