Monday July 26 2021

In my morning forecast I gave a 20% chance for thunderstorms. When we look at Doppler Radar at 4 PM, we see two thunderstorm cells. One in the mountains, and the other across the southern Chesapeake Bay in Maryland. 

This fits with the small percentage, but of you happen to be under these cells, you might feel like the threat was underestimated.


UPDATE at 6:25 PM

This cluster of storms I described earlier… below, Actually followed a track along I-70.

Howard County is getting it now. Columbia to Hanover in the path..

This should follow the cell over near south Baltimore and Dundalk. They may get a second round within the half hour, which will then include Glen Burnie and Severna Park.












Western Maryland Cell



Southern Maryland Cell

This hit Deale and Chesapeake Beach.



Animation of that storm from 2:40 to 4 PM





Trying to anticipate where this might go, the Hagerstown cell will try to redevelop down the Potomac through Washington DC this evening. 

The Chesapeake Bay Cell will reply working to cross through Cambridge, but at this time is there seems to be a block preventing it from pushing towards Salisbury.

We may still see new cells pop up.


However, we have a guidance limitation on days like this when trying to pin point who will get wet, and when.

This Radar Simulation is from the HRRR Model. It updates hourly, and still missed the set up at 4 PM as seen in the first image.

Please compare this to the LIVE RADAR and LIGHTNING Widget below to track through the evening.


Radar Simulation



Live Radar and Lightning Widget




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