Baltimore residents should prepare for a soggy stretch over the next 48 hours as a slow-moving weather system brings increasing rain and storm chances to the region. Forecasters confirm the wet pattern will begin in earnest later today and persist through Tuesday, with the heaviest downpours expected during the overnight and early morning hours.
According to the National Weather Service’s Baltimore/Washington forecast office, the metro area is under a marginal risk for isolated severe thunderstorms this evening, though widespread severe weather is not anticipated. The primary concerns remain localized flooding in low-lying and poorly drained areas, as well as the potential for gusty winds up to 40 mph with any stronger storm cells.
“We’re looking at a classic spring setup—warm, moist air colliding with a slow-moving frontal boundary,” said NWS meteorologist Mark Richards. “Although the severe threat is limited, the sheer amount of moisture in the atmosphere means we could see rainfall totals of 1 to 2 inches by Tuesday morning, with locally higher amounts possible.”
Timing and What to Expect
Rain chances ramp up significantly after 3 p.m. Today, with scattered showers and thunderstorms becoming likely by the evening commute. The National Weather Service has issued a hazardous weather outlook for Baltimore City and surrounding counties, noting that the most persistent rain will occur overnight into Tuesday. A brief lull in activity is possible Tuesday afternoon before another round of showers moves in ahead of a secondary cold front.
Here’s a breakdown of the expected conditions:
- Today (Monday): Increasing clouds with scattered showers developing by mid-afternoon. High near 72°F. Chance of rain: 60%.
- Tonight: Widespread showers and thunderstorms, some heavy. Low around 60°F. Rainfall totals of 0.5 to 1 inch likely.
- Tuesday: Showers lingering through the morning, tapering to isolated drizzle by afternoon. High near 68°F. Additional rainfall of 0.25 to 0.75 inches.
- Wednesday: Clearing skies with cooler temperatures in the low 60s.
Flooding and Travel Impacts
With saturated ground from recent rainfall, the National Weather Service warns that even moderate downpours could lead to localized flooding, particularly in urban areas where drainage systems may be overwhelmed. The Maryland Department of Emergency Management has advised residents to avoid driving through flooded roadways, noting that just 6 inches of moving water can sweep away most vehicles.
Motorists should also be prepared for reduced visibility and slick road conditions during the heaviest rain bands. The Maryland State Highway Administration has pre-positioned salt trucks and drainage crews in flood-prone areas, including sections of I-95, I-83, and the Baltimore-Washington Parkway.
Air travel could also see delays, particularly at Baltimore/Washington International Thurgood Marshall Airport, where thunderstorms may disrupt flight schedules. Travelers are encouraged to check with airlines for real-time updates.
How to Prepare
With the wet weather expected to linger, officials recommend taking the following precautions:
- Secure outdoor items: Bring in or tie down patio furniture, trash cans, and other loose objects that could become projectiles in gusty winds.
- Check drainage: Clear gutters and storm drains around your property to prevent water buildup.
- Monitor alerts: Sign up for emergency notifications through the Maryland Emergency Alert System or local weather apps.
- Have an emergency kit: Include flashlights, batteries, non-perishable food, and water in case of power outages.
For those with outdoor plans, the rain may put a damper on activities, but the silver lining is that the system will assist alleviate the recent dry spell. The Baltimore area has seen below-average rainfall for April, with only 1.8 inches recorded at BWI Airport as of Sunday—nearly an inch below normal for the month.
Looking Ahead
While the worst of the rain will exit the region by Wednesday, the unsettled pattern may not be entirely behind us. Long-range forecasts suggest another chance of showers returning by the weekend, though details remain uncertain. For now, residents are urged to stay weather-aware and plan accordingly for the next 48 hours.
“This isn’t a one-and-done event,” Richards said. “We’ll see multiple waves of moisture moving through, so even if it’s dry for a few hours, don’t let your guard down.”
As the system moves out, cooler and drier air will filter in, bringing more seasonal temperatures by midweek. Until then, retain the umbrella handy and stay tuned to local forecasts for updates.
What’s your plan for dealing with the rain? Share your tips in the comments below, and don’t forget to share this update with friends and family in the Baltimore area.
