Alert archive / Louisiana / Wind Advisories in 2021
Wind Advisory 9, NWS New Orleans, LA
NWS New Orleans, LA issued this wind advisory at May 19, 2021, 1:54 PM CDT for 4 parishes in Louisiana. It took effect at May 20, 2021, 9:00 AM CDT. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- May 19, 2021, 1:54 PM CDT (18:54 UTC)
- In effect from
- May 20, 2021, 9:00 AM CDT
- Expired
- May 20, 2021, 5:18 PM CDT
- In force
- 8 hr
- Issued by
- NWS New Orleans, LA
Counties Orleans Parish, LA, Saint Bernard Parish, LA, Saint John the Baptist Parish, LA, Saint Tammany Parish, LA
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 6.9 hours before the alert went out and 36 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
- 629 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 639 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- 63 m²/s²
- 0-3 km storm-relative helicity
- 227 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
595 WWUS74 KLIX 191854 NPWLIX URGENT - WEATHER MESSAGE National Weather Service New Orleans LA 154 PM CDT Wed May 19 2021 LAZ058>061-063>070-072-075>078-MSZ080>082-200300- /O.NEW.KLIX.WI.Y.0009.210520T1400Z-210521T0000Z/ /O.CON.KLIX.WI.Y.0008.000000T0000Z-210520T0300Z/ St. John The Baptist-Upper Lafourche-St. Charles-Upper Jefferson- Upper Plaquemines-Upper St. Bernard-Upper Terrebonne- Lower Terrebonne-Lower Lafourche-Lower Jefferson- Lower Plaquemines-Lower St. Bernard-Southern Tangipahoa- Northwest St. Tammany-Southeast St. Tammany-Western Orleans- Eastern Orleans-Hancock-Harrison-Jackson- Including the cities of Laplace, Reserve, Thibodaux, Raceland, Larose, Destrehan, Norco, Metairie, Kenner, 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, Hammond, Robert, Ponchatoula, Mandeville, Covington, Lacombe, Slidell, New Orleans, East New Orleans, Bay St. Louis, Waveland, Diamondhead, Gulfport, Pascagoula, Ocean Springs, Moss Point, Gautier, and St. Martin 154 PM CDT Wed May 19 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT THIS EVENING... ...WIND ADVISORY IN EFFECT FROM 9 AM TO 7 PM CDT THURSDAY... * WHAT...For the first Wind Advisory, east winds 15 to 25 mph with gusts up to 45 mph. For the second Wind Advisory, east winds 10 to 20 mph with gusts up to 35 mph expected. * WHERE...Portions of southeast and southern Mississippi and southeast Louisiana. * WHEN...For the first Wind Advisory, until 10 PM CDT this evening. For the second Wind Advisory, from 9 AM to 7 PM CDT Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
5 follow-up statements
999 WWUS74 KLIX 200241 NPWLIX URGENT - WEATHER MESSAGE National Weather Service New Orleans LA 941 PM CDT Wed May 19 2021 LAZ058>061-063>070-072-075>078-MSZ080>082-201045- /O.EXP.KLIX.WI.Y.0008.000000T0000Z-210520T0300Z/ /O.CON.KLIX.WI.Y.0009.210520T1400Z-210521T0000Z/ St. John The Baptist-Upper Lafourche-St. Charles-Upper Jefferson- Upper Plaquemines-Upper St. Bernard-Upper Terrebonne- Lower Terrebonne-Lower Lafourche-Lower Jefferson- Lower Plaquemines-Lower St. Bernard-Southern Tangipahoa- Northwest St. Tammany-Southeast St. Tammany-Western Orleans- Eastern Orleans-Hancock-Harrison-Jackson- Including the cities of Laplace, Reserve, Thibodaux, Raceland, Larose, Destrehan, Norco, Metairie, Kenner, Belle Chasse, Chalmette, Violet, Houma, Bayou Cane, Chauvin, Cocodrie, Dulac, Montegut, Galliano, Cut Off, Golden Meadow, Leeville, Buras, Pointe A La Hache, Port Sulphur, Boothville, Venice, Empire, Myrtle Grove, Yscloskey, Hammond, Robert, Ponchatoula, Mandeville, Covington, Lacombe, Slidell, New Orleans, East New Orleans, Bay St. Louis, Waveland, Diamondhead, Gulfport, Pascagoula, Ocean Springs, Moss Point, Gautier, and St. Martin 941 PM CDT Wed May 19 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 9 AM TO 7 PM CDT THURSDAY... * WHAT...East winds 20 to 25 mph with gusts to 35 mph expected. * WHERE...Coastal areas of Mississippi and southeast Louisiana. * WHEN...From 9 AM to 7 PM CDT Thursday. * IMPACTS...Gusty winds could blow around unsecured household objects such as trash cans. Tree limbs could be blown down and a few power outages may result. Sudden gusts could make driving difficult on elevated roadways and bridges. PRECAUTIONARY/PREPAREDNESS ACTIONS... Secure loose outdoor items. Use extra caution when driving, especially if operating a high profile vehicle. && $$ 95/DM
