Area Forecast Discussion
Issued by NWS New Orleans/Baton Rouge, LA

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000
FXUS64 KLIX 281326
AFDLIX

Area Forecast Discussion
National Weather Service New Orleans LA
726 AM CST Tue Feb 28 2017

.SOUNDING DISCUSSION...

The 12z sounding has more low level stability than the sounding
at 00z as indicated by a high level of free convection at around
750mb and a weak lapse rate in the lowest 3km of only 5.1C/km.
This is also indicated by a couple of temperature inversions below
700mb. The strongest inversion at 2C is located at 900mb and the
second weaker inversion is noted around 800mb. Low level moisture
trapped beneath the stronger inversion has resulted in some
observed low stratus this morning. Boundary layer winds of 20 to
25 knots are also noted in the sounding this morning. Heading up
to the mid and upper levels of the atmosphere, overall instability
is much greater as noted by lapse rates in excess of 7.0C/km.
These lapse rates have resulted in fairly high CAPE values of 1300
J/KG and lifted indices of -5. However, there is a deep layer of
drier air residing in the mid and upper levels of the atmosphere
which should limit convective potential today. 32

&&

.PRELIMINARY POINT TEMPS/POPS...
MCB  84  66  79  47 /  10  20  60  20
BTR  83  68  81  51 /  10  10  50  20
ASD  83  66  82  53 /  10  10  40  30
MSY  81  68  82  56 /  10  10  30  30
GPT  77  66  78  54 /  10  20  30  40
PQL  79  65  79  52 /  10  10  30  40

&&

.LIX WATCHES/WARNINGS/ADVISORIES...
LA...None.
GM...None.
MS...None.
GM...None.
&&

$$



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