Christmas weather storm updates: 6 deaths,40+homes damaged with "numerous injuries !!!

AccuWeather.com‏@breakingweather

PDS tornado watch has been issued for southern Mississippi, eastern Louisiana, SW Alabama. [link to ow.ly]

3 minAccuWeather.com‏@breakingweather

Storms with the potential to produce tornadoes will be moving into southern Mississippi soon. [link to ow.ly]

18 minAccuWeather.com‏@breakingweather

Radar-indicated tornado heading toward Alexandria, La.; take cover!

Severe Studios‏@severestudios

PDS (Particularly dangerous situation) Tornado Watch issued AL LA MS [link to 1.usa.gov]

Severe Studios‏@severestudios

Tornado Warning for Catahoula and Concordia Parish in LA until 2:15pm CST. #lawx

From Wiki:

PDS tornado watches are issued when there is a higher than normal risk of multiple strong, violent tornadoes in the watch area (usually amounting to damage consistent with EF4 or EF5 tornadoes), also including significant wind and hail damage, when in addition to tornadoes. While there are no set criteria for a PDS watch to be issued, they are usually issued when the potential exists for a major tornado outbreak. They represent about 90% of PDS watches issued.

PDS severe thunderstorm watches are issued when there is a higher than normal risk of severe thunderstorm winds capable of major structural damage (in addition to large hail and perhaps a few isolated tornadoes), usually due to a strong and persistent derecho. These watches are very rare (an average of only two each year), as the risk for tornadoes must remain low enough to not warrant a tornado watch (a normal tornado watch would be issued if the tornado risk is significant alongside the extreme wind threat).[2]

PDS flash flood watches are issued when there is a higher than normal risk of widespread, life-threatening flash flooding. These watches are issued by the NWS Local Forecast Offices, not the Storm Prediction Center.

PDS tornado warnings are currently issued on an experimental basis by five Forecast Offices in Kansas and Missouri. The criteria for a PDS warning is when a tornado on the ground has been spotted or confirmed, or a significant tornado is expected (due to radar signatures). The intention of this experimental warning may be to replace the loosely-defined tornado emergency. These are the first warnings issued with PDS wording, and like PDS flash flood watches, are issued by local forecast offices.

NWS MOB-

18Z weather balloon sounding from Slidell, LA shows the atmosphere is becoming loaded with ingredients for strong tornadoes and significantly large hail. Conditions are becoming conducive for supercell thunderstorm generation. We are also noting mid-level echoes on the radar are picking up...might not be too much longer before we start seeing storms appear in our area.
A new PDS Tornado Watch has just been issued for a portion of our area. PDS = Particularly Dangerous Situation (these are not issued very often). [link to www.spc.noaa.gov]

What's up, Prairieville? I was down that way a couple of weeks ago when the tornado destroyed the fire station on 44. Got some pics just after it happened. I'm just up the way from you near the new Woman's Hospital. Looks like a bumpy ride coming our way. Stay safe.

Vincent Webb‏@vince_webb

Funnel cloud coming over Jackson Airport! Very short-lived! @NWSJacksonMS @severestudios @brandoneoc [link to instagr.am]

AccuWeather.com‏@breakingweather

Ice pellets mixing in at Dallas-Fort Worth Airport; white Christmas about to start

AccuWeather.com‏@breakingweather

Preliminary tornado report is 4 so far today. I funnel cloud and 72 mph wind gust at Jackson, MS.

TWC Breaking ‏@TWCBreaking
Fence blown down at @NWSJacksonMS office. 72 mph gust at Jackson, MS Int'l Airport. Squall line still west: [link to wxch.nl]
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5m NWS Jackson MS ‏@NWSJacksonMS
There was a 72 mph wind gust here at our office at 1:22pm. A fence was blown down at our office.

AccuWeather.com‏@breakingweather

Injuries and up to 40 homes damaged in Rapides Parish. Tornado warning was out at the time the damage occurred.

TWC Breaking ‏@TWCBreaking
Rapides Parish law enforcement says 25-30 homes damaged with "numerous injuries" in Ball, LA. Locator: [link to wxch.nl]

Severe Studios‏@severestudios

Tornado Warning for Wilkinson County in MS until 2:45pm CST. #mswx

2 minSevere Studios‏@severestudios

Tornado Warning for East Feliciana, Pointe Coupee, and West Feliciana Parish in LA until 2:45pm CST. #lawx

Most recent SPC convective outlook removes Texas from the Moderate risk and does not expand it eastward. [link to kamala.cod.edu]

Severe Studios‏@severestudios

Tornado Warning for Franklin and Lincoln County in MS until 2:45pm CST. #mswx

Severe Studios‏@severestudios

Tornado Warning for Franklin and Lincoln County in MS until 2:45pm CST. #mswx

Severe Studios‏@severestudios

Tornado Warning for Lafourche, St. Charles, St. James and St. John The Baptist Parish in LA until 2:30pm CST. #lawx

There's a clear rotation on NWS radar in Mississipi (look at orange circle) [link to i.imgur.com]

Severe Studios‏@severestudios

Tornado Warning for St. Tammany, Tangipahoa, and Washington Parish in LA until 2:45pm CST. #lawx