FNUS22 KWNS 231919 FWDDY2 Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0218 PM CDT Sun Aug 23 2026 Valid 241200Z - 251200Z ...Northern Great Basin... A subtle upper-level wave still off the CA coast will glance through northern CA and the northern Great Basin D2/Monday. This feature along with a transient mid/upper level moisture plume and increasing afternoon instability, will promote isolated high-based convection across portions of northern NV, southeast OR, southwest ID and far northeast CA Monday afternoon and early evening. A dry, well-mixed boundary layer and faster shower/thunderstorm trajectories should limit surface precipitation and promote an increased ignition potential amid a receptive fuelscape. ...Southern Plains... Dry west/southwest flow south of an emergent surface low across western OK will bring elevated fire weather conditions to the Rolling Plains of northwest TX and far southwestern OK on D2/Monday. Although some rainfall has occurred in parts of northwest TX, above normal temperatures in the lower 100s and relative humidity reductions to around 15 percent by peak afternoon heating will quickly dry out overall dormant/cured fine fuels. The existing Elevated Highlights were shifted slightly southward based on latest model guidance. ..Williams.. 08/23/2026 .PREV DISCUSSION... /ISSUED 0158 AM CDT Sun Aug 23 2026/ ...Synopsis... Embedded within a belt of enhanced southwesterly flow aloft, a subtle/low-amplitude wave will overspread parts of the northern Great Basin. Here, sufficient midlevel moisture atop a diurnally deepening boundary layer will promote isolated high-based thunderstorms across parts of northern NV, southeast OR, southwest ID, and far northeast CA during the afternoon and early evening. PW values around 0.6 inches will favor mostly dry thunderstorms, which will pose a risk of isolated lightning-induced ignitions, given a dry/receptive fuelscape (90th-95th percentile ERCs). Farther south, a surface low will evolve eastward across parts of the southern Plains during the day. A tightening pressure gradient peripheral to this feature will aid in the development of 15-20 mph sustained west-southwesterly surface winds across parts of the TX South Plains into southwest OK during the afternoon. These winds, combined with 15-20 percent RH, will lead to elevated fire-weather conditions. ...Please see www.spc.noaa.gov/fire for graphic product... $$