Mariposa projected high temperature for Sunday: 96 degrees, Monday: 95 degrees
Oakhurst projected high temperature for Sunday: 96 degrees, Monday: 95 degrees
Yosemite Valley projected high temperature for Sunday: 89 degrees, Monday: 88 degrees
September 1, 2019 - The National Weather Service Hanford Office reports a warming trend will persist into Sunday, with hot temperatures continuing on Labor Day.
High temperatures will reach as much as 6 to 12 degrees above normal for this time of year.
During this hot period, remember to drink plenty of fluids and limit outdoor exertion. Try to spend time in an air-conditioned room and avoid prolonged exposure to the sun.
Area Forecast Discussion National Weather Service Hanford CA 155 AM PDT Sun Sep 1 2019 .SYNOPSIS... High pressure over Central California will keep the forecast area warm through Labor Day. A trough of low pressure approaching the Pacific Coast will bring slightly cooler weather across the San Joaquin Valley by Tuesday, along with a chance of afternoon showers and thunderstorms across the Sierra Nevada Tuesday through Thursday. && .DISCUSSION... Yesterday was another hot day across Central California, and a few spots in the San Joaquin Valley reached into the triple digits (such as Fresno and Hanford). Hot and dry weather continues today and again on Labor Day. Expect little change in temperatures; however, highs are expected to warm slightly today as high pressure remains in control. Expect gradually lowering temperatures on Tuesday through the end of the week. The ridge of high pressure will be slow to weaken initially, while the upper-level trough approaches the West Coast. Thus, high temperatures on Tuesday will likely lower only by a couple of degrees. Mid-level monsoonal moisture with a south- southeasterly flow aloft is progged to occur by Tuesday and will be sufficient for at least scattered showers and thunderstorms over the Sierra Nevada with isolated storms possible over parts of the adjacent foothills during the afternoon and evening. Also, the Storm Prediction Center`s Day 3 (Tuesday`s) outlook depicts at least a mention of thunder in this area, as well as the desert portions of southeastern California. Expect little change in the weather pattern on Wednesday with another chance for Sierra thunderstorms during the afternoon and evening. Otherwise, some increase in mid- level cloudiness is possible at times on Tuesday and Wednesday. The upper level trough will pass over the region and northern California late Wednesday into Thursday. Models are consistent in keeping the monsoonal moisture flowing into our region, so the threat of showers and thunderstorms will continue over the Sierra Nevada during Thursday afternoon and evening. The approaching trough could push some of the moisture towards the east, so a threat for isolated thunderstorms is anticipated mainly for southern portions of the Sierra Nevada and into Kern County. Models are in a bit of disagreement in terms of placement and trajectory of the trough and its associated low pressure center, so monsoonal moisture could linger over parts of the Sierra into Friday. Highs will lower towards seasonal averages by next weekend as another trough of low pressure approaches Northern California and the Pacific Northwest. This trough is forecast to dig southward by next Sunday, so temperatures may lower even more. This appears to be a mainly dry pattern for us at this time, except for perhaps showers around Yosemite and some increased winds. Regarding Hurricane Dorian, please visit hurricanes.gov for the latest details.Source: NWS
