Alert archive / Louisiana / Coastal Flood Statements in 2015

Coastal Flood Statement 3, NWS New Orleans, LA

October 30, 2015Saint Bernard Parish, Saint John the Baptist Parish, Louisiana

NWS New Orleans, LA issued this coastal flood statement at Oct 30, 2015, 1:15 PM CDT for Saint Bernard Parish, Saint John the Baptist Parish, Louisiana. It took effect at Oct 30, 2015, 7:00 PM CDT. It was in force for 42 hr.

The area

The counties it named.

The facts

Issued
Oct 30, 2015, 1:15 PM CDT (18:15 UTC)
In effect from
Oct 30, 2015, 7:00 PM CDT
Expired
Nov 1, 2015, 12:00 PM CST
In force
42 hr
Issued by
NWS New Orleans, LA

Counties Saint Bernard Parish, LA, Saint John the Baptist Parish, LA

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 6.3 hours before the alert went out and 294 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, Lake Charles Mun, LA at 12:00Z on 2015-10-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Lake Charles Mun, LA at 12:00Z on 2015-10-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1218 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
151 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 coastal flood statement 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 coastal flood statement went out at Oct 30, 8:20 AM CDT, 4 hours 55 minutes earlier.

Area forecast discussion, Oct 30, 8:20 AM CDT, 4 hours 55 minutes before
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Hazardous weather outlook, Oct 30, 3:37 AM CDT, 9 hours 38 minutes before
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

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

IssuedProductOfficeCountiesLasted
Oct 30, 1:26 PM CDTFlash Flood WatchLIXAssumption, East Baton Rouge, East Feliciana, Iberville, Pointe Coupee, Saint Bernard and 7 more50 hr

Nearby

Coastal Flood Statements in Louisiana, 2015Coastal Flood Statements in Mississippi, 2015Every coastal flood statement in 2015

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.