SPC Day 1 Fire Weather Outlook

By Newsroom America Feeds at 6 Mar 2018

SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0119 AM CST Tue Mar 06 2018 Valid 061200Z - 071200Z ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF THE SOUTHERN/CENTRAL PLAINS...... ...Synopsis... A closed upper-level low embedded with a large-scale trough is located over the central U.S. will move into the Ohio Valley today while becoming highly amplified. A powerful mid-level shortwave trough will traverse the periphery of this trough from the northern High Plains to the Southeast, with enhanced mid-level winds of 60-70 kt overspreading much of the south-central U.S. Meanwhile, a large-sale ridge will develop in the Intermountain West. At the surface, breezy post-frontal northwest winds will develop during the afternoon hours across the Central/Southern Plains, while high pressure builds into the Great Basin region. ...Portions of the Central/Southern Plains... The combination of diurnal heating and vertical mixing will allow enhanced mid-level winds to mix to the surface, resulting in sustained winds of 25-35 mph, gusting to 40-55 mph, during the afternoon, particularly across portions of southern KS, northwest OK, and the TX Panhandle. RH values will fall into the 10-20% range across the region currently experiencing severe/extreme drought conditions and with fuels conducive for large-fire spread. Temperatures will be relatively cool, thus providing somewhat of a limiting factor on the overall fire-weather potential. However, the strong winds and dry conditions will lead to critical fire-weather conditions across the region today. ...Portions of Southern CA... The aforementioned high pressure building into the Great Basin region will allow for an enhanced surface pressure gradient and dry/breezy offshore flow to develop this morning. Despite marginally conducive fuels for large-fire spread, consecutive days of warm/dry conditions should promote the realization fuels in support of elevated fire-weather conditions. ..Karstens.. 03/06/2018 ...Please see www.spc.noaa.gov/fire for graphic product... Read more



[D] [Digg] [FB] [R] [SU] [Tweet] [G]