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re: Big Cold Blast Coming - Round 2

Posted on 12/18/17 at 2:11 pm to
Posted by DVinBR
Member since Jan 2013
15275 posts
Posted on 12/18/17 at 2:11 pm to
quote:

LONG TERM... We should be between systems Thursday which means a dry Thursday...and guidance then also points to another major system in the region this weekend. Still a lot of uncertainty going into the Christmas holiday regarding the timing and strength of the next cold front. Guidance has had a tough time determining if we will be warm or cold for this system. That has a bearing on what kind of weather we can expect obviously. With that being said have maintained a blend in the latter part of the forecast period due to the lack of confidence in the long range forecast. 13/MH
Posted by TDsngumbo
Member since Oct 2011
49206 posts
Posted on 12/18/17 at 2:15 pm to
quote:

The snow the other day knocked out power everywhere.

The snow we had last week was a very heavy, wet snow. That brought lots of trees and limbs down everywhere. Wet snow is heavy, dry snow is very light and powdery.
Posted by TheFonz
Somewhere in Louisiana
Member since Jul 2016
22795 posts
Posted on 12/18/17 at 2:18 pm to
quote:

Ice came down the Mississippi River at that time.


I remember that, too. Fricken' icebergs.
Posted by FelicianaTigerfan
Comanche County
Member since Aug 2009
26059 posts
Posted on 12/18/17 at 2:19 pm to
The snow we had was powder. Like what I’ve experienced in Montana. Kids could roll around in it and their clothes were still dry.

Guess it just packed together better causing more weight
Posted by fishfighter
RIP
Member since Apr 2008
40026 posts
Posted on 12/18/17 at 2:21 pm to
It was powder here too. BR and south had more of a wet snow.
Posted by ell_13
Member since Apr 2013
87205 posts
Posted on 12/18/17 at 2:24 pm to
quote:

The snow we had was powder. Like what I’ve experienced in Montana. Kids could roll around in it and their clothes were still dry.
In West Fel?

The snow in Louisiana was not dry at all. Dry snow doesn't pack or stick to anything. The air has to be very cold and, of course, dry. It doesn't feel heavy and can be wiped off of a car as if it were just a dry pile of leaves.
Posted by FelicianaTigerfan
Comanche County
Member since Aug 2009
26059 posts
Posted on 12/18/17 at 2:28 pm to
When i wipes it off my windshield my windshield was dry. That was around daylight that morning. As the day went on it melted a little and became wet.

Of course it wasn’t complete dry snow but it was the closest I have ever seen here
Posted by ell_13
Member since Apr 2013
87205 posts
Posted on 12/18/17 at 2:30 pm to
The only time I've seen it was in Maryland about 3 or 4 years ago the year that Atlanta was completely shutdown from snow and ice for days. I was there for work and stuck with no way to get home.
Posted by slackster
Houston
Member since Mar 2009
91362 posts
Posted on 12/18/17 at 2:30 pm to
Canadian Model temps for Christmas Morning @ 6AM:



This run suggests the rain will precede the colder air with no wintry mix for LA.
Posted by slackster
Houston
Member since Mar 2009
91362 posts
Posted on 12/18/17 at 2:32 pm to
CONUS Map from 12z Canadian run:



Lots of cold weather...
Posted by Champagne
Sabine Free State.
Member since Oct 2007
53640 posts
Posted on 12/18/17 at 2:33 pm to
Christmas snow is going to happen in Louisiana whether we like it or not!

Posted by TDsngumbo
Member since Oct 2011
49206 posts
Posted on 12/18/17 at 2:36 pm to
quote:

The snow we had was powder. Like what I’ve experienced in Montana. Kids could roll around in it and their clothes were still dry.


Here in Ascension Parish it was wetter and heavier than Kate Upton at an outdoor rain forest all-you-can-eat buffet.
This post was edited on 12/18/17 at 2:38 pm
Posted by ell_13
Member since Apr 2013
87205 posts
Posted on 12/18/17 at 2:37 pm to
Can anyone tell me the temps and rain forecast for Orlando on January 7th?

TIA.
This post was edited on 12/18/17 at 2:38 pm
Posted by CaptainJ47
Gonzales
Member since Nov 2007
7716 posts
Posted on 12/18/17 at 2:44 pm to
Accuweather still calling for 79 degrees on 12/25 for BR
Posted by TDsngumbo
Member since Oct 2011
49206 posts
Posted on 12/18/17 at 2:52 pm to
quote:

Accuweather still calling for 79 degrees on 12/25 for BR

Again, official forecasts will NOT reflect what the models are showing until they consistently begin to show something run after run after run. If you've been following this thread, you'd know that the models have only recently begun to become more consistent over the past 4 or 5 runs. If they stay that way through Wednesday, you'll see the official forecasts begin to reflect it.

Even once they start reflecting what the models are showing, they won't be nearly as dramatic as what the models are showing just because we're in the south - chances are we won't get freezing temps and snow/sleet. Correctly forecasting that type of weather here is a meteorologist's Achilles heel. See the snow event we had on 12/8/17 -- we had local meteorologists predicting a high of 43 with clouds that day. We ended up with 6" of snow on the ground.
This post was edited on 12/18/17 at 2:54 pm
Posted by texag7
College Station
Member since Apr 2014
40686 posts
Posted on 12/18/17 at 2:58 pm to



Posted by TigerstuckinMS
Member since Nov 2005
33687 posts
Posted on 12/18/17 at 3:10 pm to
quote:

CONUS Map from 12z Canadian run:


Kinda looks like a boob.
Posted by Dire Wolf
bawcomville
Member since Sep 2008
39940 posts
Posted on 12/18/17 at 3:46 pm to
quote:

Kinda looks like a boob.
Posted by TDsngumbo
Member since Oct 2011
49206 posts
Posted on 12/18/17 at 3:56 pm to
New GFS run coming out now. Will update ASAP.
Posted by TDsngumbo
Member since Oct 2011
49206 posts
Posted on 12/18/17 at 4:12 pm to
So far, still looking at mid 40's and dry on Christmas Eve for highs. Although rain moves in from the southeast that night and the temps aren't nearly as cold as before.
This post was edited on 12/18/17 at 4:15 pm
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