Alert archive / Louisiana / Wind Chill Advisories in 2021
Wind Chill Advisory 1, NWS New Orleans, LA
NWS New Orleans, LA issued this wind chill advisory at Feb 14, 2021, 7:17 PM CST for 13 parishes in Louisiana; 5 counties in Mississippi. It took effect at Feb 15, 2021, 3:56 PM CST. It was in force for 20 hr.
The area
The counties it named.
The facts
- Issued
- Feb 14, 2021, 7:17 PM CST (01:17 UTC)
- In effect from
- Feb 15, 2021, 3:56 PM CST
- Expired
- Feb 16, 2021, 12:00 PM CST
- In force
- 20 hr
- Issued by
- NWS New Orleans, LA
Counties Assumption Parish, LA, East Baton Rouge Parish, LA, East Feliciana Parish, LA, Iberville Parish, LA, Pointe Coupee Parish, LA, Saint Bernard Parish, LA, Saint Helena Parish, LA, Saint James Parish, LA, Saint John the Baptist Parish, LA, Tangipahoa Parish, LA, Washington Parish, LA, West Baton Rouge Parish, LA, West Feliciana Parish, LA, Amite County, MS, Pearl River County, MS, Pike County, MS, Walthall County, MS, Wilkinson County, MS
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 1.3 hours before the alert went out and 108 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 578 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 90 m²/s²
- 0-3 km storm-relative helicity
- 198 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
814 WWUS44 KLIX 150117 WSWLIX URGENT - WINTER WEATHER MESSAGE National Weather Service New Orleans LA 717 PM CST Sun Feb 14 2021 ...Significant Winter Weather Event Expected Late Tonight through Monday... .A shallow but very cold airmass is currently over much of south Mississippi and southeast Louisiana. An upper level disturbance will bring abundant moisture into the area late tonight and Monday. Temperatures aloft are warm, and precipitation that develops tonight will be rain aloft, but as it reaches the cold air near the surface, it will transition to freezing rain or possibly sleet. Heavy freezing rain or sleet is expected across the warning area during the day Monday before ending from west to east in the afternoon hours. The expected precipitation amounts, especially of ice, are likely to produce significant impacts. After the precipitation ends, even colder air will arrive Monday night, producing wind chill values in the single digits and teens overnight Monday night and Tuesday morning. LAZ034>037-039-046>050-056-057-071-072-MSZ068>071-151215- /O.UPG.KLIX.WC.A.0001.210216T0000Z-210216T1600Z/ /O.NEW.KLIX.WC.Y.0001.210216T0000Z-210216T1800Z/ /O.CON.KLIX.WS.W.0001.210215T0600Z-210216T0000Z/ Pointe Coupee-West Feliciana-East Feliciana-St. Helena-Washington- Iberville-West Baton Rouge-East Baton Rouge-Ascension-Livingston- Assumption-St. James-Northern Tangipahoa-Southern Tangipahoa- Wilkinson-Amite-Pike-Walthall- Including the cities of New Roads, Lettsworth, Livonia, Spillman, St. Francisville, Wakefield, Jackson, Clinton, Felps, Darlington, Easleyville, Greensburg, Montpelier, Bogalusa, Enon, Franklinton, Bayou Sorrel, Plaquemine, White Castle, Port Allen, Addis, Brusly, Baton Rouge, Gonzales, Donaldsonville, Prairieville, Denham Springs, Watson, Walker, Pierre Part, Labadieville, Paincourtville, Convent, Lutcher, Gramercy, Amite, Kentwood, Roseland, Wilmer, Hammond, Robert, Ponchatoula, Centreville, Dolorosa, Fort Adams, Woodville, Gillsberg, Gloster, Smithdale, Liberty, McComb, Dexter, Salem, and Tylertown 717 PM CST Sun Feb 14 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM CST MONDAY... ...WIND CHILL ADVISORY IN EFFECT FROM 6 PM MONDAY TO NOON CST TUESDAY... * WHAT...For the Winter Storm Warning, significant icing expected. Total ice accumulations of one tenth to four tenths of an inch. For the Wind Chill Advisory, dangerously cold wind chills expected. Wind chills as low as 5 above zero. * WHERE...All of Southwest Mississippi and portions of Southeast Louisiana generally north and west of a Bogalusa to Hammond to Pierre Part line. * WHEN...For the Winter Storm Warning, from midnight tonight to 6 PM CST Monday. For the Wind Chill Advisory, from 6 PM Monday to noon CST Tuesday. * IMPACTS...Power outages and tree damage are likely due to the ice. Travel could be nearly impossible. The hazardous conditions could impact the morning or evening commute. The dangerously cold wind chills could result in hypothermia or frostbite if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Prepare for possible power outages. