Alert archive / Louisiana / Storm Surge Warnings in 2018

Storm Surge Warning 1007, NWS New Orleans, LA

September 3, 2018Saint Bernard Parish, Louisiana

NWS New Orleans, LA issued this storm surge warning at Sep 3, 2018, 10:34 AM CDT for Saint Bernard Parish, Louisiana. It was in force for 42 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Sep 3, 2018, 10:34 AM CDT (15:34 UTC)
Expired: Sep 5, 2018, 4:05 AM CDT
In force: 42 hr
Issued by: NWS New Orleans, LA

County Saint Bernard Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 3.6 hours before the alert went out and 43 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: 1676 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 602 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 105 m²/s²
0-3 km storm-relative helicity: 82 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 storm surge 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 storm surge warning went out at Sep 3, 9:54 AM CDT, 40 minutes earlier.

Area forecast discussion, Sep 3, 9:54 AM CDT, 40 minutes before

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Hazardous weather outlook, Sep 3, 5:44 AM CDT, 4 hours 50 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
Sep 2, 11:07 PM CDT	Storm Surge Watch	LIX	Saint Bernard	47 hr
Sep 3, 4:28 AM CDT	Tropical Storm Warning	LIX	Assumption, East Baton Rouge, Iberville, Saint Bernard, Saint James, Saint John the Baptist and 3 more	48 hr
Sep 3, 4:45 AM CDT	Flash Flood Watch	LIX	Assumption, East Baton Rouge, East Feliciana, Iberville, Pointe Coupee, Saint Bernard and 7 more	59 hr
Sep 3, 4:11 PM CDT	Special Weather Statement	LIX	West Feliciana	49 min
Sep 3, 4:13 PM CDT	Special Weather Statement	LIX	Saint Charles	47 min
Sep 3, 10:34 AM CDT	Hurricane Watch	LIX		6 hr
Sep 3, 4:32 PM CDT	Hurricane Warning	LIX		33 hr

Nearby

Storm Surge Warnings in Louisiana, 2018 Storm Surge Warnings in Mississippi, 2018 Every storm surge warning in 2018

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.