Texas Winter 2018-2019

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Ntxw
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Re: Texas Winter 2018-2019

#261 Postby Ntxw » Sat Dec 01, 2018 12:33 pm

You know the Northeast folks are watching this like a hawk also. A bigger, snowier storm in Texas also likely translates to a KU nor'easter event for them.
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Re: Texas Winter 2018-2019

#262 Postby Cpv17 » Sat Dec 01, 2018 1:09 pm

Ntxw wrote:You know the Northeast folks are watching this like a hawk also. A bigger, snowier storm in Texas also likely translates to a KU nor'easter event for them.


Snow totals in Missouri over 2 feet on that run lol
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Re: Texas Winter 2018-2019

#263 Postby TeamPlayersBlue » Sat Dec 01, 2018 1:26 pm

www.fantasyblizzard.com I just signed up, looks like lots of fun!
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Re: Texas Winter 2018-2019

#264 Postby Brent » Sat Dec 01, 2018 1:28 pm

Ntxw wrote:FV3 is colder than the GFS. Everything is west and North of DFW but is a blizzard for West, NW Texas, and Oklahoma.

7 days out! Don't be in the bulls-eye :lol:


Yeah being in the bullseye 7 days out doesn't usually work :lol:
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Re: Texas Winter 2018-2019

#265 Postby Ntxw » Sat Dec 01, 2018 1:41 pm

12z Euro looks a lot like the FV3 and a tad colder than 0z. Now just get this thing inside 100 hours. 144+ hours still...Going to be another long week with gnashing of teeth.

One thing I am noticing (given far out caveat per usual) the models are developing surface low in Central and Southeast Texas. Generally there is a sharp cutoff once you get inside very high resolution instead of the broad qpf shield. This is why you don't want to be in the bulls-eye 7 days out. If that surface low track manifests, historically the precip shield doesn't end up much north of the Red River. Okahoma storms usually have a surface low that travels from Lubbock->Dallas->Texarkana.
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Re: Texas Winter 2018-2019

#266 Postby srainhoutx » Sat Dec 01, 2018 1:46 pm

Saturday midday briefing from Jeff:

Overall pretty much a temperature forecast for the next several days as moisture has been scoured out of the area by recent frontal passages.

Temperatures today and Sunday will run near to above normal with clear skies and a dry air mass in place with highs in the 70’s and lows in the 40’s and 50’s. A stronger cold front will move across the area late Sunday into early Monday with strong cold air advection and a noticeable drop in temperatures. Highs Monday-Tuesday will drop into the 50’s with lows falling back into the 30’s and 40’s over the region. Could see a light freeze Tuesday or Wednesday morning over our northern and northeastern counties. Southerly flow begins to return to the area on Wednesday with moisture deepening. Not expecting any rainfall today-Wednesday.

Late Next Week:
Forecast models including the GFS, ECMWF, and CMC all pointing to a fairly strong storm system digging far south into northern MX and then ejecting eastward across TX around Friday-Saturday. There are still some timing differences…although the major global models are really not that far apart from each other…pointing toward a Friday afternoon into early Saturday event. Models are however handling a surging arctic cold front differently and track of a surface low pressure system differently as one would expect at this long range. CMC is much faster with the intrusion of a shallow cold air mass down the plains and into TX and has much more winter precipitation across NC/NW TX where the GFS and ECMWF is slower and warmer. Will side with the ECWMF and GFS solutions for now, but these shallow cold air masses tend to plow southward faster than models usually suggest and this could make for a tricky temperature forecast on Friday with a warm and humid air mass near the coast and a cold arctic air mass sliding into our NW counties. Looks to be plenty of moisture with this system with the most recent GFS run showing a rainfall at IAH of around 3 inches and both the ECWMF and CMC models are also fairly wet. Formation and track of the surface low/coastal trough near the coast or inland this time may bring both a heavy rainfall and possible severe threat. Still some questions to be answered and models this time of year tend to overdo longer range depths of systems…so something to watch for the Thursday-Saturday time period.
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Re: Texas Winter 2018-2019

#267 Postby Cpv17 » Sat Dec 01, 2018 2:12 pm

Not much rain on that run of the Euro south of I-10.
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Re: Texas Winter 2018-2019

#268 Postby spencer817 » Sat Dec 01, 2018 3:13 pm

NWS Forecaster's discussion is interesting:

