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fxus64 khun 211722 aac 
afdhun 


Area forecast discussion...updated 
National Weather Service Huntsville Alabama 
1225 PM CDT sun Mar 21 2010 


Update...for 18z tafs 
&& 


Aviation...-ra/shra continues across much of the area with ceilings 
hovering near MVFR heights. These conditions should continue through 
the afternoon hours and into the evening period. Surface winds may also 
gust near 20 knots through 00z Monday. Precipitation should then begin to change 
over to a -ra/snow mix or just -sn with ceilings hovering between 2-3k 
feet and visible around 5sm. Precipitation should then begin to taper off after 
14z although MVFR ceilings look to persist through the remainder of 
the forecast period. 
&& 


Discussion...light rain continues to fall across the central and eastern 
portions of the forecast area this morning...with a dry slot moving 
into northwest Alabama. The dry slot though should be short lived with light to 
moderate rain moving eastward across MS. The air mass across the area looks to 
be well capped...with any instability to speak of well elevated. Can 
not rule out a few elevated rouge lightning strikes this afternoon. 
But coverage looks to be too minimal to include in the forecast 
later this afternoon. The upper low however across northern la/southern Arkansas 
still looks to move directly across the central Tennessee Valley later this 
evening with colder air at the surface and aloft in Tow. Will at least 
go ahead and remove thunder from the forecast today. Rest of the 
forecast looks reasonable for now. 
&& 


Hun watches/warnings/advisories... 
Alabama...none. 
Tennessee...none. 
&& 


$$ 


09