Severe WX December 29 & 30, 2021 Severe Threat

[Kim30]

Sun is out here in SW Limestone Co., but it's only 61. I take it that's going to change soon?

 

[Mike S]

Sun is out here in SW Limestone Co., but it's only 61. I take it that's going to change soon?

Probably. I've been watching weather stations in Haleyville and Hartselle and those temps(and dewpoints) have increased a few degrees

 

[Richardjacks]

Radar pic in this tweet of the rotation.

The length of that warning!

 

[bwalk]

Significant differences in TDs north & south of the surface boundary in N. Alabama (per MCD #2075)

North of boundary: 59/57, 61/59, etc

South of boundary: 73/63, 74/67, 81/66

 

[bwalk]

The length of that warning!

Agree on the warning length. I think 12/10 is still fresh on their mind (as well as the rest of us).

 

[CheeselandSkies]

Of COURSE the storms of interest would form right in the worst radar hole possible, roughly equidistant from KLZK, KNQA, KDGX, and KSHV. They will take their time moving appreciably closer to any of them (most likely NQA, then eventually DGX and GWX).

 

[CheeselandSkies]

Storm approaching McGehee/Arkansas City looks interesting, only a SVR on it at the moment but it's discrete for the time being and has some hints of a mid-level couplet.

 

[TH2002]

Apparently the NWS told Congress last year that the swiss cheese radar coverage in places like Mississippi has "no significant negative impact” to their ability to issue warnings. I guess that's why they figure the horrible radar coverage is "good enough" and they choose to get by with it.

 

[CheeselandSkies]

Apparently the NWS told Congress last year that the swiss cheese radar coverage in places like Mississippi has "no significant negative impact” to their ability to issue warnings. I guess that's why they figure the horrible radar coverage is "good enough" and they choose to get by with it.

So what happens when the only radar that can see a storm below 10,000' goes down during a severe weather event, or at least loses its ability to distribute data as happened to KPAH on 12/10?

 

[TH2002]

So what happens when the only radar that can see a storm below 10,000' goes down during a severe weather event, or at least loses its ability to distribute data as happened to KPAH on 12/10?

I guess having a backup plan isn't very high on their agenda.

 

[JPWX]

Apparently the NWS told Congress last year that the swiss cheese radar coverage in places like Mississippi has "no significant negative impact” to their ability to issue warnings. I guess that's why they figure the horrible radar coverage is "good enough" and they choose to get by with it.

Yeah. They apparently want to fund other things besides life saving stuff like radars etc. Throwing it towards warming....

 

[TCLwx]

Storm approaching McGehee/Arkansas City looks interesting, only a SVR on it at the moment but it's discrete for the time being and has some hints of a mid-level couplet.

Looks like it wants to spin. [insert comment about being in radar hole]

 

[TCLwx]

From LZK:

​

Source: PUBLIC UTC Valid: 2021-12-29T20:43:00Z​

Remark: REPORT OF BROKEN WINDSHIELD ON CAR DRIVING ON HIGHWAY 425 SOUTH OF MONTICELLO.​

 

[Richardjacks]

Gonna have to watch for some mergers downstream

 

[MattPetrulli]

Think the cell near Houston MS/Calhoun City, MS is the one to watch. In open air, near boundary, and exhibits weak rotation already.

 

[Equus]

New tornado watch N AL, 50/60 probs

 

[Jetstream]

here's the outline

 

[CheeselandSkies]

Kind of a snoozer so far, but SPC says don't let your guard down just yet:

Storm Prediction Center Mesoscale Discussion 2077

Severe weather, tornado, thunderstorm, fire weather, storm report, tornado watch, severe thunderstorm watch, mesoscale discussion, convective outlook products from the Storm Prediction Center.

www.spc.noaa.gov

 

[Weatherphreak]

If the storms need Greenwood and SW of Tupelo can get going they may have some room to roam until the line eats them up.

 

[buckeye05]

That cell near Houston, MS definitely has that look, but everything else is still looking fairly messy for now.