Alert archive / Louisiana / Freeze Warnings in 2021
Freeze Warning 3, NWS New Orleans, LA
NWS New Orleans, LA issued this freeze warning at Feb 19, 2021, 3:55 PM CST for Assumption Parish, Saint James Parish, Saint John the Baptist Parish, Louisiana. It took effect at Feb 20, 2021, 12:00 AM CST. It was in force for 8 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Feb 19, 2021, 3:55 PM CST (21:55 UTC)
- In effect from
- Feb 20, 2021, 12:00 AM CST
- Expired
- Feb 20, 2021, 8:00 AM CST
- In force
- 8 hr
- Issued by
- NWS New Orleans, LA
Counties Assumption Parish, LA, Saint James Parish, LA, Saint John the Baptist Parish, LA
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 9.9 hours before the alert went out and 107 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
- 2 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 515 m above ground
- 0-6 km bulk shear
- 103 kt
- 0-1 km storm-relative helicity
- -56 m²/s²
- 0-3 km storm-relative helicity
- -54 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
198 WWUS74 KLIX 192155 NPWLIX URGENT - WEATHER MESSAGE National Weather Service New Orleans LA 355 PM CST Fri Feb 19 2021 LAZ056>059-065-200600- /O.NEW.KLIX.FZ.W.0003.210220T0600Z-210220T1400Z/ Assumption-St. James-St. John The Baptist-Upper Lafourche- Upper Terrebonne- Including the cities of Pierre Part, Labadieville, Paincourtville, Convent, Lutcher, Gramercy, Laplace, Reserve, Thibodaux, Raceland, Larose, Houma, and Bayou Cane 355 PM CST Fri Feb 19 2021 ...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM CST SATURDAY... * WHAT...Sub-freezing temperatures of 29 to 32 degrees expected tonight. * WHERE...Upper Terrebonne, Assumption, St. James, St. John The Baptist and Upper Lafourche Parishes. * WHEN...From midnight tonight to 8 AM CST Saturday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. Be particularly careful with portable heaters...there is a danger of fire or poisonous fumes. && $$ LAZ034>037-039-071-MSZ068>071-200600- /O.CON.KLIX.HZ.W.0005.210220T0600Z-210220T1400Z/ Pointe Coupee-West Feliciana-East Feliciana-St. Helena-Washington- Northern Tangipahoa-Wilkinson-Amite-Pike-Walthall- Including the cities of New Roads, Lettsworth, Livonia, Spillman, St. Francisville, Wakefield, Jackson, Clinton, Felps, Darlington, Easleyville, Greensburg, Montpelier, Bogalusa, Enon, Franklinton, Amite, Kentwood, Roseland, Wilmer, Centreville, Dolorosa, Fort Adams, Woodville, Gillsberg, Gloster, Smithdale, Liberty, McComb, Dexter, Salem, and Tylertown 355 PM CST Fri Feb 19 2021 ...HARD FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM CST SATURDAY... * WHAT...Sub-freezing temperatures of 22 to 25 degrees expected tonight. * WHERE...In Mississippi, Walthall, Wilkinson, Amite and Pike Counties. In Louisiana, Washington, Pointe Coupee, West Feliciana, East Feliciana, St. Helena and Northern Tangipahoa Parishes. * WHEN...From midnight tonight to 8 AM CST Saturday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. Be particularly careful with portable heaters...there is a danger of fire or poisonous fumes. && $$ PG
1 follow-up statement
687 WWUS74 KLIX 201005 NPWLIX URGENT - WEATHER MESSAGE National Weather Service New Orleans LA 405 AM CST Sat Feb 20 2021 LAZ034>037-039-071-MSZ068>071-201400- /O.CON.KLIX.HZ.W.0005.000000T0000Z-210220T1400Z/ Pointe Coupee-West Feliciana-East Feliciana-St. Helena-Washington- Northern 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, Amite, Kentwood, Roseland, Wilmer, Centreville, Dolorosa, Fort Adams, Woodville, Gillsberg, Gloster, Smithdale, Liberty, McComb, Dexter, Salem, and Tylertown 405 AM CST Sat Feb 20 2021 ...HARD FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM CST THIS MORNING... * WHAT...Sub-freezing temperatures of 22 to 25 degrees expected tonight. * WHERE...In Mississippi, Walthall, Wilkinson, Amite and Pike Counties. In Louisiana, Washington, Pointe Coupee, West Feliciana, East Feliciana, St. Helena and Northern Tangipahoa Parishes. * WHEN...From midnight tonight to 8 AM CST Saturday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ LAZ056>059-065-201400- /O.CON.KLIX.FZ.W.0003.000000T0000Z-210220T1400Z/ Assumption-St. James-St. John The Baptist-Upper Lafourche- Upper Terrebonne- Including the cities of Pierre Part, Labadieville, Paincourtville, Convent, Lutcher, Gramercy, Laplace, Reserve, Thibodaux, Raceland, Larose, Houma, and Bayou Cane 405 AM CST Sat Feb 20 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM CST THIS MORNING... * WHAT...Sub-freezing temperatures of 29 to 32 degrees expected tonight. * WHERE...Upper Terrebonne, Assumption, St. James, St. John The Baptist and Upper Lafourche Parishes. * WHEN...From midnight tonight to 8 AM CST Saturday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 19, 6:44 AM CST | River Flood Warning | LIX | Tangipahoa | 56 hr |
| Feb 19, 11:43 AM CST | Hard Freeze Warning | LIX | East Feliciana, Pointe Coupee, Saint Helena, Tangipahoa, Washington, West Feliciana | 20 hr |
Nearby
Freeze Warnings in Louisiana, 2021Every freeze warning 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.