Texas Winter 2021-2022

[wxman57]

Oh, pay no attention to that 4.6 magnitude earthquake a couple hours ago along the OK/KS border. I decided to add another wall up there. Had to use some fairly large explosives. I'm done blasting for the wall base now.

[harp]

I just learned from a friend that the latest Euro does give a little hope to those of us in south Louisiana.

Well, the Euro seems to be performing the worst but I am curious. Which parts of south Louisiana and what is it showing?

I’m west of New Orleans. Showing some spotty light accumulation.

[jaguars_22]

Euro showed an upper low forming over San Antonio and Victoria headed northeast. Is that the only models showing a mix on Saturday? Is the upper low even legit?

[wxman57]

I just learned from a friend that the latest Euro does give a little hope to those of us in south Louisiana.

Well, the Euro seems to be performing the worst but I am curious. Which parts of south Louisiana and what is it showing?

I’m west of New Orleans. Showing some spotty light accumulation.

Refrain from holding your breath, as surface temperatures should be well above freezing.

[harp]

Well, the Euro seems to be performing the worst but I am curious. Which parts of south Louisiana and what is it showing?

I’m west of New Orleans. Showing some spotty light accumulation.

. I’m not holding my breath. I think you’ve constructed your wall on the Texas/Louisiana border. It pretty much stops there and just slowly filters through. As a general rule over the years, whatever S and SE Texas gets, we get here the next day. Doesn’t seem to be the case this time…

[BigB0882]

Well, the Euro seems to be performing the worst but I am curious. Which parts of south Louisiana and what is it showing?

I’m west of New Orleans. Showing some spotty light accumulation.

Refrain from holding your breath, as surface temperatures should be well above freezing.

This is what I figured, not supposed to get cold enough here until well after the precip passes. It would take a Gulf low to pop at just the right time overnight Friday night, I would think.

[gboudx]

Was driving around Rockwall earlier and the roads have been pretreated. Serious question, what is the point of it? Is it supposed to be effective against a certain amount of ice? Any time I've seen this done, and then we get a good amount of wintry precip, I've never seen the roads safe or devoid of ice.

[wxman57]

Was driving around Rockwall earlier and the roads have been pretreated. Serious question, what is the point of it? Is it supposed to be effective against a certain amount of ice? Any time I've seen this done, and then we get a good amount of wintry precip, I've never seen the roads safe or devoid of ice.

The rain ahead of the freezing rain and sleet should should take care of that pre-treatment.

[Ntxw]

Was driving around Rockwall earlier and the roads have been pretreated. Serious question, what is the point of it? Is it supposed to be effective against a certain amount of ice? Any time I've seen this done, and then we get a good amount of wintry precip, I've never seen the roads safe or devoid of ice.

Typical winter storm, can help more than not. Lowers binding temp to roads down to something in the teens. From what I've read the solution is rendered basically useless if it rains before ice/snow which is pretty much what will happen. Wash it all away.

[Haris]

NAM now S of GFS and coming in hot!

[EnnisTx]

Was driving around Rockwall earlier and the roads have been pretreated. Serious question, what is the point of it? Is it supposed to be effective against a certain amount of ice? Any time I've seen this done, and then we get a good amount of wintry precip, I've never seen the roads safe or devoid of ice.

Winter storms, anti-icing is the practice of applying brine before precipitation to prevent the development of bonded snow and ice on the road surface. Salt brine is effective to -6 degrees Fahrenheit and is a proven anti-icing agent. By spreading freezing point depressant materials before a storm, it is possible to prevent the bond from forming between the roadway and snow or ice. The water part of the brine evaporates, and the salt that remains helps prevent ice from forming a bond with the roadway. Salt brine also adheres to the roadway and is not blown off by vehicles driving on the road.

Research has shown that timely applications of anti-icing materials can cut the cost of maintaining a safe road surface by 90 percent compared to traditional deicing. Advantages of spraying brine before storms include a faster return to normal road surfaces, a reduction in airborne salt particles, a better application to roadway surfaces, increased efficiency in snow and ice removal resulting in less deicer and manpower. In addition, salt needs to be moist to be effective, and applying brine accelerates the melting process.

However, anti-icing is not a silver bullet, and it is not an effective approach when a winter storm is forecast to start as rain as rain will wash the material away or when enough salt residue from a previous storm remains.

[orangeblood]

NAM now S of GFS and coming in hot!

Yep, this is coming into its Strike Zone...several ensemble members are showing are much more robust ULL swinging through. Note: the Euro looks so lost right now with its depiction of the upper levels - Major Coup or its just flat out terrible during setups like this. Feb 21' was one of the worst performances I've ever witnessed, that model has some issues

Check out the difference at 500mb for Thursday

[rwfromkansas]

Back north in KS, they used both salt brine and salt pellets plus sand. That was much more effective than the "treatment" they do in Texas.

[EnnisTx]

Was driving around Rockwall earlier and the roads have been pretreated. Serious question, what is the point of it? Is it supposed to be effective against a certain amount of ice? Any time I've seen this done, and then we get a good amount of wintry precip, I've never seen the roads safe or devoid of ice.

Typical winter storm, can help more than not. Lowers binding temp to roads down to something in the teens. From what I've read the solution is rendered basically useless if it rains before ice/snow which is pretty much what will happen. Wash it all away.

Yes Sir, for it to be effective it would need to transition from rain to frozen precipitation fairly quick to be of benefit.

[jaguars_22]

The Nam has a strike zone? Last week when south texas was supposedly getting ice we got nada! And the Nam only hours out kept showing an ice storm break out. I think the Nam’s strike zone is gone

[Iceresistance]

Joe B has a good Tweet, but I can't post it here since it includes Politics!

[Cerlin]

Yeah the heavier precipitation amounts are trending southward on the 18z NAM. Total QPF went from about .5 to 1 for Norman/OKC and from .75 to 1.5 for a bulk of DFW. Amazing trends…except for freezing rain potential, that’s not good.

[orangeblood]

The Nam has a strike zone? Last week when south texas was supposedly getting ice we got nada! And the Nam only hours out kept showing an ice storm break out. I think the Nam’s strike zone is gone

Lol Well at least better than anything the Euro has to offer at this range

[Brent]

I just got NAM'ed

[EnnisTx]

Back north in KS, they used both salt brine and salt pellets plus sand. That was much more effective than the "treatment" they do in Texas.

Texas pre treats with brine to lower the freezing point of the water/precipitation and then uses Magnesium Chloride to melt the ice that forms and it works well. They also use sand as conditions warrant. I was a part of this process for many years.