Mariposa projected high temperature for Wednesday: 81 degrees, Saturday: 94 degrees
Oakhurst projected high temperature for Wednesday: 81 degrees, Saturday: 94 degrees
Yosemite Valley projected high temperature for Wednesday: 75 degrees, Saturday: 86 degrees
September 11, 2019 - The National Weather Service Hanford Office reports big warm up is in store for the central California interior for the remainder of this week.
High temperatures will reach the century mark over much of the San Joaquin Valley and the Kern County desert by Saturday.
Area Forecast Discussion National Weather Service Hanford CA 329 AM PDT Wed Sep 11 2019 .SYNOPSIS... Dry weather will prevail over the district for the next 7 days. A warming trend will bring temperatures to well above normal Thursday through Sunday. A return to breezy, much cooler weather is likely early next week. && .DISCUSSION...An upper level trough that brought a preview of early Autumn weather to the central California interior the past few days is now exiting into the Great Basin. The onshore flow associated with this system is weakening and so are westerly winds through and below the Kern County mountain passes early this morning. Only a few locations are currently gusting to 45 mph in this region, so will let the wind advisory expire at 5 am PDT as planned. A major warming trend is in store for us during the next few days as a ridge of high pressure aloft gradually builds over the Golden State. Marine air that`s been pooled in the San Joaquin Valley will undergo some modification today as the onshore flow shuts off, but its presence will still keep high temperatures cooler than normal for one more afternoon. Otherwise, the warm up will begin in earnest over the higher terrain today. Hot weather will return to the San Joaquin Valley, lower foothills and the Kern county desert Thursday through the weekend as the high pressure ridge remains in control. Saturday will be the hottest day with a return of triple digit heat over much of the San Joaquin Valley and the Kern county desert. Even as early as Friday, thermometer readings could top the century mark in a few valley and desert locations. High temperatures will begin to ease back on Sunday as the high pressure ridge shifts eastward to the Four Corners region. By then, another upper level trough will be moving into the Pacific Northwest. This trough will bring a much cooler air mass into the central California interior early next week. As it approaches from the northwest Monday, the onshore flow will ramp up again and bring ocean cooled air back into the San Joaquin Valley and lower foothills. The cold front associated with this trough will move southward through the CWA Monday evening with little more than some cloudiness. Gusty winds with and behind this front could kick up some dust again in parts of the San Joaquin Valley and there could be a repeat of advisory level winds through and below the mountain passes Monday night through Tuesday evening. The models keep this trough moving progressively eastward and position it over the Great Basin by the middle of next week. Otherwise, high temperatures Monday through Wednesday will be a good 7 to 12 degrees cooler than normal. The bottom line is we`ll be in for a wild roller coaster ride with temperatures during the next 7 days. We`ll leave Autumn weather behind soon and see a return of Summer heat by the end of this week, then its back to the coolness of early Fall during the early to middle part of next week. Otherwise, dry weather will be the rule for the next 7 days.Source: NWS
