Extreme Heat In MD: Record High Temps Expected, Advisory Issued

MARYLAND — A heat advisory is in effect from noon to 8 p.m. on Tuesday across Maryland, as heat index values of 100 to 105 are expected, according to the National Weather Service.

Record high temperatures are likely to be broken Tuesday and Wednesday in the Baltimore area. The record high on Sept. 5 is 96 set in 1954. The record high for Sept. 6 is 98 set in 1983.

Monday's high temperature hit 99 degrees, breaking the 96-degree record set in 1937.

Labor Day saw record-breaking temperatures set at all three of the region's airports. Reagan National Airport reached 98 degrees, while both Baltimore-Washington Airport and Dulles International Airport recorded highs of 99 degrees, WTOP reported.

Temperatures could reach 100 degrees on Wednesday. The Baltimore area has not hit 100 degrees since July 20, 2020.

On Tuesday and Wednesday, experts recommend the public drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances.

Areas under the heat advisory include Anne Arundel, Carroll, Cecil, Howard, Montgomery, Charles, Frederick, Baltimore, Harford, Howard, Prince George's counties and Baltimore City, according to the NWS.

To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air-conditioned environments.

Due to the extreme heat, all outdoor Baltimore County Public Schools athletic games and practices have been canceled on Tuesday.

The Baltimore City Health Department issued a code red extreme heat alert through Thursday. "It is important that residents understand the dangers of extreme temperatures," Acting Baltimore Health Commissioner Mary Beth Haller said in a statement. "Extreme heat is dangerous to young children, older adults and those with chronic medical conditions. Please protect yourselves and check in on your family, neighbors and pets."

The weather pattern will keep temperatures very hot through Thursday, when afternoon storms are expected, the NWS said.

"Scattered to numerous showers and thunderstorms are possible, mainly during the afternoon and evening hours Thursday through Saturday," the NWS said. "Some of these storms may turn severe. The main threat is damaging wind gusts."

Here is a look at the National Weather Service forecast for the work week in central Maryland:

Tuesday: Mostly sunny and hot, with a high near 98.

Tuesday night: Mostly clear, with a low around 73.

Wednesday: Sunny and hot, with a high near 100. Heat index values as high as 103.

Wednesday night: Partly cloudy, with a low around 74.

Thursday: A chance of showers and thunderstorms after 2 p.m. Mostly sunny, with a high near 94.

Thursday night: A chance of showers and thunderstorms, mainly before 2 a.m. Mostly cloudy, with a low around 71.

Friday: A chance of showers and thunderstorms after 2 p.m. Partly sunny, with a high near 89.

Friday night: A chance of showers and thunderstorms before 2 a.m. Mostly cloudy, with a low around 69.

Saturday: A chance of showers and thunderstorms after 2 p.m. Mostly cloudy, with a high near 84.