Severe thunderstorms knocked out power to thousands in Nashville on Sunday evening.
Category: climatology – Page 149
That Unusually Large Ozone Hole Over The Arctic Has Closed Up Again
Earlier this year, the layer of ozone over the Arctic thinned out enough to be considered a serious sized hole. It wasn’t exactly impressive compared with its southern cousin, but it was certainly a lot bigger than we’d ever seen it before.
Now, according to surveillance by the Copernicus Atmosphere Monitoring Service (CAMS), we can breathe a sigh of relief. It’s healed up again.
That’s great news for ecosystems below, which rely on concentrations of ozone gas high up in the stratosphere to act as a planetary-scale sunscreen against damaging showers of UV radiation.
Over 20 tornadoes hammered the South on Wednesday, more expected Thursday
:oooo.
SOUTHERN UNITED STATES — Over 20 tornadoes touched down in the southern United States Wednesday, April 22 and more are expected Thursday, April 23. At one point, there were four distinct supercells on radar producing a tornado in Oklahoma.
Many of these storms lasted for hours and the threat for severe weather on Thursday, April 23 is aimed at the southeast.
More than 45 volcanoes are erupting right now
Volcano activity update.
Although detailed statistics are not kept on daily activity, generally there are around 20 volcanoes actively erupting at any particular time.
Overall there are 45 volcanoes with ongoing eruptions as of the Stop Dates indicated, and as reported through the last data update (17 April 2020) and shown in the diagram below.
Just a reminder that yesterday was the 30th anniversary of the Redoubt volcanic eruption on April 21, 1990. Here a picture:
Italy: Stromboli erupts for second time in one month
👽Stromboli has just erupted again for the second time this month. There has been 8000 earthquakes since January 2020 in Iceland, coinciding with a volcano network that has not been awake for 800 years.
There has been 250 small Earthquakes in Idaho, and the most recent relatively strong quake worldwide was registered in Honduras, over 6,3 magnitude, yesterday.
Fyodor, R.
A new lava flow started to descend on the side of Mount Stromboli on the eponymously named Italian island on Wednesday, amid an ongoing volcanic eruption.
Mount Stromboli recently erupted on April 1, as well as twice in two months between July and August 2019.
How a team of scientists studying drought helped build the world’s leading famine prediction model
This is possibly part of the reasons there flocks of giant locusts ravaging Africa. Rainy periods of time like the March Rain may serve to catalyse their reproduction and they appear right when its time to harvest crops June and July, when farmers are just starting to harvest.
(Kenya, Somalia, and southern Ethiopia have the right conditions with the possibility of migrations to Uganda and South Sudan.)
Every few years, natural swings in the ocean can lead to such a warming, drastically altering weather on land—and setting the stage for flooding rains in East Africa. But at the same time, a second ocean shift was brewing. An unusually cold pool of water threatened to park itself south of Madagascar, leading to equally extreme, but opposite, weather farther south on the continent: drought.
Researchers have harnessed climate patterns to forecast famines months in advance.