The National Weather Service Baltimore MD/Washington DC has issued a set of advisories as high pressure takes the helm today, progressing offshore Monday while holding steady through mid-week; a cold front is expected to slide through come Friday. So often shrouded in its coastal fog, San Francisco might find kinship in the forecasted high clouds—set to obscure Baltimore at daybreak—but unlike the Bay's persistent marine layer, these clouds should drift off by afternoon.
Today's winds out of the north are tame. Temperatures look to graze the upper fifties, even edging into the sixties, with the evening welcoming what could be the last freeze of the season for some zones blessed. At dawn, temperatures are anticipated to nosedive into the frostier realms of the upper twenties and lower thirties, with slight mercy granted upon urban ridges and city cores. "Clear skies and calm winds will create ideal conditions for radiational cooling," noted the National Weather Service Baltimore MD/Washington DC forecast, the urban warmth little solace to gardeners lamenting the season's end.
A gradual warming trend is on the books as winds orient southerly—the thermometers bouncing back with daytimes scaling the low to mid-sixties, nights retreating no further than the forties. Tuesday's promise is golden still, as temperatures could crest into the seventies, a prelude to the cold front's later advent. "VFR conditions are expected at the terminals through Tuesday, with light winds and a few passing high clouds," the National Weather Service Baltimore predicts for air travelers wending through spaces more reliably transited than the ephemeral clouds above.
Maritime interests aren't left adrift, though Small Craft Advisory flags punctuate the otherwise tranquil seascape for parts of the morning, giving way to gentler easterlies that will curve southeast come Monday, forecasters envisioning a horizon with no remarkable hazards beyond perhaps a livening of Thursday's winds ahead of that front above. Baltimore's mariners, thus cautioned, adjust their sails to the rhythm of nautical prognostications, a dance as old as trade winds and starlit navigation.
