As Baltimore braces for more heat, the National Weather Service (NWS) Baltimore MD/Washington DC advises residents to prepare for continued hot weather and an increasing chance of thunderstorms as the week progresses. A high-pressure system has kept temperatures soaring, but as it starts to give way, cooler air and increased precipitation are on the horizon.
The National Weather Service, in its latest update, forecasts daily chances for showers and thunderstorms developing through the end of the week. Wednesday’s triple-digit heat may give some reprieve, with the mercury likely hovering in the mid to upper 90s. Still, with humidity in the mix, Heat Advisories have been issued due to heat indices ranging from 100 to 108 degrees, suggesting a continued threat of heat-related illnesses.
For those who have to venture outdoors, the NWS recommends staying hydrated and taking frequent breaks. There is some solace as the once formidable 597-dm mid-level ridge centered over the eastern U.S. has weakened slightly, which may mitigate temperatures slightly below the scorching highs of previous days. Yet, with dew points in the low to mid-70s, even the nighttime offers minimal cooling, especially for those lacking sufficient air conditioning.
The local marine forecast also suggests mild conditions on the water, though the increasing likelihood of thunderstorms might pose challenges later in the week. Mariners should keep an eye on the weather and heed any warnings of gusty winds and lightning strikes during those times. According to the National Weather Service, a slow-moving frontal boundary will inch southward towards the Mason-Dixon Line by Thursday, increasing the chances for adverse weather.
Looking towards the weekend and into next week, a zonal flow establishes itself, indicating a pattern more typical of summer weather with chances for afternoon thunderstorms daily and temperatures consistently climbing to the upper 80s and low 90s. As far as tides and coastal flooding go, only minor issues are expected, with slight elevations at some sensitive tidal sites like Fort McHenry and Annapolis.
In terms of records, several cities could flirt with daily high temperature records for late June, but the recent cooling trend may keep the current records safe for now. The situation underscores the broader context of a climate scenario that oscillates between extreme heat events and increasingly variable weather patterns.
