Alert archive / Louisiana / Flash Flood Warnings in 2013

Flash Flood Warning 5, NWS New Orleans, LA

January 9, 2013Livingston Parish, Louisiana

NWS New Orleans, LA issued this flash flood warning at Jan 9, 2013, 10:15 AM CST for Livingston Parish, Louisiana. It was in force for 3 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: Jan 9, 2013, 10:15 AM CST (16:15 UTC)
Expired: Jan 9, 2013, 1:15 PM CST
In force: 3 hr
Issued by: NWS New Orleans, LA
Area: Storm-based polygon
Flood severity: None

County Livingston Parish, LA

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 4.3 hours before the alert went out and 218 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: 10 J/kg
Mixed-layer CIN: -105 J/kg
Mixed-layer LCL: 444 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 174 m²/s²
0-3 km storm-relative helicity: 392 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at Jan 9, 6:35 AM CST, 3 hours 40 minutes earlier.

Area forecast discussion, Jan 9, 6:35 AM CST, 3 hours 40 minutes before

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Hazardous weather outlook, Jan 9, 5:18 AM CST, 4 hours 57 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
Jan 8, 9:18 PM CST	Areal Flood Advisory	LIX	Ascension, Assumption, East Baton Rouge, East Feliciana, Iberville, Jefferson and 13 more	168 days
Jan 8, 9:19 PM CST	Small Craft Advisory	LIX		9 hr
Jan 9, 12:22 AM CST	Special Marine Warning	LIX		38 min
Jan 9, 12:36 AM CST	Flash Flood Warning	LIX	Ascension, East Baton Rouge, Iberville, Livingston	3 hr
Jan 9, 12:57 AM CST	Areal Flood Advisory	LIX	Tangipahoa	2 hr
Jan 9, 1:00 AM CST	Special Marine Warning	LIX		60 min
Jan 9, 1:06 AM CST	Flash Flood Warning	LIX	Assumption, Lafourche, Saint James, Saint John the Baptist, Terrebonne	3 hr
Jan 9, 2:02 AM CST	Special Marine Warning	LIX		88 min
Jan 9, 3:13 AM CST	Special Marine Warning	LIX		62 min
Jan 9, 3:28 AM CST	Flash Flood Warning	LIX	Livingston	3 hr
Jan 9, 3:33 AM CST	Areal Flood Advisory	LIX	Ascension	117 min
Jan 9, 5:35 AM CST	River Flood Warning	LIX	East Baton Rouge	3 days
Jan 9, 5:35 AM CST	River Flood Warning	LIX	East Baton Rouge, Livingston	7 days
Jan 9, 5:35 AM CST	River Flood Warning	LIX	East Baton Rouge	10 days
Jan 9, 5:37 AM CST	River Flood Warning	LIX	Tangipahoa	10 days
Jan 9, 5:38 AM CST	River Flood Warning	LIX	Saint Tammany	9 days
Jan 9, 5:41 AM CST	River Flood Warning	LIX	Saint Tammany	5 days
Jan 9, 7:55 AM CST	River Flood Warning	LIX	Saint Tammany	14 hr
Jan 9, 7:56 AM CST	Flash Flood Warning	LIX	Livingston	109 min
Jan 9, 9:06 AM CST	Marine Dense Fog Advisory	LIX		25 hr
Jan 9, 9:08 AM CST	Dense Fog Advisory	LIX	Saint Bernard, Saint James, Saint John the Baptist	21 hr
Jan 9, 12:45 PM CST	River Flood Warning	LIX	Livingston	5 days
Jan 9, 1:30 PM CST	Areal Flood Advisory	LIX	Livingston	6 hr
Jan 9, 1:45 PM CST	River Flood Warning	LIX	Saint Tammany	11 days
Jan 9, 2:00 PM CST	River Flood Warning	LIX	Saint Helena	3 days
Jan 9, 3:00 PM CST	Coastal Flood Advisory	LIX	Saint Bernard, Saint James, Saint John the Baptist	25 hr
Jan 9, 4:11 PM CST	Small Craft Advisory	LIX		38 hr
Jan 9, 5:12 PM CST	River Flood Warning	LIX	Tangipahoa	64 hr

Nearby

Flash Flood Warnings in Louisiana, 2013 Every flash flood warning in 2013

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.