Area Forecast Discussion
Issued by NWS Nashville, TN

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FXUS64 KOHX 221956
AFDOHX

Area Forecast Discussion
National Weather Service Nashville TN
256 PM CDT Mon May 22 2017

.DISCUSSION...

Nice weather day today with mostly sunny skies and temperatures in
the lower to middle 70s across Middle TN. Dew points range from
the middle 40s to middle 50s.

Have rain chances increasing from the southeast tonight and
tomorrow as a broad short range vort max rotates around the low
that drops out of the great lakes. The instability indicies don/t
seem all that impressive so will go with predominately rain with a
slight chance of thunder tomorrow night and Wednesday. Highest
rain chance will be late tomorrow night and Wednesday morning.

The great lakes low drops down into Western TN by 06Z Thursday and
models disagree a bit on the movement of the low on Thursday. For
now will continue with the forecast of rain chance ending west to
east on Thursday and a weak ridge building in on Friday.

Dirty zonal flow can be expected for the Memorial Day weekend
with a chance of showers and thunderstorms Saturday through
Monday.

Temperatures will be around normal for the forecast period. The
coolest day will be Wednesday with the showers...ranging from
upper 60s in Clarksville to lower 70s elsewhere. Generally around
the lower to mid 80s heading into the holiday weekend.

&&

.AVIATION...
18Z TAF DISCUSSION.

High pressure moving across Kentucky will bring a light steady
northeasterly flow to the mid-state through this evening. A low
pressure system over Louisiana is expected to track to the
northeast overnight bringing rain shower chances to the plateau
region late. Have included VCSH at BNA with no VIS or CIG
reduction, but CSV may see MVFR VIS and CIGs after 12Z, depending
on how far north the low pressure system tracks. GFS and NAM
slightly differ with this, so will revisit with 00Z TAF issuance.


&&

.PRELIMINARY POINT TEMPS/POPS...
Nashville      58  76  59  71  53 /  10  20  70  50  20
Clarksville    54  76  56  68  51 /  10  20  80  50  20
Crossville     56  71  54  67  50 /  20  50  70  60  30
Columbia       57  75  57  69  52 /  10  20  70  50  20
Lawrenceburg   58  75  58  69  52 /  30  30  70  50  20
Waverly        56  76  56  67  52 /  10  20  80  50  20

&&

.OHX WATCHES/WARNINGS/ADVISORIES...
NONE.

&&

$$

DISCUSSION......12
AVIATION........05



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.