Fire Weather Outlook Discussion
Issued by NWS
Issued by NWS
661 FNUS21 KWNS 081621 FWDDY1 Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1120 AM CDT Sat Jun 08 2024 Valid 081700Z - 091200Z The ongoing isolated dry thunderstorm area across New Mexico was expanded to the north and east. Isolated thunderstorms are expected to develop this afternoon in association with a small short-wave trough moving northward on the western periphery of a sub-tropical ridge. Additionally, an isolated dry thunderstorm area was added to portions of eastern Nevada and western Utah. A band of ascent is seen on mid-level water vapor moving across central Nevada this morning. This ascent may combine with afternoon heating to result in isolated thunderstorm development. A very dry airmass in place will limit widespread precipitation from reaching the ground. In both of the aforementioned scenarios, only marginally receptive fuels may limit fuel receptiveness to lightning-induced fire starts. Elsewhere, please see below for the meteorological reasoning. ..Marsh.. 06/08/2024 .PREV DISCUSSION... /ISSUED 0158 AM CDT Sat Jun 08 2024/ ...Synopsis... A midlevel ridge will remain in place across the Southwest, supporting continued warm/dry conditions across the region. Along the western portion of the ridge, a modest surface pressure gradient will contribute to 15-20 mph sustained southwesterly surface winds across parts of southern AZ, southwest NM, and far west TX -- where fuels are receptive to fire spread. The combination of mid/upper 90s surface temperatures and single-digit RH amid the breezy surface winds will favor elevated fire-weather conditions during the afternoon. Additionally, a weak/subtle shortwave trough will track northward along the western periphery of the ridge, promoting isolated high-based thunderstorms across parts of southern NM and far west TX during the afternoon -- given sufficient midlevel moisture atop the deeply mixed boundary layer. Limited rainfall is expected with these storms, owing to a deep inverted-V thermodynamic profile. As a result, isolated lightning-induced ignitions will be possible. ...Please see www.spc.noaa.gov/fire for graphic product... $$