First Alert: Record Warmth Collides with Severe Storm Risk This Evening

A Volatile Spring Day Ahead for Baltimore

Baltimore residents should prepare for a day of dramatic weather shifts as the WJZ First Alert Weather Team has officially designated Wednesday, March 11, 2026, as a First Alert Weather Day. Following yesterday’s record-shattering high of 85 degrees—which topped a decade-old record—today promises a continuation of unseasonable warmth mixed with the threat of high-impact severe weather. While the morning may feel like a gentle spring start, the atmosphere is priming itself for a turbulent afternoon and evening.

Morning: Fog and Mild Conditions

The day begins on a murky note. For those heading out on the early commute, dense areas of fog are expected to blanket much of the Baltimore metro area, particularly near the Inner Harbor, until roughly 10:00 a.m. Visibility may be significantly reduced on major routes like I-95 and I-695. Temperatures are starting in the unseasonably warm 50s and low 60s. A few light, passing showers are possible during the mid-morning hours, though these will be scattered and should not pose a significant threat to travel before noon.

Afternoon and Evening: Severe Storm Window

As we move into the afternoon, temperatures are expected to soar once again, likely reaching a high of 76 degrees, which could challenge existing daily records. However, this heat serves as fuel for an approaching cold front. Meteorologists are tracking a line of severe thunderstorms expected to develop and push through Maryland. The primary window for concern is between 3:00 p.m. and 9:00 p.m., with the most intense activity likely concentrated along the I-95 corridor.

Residents should stay weather-aware throughout the evening, as any storms that develop carry the potential for the following hazards:

• Damaging Winds: Wind gusts up to 70 mph are possible, capable of bringing down trees and power lines.
• Hail: Large hail is a notable risk with the strongest cells.
• Isolated Tornadoes: While the risk is higher in western Maryland, a low-level threat for an isolated tornado exists within the Baltimore metro area.

Overnight: The Big Chill

Once the storm line passes, the transition to much colder air will be rapid and jarring. Behind the strong cold front, temperatures are forecast to plummet by 25 to 30 degrees by sunrise on Thursday morning. The breezy south winds of 10 to 15 mph will shift significantly, bringing in a raw, winter-like chill. By tomorrow morning, the record warmth of the last 48 hours will be a distant memory as the city braces for a much colder end to the work week.