90s Looking Less Likely
By Steve MacLaughlin on June 7, 2012, 8:30pm
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Now that our cool, wet weather pattern is breaking, we can turn our attention to much warmer and nicer conditions this weekend.
The image above is the GFS weather model at 18z (2pm) on Monday. It shows the 500mb heights which is where we can see the large-scale weather patterns across the entire United States.
The most important feature is the ridge in the east. You can find the ridge of high pressure by following the parallel black, solid lines moving from west to east with big ups and downs. The lines will mirror the jetsream which flows from Canada down into the Plains south of the Dakotas, then back up north of the Great Lakes up and over Connecticut.
This pattern, normally, would lead to hot temperatures as that jetstream pushes all the cold air into Canada and allows the warm air to come up from the south.
But...the next frame will show you why it is less likely that we will see the big-time heat.