Flood Watch Update: Rain Timeline Today And Heavier Storms This Weekend

Flood Watch Update: Rain Timeline Today And Heavier Storms This Weekend

Thursday May 31 2018

We have a Flash Flood Watch in place this afternoon and this evening, and I will show the latest radar simulation update below. Many afternoon sports will be impacted if not at the start, then during the event. But I want to point out that there is more rain on the way this weekend and it may be even worse Saturday afternoon into Sunday morning. This is a potentially dangerous situation standing on its own. But add in our saturated ground and swelling waterways, plus the cleanup of recent floods and there is a lot more anxiety that is justified.

Here is the breakdown:

Today: Radar Simulation —> slider

Metro Baltimore will see the bulk between 5 PM and 9 PM

Rainfall Potential

Some areas may get between 1 and 2 inches of rain today. We can only hope that storms that form continue to move rather than crawl or stall in place. Slower moving cells would drop more rain and lead to more flooding

 

Flash Flood Watch

 

Wider View And Looking Ahead

This afternoon’s water vapor satellite

Alberto remained a depression through Michigan and is not in Canada. This is as far north as an organized system will get.  It helped to drag tropical moisture north that we see in the form of fog, clouds, and will feed into the strong storms today.  The next system in Missouri is heading east and will act on this moisture to make for more heavy rain this weekend. A new Low is expected to form right over Delmarva Saturday.  See more below.

 

Satellite Animation

 

Forecast Through The Weekend

Precipitable Water shows the potential for rainfall in the clouds. A symbol of the moisture available… Note that we will have more storms develop on Friday afternoon and evening. But the strongest storms and heaviest rain will be Saturday into Sunday morning.

—> slider

Resulting Low Pressure forming in Saturday

The Low Pressure over southern Delmarva would be in a position to pump in maximum rainfall into central Maryland.

 

Rainfall Potential Through The Weekend

This is just a ‘potential’ and as we saw last week… individual cells could dump more rain depending on location of track and speed. Some cells may sit in place (like last weekend) and would over perform rainfall in those locations. We won’t know those until the day they will form.

 

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Ellicott City Flood Reports:

Raw video, radar, and rain totals

Video of damage from the air, history, and area development concerns

 

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May 31st, 2018|Tags: , , , , |