I know this system isn’t super interesting. But it’s all we got. Full cave by WPC to the Euro
View attachment 174598
Excessive Rainfall Discussion
NWS Weather Prediction Center College Park MD
852 PM EDT Wed Aug 27 2025
Day 3
Valid 12Z Fri Aug 29 2025 - 12Z Sat Aug 30 2025
...THERE IS A MARGINAL RISK OF EXCESSIVE RAINFALL OVER A LARGE
PORTION OF THE GREAT PLAINS, THE FRONT RANGE OF THE ROCKIES, AND
ACROSS MUCH OF THE DEEP SOUTH...
20Z Update: The D3 time frame can be described as "chaotic" within
the grand scheme of the CONUS pattern and the 12z numerical suite
offered no help in discerning potential maxima placement across the
South and Central/Southern High Plains. Individual deterministic
detailed more of the variability of the pattern with maxima for the
Southeastern U.S. situated anywhere from SC to TX with the ensemble
means relatively muted thanks to the spread. High Plains from the
CO Front Range down to the TX Panhandle was a little better
defined, but still lacked consistency in the expected magnitude of
rainfall in the vicinity. Overall, the threats exist in a vacuum,
but nailing down the exact placement of the maxima is closer to
"throwing darts at a dart board" as much of the setup in the
Southern U.S. is contingent on the convective evolution the period
prior. For now, maintained the continuity in the broad MRGL
situated over the Southeast extending back up into the Northern
Rockies. As we move forward in time, an upgrade or two is certainly
plausible, most notably over the High Plains and/or Southeast
CONUS.