Alert archive / Louisiana / Coastal Flood Statements in 2009

Coastal Flood Statement 9, NWS New Orleans, LA

December 2, 2009Saint Bernard Parish, Saint John the Baptist Parish, Louisiana

NWS New Orleans, LA issued this coastal flood statement at Dec 2, 2009, 3:37 AM CST for Saint Bernard Parish, Saint John the Baptist Parish, Louisiana. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Dec 2, 2009, 3:37 AM CST (09:37 UTC)
Expired
Dec 2, 2009, 8:00 AM CST
In force
4 hr
Issued by
NWS New Orleans, LA

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

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 9.6 hours before the alert went out and 51 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 00:00Z on 2009-12-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 00:00Z on 2009-12-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 276 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
413 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
276 m²/s²
0-3 km storm-relative helicity
789 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
Dec 1, 7:02 PM CSTSpecial Marine WarningLIX58 min
Dec 1, 7:41 PM CSTSpecial Marine WarningLIX64 min
Dec 1, 7:47 PM CSTSpecial Marine WarningLIX28 min
Dec 2, 12:40 AM CSTSpecial Marine WarningLIX65 min
Dec 2, 1:15 AM CSTSpecial Marine WarningLIX60 min
Dec 2, 1:42 AM CSTSpecial Marine WarningLIX93 min
Dec 2, 3:14 AM CSTSpecial Marine WarningLIX91 min
Dec 1, 9:12 PM CSTCoastal Flood WarningLIX6 hr

Nearby

Coastal Flood Statements in Louisiana, 2009Coastal Flood Statements in Mississippi, 2009Every coastal flood statement in 2009

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.