Jump to content
  • Member Statistics

    17,607
    Total Members
    7,904
    Most Online
    NH8550
    Newest Member
    NH8550
    Joined

January 6-8 2014 arctic attack obs thread...


Marion_NC_WX

Recommended Posts

Do you reckon any bias still shows this close to a now well sensored super cold outbreak?  Now it's just a matter of high placement, terrain, and little things like lakes, mtns and trees, lol, isn't it? Would the mornings 6z still be biased for us even though the rest of the country has been well sampled?   T

 

Tony,

 When comparing MeteoStar to metro Atlanta conditions (not airport), I've seen it sometimes be too cold by a few degrees even for the most up to date run! I know that sounds crazy and almost impossible, but I promise I'm not making this up. Because the Euro is ~5 degrees warmer and because of my concern about a GFS cold bias in some situations, I decided to check out northern Midwest cities carefully today and compare to MeteoStar. Then again, I know the Euro has a warm bias. I know we're talking extreme cold regardless. This is a very exciting time! But since I'm a stats guy, even a few degrees either way is quite interesting to me. It could mean the difference between a once in nearly 30 year occurrence and a once in 11 year occurrence.

 I am keeping in mind that some of this is likely just due to a delay as the honorable Mr. Sutherland confirmed. But even he said in his reply to me that a GFS cold bias could be a factor, too.

Link to comment
Share on other sites

  • Replies 1.3k
  • Created
  • Last Reply

Oh, I know where you are coming from :)  You've got the fire lit, and the abacus clacking for all it's worth, lol.  I hope you can go for a walk after the doc speaks.  Nights like these are only a few in a lifetime, and can't be missed :)  Sudden switch from warmish to cold tonight, and then the Siberian spring slap down tomorrow night, lol.   T

Link to comment
Share on other sites

Why are you using such a low resolution model for events that are within 48 hours? The NAM was warmer than forecast for St Paul, but at the same time colder than the GFS downstream. 

 

 Interesting! We'll see what occurs down our way. Even though the NAM is a higher resolution model and it should be halfway decent within 48 hours, it isn't that accurate overall from what many have said and from what I can tell myself. So, even within 48 hours, I feel the GFS and Euro shouldn't be ignored. I just don't have a lot of confidence with the NAM.

 

 Anyway, I hope it being colder downstream means it is on to something down this way.

Link to comment
Share on other sites

well both ffc and gsp have expanded their advisories a bit - even down towards gainesville and the metro and through ne ga.  should be a wild night as the front moves through to say the least.  maybe most of us can at least see some flakes zipping by in the howling winds :snowing:

Link to comment
Share on other sites

I'm encouraged to see the line down in Ala fattening up a bit.  I'm hoping for something to look at finally, after all these cold chasing rain scenarios.  Oh, wait, that's what this is....again.  Well, hoping the cold out tuns the water, for the first time in forever since these two have been racing in the south, lol.  T

Link to comment
Share on other sites

 Interesting! We'll see what occurs down our way. Even though the NAM is a higher resolution model and it should be halfway decent within 48 hours, it isn't that accurate overall from what many have said and from what I can tell myself. So, even within 48 hours, I feel the GFS and Euro shouldn't be ignored. I just don't have a lot of confidence with the NAM.

 

 Anyway, I hope it being colder downstream means it is on to something down this way.

Well the GFS is a synoptic scale model and the NAM is a mesoscale model so it's wiser to go with the NAM if the event is occurring or even better the RUC. Some do have alternate thoughts though, and that's what makes forecasting fun :) . interesting trends in the models i agree. Feel sorry for those who have early commutes though!  :yikes:

Link to comment
Share on other sites

Yep just to the west of Knoxville in Crossville it is 28 degrees and snowing.

 

It would be nice to see that extreme difference happen in NC for once. But we have mountains to our west to not allow that. Futurecast shows it pretty well. Cold front races to the mountains and then takes its time to get over the mountains with the cold. Most of the precip will be well to the east and then downsloaping winds scatters the snow shower line out. 

