Alert archive / Louisiana / Wind Advisories in 2025
Wind Advisory 11, NWS New Orleans, LA
NWS New Orleans, LA issued this wind advisory at Dec 28, 2025, 10:21 AM CST for 14 parishes in Louisiana. It took effect at Dec 29, 2025, 3:00 AM CST. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- Dec 28, 2025, 10:21 AM CST (16:21 UTC)
- In effect from
- Dec 29, 2025, 3:00 AM CST
- Expired
- Dec 29, 2025, 3:00 PM CST
- In force
- 12 hr
- Issued by
- NWS New Orleans, LA
Counties Ascension Parish, LA, Assumption Parish, LA, Iberville Parish, LA, Jefferson Parish, LA, Livingston Parish, LA, Orleans Parish, LA, Plaquemines Parish, LA, Pointe Coupee Parish, LA, Saint Bernard Parish, LA, Saint James Parish, LA, Saint John the Baptist Parish, LA, Saint Tammany Parish, LA, Tangipahoa Parish, LA, West Baton Rouge Parish, LA
The radar
The Hammond radar (KHDC), 43 km from the middle of the area, began a volume at 16:23 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
Jackson, MS (KJAN), launched 12:00Z, 4.4 hours before the alert went out and 244 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
- 4 J/kg
- Mixed-layer CIN
- -467 J/kg
- Mixed-layer LCL
- 615 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 130 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 27, 11:54 PM CST | Small Craft Advisory | LIX | 60 hr | |
| Dec 28, 10:28 AM CST | Gale Warning | LIX | 29 hr | |
| Dec 28, 10:28 AM CST | Small Craft Advisory | LIX | 50 hr |
Nearby
Wind Advisories in Louisiana, 2025Every wind advisory in 2025
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.