SPC Day 2 Fire Weather Outlook

By Newsroom America Feeds at 16 Feb 2018

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0135 AM CST Fri Feb 16 2018 Valid 171200Z - 181200Z ...Synopsis... A shortwave trough over the High Plains Saturday morning will move eastward to the Great Lakes and OH Valley by Saturday evening. An upstream shortwave trough should move across the Pacific Northwest and northern Rockies from Saturday evening through the end of the period. Surface high pressure centered over the eastern CONUS will develop eastward off the East Coast, while lee troughing develops over the High Plains. A separate surface trough/front associated with the shortwave trough over the Plains should move southward across KS into parts of northern OK by Saturday afternoon. ...Portions of the Southern/Central Plains... Strong/gusty northwesterly winds around 15-20 mph should develop Saturday afternoon across parts of KS into northern OK behind a surface trough/front. Although temperatures should not warm substantially due to some low-level cold air advection, an antecedent dry airmass and diurnal mixing of the boundary layer will likely support RH values falling into the 15-25% range for a few hours through peak heating. Dry/dormant fuels remain in place across this region, and the forecast meteorological conditions support the introduction of an elevated area for parts of KS into northern OK. The lack of an even warmer/drier low-level airmass precludes a critical delineation. ..Gleason.. 02/16/2018 ...Please see www.spc.noaa.gov/fire for graphic product... Read more



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