Alert archive / Louisiana / Heat Advisories in 2016

Heat Advisory 4, NWS New Orleans, LA

July 6, 201613 parishes in Louisiana; 5 counties in Mississippi

NWS New Orleans, LA issued this heat advisory at Jul 6, 2016, 3:54 PM CDT for 13 parishes in Louisiana; 5 counties in Mississippi. It took effect at Jul 7, 2016, 10:00 AM CDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Jul 6, 2016, 3:54 PM CDT (20:54 UTC)
In effect from
Jul 7, 2016, 10:00 AM CDT
Expired
Jul 7, 2016, 7:00 PM CDT
In force
9 hr
Issued by
NWS New Orleans, LA

Counties Assumption Parish, LA, East Baton Rouge Parish, LA, East Feliciana Parish, LA, Iberville Parish, LA, Pointe Coupee Parish, LA, Saint Bernard Parish, LA, Saint Helena Parish, LA, Saint James Parish, LA, Saint John the Baptist Parish, LA, Tangipahoa Parish, LA, Washington Parish, LA, West Baton Rouge Parish, LA, West Feliciana Parish, LA, Amite County, MS, Pearl River County, MS, Pike County, MS, Walthall County, MS, Wilkinson County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.9 hours before the alert went out and 108 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 2016-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3519 joules per kilogram.LCLEL10008507005003002001001 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 2016-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -34 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
3519 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
706 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-34 m²/s²
0-3 km storm-relative helicity
-6 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 12:48 PM CDTSpecial Weather StatementLIXWest Feliciana27 min
Jul 6, 1:05 PM CDTSpecial Weather StatementLIXWest Baton Rouge25 min
Jul 6, 1:16 PM CDTSpecial Weather StatementLIXEast Feliciana29 min
Jul 6, 1:30 PM CDTSpecial Weather StatementLIXEast Baton Rouge, East Feliciana30 min
Jul 6, 2:03 PM CDTSpecial Weather StatementLIXEast Feliciana27 min
Jul 6, 1:37 PM CDTSpecial Weather StatementLIXAmite23 min
Jul 6, 3:08 PM CDTSpecial Weather StatementLIXPike, Walthall37 min

Nearby

Heat Advisories in Louisiana, 2016Heat Advisories in Mississippi, 2016Every heat advisory in 2016

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.