Alert archive / Louisiana / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 10, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Mar 4, 2025, 2:04 PM CST for Pointe Coupee Parish, West Feliciana Parish, Louisiana; Amite County, Wilkinson County, Mississippi. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Mar 4, 2025, 2:04 PM CST (20:04 UTC)
- Expired
- Mar 4, 2025, 2:45 PM CST
- In force
- 41 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
- Damage threat
- Destructive
- Hail
- 0.75 in
- Wind
- 80.0 mph
Counties Pointe Coupee Parish, LA, West Feliciana Parish, LA, Amite County, MS, Wilkinson County, MS
The radar
The Hammond radar (KHDC), 98 km from the middle of the area, began a volume at 20:07 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 4, 12:22 PM CST | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 8.1 hours before the alert went out and 172 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
- 656 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 281 m²/s²
- 0-3 km storm-relative helicity
- 428 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS New Orleans, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 4, 11:48 AM CST, 2 hours 16 minutes earlier.
Area forecast discussion, Mar 4, 11:48 AM CST, 2 hours 16 minutes before
Area Forecast Discussion
National Weather Service New Orleans LA
1148 AM CST Tue Mar 4 2025
...New AVIATION...
.SHORT TERM...
(Today through Wednesday)
Issued at 307 AM CST Tue Mar 4 2025
All headlines will remain as is. Timing and all variables associated
with this cold front that moves through today will also remain the
same. This system is starting to develop over west TX. The
developing front already has some strong winds with it as northerly
winds rush in behind the front over teh western panhandle this
morning. The strong storms developing along this front will begin to
race east this morning and should be moving into our area just after
noon. Some showers may move through just ahead of it by late
morning, but the main feature will remain on the same schedule that
has been set. All modes of severe wx will be on the table with this.
The fropa will clean the area tonight as it will move through rather
quickly. All locations will be clear by Wed morning, but it remain
breezy as strong high pressure moves in with cool dry air.
&&
.LONG TERM...
(Wednesday night through Monday)
Issued at 307 AM CST Tue Mar 4 2025
As the sfc high moves in, winds will relax rather abruptly Wed night
into Thu. Winds will come around to a southerly flow by Fri and
begin to rise ahead of the next cold front that should impact the
area next weekend.
&&
.AVIATION...
(18Z TAFS)
Issued at 1139 AM CST Tue Mar 4 2025
Low level wind shear of 50 to 60 knots in the lowest 2000 feet
associated with a strong low level jet across the area will be in
place for the next several hours as a potent storm system impacts
the region. In addition to the low level wind shear concerns, a
potent line of thunderstorms will impact the terminals between 22z
and 02z with intense winds potentially over 50 knots, lightning,
and IFR ceilings and visibilties. The impacts will be short-lived,
generally less than an hour, and TEMPO groups are in place to
reflect this risk. After 02z, rapid clearing will take place as a
very dry airmass begins to move into the area and all of the
terminals will be in VFR status by 06z. PG
&&
.AVIATION...
(12Z TAFS)
Issued at 307 AM CST Tue Mar 4 2025
A mix of MVFR and VFR cigs will remain through much of the day.
These cigs will lower as a cold front moves through each site. Every
terminal will have cigs and vis lower to IFR or LIFR for a short
time as a line of +TSRA moves over each location today. This line of
storms will be timed in this taf pack. Conditions will go VFR from
west to east after sunset today. Winds will be quite strong from the
south today. These winds will shift to west with fropa.
&&
.MARINE...
Issued at 307 AM CST Tue Mar 4 2025
Strong southerly gales will start today ahead of a strong cold front
that will move through the coastal waters late today and tonight. A
line of storms will move through the northern gulf late today into
the night hours which will produce strong winds as well from
different directions. Winds will rapidly ease Thu as a sfc high
moves over the northern gulf. But this will be quick and the sfc
high will be east of the area late Thu bringing return flow back to
the coastal waters. Wind speeds will quickly move back up to around
20kt by Thu night into Fri.
&&
.PRELIMINARY POINT TEMPS/POPS...
MCB 76 48 63 36 / 80 40 0 0
BTR 79 50 66 38 / 60 10 0 0
ASD 78 53 68 40 / 80 80 0 0
MSY 78 55 67 45 / 80 80 0 0
GPT 73 54 66 41 / 60 80 0 0
PQL 76 56 70 39 / 50 70 0 0
&&
.LIX WATCHES/WARNINGS/ADVISORIES...
LA...High Wind Warning until 9 PM CST this evening for LAZ034>037-039-
046>048-056>060-064>071-076>090.
Coastal Flood Advisory until 9 PM CST this evening for
LAZ066>070-076-078-080-082.
GM...Gale Warning until 9 PM CST this evening for GMZ530-532-534-536-
538-550-552-555-557-570-572-575-577.
MS...High Wind Warning until 9 PM CST this evening for MSZ068>071-077-
083>088.
Coastal Flood Advisory until 9 PM CST this evening for
MSZ086>088.
GM...Gale Warning until 9 PM CST this evening for GMZ532-534-536-538-
550-552-555-557-570-572-575-577.
&&
SHORT TERM...TE
LONG TERM....TE
AVIATION...PG
MARINE...TEThe office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 4, 2:45 PM CST | Severe Thunderstorm Warning | LIX | East Baton Rouge, East Feliciana, Pointe Coupee, Saint Helena, West Baton Rouge, West Feliciana | 60 min |
| Mar 4, 3:00 PM CST | Small Craft Advisory | LIX | 39 hr | |
| Mar 4, 4:05 PM CST | Severe Thunderstorm Warning | LIX | Saint Helena, Tangipahoa, Washington | 55 min |
| Mar 4, 4:52 PM CST | Tornado Warning | LIX | Ascension, Assumption, Livingston, Saint James | 23 min |
| Mar 4, 5:18 PM CST | Tornado Warning | LIX | Ascension, Saint James, Saint John the Baptist, Tangipahoa | 27 min |
| Mar 4, 5:33 PM CST | Special Marine Warning | LIX | 26 days | |
| Mar 4, 3:14 PM CST | Tornado Warning | LIX | Amite, Pike, Walthall | 46 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 2025Severe Thunderstorm Warnings in Mississippi, 2025Every severe thunderstorm warning 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.