Administrators NorthGeorgiaWX Posted April 21 Administrators Share Posted April 21 SPC Day 2 Fire Weather Outlook Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0251 PM CDT Sun Apr 21 2024 Valid 221200Z - 231200Z ...NO CRITICAL AREAS... The previous forecast remains on track. Guidance consensus continues to show solidly Elevated equivalent winds and RH to overspread portions of the northern High Plains tomorrow afternoon. Still, fuels appear too poorly receptive to support significant wildfire spread, with fire weather highlights withheld this outlook. A dry thunderstorm or two may also occur along portions of the central High Plains tomorrow afternoon, where fuels are at least modestly receptive to wildfire spread. However, confidence in storm coverage to prompt more than a localized wildfire-spread threat via lightning-induced ignitions is too low to introduce isolated dry thunderstorm highlights at this time. ..Squitieri.. 04/21/2024 .PREV DISCUSSION... /ISSUED 0154 AM CDT Sun Apr 21 2024/ ...Synopsis... Along the southern periphery of a midlevel low tracking eastward across southern Canada, a swath of strong deep-layer westerly flow will overspread the northern/central Plains into the Upper MS Valley. At the same time, a cold front will move eastward across the region. Behind the front, 20-30 mph sustained west-northwesterly surface winds (with higher gusts) will overlap the northern edge of low boundary-layer RH across eastern MT into the Dakotas. While this may lead to localized fire-weather concerns, preceding rainfall atop already marginal fuels for some areas, and uncertainty regarding RH reductions, limit confidence in the fire-weather threat -- precluding Elevated highlights at this time. Ahead of the front from the southern Plains into the Midwest, a tight pressure gradient beneath a strong low-level jet will yield 20-25 mph sustained southwesterly surface winds (with gusts upwards of 35 mph). However, RH reductions generally appear marginal across this corridor. Nevertheless, the strong/gusty winds may still promote locally elevated fire-weather conditions where fuels are receptive to fire spread. ...Please see www.spc.noaa.gov/fire for graphic product... Read more View the full article Quote Link to comment Share on other sites More sharing options...
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