209 WWUS74 KLIX 200835 NPWLIX URGENT - WEATHER MESSAGE National Weather Service New Orleans LA 335 AM CDT Thu May 20 2021 LAZ058>061-063>070-072-075>078-MSZ080>082-201645- /O.CON.KLIX.WI.Y.0009.210520T1400Z-210521T0000Z/ St. John The Baptist-Upper Lafourche-St. Charles-Upper Jefferson- Upper Plaquemines-Upper St. Bernard-Upper Terrebonne- Lower Terrebonne-Lower Lafourche-Lower Jefferson- Lower Plaquemines-Lower St. Bernard-Southern Tangipahoa- Northwest St. Tammany-Southeast St. Tammany-Western Orleans- Eastern Orleans-Hancock-Harrison-Jackson- Including the cities of Laplace, Reserve, Thibodaux, Raceland, Larose, Destrehan, Norco, Metairie, Kenner, 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, Hammond, Robert, Ponchatoula, Mandeville, Covington, Lacombe, Slidell, New Orleans, East New Orleans, Bay St. Louis, Waveland, Diamondhead, Gulfport, Pascagoula, Ocean Springs, Moss Point, Gautier, and St. Martin 335 AM CDT Thu May 20 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 7 PM CDT THIS EVENING... * WHAT...East winds 20 to 30 mph expected. * WHERE...Portions of southeast and southern Mississippi and southeast Louisiana. * WHEN...From 9 AM this morning to 7 PM CDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
667 WWUS74 KLIX 201625 NPWLIX URGENT - WEATHER MESSAGE National Weather Service New Orleans LA 1125 AM CDT Thu May 20 2021 LAZ058>061-063>070-072-075>078-MSZ080>082-210000- /O.CON.KLIX.WI.Y.0009.000000T0000Z-210521T0000Z/ St. John The Baptist-Upper Lafourche-St. Charles-Upper Jefferson- Upper Plaquemines-Upper St. Bernard-Upper Terrebonne- Lower Terrebonne-Lower Lafourche-Lower Jefferson- Lower Plaquemines-Lower St. Bernard-Southern Tangipahoa- Northwest St. Tammany-Southeast St. Tammany-Western Orleans- Eastern Orleans-Hancock-Harrison-Jackson- Including the cities of Laplace, Reserve, Thibodaux, Raceland, Larose, Destrehan, Norco, Metairie, Kenner, Belle Chasse, Chalmette, Violet, Houma, Bayou Cane, Chauvin, Cocodrie, Dulac, Montegut, Galliano, Cut Off, Golden Meadow, Leeville, Buras, Pointe A La Hache, Port Sulphur, Boothville, Venice, Empire, Myrtle Grove, Yscloskey, Hammond, Robert, Ponchatoula, Mandeville, Covington, Lacombe, Slidell, New Orleans, East New Orleans, Bay St. Louis, Waveland, Diamondhead, Gulfport, Pascagoula, Ocean Springs, Moss Point, Gautier, and St. Martin 1125 AM CDT Thu May 20 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...East winds 20 to 30 mph expected. * WHERE...Portions of southeast and southern Mississippi and southeast Louisiana. * WHEN...From 9 AM this morning to 7 PM CDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
028 WWUS74 KLIX 202056 NPWLIX URGENT - WEATHER MESSAGE National Weather Service New Orleans LA 356 PM CDT Thu May 20 2021 LAZ058>061-063>070-072-075>078-MSZ080>082-210500- /O.NEW.KLIX.WI.Y.0010.210521T1200Z-210522T0000Z/ /O.CON.KLIX.WI.Y.0009.000000T0000Z-210521T0000Z/ St. John The Baptist-Upper Lafourche-St. Charles-Upper Jefferson- Upper Plaquemines-Upper St. Bernard-Upper Terrebonne- Lower Terrebonne-Lower Lafourche-Lower Jefferson- Lower Plaquemines-Lower St. Bernard-Southern Tangipahoa- Northwest St. Tammany-Southeast St. Tammany-Western Orleans- Eastern Orleans-Hancock-Harrison-Jackson- Including the cities of Laplace, Reserve, Thibodaux, Raceland, Larose, Destrehan, Norco, Metairie, Kenner, 