Area Forecast Discussion
Issued by NWS Louisville, KY

Home | Current Version | Previous Version | Graphics & Text | 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
FXUS63 KLMK 181652

Area Forecast Discussion
National Weather Service Louisville KY
1152 AM EST Thu Jan 18 2018

...Updated Aviation Discussion...

.Short Term...(Today through Friday)
Issued at 250 AM EST Thu Jan 18 2018

Departing upper low promises mostly sunny skies for us today, and
with surface high pressure to our south, we will see a stronger
southerly flow set up as well. Both argue for a warming trend
starting today. We should see highs to near the freezing mark today
and lows tonight10-15 degrees warmer than this morning. The
warming will continue for Friday, as a shortwave ridge moves into
the Midwest, allowing our temperatures to get to near 40 for highs.

.Long Term...(Friday night through Wednesday)
Issued at 250 AM EST Thu Jan 18 2018

For Saturday, a weak upper low will cross the Deep South,
undercutting our shortwave ridge over the Midwest. A few models hint
at some light precip in a deformation band north of this upper low.
Clouds associated with this feature could temper our warmup a bit,
but we are still looking at 40s for highs. Then by Sunday, we look
to be solidly within the warm sector of our next storm system. Highs
should reach well into the 50s.

Timing for a frontal passage and associated solid rain chances still
looks to be focused on Monday. For this system, we look to have some
pretty impressive wind fields above the surface. However, as usually
is the case this time of year with these systems, instability is the
big question on whether we see any of those winds mix down. Once
that front clears the region, we`ll drop down closer to normal for
highs/lows through midweek.


.Aviation...(18Z TAF Issuance)
Issued at 1151 AM EST Thu Jan 18 2018

VFR conditions to prevail across all TAF sites with clear skies and
high pressure. Southwest winds will pick up to around 12-15 kts this
afternoon then diminish after sunset. Similar conditions are
expected for tomorrow.




Short Term...RJS
Long Term...RJS
Aviation...ZT is the U.S. government's official web portal to all federal, state and local government web resources and services.