The stagnant pattern bears results

Lately, we have had a fairly constant pattern, with a west to east jet drifting across the northern part of country, with the occasional undulation rippling along it, generating weak areas of low pressure that have trekked east. For the most part, they have kicked up some streaks of showers and thunderstorms along weak cold fronts, and most of all have produced steady rainfall for the northern tier of states.
The map above is the comparison to average rainfall for the month to date. As you can see, most all regions for the northern states are at or above average for rain so far. South of the line, they haven’t seen their standard rain, because there hasn’t been the systems with enough energy to sweep boundaries that far south. Nebraska has been especially wet with large thunderstorms as the surface lows have tried to organize right on top of them. This map is a pretty good indicator of the unchanging pattern.
Additionally, check out that nice dark blue streak through east Texas into Arkansas. That is the infamous blob that brought about a foot of rain to some spots. Too bad that rain couldn’t be distributed to other parts of the country.