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, Hammond, Robert, Ponchatoula, Mandeville, Covington, Lacombe, Slidell, New Orleans, East New Orleans, Bay St. Louis, Waveland, Diamondhead, Gulfport, Pascagoula, Ocean Springs, Moss Point, Gautier, and St. Martin 356 PM CDT Thu May 20 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... ...WIND ADVISORY IN EFFECT FROM 7 AM TO 7 PM CDT FRIDAY... * WHAT...Southeast winds 15 to 25 mph with gusts up to 30 mph. * WHERE...Coastal areas of Mississippi and southeast Louisiana. * WHEN...For the first Wind Advisory, until 7 PM CDT this evening. For the second Wind Advisory, from 7 AM to 7 PM CDT Friday. * IMPACTS...Gusty winds could blow around unsecured household objects such as trash cans. Tree limbs could be blown down and a few power outages may result. Sudden gusts could make driving difficult on elevated roadways and bridges. PRECAUTIONARY/PREPAREDNESS ACTIONS... Secure loose outdoor items. Use extra caution when driving, especially if operating a high profile vehicle. && $$
338 WWUS74 KLIX 202218 NPWLIX URGENT - WEATHER MESSAGE National Weather Service New Orleans LA 518 PM CDT Thu May 20 2021 LAZ058>061-063>070-072-075>078-MSZ080>082-210630- /O.CAN.KLIX.WI.Y.0009.000000T0000Z-210521T0000Z/ /O.EXT.KLIX.WI.Y.0010.210520T2218Z-210522T0000Z/ St. John The Baptist-Upper Lafourche-St. Charles-Upper Jefferson- Upper Plaquemines-Upper St. Bernard-Upper Terrebonne- Lower Terrebonne-Lower Lafourche-Lower Jefferson- Lower Plaquemines-Lower St. Bernard-Southern Tangipahoa- Northwest St. Tammany-Southeast St. Tammany-Western Orleans- Eastern Orleans-Hancock-Harrison-Jackson- Including the cities of Laplace, Reserve, Thibodaux, Raceland, Larose, Destrehan, Norco, Metairie, Kenner, Belle Chasse, Chalmette, Violet, Houma, Bayou Cane, Chauvin, Cocodrie, Dulac, Montegut, Galliano, Cut Off, Golden Meadow, Leeville, Buras, Pointe A La Hache, Port Sulphur, Boothville, Venice, Empire, Myrtle Grove, Yscloskey, Hammond, Robert, Ponchatoula, Mandeville, Covington, Lacombe, Slidell, New Orleans, East New Orleans, Bay St. Louis, Waveland, Diamondhead, Gulfport, Pascagoula, Ocean Springs, Moss Point, Gautier, and St. Martin 518 PM CDT Thu May 20 2021 ...WIND ADVISORY NOW IN EFFECT UNTIL 7 PM CDT FRIDAY... * WHAT...East winds 20 to 30 mph with gusts up to 40 mph. * WHERE...Coastal areas of Mississippi and southeast Louisiana. * WHEN...Until 7 PM CDT Friday. * IMPACTS...Gusty winds could blow around unsecured household objects such as trash cans. Tree limbs could be blown down and a few power outages may result. Sudden gusts could make driving difficult on elevated roadways and bridges. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 19, 1:00 AM CDT | Special Marine Warning | LIX | 60 min | |
| May 19, 2:00 AM CDT | Gale Warning | LIX | 19 hr | |
| May 19, 2:00 AM CDT | Small Craft Advisory | LIX | 3 days | |
| May 19, 3:54 AM CDT | Wind Advisory | LIX | Orleans, Saint Bernard, Saint John the Baptist, Saint Tammany | 18 hr |
| May 19, 10:17 AM CDT | Special Marine Warning | LIX | 58 min | |
| May 19, 11:55 AM CDT | River Flood Warning | LIX | Livingston | 21 days |
| May 19, 1:20 PM CDT | Special Marine Warning | LIX | 55 min | |
| May 19, 1:54 PM CDT | Special Marine Warning | LIX | 66 min | |
| May 19, 2:59 PM CDT | Special Marine Warning | LIX | 61 min | |
| May 19, 4:13 PM CDT | Special Marine Warning | LIX | 92 min | |
| May 19, 4:20 PM CDT | Special Weather Statement | LIX | Saint Bernard | 55 min |
| May 19, 5:42 PM CDT | Special Marine Warning | LIX | 63 min | |
| May 19, 6:30 PM CDT | Areal Flood Advisory | LIX | Saint Tammany | 2 hr |
| May 19, 6:37 PM CDT | Special Marine Warning | LIX | 53 min |
Nearby
Wind Advisories in Louisiana, 2021Wind Advisories in Mississippi, 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.