Alert archive / Louisiana / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 54, NWS New Orleans, LA

May 15, 20224 parishes in Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at May 15, 2022, 4:26 PM CDT for 4 parishes in Louisiana. It was in force for 49 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: May 15, 2022, 4:26 PM CDT (21:26 UTC)
Expired: May 15, 2022, 5:15 PM CDT
In force: 49 min
Issued by: NWS New Orleans, LA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Jefferson Parish, LA, Orleans Parish, LA, Plaquemines Parish, LA, Saint Bernard Parish, LA

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 May 15, 3:33 PM CDT, 53 minutes earlier.

Area forecast discussion, May 15, 3:33 PM CDT, 53 minutes before

Area Forecast Discussion
National Weather Service New Orleans LA
333 PM CDT Sun May 15 2022

.SHORT TERM (Tonight through Tuesday)...

Troughiness extending from the NE Conus hangs into the NE Gulf
with an weak upper level low with ridging from the SW Conus trying
to nudge into the region from the west. Environment unstable
enough for isolated to scattered showers and thunderstorms to
develop through the overnight hours...likely with less than 30
percent coverage of the area and mainly east of I-55 where it will
be a bit more away from the influence of the nudging ridge.
MCS developed over the plains today and will drop south towards
LA...though may stay west of the area according to HRRR runs and
weaken as it does. Will go with that...but this must be watched
in case it ends up slightly further west. Don't think it is any
severe threat for the region..but could bring rainfall that is
currently not forecasted early tomorrow morning if that should
occur. Ridhing nudges further east into the area and the upper
level low moves into FL by afternoon Monday...maybe an isolated
T-storm in the late afternoon and evening with peak heating. Ridge
moves into the area by early Tuesday. Above average temps will
continue through the period...with normal highs around 85 this
part of May.
-ABS

.LONG TERM (Wednesday through Sunday)...

Ridging looks to be set in place Wednesday and Thursday above
average temps and dry mostly sunny days for the region. Friday a
large syatem moves from the Rockies into the far Northern Plains
and flattens the ridging across the region...surface high siting
off FL will start to push deeper moisture back into the area as a
cold front tries to push into LA but stalls by Saturday allowing
for better chances of showers and thunderstorms as we start the
weekend. The front fizzles north of the area...but could be enough
for continued showers and thunderstorms Sunday. Above normal temps
are likely through the period...though a bit cooler over the
weekend is possible due to the clouds and rainfall. -ABS

&&

.PREV DISCUSSION... /issued 1225 PM CDT Sun May 15 2022/

AVIATION (18z TAFS)...

VFR conditions across the region with light winds. Seabreeze/lake
breeze will affect winds through the afternoon as it pushes inland
across the coastal sites. VCTS has been added especially along the
MS Gulf Coast as the seabreeze boundary may help focus TS
development later today. Will continue to watch for development
and if coverage looks more widespread than anticpated may need to
consider addition of VCTS or TSRA at MSY/BTR/NEW. Soon after
sunset chances for TS should be low, and VFR will dominate with
light west or NW winds. Don't think fog will be much of an issue
with some CI blow off from storms up stream...will have to watch
that MCS complex as it may reach here early morning/daybreak and
TAFs currently do not show such a scenario. -ABS

MARINE...

A few scattered storms this afternoon but other than that just a
potential for isolated, mainly nocturnal, thunderstorms, no major
impacts are expected over marine areas during the forecast period.
35/ABS

&&

.PRELIMINARY POINT TEMPS/POPS...
MCB  67  91  67  92 /   0  20  20  10
BTR  68  92  69  92 /   0  20  20  10
ASD  68  93  68  93 /  10  20  20  10
MSY  72  91  73  91 /  10  10  10  10
GPT  70  91  70  91 /  10  30  20  10
PQL  67  91  67  92 /  10  30  20  10

&&

.LIX WATCHES/WARNINGS/ADVISORIES...
LA...None.
GM...None.
MS...None.
GM...None.
&&

In the hours before

Special weather statement, May 15, 3:02 PM CDT, 1 hour 24 minutes before

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Special weather statement, May 15, 3:36 PM CDT, 50 minutes before

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Special weather statement, May 15, 3:56 PM CDT, 30 minutes before

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Special weather statement, May 15, 4:09 PM CDT, 17 minutes before

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Special weather statement, May 15, 4:23 PM CDT, 3 minutes before

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The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 14, 8:05 PM CDT	Special Marine Warning	LIX		40 min
May 14, 8:09 PM CDT	Special Weather Statement	LIX	Iberville	36 min
May 14, 9:11 PM CDT	Severe Thunderstorm Warning	LIX	Saint Tammany	49 min
May 14, 10:36 PM CDT	Severe Thunderstorm Warning	LIX	Saint Tammany	23 min
May 15, 1:40 AM CDT	Special Marine Warning	LIX		65 min
May 15, 2:43 AM CDT	Special Marine Warning	LIX		92 min
May 15, 4:08 AM CDT	Special Marine Warning	LIX		97 min
May 15, 5:37 AM CDT	Special Marine Warning	LIX		98 min
May 15, 8:00 AM CDT	Special Marine Warning	LIX		60 min
May 15, 10:12 AM CDT	Special Marine Warning	LIX		63 min
May 15, 1:31 PM CDT	Special Marine Warning	LIX		59 min
May 15, 3:02 PM CDT	Special Weather Statement	LIX	Plaquemines	28 min
May 15, 3:36 PM CDT	Special Weather Statement	LIX	Plaquemines	24 min
May 15, 3:56 PM CDT	Special Weather Statement	LIX	Jefferson	34 min
May 15, 3:58 PM CDT	Special Marine Warning	LIX		62 min
May 15, 4:09 PM CDT	Special Weather Statement	LIX	Plaquemines	51 min
May 15, 4:12 PM CDT	Special Marine Warning	LIX		63 min
May 15, 4:23 PM CDT	Special Weather Statement	LIX	Orleans	37 min
May 15, 5:13 PM CDT	Severe Thunderstorm Warning Considerable damage threat	LIX	Jefferson, Orleans, Plaquemines	47 min
May 15, 5:21 PM CDT	Special Marine Warning	LIX		84 min
May 15, 6:36 PM CDT	Special Marine Warning	LIX		39 min
May 14, 7:29 PM CDT	Special Weather Statement	LIX	Harrison	61 min
May 14, 7:32 PM CDT	Severe Thunderstorm Warning	LIX	Harrison	39 min
May 14, 8:35 PM CDT	Special Weather Statement	LIX	Pearl River	55 min
May 14, 9:18 PM CDT	Special Weather Statement	LIX	Pearl River	27 min
May 14, 9:47 PM CDT	Special Weather Statement	LIX	Pearl River	28 min
May 14, 9:50 PM CDT	Special Weather Statement	LIX	Pearl River	25 min
May 14, 9:58 PM CDT	Special Weather Statement	LIX	Hancock	17 min
May 14, 10:15 PM CDT	Special Weather Statement	LIX	Pearl River	30 min
May 15, 6:09 PM CDT	Special Weather Statement	LIX	Harrison	66 min
May 15, 6:25 PM CDT	Severe Thunderstorm Warning	LIX	Harrison	65 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2022 Every severe thunderstorm warning in 2022

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.