Alert archive / Louisiana / Mesoscale Discussions in 2025
Mesoscale Discussion 2178
The Storm Prediction Center issued this mesoscale discussion at Oct 25, 2025, 5:47 AM CDT for 4 parishes in Louisiana; Jefferson County, Orange County, Texas. It was in force for 88 min.
The area
The outline as issued.
The facts
- Issued
- Oct 25, 2025, 5:47 AM CDT (10:47 UTC)
- Expired
- Oct 25, 2025, 7:15 AM CDT
- In force
- 88 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe thunderstorm watch 631
Counties Calcasieu Parish, LA, Cameron Parish, LA, Jefferson Davis Parish, LA, Vermilion Parish, LA, Jefferson County, TX, Orange County, TX
The radar
The Lake Charles radar (KLCH), 13 km from the middle of the area, began a volume at 10:48 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, 10.8 hours before the alert went out and 12 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1242 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 75 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 25, 1:37 AM CDT | Severe Thunderstorm Watch | SPC | Beauregard, Calcasieu, Cameron, Jefferson Davis | 6 hr |
| Oct 24, 7:11 PM CDT | Mesoscale Discussion | SPC | Comanche, Erath, Hood, Johnson, Palo Pinto, Parker and 2 more | 94 min |
| Oct 24, 8:16 PM CDT | Severe Thunderstorm Watch | SPC | Bandera, Bastrop, Bell, Bexar, Blanco, Brazos and 32 more | 9 hr |
| Oct 24, 9:33 PM CDT | Mesoscale Discussion | SPC | Dallas, Ellis, Hill, Johnson, Navarro, Rockwall and 1 more | 117 min |
| Oct 24, 10:52 PM CDT | Mesoscale Discussion | SPC | Atascosa, Bandera, Bexar, Caldwell, Comal, Frio and 9 more | 113 min |
| Oct 25, 12:56 AM CDT | Mesoscale Discussion | SPC | Austin, Brazoria, Chambers, Colorado, DeWitt, Fayette and 19 more | 94 min |
| Oct 25, 3:16 AM CDT | Mesoscale Discussion | SPC | Chambers, Harris, Jefferson, Liberty, Montgomery | 119 min |
| Oct 25, 2:53 PM CDT | Mesoscale Discussion | SPC | Bell, Bosque, Burnet, Comanche, Coryell, Ellis and 15 more | 97 min |
Nearby
Mesoscale Discussions in Louisiana, 2025Mesoscale Discussions in Texas, 2025Every mesoscale discussion 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.