Big heat is gone for now and we quickly turn our attention to an unusual summer setup. Weak high to the north, a weak low to the south, and an all-important warm front which will wring out PWATs of 1.5-2.0" between late tonight and Tuesday. Flood watches are up for CT, which may be expanded depending on where the axis of heaviest rain sets up.
Ensemble guidance has a heavy rain signal
Some high resolution guidance goes wild.
The main takeaway is that while there may be a sizable area of meaningful rain (my forecast is 2-4 generally for CT) there is high end localized flash flooding potential where the warm front sets up. Most models have been fairly consistent in focusing the heaviest general and localized rain in SNE.
For most, the mitigating factors here are 1) Outside of the axis of heaviest rain this is likely to be a spread out rainfall over many hours rather than short burst deluge and 2) antecedent conditions have been relatively dry, though many in CT have seen rain in recent days.
Let's discuss. Let's flood.