Includes Mariposa and Oakhurst
June 22, 2020 - The National Weather Service Hanford Office has issued a Heat Advisory for the San Joaquin Valley and Sierra Foothills from Tuesday afternoon through Saturday afternoon.
A prolonged period of hot afternoon temperatures is expected this week into the weekend.
This will be the longest stretch of triple digit heat so far this year which could put additional stress on folks that are not acclimated to hot weather and are susceptible to heat stroke and heat exhaustion.
To lower your risk of heat related illness, it’s important to stay hydrated, and remain in an air conditioned home or building.
Avoid spending much time outdoors during the hottest time of the day, generally between noon and 6 pm PDT.
If you must be outdoors, wear light colored, loose fitting clothing, a protective hat and sunscreen.
Never leave pets or children in your car on a hot afternoon.
Area Forecast Discussion National Weather Service Hanford CA 325 AM PDT Mon Jun 22 2020 .SYNOPSIS... A prolonged period of dangerously hot temperatures are expected in the San Joaquin Valley, Sierra Nevada foothills, and Indian Wells Valley Tuesday afternoon through Saturday afternoon. && .DISCUSSION... High pressure at the upper levels will build north from Baja and increase temperatures across the CENCAL interior through the week. We have upgraded the Excessive Heat Watch to a Heat Advisory starting tomorrow and continuing through Saturday for the San Joaquin Valley. The GFS is in agreement with the ECM through Thursday, then they begin to split in their solution afterwards. The GFS is digging a trough into CENCAL by Thursday and cooling us off some...still above normal. The ECM is keeping ridging in over us through Saturday before a stronger trough will move into the area by Saturday night and a significant cool down on Sunday. The National Blended Model is keep us hot through Saturday and is leaning more towards the ECM at this time. Triple digits started in the SJV last Friday and are expected to continue through this upcoming Saturday...which is 8 days. When we have prolonged triple digits for this period of time, it can really begin to wear people down. Please take time to stay cool and hydrated during this prolonged period of dangerous heat. There will be some isolated thunderstorms along the crest on Tuesday and Wednesday afternoon as a weak trough will clip the Sierra and provide some lift for a possible afternoon thunderstorm or two.Source: NWS
