Mincha: as the day before, Ashrei, U’va LeTziyyon, half kaddish, the usual Festival Shalosh Regalim Shemoneh Esreh and the chazzan’s repetition followed by Kaddish Tiskabbel, Aleinu and Kaddish Yasom, the Mourner’s Kaddish.
Maariv: Yom Tov concludes at 8:27 p.m., N.Y.C. E.D.T., the usual weekday Maariv Tefilla, with the inclusion of Ata Chonantanu followed by Sefiras HaOmer. We make Havdala (without a flame or spices) at home. (Some are accustomed to recite Havdala in shul as well.)
Wednesday morning: Isru Chag – Shacharis as usual, but we do not say Tachanun until the end of Nissan.
The following chapters of Tehillim are being recited by many congregations and Yeshivos for our brothers and sisters in Eretz Yisrael: Chapter 83, 130, 142. –Y.K.