Storm Prediction Center Day 1 Fire Weather Outlook
Created: Sun Apr 30 08:00:04 UTC 2017 ( | )
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ZCZC SPCFWDDY1 ALL FNUS21 KWNS 300755 Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0255 AM CDT Sun Apr 30 2017 Valid 301200Z - 011200Z ...Synopsis... An upper low centered over the TX/OK Panhandles early this morning will move northeastward across the central/southern Plains today, reaching the upper MS Valley and Upper Midwest by the end of the period. A cyclonically curved belt of enhanced mid-level winds will remain across parts of the Southwest into the southern Plains through this evening, before gradually weakening through early Monday morning across this region. At the surface, a low over KS/OK will develop northeastward in a similar fashion to the upper low through the period. A dry, post-frontal airmass will reside across the Southwest and southern Plains. ...Portions of Southeastern AZ into Southern NM and South TX... Elevated fire weather conditions are anticipated today from portions of southeastern AZ into southern NM and continuing into south TX. Across this region, sustained northwesterly post-frontal winds should increase into the 15-20 mph range as diurnal mixing of the boundary layer allows for efficient downward transfer of enhanced mid-level winds to the surface. Although temperatures will generally not be overly warm given the post-frontal airmass, diurnal heating and some downslope warming/drying with low-level trajectories off higher terrain in Mexico and NM should allow RH values to fall into the 7-15% range for a few hours this afternoon from southeastern AZ into southern NM and far west TX (roughly the Big Bend region). From the middle Rio Grande Valley southeastward into deep south TX, RH values should generally fall into the 15-25% range this afternoon. Sustained winds above 20 mph are expected on just a localized basis across parts of far west TX, which precludes the introduction of a critical area. ..Gleason.. 04/30/2017 ...Please see www.spc.noaa.gov/fire for graphic product...
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