DC weather: Scattered showers and thunderstorms Tuesday
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Scattered showers and thunderstorms are expected Tuesday, with early patchy fog. Skies stay mostly cloudy through the day, and highs reach near 85 degrees.

Flood Watch issued for much of DC region ahead of expected Monday thunderstorms
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A Flood Watch is in effect for Washington, D.C., much of Maryland and northern Virginia ahead of showers and thunderstorms expected to move through the region on Monday afternoon.

Flood Watch issued for much of DC region ahead of expected Monday thunderstorms
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A Flood Watch is in effect for Washington, D.C., much of Maryland and northern Virginia ahead of showers and thunderstorms expected to move through the region on Monday afternoon.

Scattered storms and a drop in temperatures bring slight relief to the DMV
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The DMV area is experiencing slightly cooler temperatures in the 90s alongside scattered showers and thunderstorms, though a heat advisory remains in effect with heat indices still reaching the triple digits. A severe thunderstorm watch and multiple warnings have been issued for several counties as heavy rainfall and lightning move through the region.

DC weather: More heat and storms on the way amid poor air quality
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A combination of dense morning fog, low cloud cover, and residual smoke from holiday fireworks has triggered major air quality and heat advisories across the DMV region. A line of scattered, severe thunderstorms are also expected later on Sunday.

DC Weather: Thunderstorms sweep through DMV on July 4
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The National Weather Service has issued Severe Thunderstorm Warnings for large parts of the DMV, some cells spitting out hundreds of lightning bolts in minutes.

DC ties record high on Fourth of July
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The heat dome that has gripped the Washington, D.C., region for days pushed temperatures to 100 degrees on Saturday, tying the District’s record high for the Fourth of July.

Washington DC extreme heat wave prompts Fourth of July weather warnings
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An Extreme Heat Warning remains in effect from 10 a.m. Saturday through 9 p.m. this evening, with dangerously hot conditions expected across the region. FOX 5's Tucker Barnes says heat index values could reach 110 to 115. The warning covers Washington, D.C., along with portions of central, north‑central, northeast, northern and southern Maryland, and central, northern and northwest Virginia.

DC weather forecast: Record-breaking heat expected to continue
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Washington, D.C., just saw its second consecutive day of record-breaking heat, hitting 102. Temperatures could continue in the low 100s on July 4th.

DC heat dome: Extreme Heat Warning grips region
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An Extreme Heat Warning is keeping dangerously hot conditions in place across the Washington, D.C., region Friday and into the Fourth of July holiday weekend.

Heat wave delays National Mall events and slows Metro ahead of Fourth of July
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An intense heat wave has forced officials to delay the opening of the Washington Monument grounds and implement reduced speeds on above-ground Metro tracks due to dangerous rail temperatures. Additional safety measures, including potential concert cancellations and increased medical personnel, are being put in place ahead of the busy holiday weekend.

Virginia faces historic drought as Governor Spanberger calls for conservation
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A severe heat wave has pushed Virginia into its driest period since 1941, leaving the entire commonwealth under drought conditions and threatening local agricultural farms. In response, Governor Abigail Spanberger is urging residents to practice voluntary water conservation to avoid mandatory restrictions.

Excessive heat warning in effect as temps soar to over 100 degrees
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With an excessive heat warning in effect from 11 a.m. to 8 p.m., residents should prepare for dangerous conditions as the region enters the core of this severe heatwave.

DC Weather: Heat wave to bring 100-degree temperatures, heat index near 110
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The D.C. region is facing a stretch of dangerous heat, with temperatures expected to climb into the upper 90s today and 100-degree readings possible Thursday, Friday and Saturday. FOX 5’s Tucker Barnes says the heat index could approach 110 by Thursday and Friday afternoon. A heat advisory is set to take effect late this morning, with mostly dry conditions expected today and tomorrow. A few storms are possible Friday and Saturday, which could bring some relief from the extreme heat.

SUMMER WEATHER: Heat Dome Explained
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A heat dome is a ridge of high pressure that traps hot air like a lid on a pot, pushing temperatures roughly 30°F above normal and lingering for days. Instead of letting hot air rise and disperse, the high pressure pushes it back down, compressing and warming it further, while also blocking clouds and storms that might otherwise bring relief. The result: day after day of intensifying heat with little to break the cycle.

What is a heat dome? How will it impact the DC region?
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A heat dome is a ridge of high pressure that traps hot air like a lid on a pot, pushing temperatures roughly 30°F above normal and lingering for days.  Instead of letting hot air rise and disperse, the high pressure pushes it back down, compressing and warming it further, while also blocking clouds and storms that might otherwise bring relief. The result: day after day of intensifying heat with little to break the cycle.

Extreme Heat Watch, Heat Advisories issued as dangerous conditions grip the DMV
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Dangerously hot conditions with extreme heat index values are expected across Washington, D.C., Maryland and northern Virginia from Wednesday through the Fourth of July holiday weekend.