June 30 Severe Storm Risk Today Then Breezy And Cooler Tomorrow
Sunday June 30
Morning Report
Storms on Saturday erupted with locally heavy rain and some damage from wind and lightning strikes. Rainfall ranged from nearly 3 inches in Frederick County to barely 0.10” around Baltimore at BWI.
Here is the Doppler Radar Estimate of rainfall from Saturday and overnight. This highlights how some storms can repeat and dump over some areas and miss others. This activity will shift south and east today.
Today we have this slow moving cold front over the region and it will ignite powerful storms again. Given the history from the past few days and energy involved with high heat and humidity, we can expect severe weather that can turn destructive.. again.
Tomorrow, we will get a strong wind from the North to cool us down and drop the humidity to start the week and month of July. More heat and strong storms are expected to return for the Independence Day celebrations.
NOAA Severe Storm Risk
The focus will shift into central Maryland to The Beaches. This will be enhanced by high temperatures and humidity. The timing will be mid-afternoon to evening AFTER 4 PM.
Storms may include:
- Flash Flooding
- Winds gusts over 58 mph
- Large Hail over 1” Diameter
- A Few Tornadoes
Note: Any storm may contain dangerous lightning.
Alert Reminder
- A ‘WATCH’ may be issued if the ingredients become evident for a good chance of severe storms developing within six hours.
- A ‘WARNING’ will be issued only if a storm of this caliber is identified. The ‘warning’ will include tracking in a county and specific towns for the following 45 minutes.
Live Radar and Lightning Widget
Compare to the forecast maps below.
Morning Surface Weather
A strong cold front is moving through the region, but it will take all day. Where it is set up will determine the line of showers and storms. It will ignite more storms that may produce severe alerts and locally heavy rain.
Radar Forecast Suggestion at 8 AM
Radar Simulation: NAM 3 Km 8 AM to Midnight
This is a suggestion and not a promise. Note: We have had more activity recently than shown here.
This brings in a strong line of storms tonight from North Central Maryland to Southern PA… but they fade after 9 PM.
Snapshot (Suggestions)
Afternoon at 4 PM
Evening at 7 PM
8 PM
9 PM
10 PM
Afternoon Temperatures
It may feel close to 100ºF in central and southern Maryland plus Delaware.
CLIMATE DATA: Baltimore
TODAY June 30
Sunrise at 5:44 AM
Sunset at 8:37 PM
Normal Low in Baltimore: 66ºF
Record 52ºF in 1988
Normal High in Baltimore: 88ºF
Record 100ºF 1945; 1959
Monday
A new air mass will bring in a strong breeze and lower humidity. In the afternoon, this may also produce a mix of clouds and sun.
Wind Forecast 6 AM to Midnight
Wind Forecast Snapshot at Noon
Gusts FROM THE NORTH 20 to 30 mph!
This will bring in cooler and less humid air.
Morning Temperatures
Afternoon Temperatures
Looking Ahead:
Wednesday Evening to Friday Evening
The next surge of heat, humidity, and storms will line up with Independence Day!
July 4th Evening
There is a chance for strong to severe evening storms. This is five days away, so it’s worth keeping in mind with a buffer. It might change, but you might want to allow for a change of plans.
7 Day Forecast
After the stormy end to the weekend, the work week will start breezy, cooler, and less humid. The heat, humidity, and storms will climb back up for Independence Day!
If You Missed It: Click To See
5 Tornadoes Confirmed In Maryland (so far) on June 5
June 5 Storm Report (Preliminary) With Videos And Photos
Hurricane Season Outlook
Click to read: NOAA Releases Most Aggressive Outlook
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RESTATING MY MESSAGE ABOUT DYSLEXIA
I am aware there are some spelling and grammar typos and occasional other glitches. I take responsibility for my mistakes and even the computer glitches I may miss. I have made a few public statements over the years, but if you are new here, you may have missed it: I have dyslexia and found out during my second year at Cornell University. It didn’t stop me from getting my meteorology degree and being the first to get the AMS CBM in the Baltimore/Washington region.
One of my professors told me that I had made it that far without knowing and to not let it be a crutch going forward. That was Mark Wysocki, and he was absolutely correct! I do miss my mistakes in my own proofreading. The autocorrect spell check on my computer sometimes does an injustice to make it worse. I also can make mistakes in forecasting. No one is perfect at predicting the future. All of the maps and information are accurate. The ‘wordy’ stuff can get sticky.
There has been no editor who can check my work while writing and to have it ready to send out in a newsworthy timeline. Barbara Werner is a member of the web team that helps me maintain this site. She has taken it upon herself to edit typos when she is available. That could be AFTER you read this. I accept this and perhaps proves what you read is really from me… It’s part of my charm. #FITF