Tuesday July 21 2020

While we are deep into this heat wave, the conditions today are more favorable for strong thunderstorms.  Some of these have the potential to reach severe limits, with the primary risk of damaging winds, flash flooding, and dangerous lightning. This wil be from the mountains to our west. Another storm nearly stalled around Snow Hill, MD has send clouds over the beaches this afternoon.

Here is a snapshot of the mid afternoon conditions, two short range model radar simulations, and live radar with lightning. Prime time in metro areas should be between 6 PM and 9 PM.

I want to repeat my disclaimer that the computer modeling has left us short. It is underestimated storm activity, lagged a little south and one to two hours slow. So why show them? Because it still can be a helpful guide to the general activity and coverage areas that may be affected.

Afternoon Conditions

3 PM Temperatures

July 21 maryland weather temperatures 3 PM


Wind Flow

When the winds are from the east off of the Bay, that can enhance storms between the mountains and the urban areas.

July 21 maryland weather wind 3 PM

Satellite Loop




Doppler Radar (Snapshot at 3 PM)

There is more activity than the first model in each slider below one hour later at 4 PM. This is why I expect the storms may arrive earlier and cover a larger area.

If you are at the beach and it’s been cloudy, that some by Snow Hill (southeast of Salisbury) has been the reason. It formed on the sea breeze boundary and has been nearly stalled since before 2 PM, but sent out a large plume of clouds.

July 21 maryland weather storm radar 3 PM


Radar Simulaitons

*These are just a guide. Compare to the Live Radar below to see if the showers and storms may be covering more area and arriving a little earlier than shown here.

HRRR Model —> slider

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NAM 3 Km Model —> slider

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Live Radar and Lightning Widget

Climate Report Today

Record Rainfall set in Baltimore at BWI

See the Weather Observations and Climate Report from this morning for more info about:

July 21 moon phase Tuesday

📋Observations yesterday

🌡 Climate data today

🗺 Weather Map

☀️ Sunrise and sunset times

🌙 Moon phase



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That will be tough to challenge with some of the hottest already set on those days

July 21    104ºF in 1930   
July 22    106ºF in 2011   
July 23    102ºF in 2011+



Also See:

Comet NEOWISE Viewing All July (photos/video)

Comet NEOWISE Bob Gelety

Maryland Strong Love ❤️ 

My ‘bonus’ daughter made this map of Maryland a few years ago. We brought it back for needed positivity. Now on her pick of tanks, and this cool Maryland T for men or women.

Click here or on the image to see more

This is all LOCAL: Made by Maryland Print House; Proceeds support my Maryland Trek 7 this August for Just In Power Kids.




Please share your thoughts, best weather pics/video, or just keep in touch via social media


Maryland Trek 7 

This will go on this August! Let’s hope social distancing will be a memory then. One way to celebrate would be to become part of my team:

  • Consider joining our team for the week, a single day, or even as a sponsor.

Maryland Trek 7



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


Other  Links:

Was Your County Not Included?

Click this map for more on the regional forecast zones


Baltimore Weather At BWI May Not Be As Hot As Reported

Construction at the airport close to the weather station may be added artificial heat. Click here or the image for the details.




Maryland Trek Cycle Jerseys From Hill Killer

All proceeds will go to the Maryland Trek 6 total and Just In Power Kids programs

Thank you to our Title Sponsor for Maryland Trek 6

Shining on with Smyth and their contribution, our team has raised over $100,000 for Just In Power Kids to provide free programs for kids in and post cancer treatment.

Just In Power Kids:

Proceeds go to our programs Providing FREE holistic care for kids in cancer treatment and up to 5 years post treatment and caregivers.


Shine On

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