A sometimes gusty breeze from the east has left us a few degrees cooler than yesterday, but all in all today’s sun and highs in the mid-60s makes two nice ones in a row. That’s no chump change in what’s been a rather frustrating spring for those seeking consecutive nice days. The streak ends tomorrow with showers likely and storms possible late. Sunday looks much improved as does the first part of the next work week.
Through Tonight: Clouds increase this evening but we should stay dry with pleasant evening temperatures falling into the 50s. Overnight, clouds thicken and there’s a chance of showers toward sunrise as lows bottom in the upper 40s to low 50s.
Tomorrow (Saturday): Showers are a near certainty tomorrow. They might be light and intermittent through morning into afternoon as overcast skies limit highs to near 60 or the low 60s, with the best chance of heavy rain and thunderstorms (see below for severe potential) during the late afternoon or evening. Winds from the east/southeast at 15-30 mph may gust near 35-40 mph in the afternoon.
Flood concerns: Rain potential for the metro area through tomorrow night is around 1”, with the bulk of it probably tomorrow afternoon into evening. Higher terrain west of Loudoun and Fauquier counties could see higher rain totals, possibly 1-2”. That, and soil saturated by recent heavy rains, has prompted a Flash Flood Watch for the Blue Ridge and west into W.V. tomorrow. Closer to home, coastal flooding is a concern along the Potomac River and Chesapeake Bay due to the potential for heavy rain and a prolonged period of moderate winds from the east/southeast. A Coastal Flood Watch is in effect tomorrow afternoon through late tomorrow night.
Severe t’storms & tornadoes: Yesterday it was Oklahoma and today it’s been Mississippi and Alabama under the gun for severe thunderstorms and tornadoes. The Weather Channel has been tweeting about multiple tornado reports and extensive damage. Jackson, Miss., has been especially hard hit. The storms are all part of the same system set to come through the D.C. area tomorrow into tomorrow night. While the system should lose some of its punch as it moves into cooler and more stable air east of the Appalachians, we’ll still need to watch for the chance of a severe thunderstorm or two with damaging winds late tomorrow afternoon or evening, especially south of D.C.