Area Forecast Discussion
Issued by NWS San Joaquin Valley, CA
Issued by NWS San Joaquin Valley, CA
815 FXUS66 KHNX 131640 AFDHNX Area Forecast Discussion National Weather Service Hanford CA 940 AM PDT Wed May 13 2026 && .KEY MESSAGES... 1. Lake Wind Advisory remains in effect until 8 pm Wednesday for the Kern River Valley. 2. Practice safety around area lakes, rivers, and streams as waters are still running cold. 3. A warming and drying trend the next few days. 4. Increasing fire risk as the weekend approaches. && .DISCUSSION... A trough moving through the Pacific Northwest will bring some relief from the extreme heat, with highs across the Valley in the lows 80s to near 90 Wednesday. As the trough clears the area, temperatures will warm a bit, with highs expected in the high 80s to mid 90s across the Valley by Friday. Conditions will stay dry during this period, though a stray lightning strike in the Sierra Nevada cannot be ruled out (5-10% probability each day). As another trough passes through the Pacific Northwest this weekend, the area will see another minor cooldown, though a ridge will begin to build back into the area after that, with a 10-25% chance of triple-digit temperatures in the Valley on Tuesday, increasing to 15-40% on Wednesday. Relative humidity values will be on an overall decreasing trend over most of the next seven days, and this, in tandem with increasing temperatures and periods of windy conditions, will create elevated fire concerns beginning Friday. Rivers, lakes, and streams are all still quite cold; practicing water safety is paramount. && AVIATION... VFR conditions will prevail across Central California for the next 24 hours, with stronger winds developing this afternoon and evening. && .AIR QUALITY ISSUES... No air quality issues today. Minor air quality issues may arise Thursday and Friday. && .CERTAINTY... The level of certainty for days 1 and 2 is high. The level of certainty for days 3 through 7 is medium. Certainty levels include low...medium...and high. Please visit www.weather.gov/hnx/certainty.html for additional information and/or to provide feedback. && .HNX WATCHES/WARNINGS/ADVISORIES... Lake Wind Advisory until 8 PM PDT this evening for CAZ332. && $$ public...AC aviation....AC weather.gov/hanford