433 FXUS66 KHNX 060034 AAA AFDHNX Area Forecast Discussion...UPDATED National Weather Service Hanford CA 534 PM PDT Sat Nov 5 2022 .UPDATE...Updated Air Quality Issues Section... && .SYNOPSIS...Expect clouds and just some light rain spreading across the area tonight ahead of a slow moving storm system. This system will bring Widespread rain and mountain snow Sunday through Wednesday morning along with increased winds and well below normal temperatures. There is a slight chance for thunderstorms Monday and Tuesday. && .DISCUSSION...Moisture streaming inland ahead of a developing Northeast Pacific low pressure system is spreading some clouds southward into central California today. Meanwhile, temperatures are generally running a few degrees warmer than this time yesterday and highs are expected to top out a few degrees below normal. Winds are also becoming gusty through and below mountain passes, and a Wind Advisory is in effect for the Mojave slopes in Kern County through this evening. The incoming storm system is still projected to bring significant amounts of precipitation as it tracks slowly south before swinging inland across Northern/Central California Tuesday into Wednesday. Blended model guidance predicts generally light precipitation moving over mainly the northern half of our area overnight, with more impactful rain and snow developing during the day Sunday as the system drops south and moisture is pulled into our area. By Sunday afternoon a Winter Storm Warning will go into effect in the Sierra zones north of Kings Canyon, as snow accumulations begin to cause travel impacts. As heavy snow spreads south in the Sierra,a Winter Storm Warning goes into effect from Kings Canyon south to Kern County at 10 PM. These warnings continue through 10 AM Wednesday morning when the precipitation will taper off behind the passing storm system. The Yosemite Valley zone has been included in the Winter Storm Warning as several inches of snow are expected to accumulate there as snow levels drop Monday. Total accumulations around 4 feet are possible in the higher elevations, with as much as 1-2 feet down around 4000 ft as snow levels lower with the incoming storm system. By later Monday, significant snow amounts begin to accumulate at the higher elevations in Kern County, with as much as 7-14 inches on the highest peaks. As snow levels drop to pass level later Tuesday into early Wednesday morning, we could see snow impacting travel over the passes of Kern County. Currently there is a 25 percent probability for at least 0.01 inch of snow at Fort Tejon overnight Tuesday night, and a 40 percent probability at Tehachapi. A Winter Storm Watch has been issued for the Kern County mountain zones Monday evening through Wednesday morning. With as much as 1-2 inches of rain expected toward the est side of the San Joaquin Valley and 2-4 inches in the Sierra foothills, we will have to consider the possibility of localized flooding in these areas. As the storm system moves away, we will see ridging overhead for mid to late week next week. Temperatures will remain well below normal with frost likely in the Valley in the early morning hours, and possible fog concerns. && .AVIATION...Clouds and light showers will spread southward across central California overnight and through the day Sunday, creating areas of MVFR conditions. && .AIR QUALITY ISSUES...On Sunday November 6 2022...Fireplace/Wood Stove Burning Status is: No Burning Unless Registered in Fresno and Kern Counties. Burning Discouraged in Kings... Madera... Merced and Tulare Counties... and Kern (Greater Frazier Park Area) and Sequoia National Park and Forest. && .CERTAINTY... The level of certainty for days 1 and 2 is medium. 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 an/or to provide feedback. && .HNX WATCHES/WARNINGS/ADVISORIES... Wind Advisory until 11 PM PDT this evening for CAZ338. Winter Storm Warning from 4 PM Sunday to 10 AM PST Wednesday for CAZ323-324-326. Winter Storm Warning from 10 PM Sunday to 10 AM PST Wednesday for CAZ327>331. Winter Storm Watch from Monday afternoon through late Tuesday night for CAZ333>336. && $$ public...JEB aviation....JPK weather.gov/hanford