 

http://www.intellicast.com/Local/WxMap.aspx?latitude=36.15&longitude=-81.16&zoomLevel=8&opacity=1&basemap=0014&layers=0039

 

 

The CAD may be a few degrees above freezing but it is so difficult to drop with the rain/fog/soupy atmosphere. Mountains may start out 10 degrees warmer and still hit freezing hours before the CAD areas do. 

Link to comment
Share on other sites

Front just moved through with moderate rain and gusty winds. Now the temperature is starting to plummet.

 

 

My school is closed tomorrow.  :snowing:

Dropping like a rock. It hit 50 at 11:47pm and now at 12:04am it is 46. Temp should drop from here down to around 5 degrees tomorrow night. This is an event lol

Link to comment
Share on other sites

Snow still under performing. Cancellation of winter weather advisories still ongoing first in much of TN and now Birmingham, Alabama. Doesn't bode well for Atlanta, GA. A lot of areas are having to cancel.

 

They are canceling cause the front and moisture has ended for them. Wide spread dusting in N AL and one report of half inch. Exactly what was predicted in the advisories.

Link to comment
Share on other sites

 

They are canceling cause the front and moisture has ended for them. Wide spread dusting in N AL and one report of half inch. Exactly what was predicted in the advisories.

 

looks like right over the border in north Alabama seems to have some good little showers. still awaiting the front, not to much longer.

Link to comment
Share on other sites

They are canceling cause the front and moisture has ended for them. Wide spread dusting in N AL and one report of half inch. Exactly what was predicted in the advisories.

 

Okay. I was just reading some Facebook posts from angry people lol. Here it says they cancelled as if they were expecting more than a dusting maybe? Not sure. I know a large area of Tennessee got cancelled earlier due to lower amounts of snow.

 

 
10PM WEATHER UPDATE:

We have cancelled the Winter Weather Advisory. Although some sleet and/or light snow is still possible across the northeastern quarter of Central Alabama, nothing more than a dusting of snow is expected...mainly on decks and vehicles. 

 

 
Link to comment
Share on other sites

 

Okay. I was just reading some Facebook posts from angry people lol. Here it says they cancelled as if they were expecting more than a dusting maybe? Not sure. I know a large area of Tennessee got cancelled earlier due to lower amounts of snow.

 

 
 

 

if thats for alabama they were never supposed to get more than a dusting, maybe an inch in a few spots.  saw pics on james spann blog and there is a good dusting of snow.  i think he said that the cold air didnt rush in fast enough to flash freeze the roads. 

 

MADDOG - if that line on the radar is still the front it looks like its right on your doorstep lol

Link to comment
Share on other sites

Reading some of the disappointment to our west, lol. I would hate to have to post anything on Facebook about something being cancelled. Good lord...

 

**** **** Can't you ppl get it right... You get everybody geared up, then, oh by the way we were wrong. Why don't you just say, we don't know, before the county waste a bunch of brine and road salt.
7 hours ago via mobile · Like · 2

 

US National Weather Service Nashville Tennessee All, please stay on topics related to weather. Name calling will not be tolerated. Thanks!
5 hours ago · Like · 7
Link to comment
Share on other sites

 

Reading some of the disappointment to our west, lol. I would hate to have to post anything on Facebook about something being cancelled. Good lord...

 

 

US National Weather Service Nashville Tennessee All, please stay on topics related to weather. Name calling will not be tolerated. Thanks!
5 hours ago · Like · 7

 

lol - well sounds like someone has been getting nasty comments/calls hahaha.  i dont really know what it was supposed to do in nashville.  so they may have had a snow bust.

 

the mtns tend to keep the cold air delayed imby but since its a once in a 20 or 30 year event might as well stay up a little later than usual and check it out :drunk:

Link to comment
Share on other sites

I'm still going up.  Now at 55.  Looking forward to the U turn coming up :) 

  When has cold chasing rain ever worked.  Rain always wins, lol.  Maybe the west side of hills will flash freeze.  I've seen that all the way to Bham.  Going up the east side was fine, going down the otherside was something different :) T

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.

×
×
  • Create New...