The only hope to break the pattern that brings extremely hot anticyclones through the Triangle seems to be the coming of Autumn. Raging heat enveloped the area once again today. Here are some extremes recorded during the past 24 hours:
- Raleigh (RDU) – 104 on Friday.
- Greensboro – Record minimum temperature. 77 this morning.
- Fayetteville – High Temperature of 105 recorded today,
Our source of suffering has been a persistent strong jet stream which has brought a cool non-summer to the west. In a typical La Nina fashion the path of the jet collapsed west of the Rockies then raced NE into through the northern tier of states, In summer, those east of the system face a monolithic anticyclone whose clockwise rotation is being spun by the jet. Not only do those underneath the anticyclone face the normal heat from the sun and dry air, but there is added heat produced by compression.
Sadly, tropical storm paths in the West Pacific have been generally west being steered by a strong anticyclone. The relationship correlates to continued ridging here in the Eastern US for a minimum of the next 10-15 days. Therefore computer model projections of another onslaught of heat beginning Tuesday are well founded.
Copyright 2011 by Dean Grubbs All rights reserved. This publication may not be reproduced or redistributed in whole or in part without the expressed written consent of the author. The one exception is a limited to 1 paragraph introduction which ends in a link to whole article.