Alert archive / Louisiana / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 81, NWS New Orleans, LA

July 15, 2022Saint Tammany Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at Jul 15, 2022, 3:11 PM CDT for Saint Tammany Parish, Louisiana. It was in force for 31 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
Jul 15, 2022, 3:11 PM CDT (20:11 UTC)
Expired
Jul 15, 2022, 3:42 PM CDT
In force
31 min
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Tornado
Possible
Hail
1.0 in
Wind
60.0 mph

County Saint Tammany Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.2 hours before the alert went out and 30 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.

Skew-T log-pSkew-T log-p diagram, Slidell Radar S, LA at 12:00Z on 2022-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1948 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 12:00Z on 2022-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1948 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
728 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
83 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 Jul 14, 4:02 PM CDT, 23 hours 9 minutes earlier.

Area forecast discussion, Jul 14, 4:02 PM CDT, 23 hours 9 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 15, 11:13 AM CDTSpecial Weather StatementLIXOrleans47 min
Jul 15, 1:55 PM CDTSpecial Weather StatementLIXSaint Tammany35 min
Jul 15, 2:01 PM CDTSpecial Weather StatementLIXOrleans59 min
Jul 15, 2:11 PM CDTSpecial Marine WarningLIX52 min
Jul 15, 2:38 PM CDTSpecial Weather StatementLIXOrleans37 min
Jul 15, 2:41 PM CDTSpecial Weather StatementLIXSaint Tammany49 min
Jul 15, 2:43 PM CDTSpecial Marine WarningLIX38 min
Jul 15, 3:19 PM CDTSpecial Weather StatementLIXEast Baton Rouge41 min
Jul 15, 3:38 PM CDTSpecial Weather StatementLIXTangipahoa52 min
Jul 15, 3:40 PM CDTAreal Flood AdvisoryLIXEast Baton Rouge, Livingston102 min
Jul 15, 3:58 PM CDTSpecial Weather StatementLIXEast Baton Rouge, West Baton Rouge47 min
Jul 15, 4:07 PM CDTAreal Flood AdvisoryLIXEast Baton Rouge, Iberville, West Baton Rouge75 min
Jul 14, 8:31 PM CDTSpecial Weather StatementLIXJackson44 min
Jul 15, 4:27 PM CDTSpecial Weather StatementLIXPearl River48 min
Jul 15, 6:14 PM CDTSpecial Weather StatementLIXWilkinson31 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2022Every 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; the sounding from the Mesonet's radiosonde archive.