Area Forecast Discussion
Issued by NWS Nashville, TN

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
662
FXUS64 KOHX 220246
AFDOHX

Area Forecast Discussion
National Weather Service Nashville TN
946 PM CDT Sat Oct 21 2017

.DISCUSSION...

We`re starting to see the early signs of a weather change this
evening, as we turn our eyes toward the lower Mississippi Valley.
Radar showed some showers near the Mississippi River, snaking up
toward the Memphis area. Higher surface dew points, in the lower
60s were just west of the Tennessee River. Meanwhile, we continued
to enjoy dry weather, and as of this evening were still holding on
to dew points in the 50s.

Expect light winds to hold for much of the night over at least the
western half of our forecast area overnight, which means
temperatures probably won`t fall much more than another 4 to 6
degrees for the rest of the night. Eastern areas, where light
winds will be a bit later picking up, may see a more variable
pattern of low temperatures, with sheltered valleys seeing lows in
the middle and upper 40s, ranging to the lower and middle 50s
where a 2 to 3 kt wind kicks in.

Adjusted overnight grids to reflect most recent trends. However,
the overall change, especially regarding min temps, was quite
slight.

&&

.AVIATION...
00Z TAF DISCUSSION.

BNA/MQY/CKV/CSV...Winds are increasing ahead of an approaching
cold front. There appears to be enough warm advection underway to
keep dew points spreads sufficiently large to prevent radiation
fog overnight. Ceilings will deteriorate late tomorrow afternoon
at CKV as low-level moisture becomes more abundant, with light
showers possible before 00Z Monday. Low ceilings and precipitation
will likely hold off until after 00Z at the remaining 3
terminals.


&&

.PRELIMINARY POINT TEMPS/POPS...
Nashville      62  80  62  67  50 /  10  20  90  80  20
Clarksville    62  77  57  65  47 /  10  40  80  70  20
Crossville     54  73  59  65  46 /   0  10  80  90  30
Columbia       61  78  59  67  47 /  10  30  90  70  20
Lawrenceburg   60  78  60  67  48 /   0  20  90  80  20
Waverly        63  76  57  65  47 /  10  60  80  60  20

&&

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

&&

$$

DISCUSSION......19
AVIATION........08



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