Please share this with your friends and family in any of the areas that show DARK BLUE so they can be prepared for potential strong storm systems beginning on Friday, April 20th through the 24th.
Each day the Jet Stream and Tropopause Reports update, so keep a close eye to see if today's predictions change.
Here are links to these two reports. I have found them to be quite reliable, although the situation can change.
Animated Jet Stream
http://www.weatherimages.org/data/imag192.html
University of Utah Tropopause Prediction (double check to make sure the date is the Current date, if now, click on CURRENT, GFS004, North America)
http://weather.utah.edu/index.php?runcode=2012041712&t=gfs004&r=NA&am...