Area Forecast Discussion
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
330 FXUS61 KLWX 070106 AFDLWX Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 906 PM EDT Sat Jun 6 2026 .WHAT HAS CHANGED... Severe Watch has expired as of 8pm. Monitoring showers and thunderstorms moving into Alleghenies. Cannot rule out a rogue stronger storm over next few hours. && .KEY MESSAGES... - 1)) Dry and warm late Sunday and into Monday. - 2) Hot and humid conditions for the second half of the week with daily thunderstorm chances. && .DISCUSSION... KEY MESSAGE 1...Dry and warm late Sunday and into Monday. A front will slide to the south and southwest, stalling as it moves. Limited shower activity expected. As a matter of fact, most places north and east of the Virginia Piedmont will be dry and remaining warm. Highs in the middle 80s to near 90 on Sunday. Low temperatures Sunday night will likely fall into the 60s as a cold front presses further south. Monday will be dry with high pressure building into the region. Highs in the lower to middle 80s. KEY MESSAGE 2...Hot and humid conditions for the second half of the week with daily thunderstorm chances. After the relatively lower temperatures Monday and Tuesday, heat will begin to build Wednesday as the surface high moves off the coast. Ensemble temperature plots suggest Thursday through Saturday will be the hottest days with temperatures potentially well into the 90s. The heat index may rise above 100 degrees in some areas as dew points will be higher these days compared to some of our recent hot days. The higher theta-e airmass will arrive on Wednesday as well. Details are still a little uncertain with how strong mid/upper level ridging will be, and when exactly shortwaves may approach from the northwest. In the end, there is some shower and thunderstorm potential each day Wednesday through Saturday, even if it is ultimately terrain-driven and limited in coverage. There may be some severe weather risk given the heat and humidity, although it may be isolated due to relatively weak shear (assuming a stronger trough does not unfold). It`s possible a cold front and stronger jet streak could approach at some point next weekend. && .AVIATION /00Z SUNDAY THROUGH THURSDAY/... Winds becoming northwest 5 to 10 knots Sunday. Any isolated heavy showers around IAD, DCA or CHO on Sunday could bring brief MVFR conditions and gusts over 30 knots. VFR is expected to prevail Monday into Tuesday. Thunderstorms are possible during the afternoon and evenings of Wednesday and Thursday. Winds likely remain 10 kt or less out of the south or west. && .MARINE... MWSs may be warranted in the central and southern Chesapeake Bay and much of the Potomac waters on Sunday should any convection linger near the surface front. As high pressure moves off the coast, southerly flow will prevail Monday through Thursday. Wednesday may have the highest chance for winds near advisory criteria. However, channeling events could bring marginal advisory conditions each evening/night as well. && .LWX WATCHES/WARNINGS/ADVISORIES... DC...None. MD...None. VA...None. WV...None. MARINE...None. && $$ DISCUSSION...ADS/KLW/CPB AVIATION...ADS/KLW MARINE...ADS/KLW