This week we are learning about severe weather. Severe weather conditions can be caused by difference in air movement, air pressure ad temperature in the atmosphere. In my country Portugal, there is a website that shows the regions at risk for severe weather conditions and weather alerts are sent out only if meteorologists are certain about the occurrences of the severe weather event. The general map contains a summary of all the severe weather hazards respectively severe weather warnings as well as useful weather advices for Portugal. On the map you can see at which locations respectively in which areas of Portugal severe weather events as gale/storm, heavy rain, heavy snow, thunderstorm or freezing rain are imminent. Furthermore, the overview indicates where in Portugal extreme temperatures or icy roads/glazed frost have to be reckoned with. They distinguish between weather watches and weather warnings. Severe weather watches are issued up to 48 hours in advance, if the occurrence of a severe weather event is probable but there are uncertainties about duration, intensity and/or the course of this severe weather event.
Thunderstorms are quite a common weather occurrence in Portugal, along with lightening.
There are 3 basic atmospheric conditions that are required to produce a thunderstorm:
1) Warm humid air must be available in the lower atmosphere to feed clouds and precipitation and provide energy to the storm as it develops.
2) A steep vertical temperature gradient must exist in the environment such that the rising air is warmer than the air through which it is moving. This gradient places colder air over warmer, moist air.
3) An updraft must force moist air up to colder levels the atmosphere.
You can see thunderstorm in Portugal in the link below:
https://www.youtube.com/watch?v=2rpPGmLFw-I
http://avisos.centrometeo.pt/index-en.html
http://portugalresident.com/portugal-on-alert-over-thunderstorms-and-rain
Thunderstorms are quite a common weather occurrence in Portugal, along with lightening.
There are 3 basic atmospheric conditions that are required to produce a thunderstorm:
1) Warm humid air must be available in the lower atmosphere to feed clouds and precipitation and provide energy to the storm as it develops.
2) A steep vertical temperature gradient must exist in the environment such that the rising air is warmer than the air through which it is moving. This gradient places colder air over warmer, moist air.
3) An updraft must force moist air up to colder levels the atmosphere.
You can see thunderstorm in Portugal in the link below:
https://www.youtube.com/watch?v=2rpPGmLFw-I
http://avisos.centrometeo.pt/index-en.html
http://portugalresident.com/portugal-on-alert-over-thunderstorms-and-rain
Good Evening!
ReplyDeleteGreat post, I love your use of definitions and videos to further my understanding as a fellow student! Some similarities we share between our countries (Portugal and The Philippines) are thunderstorms. I found quite a number of thunderstorms as well as you did in your country and I was interested to see their preservation efforts after the fact!
Alyssa