SPC Day 2 Fire Weather Outlook

By Newsroom America Feeds at 19 Mar 2017

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0235 PM CDT Sun Mar 19 2017 Valid 201200Z - 211200Z ...Portions of Eastern CO...Southeast WY...NE Panhandle... Some weakening of the pressure gradient is expected on Monday across the CO Front Range and central High Plains, but residual west-southwesterly low-midlevel flow should be sufficient to support surface winds of 15-20 MPH as deep mixing occurs during the afternoon. These winds, in conjunction with minimum RH values of 8-18%, will support an elevated fire weather threat across portions of eastern CO, southeast WY, and at least a small part of the NE Panhandle. ...Portions of West/North TX...OK... Record temperatures will be approached or exceeded across portions of west/north TX and much of OK on Monday afternoon, just ahead of a weak surface boundary. Very strong heating/mixing will support minimum RH values of 15-25 percent in areas that heat up into the 90s F. Meanwhile, ahead of the boundary, a modest southwesterly low-level jet will support sustained winds of 15-20 mph with higher gusts as the boundary layer deepens during the afternoon. These conditions will support an elevated fire weather threat. Localized critical conditions will be possible, but with some displacement expected between the strongest winds and lowest RH, no such delineation has been made in this outlook. ..Dean.. 03/19/2017 .PREV DISCUSSION... /ISSUED 0156 AM CDT Sun Mar 19 2017/ ...Synopsis... The primary corridor of strong mid-level flow will encompass the north-central U.S. into the Great Lakes region as a mid-level trough approaches the West Coast. In the low levels, surface high pressure will strengthen over the northern Great Plains in wake of a cold front as it pushes south across the central Great Plains. High pressure will influence weather conditions over the Southeast and weak winds are forecast over FL despite diurnally minimizing RH over the interior FL peninsula. In summary, quiescent fire weather conditions are forecast across the contiguous U.S. on Monday. ...Please see www.spc.noaa.gov/fire for graphic product... Read more



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