Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
3 3 3 2 3 2 3 3 3 3 3 2 3 2 3 3 00-HR Forecast Soundings Valid 12Z - 21 Oct 2014 12Z Analysis - Today (21 Oct 2014) 51 47 170 3 3 3 2 3 2 3 2 2 3 2 3 3 3 3 3 3 2 3 2 3 2 2 3 2 3 3 3 12-HR Forecast Soundings Valid 00Z - 22 Oct 2014 12-HR Forecast – Valid 00Z - 22 Oct 2014 60 46 160 2 3 3 3 2 2 3 2 3 3 2 3 2 3 3 3 2 2 3 2 3 3 2 3 24-HR Forecast Soundings Valid 12Z - 22 Oct 2014 24-HR Forecast – Valid 12Z - 22 Oct 2014 43 42 220 Forecast for Huntsville AL Today: Mostly sunny. Highs in the lower 70s. Light winds becoming north around 10 mph in the afternoon. Tonight: Clear. Lows in the lower 40s. Light winds. Wednesday: Sunny. Highs in the upper 60s. North winds around 10 mph. Forecast Reasoning The Tennessee Valley is under a cold air advection regime with northwesterly to northerly flow for the next 24-36hrs. Upper level confluence (directional conv.) and mass pile-up due to the curvature term of the ageostrophic wind equation will keep high pressure in place over the forecast period. The subsidence associated with surface high pressure and upper level convergence will keep skies mostly clear through Wednesday. A reinforcing cold front will pass through the Tennessee Valley overnight keeping cooler and drier air in place, thus no significant chances for clouds or precipitation over most of the region. Sunny skies will allow temperatures to rebound into the lower 70s today prior to the passage of the reinforcing cold front. Dewpoints behind the front are in the lower 40s, so expect temperatures to drop into the low 40s overnight with the clear skies, light winds, and dry air in place. Stronger cold air advection on Wednesday after the passage of the cold front will only allow temperatures to climb into the uppr 60s despite the mostly sunny skies. Steep lowlevel lapse rates in the afternoon will promote turbulent mixing and winds speeds climbing to around 10mph for both Today and Wednesday.