Monster tornado

Do you work for an employer that does not provide a storm shelter? My employer does and it is a solid tunnnel.

As for southern houses, we put in a storm cellar on a house we had in Duncan, Oklahoma. Cost - $2000 - year 1981. Had a bed, snacks, games and radio. Spent a few evenings with kids until all clear. Caliche and or water table was not a construction issue. Being cheap is the usual culprit.
$2000 in 1981 is over $6000 today. Think of the people you know today who don't have their own storm shelter or basement. How many of them do you estimate could come up with $6000 in time to start construction this spring?
 
$2000 in 1981 is over $6000 today. Think of the people you know today who don't have their own storm shelter or basement. How many of them do you estimate could come up with $6000 in time to start construction this spring?
You are probably right. They would have to forego a tricked out F150 in order to protect their family.
 
FYI, in 2018 updated building codes started requiring FEMA rated storm shelters in new schools. So even though a school might have a designated storm area, there is a good chance it isn't a hardened shelter.

Also I know some were opposed to this because of cost increases to projects.
 
  • Like
Reactions: Dr.bannedman
I measure barometric pressure at our house, especially in the early winter and Friday night in southern Iowa tied for the record low pressure. Whenever we get that, there are tornado warnings east and south.
 
Here is an awesome article on the shift of tornado alley into the dixie alley since ~1979

https://www.nature.com/articles/s41612-018-0048-2

41612_2018_48_Fig4_HTML.png
 
I'm not a climate change denier but the other night they showed a graphic on KCCI I think and probably 5 out of the 6 warmest days in December in Iowa occurred from the 1920s-1950s.
Time will tell but temp and fronts are not the real triggers of storms like these.
Seems like the big reason for the intensity of this storm was the difference in wind speed between the jet stream and the ground level wind, which created ideal conditions for tornadoes, and it was fed by the warm, moist air.
 
Another issue with shelters is when to go. You aren’t going to just sit there every time a watch comes out. How close is it? Is it open? Etc.
While FEMA concrete shelters for schools seem like a no-brainer, I saw a study that showed that 90% (or higher) of tornadoes happen at a time of day or time of year when kids are not in school. No one wants to jeopardize kids' safety, but sometimes, the money spent on the concrete shelters could be better spent on other safety issues and safer facilities.
 
Last edited:
While FEMA concrete shelters for schools seem like a no-brainer, I saw a study that showed that 90% (or higher) of tornadoes happen at a time of day or time of year when kids are not in school.

funding/grants for FEMA shelters revolves around how many people (schools AND surrounding houses) are within a certain distance of the shelter. Schools are a good location as they can typically use the occupancy of the building plus surrounding neighbors to obtain a good amount of funding and typically the space is constructed as dual purpose (maybe a practice gym, locker rooms or something else).
 
  • Like
Reactions: Dr.bannedman
While FEMA concrete shelters for schools seem like a no-brainer, I saw a study that showed that 90% (or higher) of tornadoes happen at a time of day or time of year when kids are not in school. No one wants to jeopardize kids' safety, but sometimes, the money spent on the concrete shelters could be better spent on other safety issues and safer facilities.

Yeah seems like they're either late afternoon or evening when pressure has built up.
 
  • Like
Reactions: Kinch
funding/grants for FEMA shelters revolves around how many people (schools AND surrounding houses) are within a certain distance of the shelter. Schools are a good location as they can typically use the occupancy of the building plus surrounding neighbors to obtain a good amount of funding and typically the space is constructed as dual purpose (maybe a practice gym, locker rooms or something else).
That is true. And there are schools who have taken advantage of it. But administrators and board members during school board meetings have told me that there are tradeoffs and questions of logistics. Such as, what employee is responsible to make sure the shelter is open at 8:00 p.m. on a Sunday night? What small school can afford to have an employee on call after hours and make sure that employee is always close by? You add that cost, plus the higher labor costs to build the structure and the 25% match, that's why I said sometimes there are tradeoffs schools must consider and maybe better options to provide safety for kids.
 
Last edited:
That is true. And there are schools who have taken advantage of it. But administrators and board members during school board meetings have told me that there are tradeoffs and questions of logistics. Such as, what employee is responsible to make sure the shelter is open at 8:00 p.m. on a Sunday night? What small school can afford to have an employee on call after hours and make sure that employee is always close by? You add that cost, plus the higher labor costs to build the structure and the 25% match, that's why I said sometimes there are tradeoffs schools must consider and maybe better options to provide safety for kids.

I agree wholeheartedly and if I were a betting man, most schools that have obtained funding for it, don’t staff them outside of their normal operating hours… with that being said though getting a nice chunk of funding from FEMA for constructing a dual purpose space could be a huge difference in a small school district from having a practice gym (or take your pick on a space) or not. I know of a few districts that have them in Iowa.
 
Seems like the big reason for the intensity of this storm was the difference in wind speed between the jet stream and the ground level wind, which created ideal conditions for tornadoes, and it was fed by the warm, moist air.

You are on the right path. Wind shear (change of speed and/or direction with altitude) is critical to storms like this. Add in helicity (really dumbed down the ability for it to spin relative to storm motion https://w1.weather.gov/glossary/index.php?word=helicity) and the lifted index (the ability for a parcel of air to rise https://w1.weather.gov/glossary/index.php?word=Lifted+Index) are just a few of the key components that are needed for major super cells like these.
 
  • Like
Reactions: Kinch
Then the KCCI weatherman I watched this morning must have been wrong, although he may have been referring to Des Moines specifically. Anyway, to say 70 degrees in Iowa in December is not the norm is an understatement. I'm afraid it's just another symptom of climate change.
Yes the climate changes Pope. Just don’t need to go back to the glacial period in Iowa.
 

Help Support Us

Become a patron