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Severe Weather 3/9 - 3/12

*sigh*

WXTwitter is having a meltdown over this 130 rating on this manufactured home. I don't care to speak on the construction quality but I don't understand why it matters so much here to have a 5+ rating. I strive for correct rating but half of them over there are critiquing the NWS and just acting like they're pure dumbos. This community gets more and more egregious. So many think they're the experts over there and some actually do provide helpful knowledge (shoutout to @NickKrasz_Wx)

I'm just sick of so many claiming that they're wrong on everything like tornado warnings (Brad Arnold cough cough), ratings and this and that. You're not the one out there surveying nor are you the one at the desk issuing warnings. Just wish some of them knew that over there. Rant over.
 
WeathermanLeprechaun said:
*sigh*

WXTwitter is having a meltdown over this 130 rating on this manufactured home. I don't care to speak on the construction quality but I don't understand why it matters so much here to have a 5+ rating. I strive for correct rating but half of them over there are critiquing the NWS and just acting like they're pure dumbos. This community gets more and more egregious. So many think they're the experts over there and some actually do provide helpful knowledge (shoutout to @NickKrasz_Wx)

I'm just sick of so many claiming that they're wrong on everything like tornado warnings (Brad Arnold cough cough), ratings and this and that. You're not the one out there surveying nor are you the one at the desk issuing warnings. Just wish some of them knew that over there. Rant over.
Click to expand...
Technically, the correct term here is modular home.

Mobile and manufactured homes are the same thing, only differentiated by the 6/15/1976 HUD deadline. A mobile home manufactured after that date and compliant with HUD regulations is a manufactured home, but most people interchange the terms.

Honestly though, if I were to rate the damage in Lake Village, I'd say 150-155MPH EF3. 130MPH EF2 is low, even bordering on ridiculous, sure... but a modular home is still a prefab, so a violent rating is pretty much out of the question.

Again, EF2 is too low, but the damage is certainly not supportive of the EF4+ rating that some over on wxtwitter are championing.
 
The problem here is that it has been exposed recently that there has been a systemic problem with underrating tornadoes over the past 10-15 years or so and now everything is going to be hyper-fixated upon until that is fixed. Weenies are certainly annoying and should just be quiet generally, but the root cause of all of this was easily avoidable.
 
TH2002 said:
Technically, the correct term here is modular home.

Mobile and manufactured homes are the same thing, only differentiated by the 6/15/1976 HUD deadline. A mobile home manufactured after that date and compliant with HUD regulations is a manufactured home, but most people interchange the terms.

Honestly though, if I were to rate the damage in Lake Village, I'd say 150-155MPH EF3. 130MPH EF2 is low, even bordering on ridiculous, sure... but a modular home is still a prefab, so a violent rating is pretty much out of the question.

Again, EF2 is too low, but the damage is certainly not supportive of the EF4+ rating that some over on wxtwitter are championing.
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This is the type of analysis I mean. If you are to disagree with the survey, there's gotta be well thought out reasons in a respectful manner. That's just all it takes for your argument to be seen as reasonable. Appreciate the correction.
 
andyhb said:
The problem here is that it has been exposed recently that there has been a systemic problem with underrating tornadoes over the past 10-15 years or so and now everything is going to be hyper-fixated upon until that is fixed. Weenies are certainly annoying and should just be quiet generally, but the root cause of all of this was easily avoidable.
Click to expand...
Oh, I mean, weenie complaints are nothing new but I just feel like it's got more egregious and disrespectful the past few years. That's my main problem but this is a regular occurance any time a controversial decision is made. Just feel like the response to this particular rating was very harsh by some. I agree though.
 
Kds86z said:
I realize this is for March 12. And the thread is 3-9 to 3-11, you want to edit it @CheeselandSkies ? Since it went into this morning, multiple tornadoes.
Click to expand...

Done. Although technically those tornadoes occurred during the 3/11 1200-11:59 UTC day that SPC uses, it was only by an hour or so.
 
TH2002 said:
Technically, the correct term here is modular home.

Mobile and manufactured homes are the same thing, only differentiated by the 6/15/1976 HUD deadline. A mobile home manufactured after that date and compliant with HUD regulations is a manufactured home, but most people interchange the terms.
Click to expand...
None of these are substantial structures especially concerning foundations. Post-76 are much better but still aren't equal to an anchored backyard shed. The newest ones with high wind ratings are built with 2X4 walls and plates with real roof trusses above like a site-built home. Modular homes are similar. The problem is that they're built with staples which are thinner than nails, and those hold less in shear. Nearly unskilled labor assembles them quick;y in factories with inadequate inspection procedures using sheet goods which are not of a grade permitted for site-built homes. Only modular homes are placed on real CMU pier foundations and rarely do they have the cells filled with anchoring to the foundation slabs in the ground. Mobile homes rely on dry-stacked CMU's and straps tied to spiral anchors screwed into the soil. Testing has shown that the best modular homes suffer structural failure around 125 MPH, the best mobile homes lose their connection to the ground at about 100MPH, and low-rated units rarely survive past about 80MPH. All of these kinds of homes are rarely set up to that high of a standard which makes them unreliable as windspeed indicators without intensive study of every example which ain't gonna happen anyway.

The 76 change was mainly to allow modular homes to fall under the MH manufacturers inspection scheme which prevents local code inspections for anything other than foundations, anchoring, and utility hook-ups. The factories get a visit once a year where an industry-paid inspector observes the process one day or less then approves the factory for another year. They know when the inspector is coming so approval never fails. Pre-76 mobile homes are cracker-boxes like RV's offering no real protecton from srong winds so cannot be used to indicate anything. IMHO none of these things new or old should be used as DI's due to inconsistencies in building and set-up. The only thing to be learned here is why you don't want to be in any of these during a tornado.
 
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