Thursday April 29 2020

A slow moving storm is heading our way and it is strong. Today winds will increase with gusts to 30 mph, but temps should get close to 70 for most of the region.  Tomorrow, a line of heavy rain will crawl across the region bringing between 1 to 3 inches of rain. Flooding is possible from the heavy rain on soggy soil AND from winds sloshing the water up the Chesapeake Bay.

The good news: This weekend should be warmer.

Weather Alerts:

Excessive Rainfall

Chance for rain to produce Flash Flooding. This is for too much rain in a short period of time.


Flood Watch

This is more widespread from heavy rain between 1 to 3 inches.


Coastal Flood Watch/Advisory

This is for winds from the southeast pushing water up the Chesapeake Bay.  It will slosh to the western shore. This wind will inhibit low tides from moving out, then making the next high tide even higher.


Weather Set Up

Water Vapor Satellite Loop: The storm is very slow moving with a very deep trough


This Afternoon

Strong Winds gust up to 30 mph. This will be from the east to southeast. It will be responsible for the flood risk on the Bay, and also pumping in warmer air and moisture.


High Temperatures 


Weather Collection Lab:


Rain Timeline —> slider

  • This will be slow moving!  Central areas get hit mid day through mid afternoon. Eastern areas get it later in the day.
  • Temperatures should remain within a few degrees of 60ºF all day.


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The core of the trough will be overhead, keeping bands of rain around.
Total Rainfall
The NAM Model tends to be the heaviest, so I wanted to compare it to the European ECWMF.
NAM 3 Km Forecast
European ECWMF Rain Forecast

Looking Ahead
Temperature Outlook 


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Water Spout OR Scud Cloud on videos and photos near Middle River Maryland

Other  Links:

When is the typical last freeze or frost?

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Baltimore Weather At BWI May Not Be As Hot As Reported

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