ACR B737 IS GIVEN DIRECT ROUTING AFTER WX DEV. SUBSEQUENT CTLR ISSUE HDG CLRNC TO AVOID OTHER CTR'S AIRSPACE. AFTER TELLING THE FLC TO STAND BY; CTLR APOLOGIZES AND RECLRS THEM DIRECT TO THE PREVIOUS FIX.

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WX IN BWI AREA LEVEL 3/4 TW+ DELAYED WBOUND DEPS OUT OF BWI. AFTER DELAY CLRED FOR TKOF VECTORS WERE NEEDED TO GET AROUND SEVERAL CELLS. APPROVED BY BWI DEP. GIVEN VECTORS TO J220 AFTER DEV INTERCEPTED J220 AND HANDED OFF TO WASHINGTON. UPON CONTACT WE NEEDED FURTHER DEVS FOR WX. AFTER DEV WE WERE GIVEN HDG TO INTERCEPT J220 AND SHORTLY AFTER GIVEN DIRECT IHD (108.2) AT THIS TIME. AT TIME OF CONTACT ATC ASKED WHERE WE WERE GOING AND TO TURN TO A 270 DEG HDG BECAUSE OF POSSIBLE AIRSPACE VIOLATION. WE ADVISED HIM WE WERE GIVEN DIRECT IHD (108.2). AFTER WX DEV HE SAID WE WERE ENTERING NEW YORK AIRSPACE AND TO STANDBY. AFTER COMING BACK HE APOLOGIZED AND CLRED US DIRECT IHD AGAIN. HE ADVISED US HE WAS EXTREMELY BUSY AND HANDED US OFF TO CLEVELAND AIRSPACE. THIS SIT IS NOT EASILY AVOIDED WHEN NUMEROUS WX DEVS ARE IN PROGRESS. I AGREE IT WAS BUSY BUT THAT SHOULD NOT ALLEVIATE PLT/CTLR RESPONSIBILITY. THIS PARTICULAR DEV (WX) CAME AT A POINT WHERE 3 AIRSPACES (WASHINGTON/NEW YORK/CLEVELAND) ALL COME TOGETHER; MAKING DEVS DIFFICULT TO COORDINATE.