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ LAZ040-058>060-065-MSZ077-151215- /O.UPG.KLIX.WC.A.0001.210216T0000Z-210216T1600Z/ /O.NEW.KLIX.WC.Y.0001.210216T0000Z-210216T1800Z/ /O.CON.KLIX.WW.Y.0001.210215T1200Z-210216T0000Z/ St. Tammany-St. John The Baptist-Upper Lafourche-St. Charles- Upper Terrebonne-Pearl River- Including the cities of Slidell, Mandeville, Covington, Lacombe, Laplace, Reserve, Thibodaux, Raceland, Larose, Destrehan, Norco, Houma, Bayou Cane, Crossroads, McNeil, Poplarville, and Picayune 717 PM CST Sun Feb 14 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 AM TO 6 PM CST MONDAY... ...WIND CHILL ADVISORY IN EFFECT FROM 6 PM MONDAY TO NOON CST TUESDAY... * WHAT...For the Winter Weather Advisory, freezing rain expected. Total ice accumulations of around one tenth of an inch. For the Wind Chill Advisory, very cold wind chills expected. Wind chills as low as 10 above zero. * WHERE...Portions of southern Mississippi and southeast Louisiana generally north and west of a Houma to Lacombe to Poplarville line, but south and east of a Bogalusa to Hammond to Pierre Part line. * WHEN...For the Winter Weather Advisory, from 6 AM to 6 PM CST Monday. For the Wind Chill Advisory, from 6 PM Monday to noon CST Tuesday. * IMPACTS...Difficult travel conditions are possible. The hazardous conditions could impact the morning or evening commute. The dangerously cold wind chills could result in hypothermia or frostbite if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ LAZ061>064-066>070-MSZ080>082-151215- /O.UPG.KLIX.WC.A.0001.210216T0000Z-210216T1600Z/ /O.NEW.KLIX.WC.Y.0001.210216T0000Z-210216T1800Z/ Upper Jefferson-Orleans-Upper Plaquemines-Upper St. Bernard- Lower Terrebonne-Lower Lafourche-Lower Jefferson- Lower Plaquemines-Lower St. Bernard-Hancock-Harrison-Jackson- Including the cities of Metairie, Kenner, East New Orleans, New Orleans, Belle Chasse, Chalmette, Violet, Chauvin, Cocodrie, Dulac, Montegut, Galliano, Cut Off, Golden Meadow, Leeville, Buras, Pointe A La Hache, Port Sulphur, Boothville, Venice, Empire, Myrtle Grove, Yscloskey, Bay St. Louis, Waveland, Diamondhead, Gulfport, Pascagoula, Ocean Springs, Moss Point, Gautier, and St. Martin 717 PM CST Sun Feb 14 2021 ...WIND CHILL ADVISORY IN EFFECT FROM 6 PM MONDAY TO NOON CST TUESDAY... * WHAT...Very cold wind chills expected. Wind chills as low as 10 above zero. * WHERE...All of coastal Mississippi and coastal Louisiana including portions of metro New Orleans south of Lake Pontchartrain. * WHEN...From 6 PM Monday to noon CST Tuesday. * IMPACTS...The dangerously cold wind chills could result in hypothermia or frostbite if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$
5 follow-up statements
310 WWUS44 KLIX 151033 WSWLIX URGENT - WINTER WEATHER MESSAGE National Weather Service New Orleans LA 433 AM CST Mon Feb 15 2021 ...Significant Winter Weather Event Will Continue Today... .A shallow but very cold airmass is currently over much of south Mississippi and southeast Louisiana. Low pressure will move across the northern Gulf of Mexico today toward the Florida Panhandle. Temperatures aloft are warm, and precipitation that develops tonight will be rain aloft, but as it reaches the cold air near the surface, it will transition to freezing rain or possibly sleet. Heavy freezing rain or sleet is expected across the warning area during the day today before ending from west to east in the afternoon hours. The expected precipitation amounts, especially of ice, are likely to produce significant impacts. After the precipitation ends, even colder air will arrive tonight, producing wind chill values in the single digits and teens overnight into Tuesday morning. LAZ034>037-039-046>050-056-057-071-072-MSZ068>071-151845- /O.CON.KLIX.WS.W.0001.000000T0000Z-210216T0000Z/ /O.CON.KLIX.WC.Y.0001.210216T0000Z-210216T1800Z/ Pointe Coupee-West Feliciana-East Feliciana-St. Helena-Washington- Iberville-West Baton Rouge-East Baton Rouge-Ascension-Livingston- Assumption-St. James-Northern Tangipahoa-Southern Tangipahoa- Wilkinson-Amite-Pike-Walthall- Including the cities of New Roads, Lettsworth, Livonia, Spillman, St. Francisville, Wakefield, Jackson, Clinton, Felps, Darlington, Easleyville, Greensburg, Montpelier, Bogalusa, Enon, Franklinton, Bayou Sorrel, Plaquemine, White Castle, Port Allen, Addis, Brusly, Baton Rouge, Gonzales, Donaldsonville, Prairieville, Denham Springs, Watson, Walker, Pierre Part, Labadieville, Paincourtville, Convent, Lutcher, Gramercy, Amite, Kentwood, Roseland, Wilmer, Hammond, Robert, Ponchatoula, Centreville, Dolorosa, Fort Adams, Woodville, Gillsberg, Gloster, Smithdale, Liberty, McComb, Dexter, Salem, and Tylertown 433 AM CST Mon Feb 15 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING... ...