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SPC Day 1 Fire Weather Outlook

Weather - Fire Weather - Sun, 12/24/2017 - 09:53
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0952 AM CST Sun Dec 24 2017 Valid 241700Z - 251200Z ...NO CRITICAL AREAS... No changes have been made to the ongoing forecast. See the previous discussion below for more information. ..Gleason.. 12/24/2017 .PREV DISCUSSION... /ISSUED 1149 PM CST Sat Dec 23 2017/ ...Synopsis... Mid/upper-level ridging over the far western CONUS is forecast to weaken today, with cyclonic flow becoming re-established across the CONUS. At the surface, high pressure over the northern Great Basin and Rockies early today will weaken by afternoon, while another area of high pressure builds southward into the southern Plains in the wake of a frontal passage. A relatively cold air mass across much of the CONUS is expected to limit large-scale fire weather concerns. ...Southern California... While a dry low-level air mass (RH values of 5-15%) is forecast to remain over inland areas and fuels remain exceptionally dry, a weak pressure gradient will keep wind speeds relatively light (e.g., less than 10 mph). Nevertheless, terrain influences may modestly enhance low-level flow creating locally elevated fire weather conditions. However, the spotty/brief nature of the threat precludes introduction of an Elevated fire weather area. ...Please see www.spc.noaa.gov/fire for graphic product... Read more
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