Alert archive / Mississippi / Tornado Watches in 2025
Tornado Watch 633
The Storm Prediction Center issued this tornado watch at Oct 26, 2025, 5:23 AM CDT for 9 parishes in Louisiana; 11 counties in Mississippi. It was in force for 9 hr.
The area
The outline as issued.
The facts
- Issued
- Oct 26, 2025, 5:23 AM CDT (10:23 UTC)
- Expired
- Oct 26, 2025, 2:00 PM CDT
- In force
- 9 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 0.5 in
- Strongest gust expected
- 60 kt
Counties Jefferson Parish, LA, Lafourche Parish, LA, Orleans Parish, LA, Plaquemines Parish, LA, Saint Bernard Parish, LA, Saint Charles Parish, LA, Saint Tammany Parish, LA, Terrebonne Parish, LA, Washington Parish, LA, Forrest County, MS, George County, MS, Hancock County, MS, Harrison County, MS, Jackson County, MS, Lamar County, MS, Marion County, MS, Pearl River County, MS, Pike County, MS, Stone County, MS, Walthall County, MS
The radar
The Hammond radar (KHDC), 83 km from the middle of the area, began a volume at 10:23 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 30%
- One or more EF2 to EF5 tornadoes
- 10%
- Ten or more severe wind reports
- 20%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 10%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 40%
Warnings issued inside it
15 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 26, 5:23 AM CDT | Tornado Warning | LIX | Terrebonne | 41 min |
| Oct 26, 5:41 AM CDT | Tornado Warning | LIX | Lafourche, Terrebonne | 34 min |
| Oct 26, 5:54 AM CDT | Tornado Warning | LIX | Saint Tammany, Tangipahoa, Washington | 36 min |
| Oct 26, 5:56 AM CDT | Tornado Warning | LIX | Lafourche, Terrebonne | 21 min |
| Oct 26, 6:15 AM CDT | Tornado Warning | LIX | Jefferson, Saint Charles | 30 min |
| Oct 26, 6:25 AM CDT | Severe Thunderstorm Warning | LIX | Jefferson, Lafourche, Plaquemines, Saint Charles | 35 min |
| Oct 26, 6:48 AM CDT | Severe Thunderstorm Warning | LIX | Jefferson, Orleans, Saint Charles | 27 min |
| Oct 26, 7:01 AM CDT | Flash Flood Warning | LIX | Jefferson, Orleans | 111 min |
| Oct 26, 7:07 AM CDT | Flash Flood Warning | LIX | Orleans, Saint Bernard | 104 min |
| Oct 26, 7:46 AM CDT | Flash Flood Warning | LIX | Amite, Pike, Walthall | 3 hr |
| Oct 26, 8:07 AM CDT | Tornado Warning | LIX | Washington | 16 min |
| Oct 26, 9:22 AM CDT | Tornado Warning | LIX | Jackson | 38 min |
| Oct 26, 9:56 AM CDT | Tornado Warning | LIX | Jackson | 33 min |
| Oct 26, 10:01 AM CDT | Tornado Warning | LIX | Jackson | 44 min |
| Oct 26, 10:46 AM CDT | Tornado Warning | LIX | Jackson | 44 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 10.4 hours before the alert went out and 21 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
- 584 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 548 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 288 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.5
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 25, 9:40 PM CDT | Mesoscale Discussion | SPC | Acadia, Allen, Ascension, Assumption, Avoyelles, Beauregard and 20 more | 2 hr |
| Oct 25, 11:03 PM CDT | Tornado Watch | SPC | Acadia, Allen, Ascension, Assumption, Avoyelles, Beauregard and 22 more | 7 hr |
| Oct 26, 1:37 AM CDT | Mesoscale Discussion | SPC | East Baton Rouge, East Feliciana, Iberville, Lafayette, Pointe Coupee, Saint Landry and 3 more | 83 min |
| Oct 26, 3:32 AM CDT | Mesoscale Discussion | SPC | Orleans, Saint Charles, Saint John the Baptist, Saint Tammany, Tangipahoa, Washington | 118 min |
| Oct 26, 6:17 AM CDT | Mesoscale Discussion | SPC | Jefferson, Lafourche, Orleans, Saint Charles, Saint John the Baptist, Saint Tammany and 1 more | 88 min |
| Oct 26, 8:51 AM CDT | Mesoscale Discussion | SPC | George, Greene, Jackson, Perry | 84 min |
Nearby
Tornado Watches in Mississippi, 2025Tornado Watches in Louisiana, 2025Every tornado watch 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.