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO NOON CST TUESDAY... * WHAT...For the Winter Storm Warning, significant icing expected. Total ice accumulations of one tenth to four tenths of an inch. For the Wind Chill Advisory, dangerously cold wind chills expected. Wind chills as low as 5 above zero. * WHERE...All of Southwest Mississippi and portions of Southeast Louisiana generally north and west of a Bogalusa to Hammond to Pierre Part line. * WHEN...For the Winter Storm Warning, until 6 PM CST today. For the Wind Chill Advisory, from 6 PM tonight to noon CST Tuesday. * IMPACTS...Power outages and tree damage are likely due to the ice. Travel could be nearly impossible. The hazardous conditions could impact the morning or evening commute. The dangerously cold wind chills could result in hypothermia or frostbite if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Prepare for possible power outages. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ LAZ040-058>060-065-MSZ077-151845- /O.CON.KLIX.WW.Y.0001.210215T1200Z-210216T0000Z/ /O.CON.KLIX.WC.Y.0001.210216T0000Z-210216T1800Z/ St. Tammany-St. John The Baptist-Upper Lafourche-St. Charles- Upper Terrebonne-Pearl River- Including the cities of Slidell, Mandeville, Covington, Lacombe, Laplace, Reserve, Thibodaux, Raceland, Larose, Destrehan, Norco, Houma, Bayou Cane, Crossroads, McNeil, Poplarville, and Picayune 433 AM CST Mon Feb 15 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING... ...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO NOON CST TUESDAY... * WHAT...For the Winter Weather Advisory, freezing rain expected. Total ice accumulations of around one tenth of an inch. For the Wind Chill Advisory, very cold wind chills expected. Wind chills as low as 10 above zero. * WHERE...Portions of southern Mississippi and southeast Louisiana generally north and west of a Houma to Lacombe to Poplarville line, but south and east of a Bogalusa to Hammond to Pierre Part line. * WHEN...For the Winter Weather Advisory, until 6 PM CST today. For the Wind Chill Advisory, from 6 PM today to noon CST Tuesday. * IMPACTS...Difficult travel conditions are possible. The hazardous conditions could impact the morning or evening commute. The dangerously cold wind chills could result in hypothermia or frostbite if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ LAZ061>064-066>070-MSZ080>082-151845- /O.CON.KLIX.WC.Y.0001.210216T0000Z-210216T1800Z/ Upper Jefferson-Orleans-Upper Plaquemines-Upper St. Bernard- Lower Terrebonne-Lower Lafourche-Lower Jefferson- Lower Plaquemines-Lower St. Bernard-Hancock-Harrison-Jackson- Including the cities of Metairie, Kenner, East New Orleans, New Orleans, Belle Chasse, Chalmette, Violet, Chauvin, Cocodrie, Dulac, Montegut, Galliano, Cut Off, Golden Meadow, Leeville, Buras, Pointe A La Hache, Port Sulphur, Boothville, Venice, Empire, Myrtle Grove, Yscloskey, Bay St. Louis, Waveland, Diamondhead, Gulfport, Pascagoula, Ocean Springs, Moss Point, Gautier, and St. Martin 433 AM CST Mon Feb 15 2021 ...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO NOON CST TUESDAY... * WHAT...Very cold wind chills expected. Wind chills as low as 10 above zero. * WHERE...All of coastal Mississippi and coastal Louisiana including portions of metro New Orleans south of Lake Pontchartrain. * WHEN...From 6 PM tonight to noon CST Tuesday. * IMPACTS...The dangerously cold wind chills could result in hypothermia or frostbite if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$
