Area forecast discussion National Weather Service Goodland Kansas 117 PM MDT Tuesday may 21 2013 Short term...(this evening through wednesday) issued at 116 PM MDT Tuesday may 21 2013 Northwest flow will be over the Central Plains tonight and Wednesday with a ridge over The Rockies. Surface high pressure will continue to build south into the plains tonight and Wednesday. Subsidence and lack of moisture support none probability of precipitation for tonight and Wednesday as the upper low shifts further east into the Mississippi River valley. Winds will gradually become light overnight as the atmosphere decouples. Winds will remain light on Wednesday as the upper low moves further away and the surface gradient relaxes. Min temperatures tonight will cool to the 40s. Maximum temperatures Wednesday will rise into the Lower/Middle 70s with a few upper 70s in the southern forecast area. Long term...(wednesday night through tuesday) issued at 110 PM MDT Tuesday may 21 2013 Wednesday night through Friday...still have a bit of concern for some isolated showers/thunderstorms Wednesday night as a weather disturbance to the west of the area during the day slides east across the forecast area overnight. Nose of low level jet strengthens over the area which may provide enough support and negate the lack of moisture below 700mb. For now will maintain silent probability of precipitation. On Thursday low level moisture increases across the area producing a rather cloudy day. No moisture above 700mb and no instability to speak of. Middle level lapse rates may be enough to produce a few stable showers or maybe some drizzle. Have increased probability of precipitation a bit for some rain showers. For Thursday night precipitation chances increase quite rapidly after midnight as a weather disturbance moves in from the southwest. Current probability of precipitation look good with highest chances generally east of the Colorado/Kansas border. As this system exits the area during the morning Friday we should see a lull until late afternoon when a few thunderstorms are possible across the west or southwest portion of the area as moisture moves in from the southwest. Highs Thursday generally in the 60s with perhaps a few 70s across the far east/northeast. Warmer Friday with middle to upper 70s east...low to middle 80s west. Lows in the 40s Wednesday night...50s Thursday night. Friday night-Tuesday...forecast area to remain in southwest flow aloft as low pressure remains across the west/northwest and high pressure holds across parts of Texas. Will continue with daily chances of showers and thunderstorms as monsoonal type pattern sets up. Highs through the period in the 80s with lows in the 50s and 60s. && Aviation...(for the 18z tafs through 18z Wednesday afternoon) issued at 1101 am MDT Tuesday may 21 2013 VFR conditions will continue at kgld and kmck for the next 24 hours. Gusty wind will slowly decrease by early evening with relatively light wind overnight as the upper low moves into the Mississippi Valley. && Gld watches/warnings/advisories... Kansas...none. Colorado...none. NE...none. && $$ Short term...fs long term...99 aviation...fs