updated at 4:30 p.m. and 1:15 p.m., originally posted at 5:45 a.m.
Severe thunderstorm watch for Stafford co. (in Va.) to Charles co. in Md. and points south until 10 p.m.
Violent storm sweeps through area, kills one | Storm video
Storm damage pics from Arlington (from @bslilly via Twitter)
Code orange air quality: unhealthy for sensitive groups
Get the ‘Digit’ on Twitter
Today: Partly sunny, chance of storms late. Near 90. | Tonight: Early storm possible, then partly cloudy. 60s to near 70. | Tomorrow: Partly cloudy. 86-91. | Get Express Forecast by E-mail
The frontal system which produced all of the thundery mayhem Sunday sinks south today. But it doesn’t scoot far enough away to break the heat or kill the storm threat. In fact, for much of the upcoming week, fronts flirt with us - never really clearing the air. That means regular storm chances and no real relief from 90 degree heat.
Today (Monday, July 4): Let’s start off with the good: it won’t be as humid as Sunday. However, it’s just about as hot and a wave moving along the front just to our south makes a close enough approach to produce a storm or two late in the day and into the evening. The best chance of storms is south of D.C. towards Fredericksburg, but we still have about a 20-30% chance. Highs should reach around 90, with a breeze from the northwest at 5-10 mph. Confidence: Medium
Tonight: A thunderstorm can’t be ruled out in the evening, maybe even coinciding with fireworks. However, the storm threat is more likely earlier and to the south. Outside of any storms, skies are partly cloudy, with lows from the low 60s in the cooler suburbs to near 70 dowtown. Confidence: High
Keep reading for the forecast through the weekend...
Tomorrow night: Mostly clear and more-or-less pleasant. Lows range from near 60 in the cooler suburbs to the upper 60s downtown. Confidence: Medium-High
Wednesday through Friday are all pretty much the same. Each day brings partly sunny and about a 20-30% chance of afternoon storms due to the proximity of a stalled out front. Highs each day should be near 90, with overnight lows in the 60s to near 70. Confidence: Medium
We probably can’t entirely rid ourselves of the front over the weekend, but some of the guidance does push it far enough south to dry things out a little and drop temps a few degrees. So right now, I’ll go with highs in the upper 80s and just a 20% of an isolated late day storm each day. Confidence: Low-Medium