EVENT TIME: 14/1500 - 15/0400 CONSTRAINED FACILITIES: ZDC 1533 WX: 1500-0400 5/15 DC METRO SWAP IMPLEMENTATION PLAN_FYI THIS ADVISORY IS FOR PLANNING PURPOSES ONLY. CUSTOMERS ARE ENCOURAGED TO FILE NORMAL ROUTINGS AND ANTICIPATE THE SPECIFIED ALTERNATE ROUTES. SWAP STATEMENT: SEVERE WEATHER AVOIDANCE PLANS ARE EXPECTED FOR THE ZDC AIRSPACE. SIGNIFICANT AVIATION IMPACTS ARE EXPECTED THIS AFTERNOON/EVENING ACROSS MUCH OF THE NORTHERN HALF OF ZDC DUE TO THUNDERSTORMS. A FEW THUNDERSTORM CLUSTERS/LINE SEGMENTS WILL BEGIN TO FORM/MOVE INTO NW ZDC AROUND 18Z. CONTINUED STRONG GROWTH AND ORGANIZATION INTO ONE OR MORE NE-SW ORIENTED LINE(S)...WITH A FEW CLUSTERS...WILL OCCUR AS THE THUNDERSTORMS MOVE RAPIDLY E-SE TOWARD THE DC METROS-RIC CORRIDOR BETWEEN 19Z AND 22Z. THE THUNDERSTORM LINE(S)/CLUSTERS WILL CONTINUE TO MOVE QUICKLY E-SE...REACHING THE DELMARVA-ORF-NE NC CORRIDOR AROUND 01Z OR 02Z. EXPECT NUMEROUS TOPS ABOVE FL400 AS STORMS MOVE TOWARD THE E-SE AT 30-45KTS. SOME STORMS MAY BE SEVERE WITH WIND GUSTS IN EXCESS OF 50 KTS AND LARGE HAIL. Â PLANNED ALTERNATE DEPARTURE ROUTES: CDRS FOR BUFFR, JERES, OTTTO, RAMAY, MOL, GVE AND COLIN WILL BE UTILIZED AS ROUTES ARE IMPACTED. Â SWANN AND PALEO ROUTES MAY ALSO BE AFFECTED LATE IN THE DAY AS THE WEATHER MOVES EAST ACROSS ZDC AND THE DC METRO AREA. NY/DC/PHL METRO DEPARTURES FILED J6, J48,J42 AND J75 MAY BE SWAPPED AFTER 1800Z PLANNED ALTERNATE ARRIVAL ROUTES: FLIGHTS INTO THE DC/NY METRO AREA MAY BE SWAPPED BETWEEN ZOB,ZJX,ZTL AND ZID AS ROUTES ARE IMPACTED AFTER 1800Z. Â DC METRO ARRIVALS MAY EXPERIENCE GROUND STOPS AND HOLDING AFTER 1800 DUE TO WEATHER AT THE TERMINAL. Â FUEL ADVISORY: AIRCRAFT CAPPING AT OR BELOW 100 IS POSSIBLE FOR DESTINATIONS OUT TO 100 MILES FROM THE OTTTO, RAMAY, MOL AND GVE DEPARTURE POINTS AND MAY INCLUDE CAPPING PLAYBOOKS IN THIS AREA. HOTLINE ACTIVATION: EXPECTED AFTER 1800Z. (540) 359-3200 Â PIN: 2779