Alert archive / Louisiana / Heat Advisories in 2021
Heat Advisory 13, NWS Lake Charles, LA
NWS Lake Charles, LA issued this heat advisory at Aug 25, 2021, 4:01 AM CDT for 6 parishes in Louisiana. It took effect at Aug 25, 2021, 12:00 PM CDT. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Aug 25, 2021, 4:01 AM CDT (09:01 UTC)
- In effect from
- Aug 25, 2021, 12:00 PM CDT
- Expired
- Aug 25, 2021, 6:00 PM CDT
- In force
- 6 hr
- Issued by
- NWS Lake Charles, LA
Counties Avoyelles Parish, LA, Evangeline Parish, LA, Lafayette Parish, LA, Rapides Parish, LA, Saint Landry Parish, LA, Saint Martin Parish, LA
The radar
The Ft Polk radar (KPOE), 100 km from the middle of the area, began a volume at 09:05 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
Lake Charles Mun, LA (KLCH), launched 00:00Z, 9.0 hours before the alert went out and 121 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
- 2686 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 1216 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 129 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
691 WWUS74 KLCH 250901 NPWLCH URGENT - WEATHER MESSAGE National Weather Service Lake Charles LA 401 AM CDT Wed Aug 25 2021 LAZ028-029-032-033-251700- /O.NEW.KLCH.HT.Y.0013.210825T1700Z-210825T2100Z/ Rapides-Avoyelles-Evangeline-St. Landry- Including the cities of Alexandria, Pineville, Effie, Marksville, Bunkie, Cottonport, Simmesport, Mansura, Ville Platte, Beaver, St. Landry, Mamou, Reddell, Lawtell, Opelousas, and Eunice 401 AM CDT Wed Aug 25 2021 ...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 4 PM CDT THIS AFTERNOON... * WHAT...Heat index values up to 110 expected. * WHERE...Rapides, Avoyelles, Evangeline and St. Landry Parishes. * WHEN...From noon today to 4 PM CDT this afternoon. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ 13
2 follow-up statements
851 WWUS74 KLCH 251555 NPWLCH URGENT - WEATHER MESSAGE National Weather Service Lake Charles LA 1055 AM CDT Wed Aug 25 2021 LAZ028-029-032-033-252100- /O.CON.KLCH.HT.Y.0013.210825T1700Z-210825T2100Z/ Rapides-Avoyelles-Evangeline-St. Landry- Including the cities of Alexandria, Pineville, Effie, Marksville, Bunkie, Cottonport, Simmesport, Mansura, Ville Platte, Beaver, St. Landry, Mamou, Reddell, Lawtell, Opelousas, and Eunice 1055 AM CDT Wed Aug 25 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON... * WHAT...Heat index values up to 110 expected. * WHERE...Rapides, Avoyelles, Evangeline and St. Landry Parishes. * WHEN...From noon today to 4 PM CDT this afternoon. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
846 WWUS74 KLCH 252004 NPWLCH URGENT - WEATHER MESSAGE National Weather Service Lake Charles LA 304 PM CDT Wed Aug 25 2021 LAZ043>045-053>055-252300- /O.EXB.KLCH.HT.Y.0013.000000T0000Z-210825T2300Z/ Acadia-Lafayette-Upper St. Martin-Iberia-St. Mary- Lower St. Martin- Including the cities of Crowley, Rayne, Branch, Church Point, Richard, Lafayette, Breaux Bridge, Cade, St. Martinville, New Iberia, Morgan City, Burns Point, Centerville, Franklin, Patterson, Berwick, Bayou Vista, and Stephensville 304 PM CDT Wed Aug 25 2021 ...HEAT ADVISORY IN EFFECT UNTIL 6 PM CDT THIS EVENING... * WHAT...Heat index values up to 110. * WHERE...Acadia, Lafayette, Upper St. Martin, Iberia, St. Mary and Lower St. Martin Parishes. * WHEN...Until 6 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ LAZ028-029-032-033-252300- /O.EXT.KLCH.HT.Y.0013.000000T0000Z-210825T2300Z/ Rapides-Avoyelles-Evangeline-St. Landry- Including the cities of Alexandria, Pineville, Effie, Marksville, Bunkie, Cottonport, Simmesport, Mansura, Ville Platte, Beaver, St. Landry, Mamou, Reddell, Lawtell, Opelousas, and Eunice 304 PM CDT Wed Aug 25 2021 ...HEAT ADVISORY NOW IN EFFECT UNTIL 6 PM CDT THIS EVENING... * WHAT...Heat index values up to 110 expected. * WHERE...Rapides, Avoyelles, Evangeline and St. Landry Parishes. * WHEN...Until 6 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
The office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 7:00 PM CDT | Special Weather Statement | LCH | Calcasieu, Cameron | 60 min |
| Aug 24, 7:13 PM CDT | Special Marine Warning | LCH | 62 min | |
| Aug 24, 7:40 PM CDT | Special Weather Statement | LCH | Calcasieu | 65 min |
Nearby
Heat Advisories in Louisiana, 2021Every heat 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; radar from the NEXRAD Level II archive.