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Forecast Mark Dates (Please 'click' on a Mark Date below) Summary (Official)   Summary (Official) includes only the list of forecast inputs that are well tested and used frequently. This includes all human forecasts, the ECMWF and CFS inputs, Normals, Trend, an MJO Analog inputs and a few others. ? : All    Winter 2018-19    Summer 2019    Winter 2019-20    Summer 2020    Winter 2020-21    Summer 2021    Winter 2021-22    Summer 2022    Winter 2022-23    Summer 2023    Winter 2023-24    Summary (Sandbox) Summary (Sandbox) includes all inputs from Summary (Official) along with inputs that are being tested (but not fully vetted) such as the Persistence inputs. ? : All    Winter 2018-19    Summer 2019    Winter 2019-20    Summer 2020    Winter 2020-21    Summer 2021    Winter 2021-22    Summer 2022    Winter 2022-23    Summer 2023    Winter 2023-24    Weekly: 2018-19 Summer Winter 20181113 20181120 20181127 20181204 20181211 20181218 20181225 20190101 20190108 20190115 20190122 20190129 20190205 20190212 20190219 20190226 20190305 20190312 20190319 20190326 20190402 20190409 20190416 20190423 20190430 Weekly: 2019-20 Summer 20190507 20190514 20190521 20190528 20190604 20190611 20190618 20190625 20190702 20190709 20190716 20190723 20190730 20190806 20190813 20190820 20190827 20190903 20190910 20190917 20190924 Winter 20191001 20191008 20191015 20191022 20191029 20191105 20191112 20191119 20191126 20191203 20191210 20191217 20191224 20191231 20200107 20200114 20200121 20200128 20200204 20200211 20200218 20200225 20200303 20200310 20200317 20200324 20200331 20200407 20200414 20200421 20200428 Weekly: 2020-21 Summer 20200505 20200512 20200519 20200526 20200602 20200609 20200616 20200623 20200630 20200707 20200714 20200721 20200728 20200804 20200811 20200818 20200825 20200901 20200908 20200915 20200922 20200929 Winter 20201006 20201013 20201020 20201027 20201103 20201110 20201117 20201124 20201201 20201208 20201215 20201222 20201229 20210105 20210112 20210119 20210126 20210202 20210209 20210216 20210223 20210302 20210309 20210316 20210323 20210330 20210406 20210413 20210420 20210427 Weekly: 2021-22 Summer 20210504 20210511 20210518 20210525 20210601 20210608 20210615 20210622 20210629 20210706 20210713 20210720 20210727 20210803 20210810 20210817 20210824 20210831 20210907 20210914 20210921 20210928 Winter 20211005 20211012 20211019 20211026 20211102 20211109 20211116 20211123 20211130 20211207 20211214 20211221 20211228 20220104 20220111 20220118 20220125 20220201 20220208 20220215 20220222 20220301 20220308 20220315 20220322 20220329 20220405 20220412 20220419 20220426 Weekly: 2022-23 Summer 20220503 20220510 20220517 20220524 20220531 20220607 20220614 20220621 20220628 20220705 20220712 20220719 20220726 20220802 20220809 20220816 20220823 20220830 20220906 20220913 20220920 20220927 Winter 20221004 20221011 20221018 20221025 20221101 20221108 20221115 20221122 20221129 20221206 20221213 20221220 20221227 20230103 20230110 20230117 20230124 20230131 20230207 20230214 20230221 20230228 20230307 20230314 20230321 20230328 20230404 20230411 20230418 20230425 Weekly: 2023-24 Summer 20230502 20230509 20230516 20230523 20230530 20230606 20230613 20230620 20230627 20230704 20230711 20230718 20230725 20230801 20230808 20230815 20230822 20230829 20230905 20230912 20230919 20230926 Winter 20231003 20231010 20231017 20231024 20231031 20231107 20231114 20231121 20231128 20231205 20231212 20231219 20231226 20240102 20240109 20240116 20240123 20240130 20240206 20240213 20240220 20240227 20240305 20240312 20240319 20240326 20240402 20240409 20240416 20240423 20240430 « »                                           Predictand: , Markdate: , Target Window:
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