Alert archive / Texas / Lake Wind Advisories in 2021
Lake Wind Advisory 21, NWS Shreveport, LA
NWS Shreveport, LA issued this lake wind advisory at Sep 14, 2021, 2:52 AM CDT for 6 parishes in Louisiana; 9 counties in Texas. It took effect at Sep 14, 2021, 10:00 AM CDT. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Sep 14, 2021, 2:52 AM CDT (07:52 UTC)
- In effect from
- Sep 14, 2021, 10:00 AM CDT
- Expired
- Sep 14, 2021, 2:38 PM CDT
- In force
- 5 hr
- Issued by
- NWS Shreveport, LA
Counties Bossier Parish, LA, Caddo Parish, LA, De Soto Parish, LA, Natchitoches Parish, LA, Red River Parish, LA, Sabine Parish, LA, Angelina County, TX, Cherokee County, TX, Harrison County, TX, Nacogdoches County, TX, Panola County, TX, Rusk County, TX, Sabine County, TX, San Augustine County, TX, Shelby County, TX
The radar
The Shreveport radar (KSHV), 64 km from the middle of the area, began a volume at 07:54 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
Shreveport, LA (KSHV), launched 00:00Z, 7.9 hours before the alert went out and 70 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
- 925 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 902 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- 11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
030 WWUS74 KSHV 140752 NPWSHV URGENT - WEATHER MESSAGE National Weather Service Shreveport LA 252 AM CDT Tue Sep 14 2021 LAZ001-002-010-011-017-018-TXZ138-149>153-165>167-141600- /O.NEW.KSHV.LW.Y.0021.210914T1500Z-210914T2200Z/ Caddo-Bossier-De Soto-Red River-Sabine-Natchitoches-Harrison- Cherokee-Rusk-Panola-Nacogdoches-Shelby-Angelina-San Augustine- Including the cities of Shreveport, Bossier City, Mansfield, Stonewall, Logansport, Coushatta, Martin, Many, Zwolle, Pleasant Hill, Natchitoches, Marshall, Jacksonville, Rusk, Henderson, Carthage, Nacogdoches, Center, Lufkin, San Augustine, Hemphill, and Pineland 252 AM CDT Tue Sep 14 2021 ...LAKE WIND ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 5 PM CDT THIS AFTERNOON... * WHAT...East winds 10 to 20 mph expected. * WHERE...Portions of northwest Louisiana and east and northeast Texas. * WHEN...From 10 AM this morning to 5 PM CDT this afternoon. * 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. && $$
1 follow-up statement
884 WWUS74 KSHV 141938 NPWSHV URGENT - WEATHER MESSAGE National Weather Service Shreveport LA 238 PM CDT Tue Sep 14 2021 LAZ001-002-010-011-017-018-TXZ138-149>153-165>167-142045- /O.CAN.KSHV.LW.Y.0021.000000T0000Z-210914T2200Z/ Caddo-Bossier-De Soto-Red River-Sabine-Natchitoches-Harrison- Cherokee-Rusk-Panola-Nacogdoches-Shelby-Angelina-San Augustine- Including the cities of Shreveport, Bossier City, Mansfield, Stonewall, Logansport, Coushatta, Martin, Many, Zwolle, Pleasant Hill, Natchitoches, Marshall, Jacksonville, Rusk, Henderson, Carthage, Nacogdoches, Center, Lufkin, San Augustine, Hemphill, and Pineland 238 PM CDT Tue Sep 14 2021 ...LAKE WIND ADVISORY IS CANCELLED... $$ 19
Nearby
Lake Wind Advisories in Texas, 2021Lake Wind Advisories in Louisiana, 2021Every lake 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; radar from the NEXRAD Level II archive.