064 WWUS44 KLIX 151658 WSWLIX URGENT - WINTER WEATHER MESSAGE National Weather Service New Orleans LA 1058 AM CST Mon Feb 15 2021 ...Significant Winter Weather Event Continues... .Precipitation has largely ended or will be ending by mid-day across the winter storm warning and winter weather advisory areas. Ice accumulations of between one tenth and one half inch have occurred in the winter storm warning and winter weather advisory areas this morning. After the precipitation comes to an end, even colder air will arrive tonight, producing wind chill values in the single digits and teens overnight into Tuesday morning. LAZ034>037-039-046>050-056-057-071-072-MSZ068>071-160100- /O.CON.KLIX.WS.W.0001.000000T0000Z-210216T0000Z/ /O.CON.KLIX.WC.Y.0001.210216T0000Z-210216T1800Z/ Pointe Coupee-West Feliciana-East Feliciana-St. Helena-Washington- Iberville-West Baton Rouge-East Baton Rouge-Ascension-Livingston- Assumption-St. James-Northern Tangipahoa-Southern Tangipahoa- Wilkinson-Amite-Pike-Walthall- Including the cities of New Roads, Lettsworth, Livonia, Spillman, St. Francisville, Wakefield, Jackson, Clinton, Felps, Darlington, Easleyville, Greensburg, Montpelier, Bogalusa, Enon, Franklinton, Bayou Sorrel, Plaquemine, White Castle, Port Allen, Addis, Brusly, Baton Rouge, Gonzales, Donaldsonville, Prairieville, Denham Springs, Watson, Walker, Pierre Part, Labadieville, Paincourtville, Convent, Lutcher, Gramercy, Amite, Kentwood, Roseland, Wilmer, Hammond, Robert, Ponchatoula, Centreville, Dolorosa, Fort Adams, Woodville, Gillsberg, Gloster, Smithdale, Liberty, McComb, Dexter, Salem, and Tylertown 1058 AM CST Mon Feb 15 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING... ...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO NOON CST TUESDAY... * WHAT...For the Winter Storm Warning, significant icing. Additional ice accumulations of up to one tenth of an inch mainly for areas east of I-55 in Southwest Mississippi. Little to no additional ice accumulation expected in Southeast Louisiana or for areas west of I-55 in Southwest Mississippi. For the Wind Chill Advisory, very cold wind chills in the single digits and teens expected. * WHERE...All of Southwest Mississippi, and portions of Southeast Louisiana northwest of a Bogalusa to Hammond to Pierre Part line. * WHEN...For the Winter Storm Warning, until 6 PM CST this evening. For the Wind Chill Advisory, from 6 PM this evening to noon CST Tuesday. * IMPACTS...Difficult travel conditions are occurring. The hazardous conditions will impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Prepare for possible power outages. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ LAZ040-058>060-065-MSZ077-160100- /O.CON.KLIX.WW.Y.0001.000000T0000Z-210216T0000Z/ /O.CON.KLIX.WC.Y.0001.210216T0000Z-210216T1800Z/ St. Tammany-St. John The Baptist-Upper Lafourche-St. Charles- Upper Terrebonne-Pearl River- Including the cities of Slidell, Mandeville, Covington, Lacombe, Laplace, Reserve, Thibodaux, Raceland, Larose, Destrehan, Norco, Houma, Bayou Cane, Crossroads, McNeil, Poplarville, and Picayune 1058 AM CST Mon Feb 15 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING... ...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO NOON CST TUESDAY... * WHAT...For the Winter Weather Advisory, freezing rain. Less than a tenth of an inch of ice accumulation expected mainly in Pearl River County. For the Wind Chill Advisory, very cold wind chills expected. Wind chills in the single digits and teens. * WHERE...Pearl River County in Mississippi and St. Tammany, St. Charles, St. John the Baptist, Upper Lafourche, and Upper Terrebonne Parishes in Louisiana. * WHEN...For the Winter Weather Advisory, until 6 PM CST this evening. For the Wind Chill Advisory, from 6 PM this evening to noon CST Tuesday. * IMPACTS...Difficult travel conditions are possible. The hazardous conditions could impact the evening commute. The dangerously cold wind chills could result in hypothermia or frostbite if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ LAZ061>064-066>070-MSZ080>082-160100- /O.CON.KLIX.WC.Y.0001.210216T0000Z-210216T1800Z/ Upper Jefferson-Orleans-Upper Plaquemines-Upper St. Bernard- Lower Terrebonne-Lower Lafourche-Lower Jefferson- Lower Plaquemines-Lower St. Bernard-Hancock-Harrison-Jackson- Including the cities of Metairie, Kenner, East New Orleans, New Orleans, Belle Chasse, Chalmette, Violet, Chauvin, Cocodrie, Dulac, Montegut, Galliano, Cut Off, Golden Meadow, Leeville, Buras, Pointe A La Hache, Port Sulphur, Boothville, Venice, Empire, Myrtle Grove, Yscloskey, Bay St. Louis, Waveland, Diamondhead, Gulfport, Pascagoula, Ocean Springs, Moss Point, Gautier, and St. Martin 1058 AM CST Mon Feb 15 2021 ...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO NOON CST TUESDAY... * WHAT...Very cold wind chills expected. Wind chills in the teens. * WHERE...All of coastal Mississippi and all of Southeast Louisiana south and east of a Houma to Destrehan line. * WHEN...From 6 PM this evening to noon CST Tuesday. * IMPACTS...The dangerously cold wind chills could result in hypothermia or frostbite if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ PG
