NZ Thunderstorm Soc wrote: Mon 13/12/2021 18:31
The majority of the population would be at home or asleep or whatever. Not expecting anything like this due to the time of year, autumn or fall going into winter. Definitely a sign of climate change.
The Storm Prediction Center had a moderate risk. There would have been plenty of talk on local TV/radio on the day.
Dec 11
A Moderate (4/5) Risk is now in place for portions of the Mid South this evening and overnight. A few tornadoes (some strong), damaging wind gusts, and large hail are possible mainly overnight.
There was live coverage of the event as it unfolded on TV and internet. Weather radio can wake people up if they have it turned on.
Drone shots of cycloidal ground scouring marks over field (ground swirls from violent longtrack tornado) and damage in/near Hayti, MO, including interview with storm chaser Michael Gordon.
The SPC had highlighted this as an event to watch 5 days prior. The lead time of the tornado warnings was some of the best I’ve ever seen. The storms were moving at 50-60mph. The SPC actually issued a mesoscale discussion for the main supercell 2 hours before it hit Kentucky. There is really no excuse for not having a NOAA weather radio. They’re cheap and sold at walmart.
Another tornado outbreak underway in the USA right now. Across Nebraska, Iowa and later on Minnesota. Just saw a warning with a confirmed tornado moving at 100mph!!! There’s some good news coverage live on Facebook for anyone who wants to follow.
Interesting that the town name of Mayfield now has tornado connections. Mayfield here in Canterbury had a bit of a tornado as filmed by Aaron and Steve B. a few years back.
After record breaking heat in June and record breaking flooding in November, the far NW of America (Washington State) and British Columbia are now getting record cold as an 'arctic incursion' has brought very low temperatures and windchill. This is where the air from the interior of Canada spreads across the coastal mountain chain to the coast on a N-NE wind - there is a big high pressure over the NW of Canada/Alaska.
On Boxing Day, the maximum temperature at Vancouver Intl Airport was -5.7°C with a 10-20mph NE breeze. Just inland from Vancouver at Abbotsford, the maximum was -9.6°C with a peak wind gust here of 42mph.
