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re: Sally - Moving towards Georgia - Potential for Significant Flooding
Posted on 9/11/20 at 2:31 pm to Duke
Posted on 9/11/20 at 2:31 pm to Duke
quote:
it does get stuck in no man's land by Tuesday.
It looks like from the models that it moves only ~250-275 miles in 48 hours from Monday to Wednesday. The old rule of thumb of 100 / speed for rainfall in inches would be between 15 and 20 in that case. Not good for wherever is under the max amount of rainfall.
Posted on 9/11/20 at 2:41 pm to NorthEndZone
quote:
It looks like from the models that it moves only ~250-275 miles in 48 hours from Monday to Wednesday. The old rule of thumb of 100 / speed for rainfall in inches would be between 15 and 20 in that case. Not good for wherever is under the max amount of rainfall.
![](https://tropicaltidbits.com/analysis/models/gfs/2020091112/gfs_uv250_us_17.png)
It's going to have an upper high sitting just east of it too. Would set up for outflow to be enhanced and upper divergence with a plume of tropical moisture pumping in at the surface is a recipe for efficient rainmaking. Column appears to be pretty saturated too on the east side.
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