295 WWUS44 KLIX 152156 WSWLIX URGENT - WINTER WEATHER MESSAGE National Weather Service New Orleans LA 356 PM CST Mon Feb 15 2021 ...Life Threatening Wind Chill Values Tonight... .The combination of winds around 10 mph and temperatures in the teens and lower 20s will produce wind chill values in the single digits and teens tonight into tomorrow morning. LAZ034>037-039-046>050-056-057-071-072-MSZ068>071-160600- /O.CAN.KLIX.WS.W.0001.000000T0000Z-210216T0000Z/ /O.EXT.KLIX.WC.Y.0001.210215T2156Z-210216T1800Z/ Pointe Coupee-West Feliciana-East Feliciana-St. Helena-Washington- Iberville-West Baton Rouge-East Baton Rouge-Ascension-Livingston- Assumption-St. James-Northern Tangipahoa-Southern Tangipahoa- Wilkinson-Amite-Pike-Walthall- Including the cities of New Roads, Lettsworth, Livonia, Spillman, St. Francisville, Wakefield, Jackson, Clinton, Felps, Darlington, Easleyville, Greensburg, Montpelier, Bogalusa, Enon, Franklinton, Bayou Sorrel, Plaquemine, White Castle, Port Allen, Addis, Brusly, Baton Rouge, Gonzales, Donaldsonville, Prairieville, Denham Springs, Watson, Walker, Pierre Part, Labadieville, Paincourtville, Convent, Lutcher, Gramercy, Amite, Kentwood, Roseland, Wilmer, Hammond, Robert, Ponchatoula, Centreville, Dolorosa, Fort Adams, Woodville, Gillsberg, Gloster, Smithdale, Liberty, McComb, Dexter, Salem, and Tylertown 356 PM CST Mon Feb 15 2021 ...WIND CHILL ADVISORY NOW IN EFFECT UNTIL NOON CST TUESDAY... ...WINTER STORM WARNING IS CANCELLED... * WHAT...Very cold wind chills. Wind chills in the single digits. * WHERE...All of Southwest Mississippi and portions of Southeast Louisiana to the northwest of a Bogalusa to Hammond to Pierre Part line. * WHEN...Until noon CST Tuesday. * IMPACTS...The dangerously cold wind chills could result in hypothermia or frostbite if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ LAZ040-058>060-065-MSZ077-160600- /O.CAN.KLIX.WW.Y.0001.000000T0000Z-210216T0000Z/ /O.EXT.KLIX.WC.Y.0001.210215T2156Z-210216T1800Z/ St. Tammany-St. John The Baptist-Upper Lafourche-St. Charles- Upper Terrebonne-Pearl River- Including the cities of Slidell, Mandeville, Covington, Lacombe, Laplace, Reserve, Thibodaux, Raceland, Larose, Destrehan, Norco, Houma, Bayou Cane, Crossroads, McNeil, Poplarville, and Picayune 356 PM CST Mon Feb 15 2021 ...WIND CHILL ADVISORY NOW IN EFFECT UNTIL NOON CST TUESDAY... ...WINTER WEATHER ADVISORY IS CANCELLED... * WHAT...Very cold wind chills. Wind chills in the single digits and teens. * WHERE...Portions of Southeast Louisiana and Southern Mississippi to the northwest of a Poplarville to Slidell to Galliano line and to the southwest of a Bogalusa to Hammond to Pierre Part line. * WHEN...Until noon CST Tuesday. * IMPACTS...The dangerously cold wind chills could result in hypothermia or frostbite if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ LAZ061>064-066>070-MSZ080>082-160600- /O.EXT.KLIX.WC.Y.0001.210215T2156Z-210216T1800Z/ Upper Jefferson-Orleans-Upper Plaquemines-Upper St. Bernard- Lower Terrebonne-Lower Lafourche-Lower Jefferson- Lower Plaquemines-Lower St. Bernard-Hancock-Harrison-Jackson- Including the cities of Metairie, Kenner, East New Orleans, New Orleans, Belle Chasse, Chalmette, Violet, Chauvin, Cocodrie, Dulac, Montegut, Galliano, Cut Off, Golden Meadow, Leeville, Buras, Pointe A La Hache, Port Sulphur, Boothville, Venice, Empire, Myrtle Grove, Yscloskey, Bay St. Louis, Waveland, Diamondhead, Gulfport, Pascagoula, Ocean Springs, Moss Point, Gautier, and St. Martin 356 PM CST Mon Feb 15 2021 ...WIND CHILL ADVISORY NOW IN EFFECT UNTIL NOON CST TUESDAY... * WHAT...Very cold wind chills. Wind chills in the teens. * WHERE...Portions of Southeast Louisiana to the southeast of a New Orleans to Galliano line and all of coastal Mississippi. * WHEN...Until noon CST Tuesday. * IMPACTS...The dangerously cold wind chills could result in hypothermia or frostbite if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ PG
