Alert archive / Louisiana / Freeze Warnings in 2014

Freeze Warning 3, NWS New Orleans, LA

January 21, 20148 parishes in Louisiana

NWS New Orleans, LA issued this freeze warning at Jan 21, 2014, 11:40 AM CST for 8 parishes in Louisiana. It took effect at Jan 22, 2014, 12:00 AM CST. It was in force for 8 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 21, 2014, 11:40 AM CST (17:40 UTC)
In effect from: Jan 22, 2014, 12:00 AM CST
Expired: Jan 22, 2014, 8:00 AM CST
In force: 8 hr
Issued by: NWS New Orleans, LA

Counties Assumption Parish, LA, East Baton Rouge Parish, LA, Iberville Parish, LA, Pointe Coupee Parish, LA, Saint Bernard Parish, LA, Saint James Parish, LA, Saint John the Baptist Parish, LA, West Baton Rouge Parish, LA

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 5.7 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2077 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: -37 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 freeze 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 freeze warning went out at Jan 21, 11:18 AM CST, 22 minutes earlier.

Area forecast discussion, Jan 21, 11:18 AM CST, 22 minutes before

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Hazardous weather outlook, Jan 21, 11:27 AM CST, 13 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 21, 3:23 AM CST	Wind Advisory	LIX	Assumption, Saint Bernard, Saint James, Saint John the Baptist, Tangipahoa, Washington	15 hr
Jan 21, 4:29 AM CST	Hard Freeze Warning	LIX	East Feliciana, Saint Helena, Tangipahoa, Washington, West Feliciana	28 hr

Nearby

Freeze Warnings in Louisiana, 2014 Every freeze warning in 2014

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.