wxmx Posted January 5, 2011 Share Posted January 5, 2011 We have had an incredible string of above average heights in the high latitudes, and in the short term we'll very probably see an extreme episode of this, once more. But so far the mid/upper stratosphere has been cool and, with no sign of a warming event that could propagate top-down...that is, getting a temp spike in the upper stratosphere that propagates towards the troposphere... until now. Spike in the 1-10 hPa level (upper stratosphere) 6 day forecast (look at the near -35C to -60C near the pole at 1-10hPa) 10 day forecast (goes to >0C to -40C in the same level)... a warming of an average of 20-35C! But it wouldn't be considered a MMW. No reversal of the winds at 60N-10hPa...yet Something else to watch out Link to comment Share on other sites More sharing options...
wxmeddler Posted January 5, 2011 Share Posted January 5, 2011 I didn't know a 40°C jump at that height and latitude was even possible.. That's insane.. Link to comment Share on other sites More sharing options...
Amped Posted January 5, 2011 Share Posted January 5, 2011 GFS splits 100MB by 240 hrs. 10MB is still stable despite thefact the warming is picking away. Link to comment Share on other sites More sharing options...
Amped Posted January 5, 2011 Share Posted January 5, 2011 I didn't know a 40°C jump at that height and latitude was even possible.. That's insane.. It's all at one point, 90N it's just the warm pocket blowing into the pole.(see my above post) The atmposphere is very thin at 10HPA it doesn't take that much energy to warm it 40C, just needs to absorb a little more sunlight. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.