062 WWUS44 KLIX 161026 WSWLIX URGENT - WINTER WEATHER MESSAGE National Weather Service New Orleans LA 426 AM CST Tue Feb 16 2021 ...Life Threatening Wind Chill Values Continue This Morning... .The combination of winds around 10 mph and temperatures in the teens and lower 20s will produce wind chill values in the single digits and teens this morning. LAZ034>037-039-040-046>050-056>072-MSZ068>071-077-080>082-161800- /O.CON.KLIX.WC.Y.0001.000000T0000Z-210216T1800Z/ Pointe Coupee-West Feliciana-East Feliciana-St. Helena-Washington- St. Tammany-Iberville-West Baton Rouge-East Baton Rouge-Ascension- Livingston-Assumption-St. James-St. John The Baptist- Upper Lafourche-St. Charles-Upper Jefferson-Orleans- Upper Plaquemines-Upper St. Bernard-Upper Terrebonne- Lower Terrebonne-Lower Lafourche-Lower Jefferson- Lower Plaquemines-Lower St. Bernard-Northern Tangipahoa- Southern Tangipahoa-Wilkinson-Amite-Pike-Walthall-Pearl River- Hancock-Harrison-Jackson- Including the cities of New Roads, Lettsworth, Livonia, Spillman, St. Francisville, Wakefield, Jackson, Clinton, Felps, Darlington, Easleyville, Greensburg, Montpelier, Bogalusa, Enon, Franklinton, Slidell, Mandeville, Covington, Lacombe, Bayou Sorrel, Plaquemine, White Castle, Port Allen, Addis, Brusly, Baton Rouge, Gonzales, Donaldsonville, Prairieville, Denham Springs, Watson, Walker, Pierre Part, Labadieville, Paincourtville, Convent, Lutcher, Gramercy, Laplace, Reserve, Thibodaux, Raceland, Larose, Destrehan, Norco, Metairie, Kenner, East New Orleans, New Orleans, Belle Chasse, Chalmette, Violet, Houma, Bayou Cane, Chauvin, Cocodrie, Dulac, Montegut, Galliano, Cut Off, Golden Meadow, Leeville, Buras, Pointe A La Hache, Port Sulphur, Boothville, Venice, Empire, Myrtle Grove, Yscloskey, Amite, Kentwood, Roseland, Wilmer, Hammond, Robert, Ponchatoula, Centreville, Dolorosa, Fort Adams, Woodville, Gillsberg, Gloster, Smithdale, Liberty, McComb, Dexter, Salem, Tylertown, Crossroads, McNeil, Poplarville, Picayune, Bay St. Louis, Waveland, Diamondhead, Gulfport, Pascagoula, Ocean Springs, Moss Point, Gautier, and St. Martin 426 AM CST Tue Feb 16 2021 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY... * WHAT...Very cold wind chills. Wind chills in the teens. * WHERE...All of Southeast Louisiana and South Mississippi. * WHEN...Until noon CST. * IMPACTS...The dangerously cold wind chills could result in hypothermia or frostbite if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$
422 WWUS44 KLIX 161808 WSWLIX URGENT - WINTER WEATHER MESSAGE National Weather Service New Orleans LA 1208 PM CST Tue Feb 16 2021 ...WIND CHILL ADVISORY ALLOWED TO EXPIRE... .The combination of warming temperature and lighter winds have pushed wind chills well above the dangerous levels observed last night. Wind chills will remain in the 20s and lower 30s today, so continue to dress warmly when headed outside. LAZ034>037-039-040-046>050-056>072-MSZ068>071-077-080>082-161915- /O.EXP.KLIX.WC.Y.0001.000000T0000Z-210216T1800Z/ Pointe Coupee-West Feliciana-East Feliciana-St. Helena-Washington- St. Tammany-Iberville-West Baton Rouge-East Baton Rouge-Ascension- Livingston-Assumption-St. James-St. John The Baptist- Upper Lafourche-St. Charles-Upper Jefferson-Orleans- Upper Plaquemines-Upper St. Bernard-Upper Terrebonne- Lower Terrebonne-Lower Lafourche-Lower Jefferson- Lower Plaquemines-Lower St. Bernard-Northern Tangipahoa- Southern Tangipahoa-Wilkinson-Amite-Pike-Walthall-Pearl River- Hancock-Harrison-Jackson- Including the cities of New Roads, Lettsworth, Livonia, Spillman, St. Francisville, Wakefield, Jackson, Clinton, Felps, Darlington, Easleyville, Greensburg, Montpelier, Bogalusa, Enon, Franklinton, Slidell, Mandeville, Covington, Lacombe, Bayou Sorrel, Plaquemine, White Castle, Port Allen, Addis, Brusly, Baton Rouge, Gonzales, Donaldsonville, Prairieville, Denham Springs, Watson, Walker, Pierre Part, Labadieville, Paincourtville, Convent, Lutcher, Gramercy, Laplace, Reserve, Thibodaux, Raceland, Larose, Destrehan, Norco, Metairie, Kenner, East New Orleans, New Orleans, Belle Chasse, Chalmette, Violet, Houma, Bayou Cane, Chauvin, Cocodrie, Dulac, Montegut, Galliano, Cut Off, Golden Meadow, Leeville, Buras, Pointe A La Hache, Port Sulphur, Boothville, Venice, Empire, Myrtle Grove, Yscloskey, Amite, Kentwood, Roseland, Wilmer, Hammond, Robert, Ponchatoula, Centreville, Dolorosa, Fort Adams, Woodville, Gillsberg, Gloster, Smithdale, Liberty, McComb, Dexter, Salem, Tylertown, Crossroads, McNeil, Poplarville, Picayune, Bay St. Louis, Waveland, Diamondhead, Gulfport, Pascagoula, Ocean Springs, Moss Point, Gautier, and St. Martin 1208 PM CST Tue Feb 16 2021 ...WIND CHILL ADVISORY HAS EXPIRED... Temperatures have warmed and winds have decreased to around 5 mph this morning. This has allowed wind chills to warm above dangerous levels. However, wind chills will remain in the 20s and lower 30s this afternoon. $$
