Md. schools navigate a 50° temperature plunge

The record-breaking “March Madness” temperature swing around Baltimore on March 11–12 created a chaotic 48 hours for Maryland schools.

While the 83°F warmth on Tuesday and the tornado warnings on Wednesday felt like summer, a powerful cold front and “thundersnow” in some regions Thursday, reported by WBAL-TV (NBC affiliate), forced school districts to make rapid operational shifts.

Snow in Baltimore County Thursday morning (Voxitatis)

School System Response: March 11–12

Despite the dramatic drop in mercury–more than 50°F from Wednesday to Thursday–the impact on school schedules varied significantly by county, largely depending on the timing of the front and the severity of local storms.

• Baltimore City & County: Generally maintained normal operations for the school day on Wednesday, March 11. However, many after-school and evening activities were canceled or moved indoors as the cold front moved in during the late afternoon, bringing concerns of severe thunderstorms and rapid icing.
• Frederick County: As the “snow-prone” outlier in this system, Frederick County Public Schools (FCPS) saw the most significant impact. On Wednesday, March 11, students were already out for a Professional Learning Day (No School for Students). However, for Thursday, March 12, some northern and western portions of the county experienced delays due to slick spots from the overnight “wintry mix” and thundersnow.
• Howard County (HCPSS): Remained on normal operations throughout the event. While temperatures plummeted, the district reported that staff and students reported as scheduled. Outdoor activities, including lunch and recess, were moved inside on Wednesday afternoon and Thursday morning due to the wind chill and precipitation.
• Montgomery County (MCPS): While schools remained open, the county issued a Code Blue Weather Emergency for March 12–13. This designation primarily affected evening community programs and prompted a heightened alert for students waiting at bus stops in the 30-degree chill following the 80-degree high just 24 hours prior.
• Anne Arundel & Harford Counties: Both districts followed standard “inclement weather” protocols for evening events. Most evening high school classes and sports practices were canceled on Wednesday night as the “thundersnow” potential peaked and the temperature drop made wet roads susceptible to flash freezing.