Storm Prediction Center Day 1 Fire Weather Outlook
Created: Wed Sep 20 07:08:03 UTC 2017 ( | )
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ZCZC SPCFWDDY1 ALL FNUS21 KWNS 200706 Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0206 AM CDT Wed Sep 20 2017 Valid 201200Z - 211200Z ...Synopsis... The large-scale upper trough over the West is expected to amplify today, as an embedded shortwave trough drops southeastward from the Pacific Northwest into portions of CA/NV. Relatively dry and windy conditions will persist over portions of the Southwest and also across parts of the central High Plains, resulting in an elevated fire weather threat. ...Northeast AZ/Northwest NM into the Four Corners Region... Sufficient residual low-midlevel flow and dry conditions will result in the development of elevated to locally critical wind/RH conditions over portions of AZ/NM into southern UT/southwest CO. Fuels are rather marginal across this region, though some curing of finer fuels will have occurred on Tuesday. The elevated area has been maintained over portions of northeast AZ/northwest NM into the Four Corners region, where the most substantial wind/RH conditions appear likely to develop. At this time, the best chance for critical wind/RH appears to be over northeast AZ/southeast UT, where fuels are quite marginal, displaced to the west of the drier fuels over northwest NM. ...Central/Northern High Plains... Relatively dry and breezy conditions are expected over portions of the central and northern High Plains this afternoon. Sustained winds of 15-25 mph combined with minimum RH values of 10-20% will result in elevated to locally critical fire weather conditions. At this time, confidence in a sufficient duration of critical wind/RH at any one location is too low for an upgrade. ..Dean.. 09/20/2017 ...Please see www.spc.noaa.gov/fire for graphic product...
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