Scientific Forecaster Discussion

NWS Discussion
			
				

Area forecast discussion 
National Weather Service Memphis Tennessee 
1104 PM CDT sun may 19 2013 


Discussion... 


Updated for 06z aviation discussion 


&& 


Previous discussion... /issued 828 PM CDT sun may 19 2013/ 


Update... 


Quiet evening across the midsouth. Skies are mostly clear at the 
present time as an upper ridge remains over the midsouth. 
However...blow off from the convection currently occurring across 
Missouri and northwest Arkansas will spread into areas west of the 
Mississippi River overnight. Do not expect any precipitation as 
line of thunderstorms should die out as they move east into the 
ridge. Will update to go mostly cloudy west of the Mississippi 
River. Will also bump up lows across the west. Update will be out 
shortly. 


Krm 


Discussion... /issued 300 PM CDT sun may 19 2013/ 


Skies are mostly sunny across much of the forecast area this 
afternoon with temperatures in the low to middle 80s. Tonight should 
remain dry and warm as cold front remains well to the west of the 
region. The cold front will only move slowly east during the day 
Monday which keep things dry and very warm with highs in the upper 
80s to around 90 degrees. 


The cold front will inch closer to the region Monday night. Some 
of the thunderstorms that develop ahead of the front may reach 
northwest sections of the forecast area late Monday night or early 
Tuesday morning. By Tuesday the cold front will approach western 
Arkansas with a better chance of thunderstorms for mainly western 
sections of the forecast area. The front will enter northwest 
Arkansas Tuesday night so there will be a better chance of 
thunderstorms. Storm Prediction Center has much of Arkansas in a slight risk for 
severe weather. 


By Wednesday...the cold front will be moving into the forecast area 
with more thunderstorms possible. The 12z European model (ecmwf) models shows the 
cold front will move through the forecast area on Wednesday night 
so the chance of rain should decrease some. By Thursday...the cold 
front stalls out over central Mississippi leaving a small chance 
of thunderstorms over the forecast area for Thursday and Thursday 
night. 


High pressure will start to build into the region on Friday which 
should keep things mainly dry to the upcoming Holiday weekend. 
There will still be a chance of an isolated thunderstorm on Friday 
and again next Sunday but it appears that most areas will not see 
much rain. Temperatures for much of the week from Wednesday 
through next Sunday should remain near normal. 


Ars 


&& 


Aviation... 


06z taf cycle 


VFR conds will prevail overnight. Stratus is developing across the 
lower MS valley and will spread north into the midsouth early 
Monday morning. Stratus will gradually break up with conds 
becoming VFR after 20/16z. South winds at 8-12 kts tonight will 
increase to 10-16 kts Monday morning with higher gusts especially 
at kjbr and kmem. 


Sjm 


&& 


Preliminary point temps/pops... 
mem 74 89 72 86 / 10 10 30 40 
mkl 69 89 70 85 / 10 10 20 30 
jbr 72 87 70 83 / 10 20 40 50 
tup 69 90 69 88 / 10 10 10 30 


&& 


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


$$