What forecasters said that day
The local office's own words before this wind chill advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS New Orleans, LA wrote its last area forecast discussion before this wind chill advisory went out at Feb 14, 4:00 PM CST, 3 hours 17 minutes earlier.
Area forecast discussion, Feb 14, 4:00 PM CST, 3 hours 17 minutes before
Area Forecast Discussion
National Weather Service New Orleans LA
400 PM CST Sun Feb 14 2021
.SHORT TERM (Tonight through Tuesday Night)...A significant winter
weather event will take place across the northern and western
portions of the forecast area beginning later tonight. The event
will be driven the combination of strong upper level forcing
associated with a jet max and longwave trough axis, a Gulf low
pushing through the offshore waters, and isentropic forcing in the
mid-levels. This event will consist primarily of freezing rain over
the northwest part of the CWA including metro Baton Rouge and
Southwest Mississippi. The freezing rain will be the result of
southwest flow in the mid-levels advecting warm and humid air into
the area. Temperatures of around 4 to 6C are forecast near the top
of the inversion at 800mb. These warm temperatures will keep any
precipitation in liquid form until it reaches the surface over the
vast majority of the CWA. That being said, with surface temperatures
in the upper 20s and lower 30s around Baton Rouge and Southwest MS,
any rain that falls will quickly freeze on surfaces including
power lines, trees, buildings, and bridges.
The precipitation will come to an end by tomorrow afternoon as the
trough axis and surface quickly pull east of the region and a drier
and more stable airmass advects in. A much colder airmass will also
feed into the region, and overnight lows will fall into the teens
and 20s. Strong gradient flow will accompany this cold air
advection, and this will push wind chill values into the single
digits and teens Monday night into Tuesday morning. Significantly
below average temperatures are expected to persist through the
remainder of the forecast period with highs in the upper 30s and
lower 40s on Tuesday and lows in the 20s and lower 30s Tuesday
night. Another hard freeze will be possible over the northern third
of the CWA.
&&
LONG TERM (Thursday through Sunday)...
A very deep upper level trough will dig into the southern Plains
Wednesday night as a surface low develops along the northwestern
Gulf. An area of cool rain showers will initially develop along a
boundary offshore ahead of the system as upper level return flow
supports isentropic lift. Lower to mid levels will be dry initially
on Wednesday evening with lighter amounts expected before
midnight...Wednesday night. The low will track along a frontal
boundary racing up from the Gulf to the Tennessee valley on
Thursday. The flow will be generated in a strong southwesterly jet
anchored on the lower right axis of the trough. Rainfall amounts
could be fairly heavy in a relatively short window with Gulf
moisture and plenty of associated lift on Thursday morning. 1034 MB
Arctic high pressure along a deep upper level trough will once again
rebuild into the southern Plains on Thursday afternoon. Meanwhile
surface low will race from central Alabama up to New England by
Thursday night putting a quick end to rain for the local area.
Trough will flatten and lift into the area by Friday along with
modifying Arctic high pressure. Temperatures will be cooler on
Thursday night and Friday...however given the lifting
trough...expect to see temperatures only around 10 degrees below
normal on Friday. However...a freeze is likely for interior areas
Friday morning with lows in the 20s to near 30 for inland areas.
