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fxus64 kshv 180249 aaa 
afdshv 


Area forecast discussion...updated 
National Weather Service Shreveport la 
949 PM CDT Wednesday Mar 17 2010 


Discussion... 
have made a few changes to the forecast this evening. Water vapor 
imagery shows a shortwave dipping southeast through the four state 
region this evening. Radar imagery as a result has been showing 
light returns over the eastern couple of parishes. Overall am not 
expecting much of this to reach the ground. Have updated pop and 
weather grids to reduce the slight chance area to the southeastern 
corner of the County warning forecast area. Have also just mentioned sprinkles as it will 
be rather hard for much rain...if any...to reach the ground 
given rather dry conditions. The small chances for sprinkles 
should end by midnight. 


Have made a few adjustments to temperatures as well. Temperatures 
especially over the northwestern corner of the four state region 
have been cooling a bit more quickly than expected. Have adjusted 
low temperatures down over this area as a result. Hourly 
temperatures have been adjusted accordingly based on these 
changes. 


Otherwise the forecast is in decent shape and any other changes 
were minor and based on observational trends. Updated products 
will be sent and posted to the web shortly. /22/ 


&& 


Aviation... 
VFR conditions are expected to prevail throughout most of the forecast 
period. Scattered to broken middle deck across la/Arkansas terminals will give 
way to mostly clear skies after 18/06z...as upper disturbance 
finally pushes off of the Gulf Coast. With a dry airmass over 
the region...any br formation tonight and early Thursday will be 
limited to low lying areas...and should be shallow. Some high cumulus may 
develop as daytime heating commences Thursday. However...clouds 
should remain confined to la/Arkansas terminals...as high pressure 
maintains its hold over most of Texas. Winds will remain out of the northwest 
at 4-8 kts through the period. /12/ 


&& 


Preliminary point temps/pops... 
shv 42 66 48 75 55 / 10 0 0 0 10 
mlu 43 65 49 75 54 / 20 0 0 0 10 
deq 38 65 44 74 50 / 10 0 0 0 20 
txk 40 64 46 74 52 / 10 0 0 0 20 
eld 40 64 47 74 52 / 10 0 0 0 10 
tyr 41 65 45 75 52 / 10 0 0 0 10 
ggg 40 65 46 76 54 / 10 0 0 0 10 
lfk 40 67 47 74 55 / 10 0 0 0 10 


&& 


Shv watches/warnings/advisories... 
Arkansas...none. 
La...none. 
OK...none. 
Texas...none. 
&& 


$$ 


22/12