SYRACUSE, N.Y. (WSYR-TV) The leaves were popping out like gang-busters earlier in the Spring across the southern U.S.
That progress has slowed in recent weeks with abnormally cool weather in the northern US. Including here in Central New York.
This map shows how much earlier (red) or later (blue) leaf out when compared to normal.
In our area, we’re starting to shade toward the blue, which means the leaf out is running a bit behind normal.
The culprit appears to be blocking of the jet stream in the high latitudes of the Northern Hemisphere, which is pushing the jet stream southward over the northern US. This is preventing building warmth in the southern US from consistently setting up over central New York..