Highs will rebound into the 50s on Friday with a warming trend as
high pressure builds in with a more zonal type flow pattern taking
shape. A shortwave will pass well to our north on Sunday with a
slight chance of showers possible by late Sunday. Temperatures will
rebound to near normal by Saturday and continue through the weekend.
&&
.AVIATION...Low ceilings will be the primary concern for most of
the terminals through 06z tonight. Ceilings will generally be near
1000 feet with a mix of IFR and MVFR restrictions expected. There
is a band of light sleet that will impact KMCB between 18z and
20z as well. After 06z, conditions are expected to deteriorate
quickly. Prevailing, IFR and LIFR ceilings will take hold and a
mix of precipitation will develop over all of the terminals. At
KASD, KGPT, KNEW, KMSY, and KHUM, temperatures are expected to
remain above freezing, and a moderate rain with prevailing IFR
visibilities and LIFR ceilings is forecast through the end of the
period. At KMCB, KHDC, and KBTR, a shallow pool of below freezing
air will be in place in the lowest few thousand feet of the
atmosphere. A mix of sleet and freezing rain is forecast for these
terminals with significant icing concerns in place. IFR
visibilities and LIFR ceilings will also be in place at these
terminals.
&&
&&
.MARINE...
Small craft advisories for all marine zones beginning 12Z Monday
through 12Z Tuesday as a 1027 MB Arctic high parked over NE Texas
will bring counterclockwise winds which will bring strong
offshore flow into the waters. Winds will lax on Tuesday afternoon
with offshore flow remaining in place until the next system
approaches on Wednesday. A brief return flow will take hold
Wednesday night as a deep area of low pressure develops along a
the right axis of a deep trough over Texas and the southern
Plains. Another strong cold front moves through on Thursday with
small craft advisories likely once again Thursday night.
&&
.PRELIMINARY POINT TEMPS/POPS...
MCB 25 30 13 37 / 70 90 10 0
BTR 28 30 17 38 / 80 90 10 0
ASD 34 40 19 42 / 40 80 10 0
MSY 36 40 24 40 / 50 70 10 0
GPT 39 44 21 43 / 20 80 10 0
PQL 40 48 20 44 / 20 70 10 0
&&
.LIX WATCHES/WARNINGS/ADVISORIES...
LA...Hard Freeze Watch from Monday evening through Tuesday morning
for LAZ034>037-039-040-046>050-056>072.
Wind Chill Watch from Monday evening through Tuesday morning for
LAZ034>037-039-040-046>050-056>072.
Winter Weather Advisory from 6 AM to 6 PM CST Monday for LAZ040-
058>060-065.
Winter Storm Warning from midnight tonight to 6 PM CST Monday
for LAZ034>037-039-046>050-056-057-071-072.
GM...Small Craft Advisory from 6 AM Monday to 6 AM CST Tuesday for
GMZ530-532-534-536-538-550-552-555-557-570-572-575-577.
MS...Hard Freeze Watch from Monday evening through Tuesday morning
for MSZ068>071-077-080>082.
Wind Chill Watch from Monday evening through Tuesday morning for
MSZ068>071-077-080>082.
Winter Weather Advisory from 6 AM to 6 PM CST Monday for MSZ077.
Winter Storm Warning from midnight tonight to 6 PM CST Monday
for MSZ068>071.
GM...Small Craft Advisory from 6 AM Monday to 6 AM CST Tuesday for
GMZ532-534-536-538-550-552-555-557-570-572-575-577.
&&The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 14, 7:17 PM CST | Hard Freeze Warning | LIX | East Feliciana, Pointe Coupee, Saint Helena, Tangipahoa, West Feliciana | 41 hr |
| Feb 14, 7:17 PM CST | Hard Freeze Warning | LIX | Assumption, East Baton Rouge, Iberville, Saint Bernard, Saint Helena, Saint James and 4 more | 41 hr |
| Feb 14, 9:26 PM CST | Gale Warning | LIX | 17 hr | |
| Feb 14, 9:26 PM CST | Small Craft Advisory | LIX | 9 hr | |
| Feb 15, 7:06 AM CST | Special Weather Statement | LIX | Saint James | 24 min |
| Feb 15, 7:14 AM CST | Special Marine Warning | LIX | 61 min | |
| Feb 15, 8:17 AM CST | Special Marine Warning | LIX | 58 min | |
| Feb 15, 8:56 AM CST | Special Weather Statement | LIX | Plaquemines | 64 min |
| Feb 15, 9:14 AM CST | Special Marine Warning | LIX | 61 min | |
| Feb 15, 9:45 AM CST | Special Marine Warning | LIX | 43 min | |
| Feb 15, 10:26 AM CST | Special Marine Warning | LIX | 37 min |
Nearby
Wind Chill Advisories in Louisiana, 2021Wind Chill Advisories in Mississippi, 2021Every wind chill 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.