Scientific Forecaster Discussion

NWS Discussion
			
				

Area forecast discussion 
National Weather Service Memphis Tennessee 
603 am CDT Friday may 24 2013 


Discussion... /issued 344 am CDT Friday may 24 2013/ 


Today through Sunday... very strong model agreement through 
Saturday provides a high confidence forecast...some disagreement 
for Sunday with the Euro/NAM/can showing the possibility of 
isolated or scattered showers and thunderstorms as compared to the 
GFS and its ensemble mean which is much drier providing a slightly 
lesser level of confidence for Sunday. 


Friday and Saturday will be dominated with dry conditions and 
cooler than normal temperatures with northerly flow from a large surface high 
centered over the Great Lakes. On Sunday a warm front may be near 
the region as warmer and more moist air starts to return to the 
midsouth...this may allow for some isolated to scattered showers 
and thunderstorms...especially for areas north of I-40. Showers 
and thunderstorms aided by a very weak shortwave pushing across 
the region in conjunction with a warm nearby. Temperatures willstart to 
push back towards normal for Sunday with highs in the lower 80s. 
--Abs 


Monday through Friday... 
above average agreement in the medium range models for the 
period...and therefore above average confidence in the forecast. 
All models showing ridging building into the region as the Holiday 
weekend ends and next work week begins. The ridge will be centered 
over the southeast Continental U.S. Allowing for warmer and more moist air to work 
north from the Gulf...with the ridge mainly over the top of the 
area it should cap the environment and have left out any precipitation 
chances...though if the ridge drifts slightly off the southeast coast then a 
few showers and thunderstorms later in the week will be possible 
during the heat of the day. Temperatures will push above normal with many 
upper 80s and maybe even 90 possible from middle week into the end of 
the work week. 
--Abs 


&& 


Aviation... 


12z taf set 


An area of MVFR ceilings remains near the Tennessee River this morning. This 
area could briefly effect ktup for an hour to two as it drifts to 
the southwest. Otherwise...VFR conditions are expected over the next 24 
hours. Gusty NE winds will occur today with speeds between 8-12kts 
with gusts up to 18 kts. Speeds will quickly diminish to less than 
6 kts after 01z. 


Krm 


&& 






&& 


Preliminary point temps/pops... 
mem 75 55 80 61 / 0 0 0 10 
mkl 72 46 79 54 / 0 0 0 10 
jbr 72 51 78 58 / 0 0 0 10 
tup 78 48 80 55 / 0 0 0 10 


&& 


Meg watches/warnings/advisories... 
Arkansas...none. 
MO...none. 
MS...none. 
Tennessee...none. 
&& 


$$