Significant winter storm to bring heavy mountain snow, gusty winds, anddangerous travel conditions to much of the WestAlready anomalously warm temperatures for the Plains/Midwest will geteven warmer Monday and Tuesday, with widespread record-tying/breakinghighs possible.Increasing shower and thunderstorm chances for the Midwest/Great Lakeslate Tuesday, with the threat for locally heavy rainfall and severeweather.An upper-level trough/strong cold front dropping southward from thenortheastern P...