July 1 2017

We start the day warm and muggy with plenty of cloud cover, but it will be this afternoon that we have the risk for severe storms. A strong cold front will have plenty of energy to work with and arrive during the peak heart of the day as we aim for the 90s again. The main threat from these storms will be damaging winds reaching 60 mph along with heavy downpours and frequent lightning. Some storms may contain large 1 inch hail or even an isolated tornado.

The moment of these storms should make for a duration of 30 to 60 minutes. The time frame will reach central Maryland between 2 and 5 PM. Around the Bay and Delmarva a little later between 4 and 8 PM to pay attention. But a closer look shows the main threat for the worst weather will be west and north of the Bay Bridge.

Radar Simulations:

As I have shown all spring, these products have not been perfect, but do a better job with larger events. Here is the comparison of the HRRR Model and NAM 3 Km. The agreement is the time frame for central Maryland and southern PA between 2 and 6 PM and the storms fading on the Eastern Shore.

HRRR Model —> slider

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NAM 3 Km —> slider

[metaslider id=49376]


High Temperatures



Get the award winning Kid Weather App I made with my oldest son and support our love for science, weather, and technology. Our 3 year anniversary of the release and our contribution to STEM education is this November. It has been downloaded in 60 countries, and works in both temperature scales. With your support we can expand on the fun introduction to science and real weather.

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Plus enter to win free sunglasses

Maryland Trek 2017

Be part of my 4th annual hike and bike across Maryland this August. See my trek page and sign up for information to do one day, the whole week, or even sponsor this great event.

Milestones this year:

  • I will do my 1000th mile
  • We aim to reach $100,000 for Cool Kids Campaign

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

Faith in the Flakes

The store is closing for the season. Next week we wil be shifting back to spring mode. This will include a severe weather STEM assembly program.