Tuesday, May 2, 2017
Blocking Pattern Keeps Us Cool Through the Weekend, Could Warm Us Next Week
This pattern, however, breaks down late in the weekend with a second blocking pattern developing. This jet stream block, known as an Omega Block, keeps low pressure over the East Coast and low pressure in the Southwest, while high pressure builds over the middle of the country. If the low over the East Coast isn't quite as strong as some models suggest and doesn't push too far westward, temperatures locally could warm back into the low to mid 70's. However, if the low out East is a little stronger it may push the warmth to the west keeping the continued chill over the Stateline.
Now, going back to the potential warm up into next week...
Notice how the forecast (in red) for the NAO keeps it negative through the middle of the month. If that were to hold true, it wouldn't hold much promise for our temperatures warming early next week.