901 FXUS66 KHNX 280750 AFDHNX Area Forecast Discussion National Weather Service Hanford CA 1250 AM PDT Sun Apr 28 2024 .KEY MESSAGES... 1. A Wind Advisory has been issued for the Mojave Desert Slopes valid 6 PM this evening through 6 AM Monday morning. 2. Gusty winds in the Mojave Desert slopes can be expected for the next couple of evenings, or until Tuesday night into Wednesday morning. 3. High temperatures today are expected to be at least a few degrees warmer than yesterday, or closer to seasonal averages. 4. Dry and warming conditions are expected to continue this week, with highs around 8 to 12 degrees above normal by Friday. && .DISCUSSION... Weak upper-level ridging will build into Central California today with a warming trend and dry conditions. While we will remain under the ridge, a Pacific Northwest trough will continue for the next couple of days. This pattern is favorable for a sufficient gradient to allow gusty winds through the passes and canyons during the early evening hours until the early morning hours for the next couple of days, or through Tuesday evening into Wednesday morning. Temperatures won't be unseasonably warm at least through the middle of this week, but will rise to roughly 10 degrees above average by the end of this week. As it stands, the probability of another 90-degree reading is around 40 to 50 percent for the Central Valley and Kern County desert on Friday and Saturday. As for winds, the probability for a gust of 45 mph is around 70 to 90 percent for the Mojave Desert slopes in eastern Kern County during this evening into Monday morning, based on latest high resolution and blended ensemble guidance. This is similar to the data we were seeing in this area at this time last night. Therefore, we will launch another Wind Advisory for this area later tonight. The probabilistic data for gusty winds in this area will remain similar for the next couple of evenings, or Tuesday evening into Wednesday morning. This makes sense, given the overall weather pattern remains similar for both the surface and upper-levels. Additionally, this is a pattern typical of mid-spring. A potential pattern shift arrives next Sunday or the following week, based on the latest outlooks from the Climate Prediction Center which for the past couple of days has been showing a slight tilt in the odds for above average precipitation coupled with below average temperatures. In any case, it appears typical spring weather will continue. && .AVIATION...Gusty winds will redevelop along the Mojave Desert slopes in eastern Kern County this evening until Monday morning with gusts of 35 to 45 kts. Otherwise, VFR conditions will prevail throughout Central California for at least the next 24 hours. && .AIR QUALITY ISSUES... None. && .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... Wind Advisory until 3 AM PDT early this morning for CAZ338. && $$ BSO/DCH weather.gov/hanford