Isolated to scattered light showers may begin to develop across
the area on Thursday as warm advection begins to increase ahead of the aformentioned disturbance. Precipitation coverage willgradually expand through Thursday night as forcing slowly ticks upwards. At the same time, an arctic cold front is forecast to
drop swiftly southward through the Great Plains, and may be
knocking on our doorstep as early as late Thursday night. The
speed/progression and depth/magnitude of the cold air associated
with this next front will obviously play a crucial role in our
forecast towards the end of the week. Forecast soundings show the
associated frontal inversion may only be about 1 kft deep, and
coarse resolution guidance does tend to have a hard time handling
the southward push of these dense, cold, and shallow airmasses.
For now, we`ll just be indicating a cold rain through Friday and
Friday night. In addition, instability may be just high enough to
support some thunder ahead of the cold front, so we`ll indicate
embedded isolated storms across much of the region on Friday.
While this system looks quite dynamic, moisture and instability
return looks pretty meager at this point which should help keep
the severe threat relatively low.
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Re: Texas Winter 2018-2019

#269 Postby TheProfessor » Sat Dec 01, 2018 3:21 pm

Ntxw wrote:You know the Northeast folks are watching this like a hawk also. A bigger, snowier storm in Texas also likely translates to a KU nor'easter event for them.


It's going to be a tricky system for those north of the mid-Atlantic. If the timing is wrong the storm will likely either become suppressed or the storm is late and the cold air retreats.
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Re: Texas Winter 2018-2019

#270 Postby Brent » Sat Dec 01, 2018 5:21 pm

the GFS is so warm lol. Even most of Oklahoma is rain. Can't help and think of all those times the GFS has missed the cold before
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Re: Texas Winter 2018-2019

#271 Postby Ntxw » Sat Dec 01, 2018 5:34 pm

Brent wrote:the GFS is so warm lol. Even most of Oklahoma is rain. Can't help and think of all those times the GFS has missed the cold before


Yeah. Cold dome comes Thursday and that's likely the day we get cold timing right.

18z GFS warm (relative to snow) but storm is colder than 12Z
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Re: Texas Winter 2018-2019

#272 Postby Ntxw » Sat Dec 01, 2018 5:39 pm

Below are the panels for 12z SAT for the latest GFS/FV3/Euro/CMC. You can see timing, depth of cold aloft, ejection location is not in lock step. Lots of changes to be had.

Image

Image

Image

Image
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Re: Texas Winter 2018-2019

#273 Postby Brent » Sat Dec 01, 2018 6:29 pm

the FV is close to snowing Saturday Night, still a week out
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Re: Texas Winter 2018-2019

#274 Postby TeamPlayersBlue » Sat Dec 01, 2018 9:28 pm

Still a bit of ways out but the Euro is so diff from the GFS
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Re: Texas Winter 2018-2019

#275 Postby BTAYLOR5021 » Sat Dec 01, 2018 11:45 pm

Can someone please advise why the temps are warmer for N Texas vs the southeast. Dallas and ATL are same latitude yet Atl is mostly colder and have been getting more winter storms the passed few years.
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Re: Texas Winter 2018-2019

#276 Postby Brent » Sat Dec 01, 2018 11:55 pm

BTAYLOR5021 wrote:Can someone please advise why the temps are warmer for N Texas vs the southeast. Dallas and ATL are same latitude yet Atl is mostly colder and have been getting more winter storms the passed few years.


a lot of it is just luck honestly as it always is with snow in this part of the country... I'm from back east not far from Atlanta and its just as hard if not harder to get winter storms there, but the pattern just has lined up better for them especially last year. They've had plenty of years with nothing too. We'll make up for it eventually, just like when Dallas had the footer some years ago. I lived there 25+ years and had exactly one storm over 3 inches...
Last edited by Brent on Sun Dec 02, 2018 12:17 am, edited 3 times in total.
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Re: Texas Winter 2018-2019

#277 Postby spencer817 » Sun Dec 02, 2018 12:12 am

GEFS ensembles are the best they have been for DFW!!! :D
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Re: Texas Winter 2018-2019

#278 Postby Cpv17 » Sun Dec 02, 2018 12:56 am

BTAYLOR5021 wrote:Can someone please advise why the temps are warmer for N Texas vs the southeast. Dallas and ATL are same latitude yet Atl is mostly colder and have been getting more winter storms the passed few years.


+PNA .. here in Texas we need a neutral to slightly negative PNA to get some fun.
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Re: Texas Winter 2018-2019

#279 Postby Brent » Sun Dec 02, 2018 1:01 am

spencer817 wrote:GEFS ensembles are the best they have been for DFW!!! :D


noticed that and also the op GFS has gotten colder today each run Friday Night
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Re: Texas Winter 2018-2019

#280 Postby spencer817 » Sun Dec 02, 2018 1:15 am

Brent wrote:
spencer817 wrote:GEFS ensembles are the best they have been for DFW!!! :D


noticed that and also the op GFS has gotten colder today each run Friday Night


GEFS also dropped mean temps Friday from 50 to 41! Talk about a shift.
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