May 10 Sunday Morning Report
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Yesterday ended up nicer in the afternoon, which highlights the failure of the short-range computer model guidance. The heavier morning rain on the north side ended up stabilizing the atmosphere.
I mention this because on this important Mother’s Day, we will have sun and warmth! However, there is another chance for thunderstorms in the afternoon through tonight. This will be a different setup, and there is also reason for caution about any promise.
I am using the HRRR Model here as I determine it to be more reliable in this environment, and the takeaway is to watch after 3 PM for storms to fire up.
Monday’s rain will primarily be in Southern Maryland, while clouds will linger and clearing will develop to the west and north.
A large, cool, and unsettled pattern is expected to bring rain on Wednesday, but the light is in sight. A pattern change to sustained warm weather may very well begin next weekend.
Let’s Take A Look:
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Morning Temperatures

Morning Surface Weather

Afternoon Temperatures

Radar Simulation Comparisons: 4 PM to Midnight
HRRR Model

6 PM

8 PM

10 PM

MOUNTAIN CAM: WESTERN MARYLAND
This webcam is positioned at The Greene Turtle Deep Creek Lake and shows Wisp Resort, including a zoomed-in view of Squirrel Cage, The Face, the terrain park, Boulder, the mountain coaster, the tubing park and a shot of McHenry Cove at Deep Creek Lake!
CLIMATE DATA: Baltimore
Yesterday: Low 55°F; High 69°F
Precipitation: 0.03″
Snow Depth: 0″
Season Snow Total: 17.6″
Top Wind Gust: 15 mph
TODAY May 10
Sunrise at 5:58 AM
Sunset at 8:09 PM
Normal Low in Baltimore: 52ºF
Record Low: 33ºF in 1966/1983
Normal High in Baltimore: 74ºF
Record High: 96ºF in 1896
Rainfall Deficit at BWI
Prior 2 Years (2024 + 2025) = -16.91″
2026 YTD = -5.69″
DROUGHT REPORT UPDATE
The year-to-date deficit slipped further to -5.69”, with the cumulative shortfall since 2024 now at -22.60″.
MONDAY
Morning Temperatures

Radar Simulation 6 AM to 8 PM

Afternoon Snapshot
Clouds may linger with rain passing through Southern Maryland. The clearing will be attempting to push in from the west and north.

Afternoon Temperatures

Looking Ahead:
Monday to Thursday
The main event this week will be on Wednesday. This is NOT a blockbuster storm, but rain will be arriving from the west, with focus on the afternoon and evening for us.
Rain showers will continue on Thursday in an unsettled pattern. That means the cool air will develop more clouds and showers, but not a widespread soaker.

Wednesday

Thursday

Jet Stream Thursday

Jet Stream Thursday to Sunday
The pocket of chilly air will finally move out next weekend. This may be the formal setup for sustained spring warmth.

7-Day Forecast
Sunday: Late Day T’Storm — Mother’s Day (60%). High 83ºF, Low —
Monday: Partly Cloudy, Rain South. High 71ºF, Low 53ºF.
Tuesday: Mostly Sunny. High 69ºF, Low 47ºF.
Wednesday: Rain Moving In (80%). High 68ºF, Low 52ºF.
Thursday: Mostly Cloudy, Showers (50%). High 70ºF, Low 53ºF.
Friday: Partly Sunny. High 72ºF, Low 51ºF.
Saturday: Warming Up. High 80ºF, Low 55ºF.

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THANK YOU:
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Maryland Trek 12 Day 7 Completed Sat August 9
UPDATED: We raised OVER $170,000 for Just In Power Kids – AND Still Collecting More
The annual event: Hiking and biking 329 miles in 7 days between The Summit of Wisp to Ocean City.
Each day, we honor a kid and their family’s cancer journey.
Fundraising is for Just In Power Kids: Funding Free Holistic Programs. I never have and never will take a penny. It is all for our nonprofit to operate.
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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 can also 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
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