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Discussion:
A subtle change is on the way!
There is still some smoke from the Pacific northwest making the sky a little milky as the airflow is out of the northwest and then southward across the state (Figure 1) . Figure 2 shows the expected future track for the remains of Harvey. It isn't headed out quickly, but it is beginning to pull away from Houston Tuesday PM. Figure 3 shows the upper air pattern with our high center now anchored over the Great Basin but the red line shows the change. That trough will shift the ridge westward away from us, allow a cool front to knock temperatures into the 80's in Longmont Thursday, and help to move Harvey on its way.
In a look at the longer range:
By Friday morning (Figure 4) Harvey has pulled into the lower Mississippi Valley and the cool front has swept down the Front Range. The high center is off the Oregon coast, temporarily. That relief is temporary too. The high is back (Figure 5) and strong by Sunday morning. We might see an all time record high temperature on Sunday. But another cool front may knock us back to the 80's on Monday/Tuesday.
