FXUS66 KHNX 021833 AFDHNX Area Forecast Discussion National Weather Service Hanford CA 1033 AM PST Mon Feb 2 2026 .KEY MESSAGES... 1. Dense Fog with a Very High Transportation Risk with visibility down to zero each morning through this week in the San Joaquin Valley. 2. Dry conditions and near to above average temperatures continue for the next week. && .DISCUSSION... Widespread dense fog developed throughout the Central Valley last night into this morning and has resulted in more traffic collisions and school delays. It cannot be stressed enough that motorists take caution if they have to drive in areas with reduced visibility. This week will be associated with high pressure ridging and continued nighttime and morning fog in the Valley. Probabilities for visibility below 1/4 mile are 60 to 70 percent tonight into Tuesday, and there is a similar likelihood again Tuesday night into Wednesday. This pattern will continue until at least late this week. In addition, easterly winds will increase over the Kern County mountains and desert starting Tuesday and will last through at least Thursday due to the ridging over our area coupled with an upper-level low off the coast of Baja California. The chances for a 40 mph or stronger gust in these areas are 20-30 percent for this period. There is a 20-30 percent chance for light precipitation in our area by Sunday, mainly Fresno County northward from the coastal ranges to the Sierra. Chances increase to 30-40 percent by next Monday. An upper-level trough will pass over our forecast area during that time. We will continue to monitor for additional fog in the Valley; however, the likelihood decreases. The CPC outlooks continue to suggest a shift to a more active storm pattern starting next week, including a 50-60 percent chance of above average precipitation, per the latest 8-14 day outlook. Also, the 6-10 day outlook shows up to 40-50 percent chance of above average precipitation. Warmer than average temperatures are also shown for both the 6-10 day and 8-14 day periods. && .AVIATION... IFR conditions due to fog/cigs will continue at the TAF sites until 20Z Monday. Dense fog with LIFR to VLIFR conditions will return by 06Z Tuesday and last until 20Z Tuesday. There is a 60-70% chance of reaching VLIFR conditions in dense fog. Otherwise, VFR conditions are expected for the Sierra Nevada, Coastal Range, and Mojave Desert for the next 24 hours. && .AIR QUALITY ISSUES... On Monday February 2 2026, Unhealthy for Sensitive Groups in Fresno, Kern, Kings, and Tulare Counties. Fireplace/Wood Stove Burning Status is: No Burning For All in Fresno and Kern Counties. No Burning Unless Registered in Kings, Madera, Merced, and Tulare Counties. Burning Discouraged in Kern (Greater Frazier Park Area) and Sequoia National Park and Forest. && .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... Dense Fog Advisory until noon PST today for CAZ301>303-305>307- 309>316. && $$ BSO weather.gov/hanford