Alert archive / Louisiana / Heat Advisories in 2016

Heat Advisory 3, NWS New Orleans, LA

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

NWS New Orleans, LA issued this heat advisory at Jul 5, 2016, 3:44 PM CDT for 13 parishes in Louisiana; 5 counties in Mississippi. It took effect at Jul 6, 2016, 10:00 AM CDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued: Jul 5, 2016, 3:44 PM CDT (20:44 UTC)
In effect from: Jul 6, 2016, 10:00 AM CDT
Expired: Jul 6, 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, 8.7 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 3139 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 773 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -5 m²/s²
0-3 km storm-relative helicity: 35 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 heat advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

Hazardous weather outlook, Jul 4, 4:58 PM CDT, 22 hours 46 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
Jul 5, 3:35 AM CDT	Heat Advisory	LIX	Assumption, East Baton Rouge, East Feliciana, Iberville, Pointe Coupee, Saint Bernard and 7 more	15 hr
Jul 5, 1:00 PM CDT	Special Marine Warning	LIX		45 min
Jul 5, 2:17 PM CDT	Special Weather Statement	LIX	Amite	43 min
Jul 5, 3:30 PM CDT	Special Weather Statement	LIX	Pike, Walthall	45 min

Nearby

Heat Advisories in Louisiana, 2016 Heat Advisories in Mississippi, 2016 Every 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.