Hydrometeorological Discussion National Weather Service / California Nevada RFC / Sacramento CA 620 AM PDT Thu May 7 2026 ...WARMING WITH DRY CONDITIONS INTO FIRST HALF OF NEXT WEEK... .METEOROLOGICAL CONDITIONS (THU AM - WED AM)... A weak disturbance is continuing to spin over northwest Mexico with little movement during the past 24 hours...while an upr ridge is aligned primarily just off the west coast. This has resulted in light west to northwest flow over the region. As the rest of the week progresses...the weak upr low will slowly makes its way farther downstream of the region...while the upr ridge solidifies itself across the western US. A weak disturbance moving through the flow on Friday and again on Sunday will temporarily flatten the feature a bit...only to see it rebuild as the s/wv trof moves inland. Might see more pronounced flattening or displacement of the upr ridge farther inland by the middle of next week...but latest models do show some disagreement in the overall pattern. Monday and Tuesday are continuing to look like the peak of this upcoming warming with afternoon high temperatures topping out anywhere from plus 10- to plus 25-degF over seasonal normals. Also...not expecting any precip to enter the picture into the middle of next week...at least. Freezing levels are currently running between 12000- and 13500-feet...and will top out on Monday from 13500- to 15500-feet. Please Note: This product may NOT be routinely updated. Please refer to the following product issued by the CNRFC www.cnrfc.noaa.gov/Daily-Briefing for a graphical summary of weather and hydrologic conditions. |