Alert archive / Mississippi / Freeze Warnings in 2014

Freeze Warning 9, NWS New Orleans, LA

March 25, 2014Tangipahoa Parish, Washington Parish, Louisiana; 4 counties in Mississippi

NWS New Orleans, LA issued this freeze warning at Mar 25, 2014, 3:34 PM CDT for Tangipahoa Parish, Washington Parish, Louisiana; 4 counties in Mississippi. It took effect at Mar 26, 2014, 4:00 AM CDT. It was in force for 4 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
Mar 25, 2014, 3:34 PM CDT (20:34 UTC)
In effect from
Mar 26, 2014, 4:00 AM CDT
Expired
Mar 26, 2014, 8:00 AM CDT
In force
4 hr
Issued by
NWS New Orleans, LA

Counties Tangipahoa Parish, LA, Washington Parish, LA, Amite County, MS, Pearl River County, MS, Pike County, MS, Walthall County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.6 hours before the alert went out and 93 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 12:00Z on 2014-03-25Temperature 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, Slidell Radar S, LA at 12:00Z on 2014-03-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -226 square meters per square second.1939587897117136Sfc1 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
1980 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
-226 m²/s²
0-3 km storm-relative helicity
-60 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 Mar 25, 12:16 PM CDT, 3 hours 18 minutes earlier.

Area forecast discussion, Mar 25, 12:16 PM CDT, 3 hours 18 minutes before
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Hazardous weather outlook, Mar 25, 11:42 AM CDT, 3 hours 52 minutes before
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      <h1 id="headline">This service is currently unavailable.</h1>
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        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
Mar 25, 11:39 AM CDTRed Flag WarningLIXAmite, Hancock, Harrison, Jackson, Pearl River, Pike and 2 more7 hr

Nearby

Freeze Warnings in Mississippi, 2014Freeze Warnings in Louisiana, 2014Every 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.