Alert archive / Louisiana / Heat Advisories in 2016

Heat Advisory 8, NWS New Orleans, LA

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

NWS New Orleans, LA issued this heat advisory at Aug 5, 2016, 3:04 PM CDT for 13 parishes in Louisiana; 5 counties in Mississippi. It took effect at Aug 6, 2016, 10:00 AM CDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued: Aug 5, 2016, 3:04 PM CDT (20:04 UTC)
In effect from: Aug 6, 2016, 10:00 AM CDT
Expired: Aug 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

Jackson, MS (KJAN), launched 12:00Z, 8.1 hours before the alert went out and 198 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: 535 J/kg
Mixed-layer CIN: -120 J/kg
Mixed-layer LCL: 1280 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: 13 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.

NWS New Orleans, LA wrote its last area forecast discussion before this heat advisory went out at Aug 5, 3:46 AM CDT, 11 hours 18 minutes earlier.

Area forecast discussion, Aug 5, 3:46 AM CDT, 11 hours 18 minutes before

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Hazardous weather outlook, Aug 5, 1:11 PM CDT, 1 hour 53 minutes before

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In the hours before

Special weather statement, Aug 5, 12:35 PM CDT, 2 hours 29 minutes before

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Special weather statement, Aug 5, 1:13 PM CDT, 1 hour 51 minutes before

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Special weather statement, Aug 5, 2:12 PM CDT, 52 minutes before

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Special weather statement, Aug 5, 3:03 PM CDT, 1 minute before

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      <p id="message2">
        Please try again in a few minutes.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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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
Aug 4, 7:50 PM CDT	Special Weather Statement	LIX	West Feliciana	25 min
Aug 5, 12:35 PM CDT	Special Weather Statement	LIX	Lafourche	55 min
Aug 5, 1:13 PM CDT	Special Weather Statement	LIX	Terrebonne	62 min
Aug 5, 2:12 PM CDT	Special Weather Statement	LIX	Saint John the Baptist	33 min
Aug 5, 3:03 PM CDT	Special Weather Statement	LIX	Orleans	27 min
Aug 5, 4:32 PM CDT	Special Weather Statement	LIX	Saint Tammany	28 min
Aug 5, 5:05 PM CDT	Special Weather Statement	LIX	Saint Tammany	25 min
Aug 5, 5:24 PM CDT	Special Weather Statement	LIX	Pointe Coupee	36 min
Aug 5, 6:51 PM CDT	Special Weather Statement	LIX	Pointe Coupee, West Feliciana	24 min
Aug 5, 5:22 PM CDT	Special Weather Statement	LIX	Wilkinson	23 min
Aug 5, 6:39 PM CDT	Special Weather Statement	LIX	Pike, Walthall	66 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.