Marine Weather and Tides
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
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|Sunrise 7:01AM||Sunset 8:30PM||Wednesday August 21, 2019 8:13 PM EDT (00:13 UTC)||Moonrise 10:51PM||Moonset 11:33AM||Illumination 62%|
7 Day Forecast for Marine Location Near Shepherdsville, KYHourly EDIT Help
Area Discussion for - Louisville, KY  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus63 klmk 212332|
area forecast discussion
national weather service louisville ky
732 pm edt Wed aug 21 2019
Updated aviation discussion...
Short term (this evening through Thursday)
updated at 310 pm edt Wed aug 21 2019
A few strong storms possible this evening...
hot and humid air mass remains in place across most of the ohio
valley, with a weakening convective complex spreading across central
and northern illinois. Fairly strong mid-level inversion is limiting
any convection overhead to a few flat cu, but we are starting to see
storms develop over southern illinois and southeast missouri on the
differential heating boundary at the edge of the anvil.
We'll see the cap continue to erode into this evening, allowing for
isolated to scattered storms to develop and affect mainly the areas
west of interstate 65. Environment remains weakly sheared, but there
is fairly strong instability once the cap is broken, so we could see
strong enough updrafts to support a marginal pulse severe threat.
Precip chances will continue through the night, but as daytime
instability is lost the storm intensity will decrease. By Thursday a
slow-moving cold front will move into the area and get hung up as it
becomes parallel to the upper flow. Could see repeated rounds of
storms through the day, with heavy rainfall and localized flooding
as the main hazards. There will be just enough shear to support a
few more organized clusters, but otherwise the severe threat is
Long term (Thursday night through Wednesday)
updated at 252 pm edt Wed aug 21 2019
unsettled weather will continue Thursday night into Friday as a cold
front slowly pushes southward. Models vary on how quick and how far
south the front will drop, which will impact the precipitation
forecast for the weekend. Additionally, a few models show a weak
shortwave lifting from the tn valley into the lower ohio valley late
Sunday into early Monday, sparking additional chances for showers|
and storms. Don't think any one location will see prolonged rain for
the weekend, but certainly looks possible that a good portion of the
area will have a couple of chances to see some measurable rain.
The early to midweek forecast continues to look unsettled as the
previous cold front lifts northward as a warm front. An area of low
pressure will eject off of the plains and move into the midwest with
a trailing cold front. The gfs ECMWF cmc vary on how things evolve
into our region, with the cmc stalling the front out just before it
reaches us, while the gfs ECMWF push it through either Tuesday or
Wednesday. Best course of action at this point is to use a model
blend of solutions and maintain some pops into the extended.
Aviation (00z TAF issuance)
updated at 730 pm edt Wed aug 21 2019
a shower or storm is possible near bwg this evening in an unstable
airmass with convection nearby as of 2330z. The rest of the taf
sites should stay dry this evening.
Later tonight a front will lay out across the ohio valley, and low-
level jetting should create a convective complex progged to move
through the area during the pre-dawn hours. Will mention with -shra
and vcts for now. VFR-MVFR conditions will be possible in this late
night round of storms but have remained optimistic with this taf
With the front over the area for Thursday, expect another round of
convection mainly during the afternoon hours.
Winds will generally remain w-sw throughout the TAF period reaching
6-8 kts Thu afternoon.
Lmk watches warnings advisories
Short term... Ras
long term... Dm
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.
|Louisville, Standiford Field, KY||13 mi||77 min||W 8||10.00 mi||Mostly Cloudy||89°F||71°F||55%||1013.4 hPa|
|Fort Knox, KY||16 mi||2.3 hrs||WSW 5||10.00 mi||Overcast||87°F||70°F||59%||1015.2 hPa|
|Louisville, Bowman Field Airport, KY||16 mi||20 min||W 5||10.00 mi||A Few Clouds||86°F||71°F||61%||1013.3 hPa|
Link to 5 minute data for KSDF
Wind History from SDF (wind in knots)
|1 day ago||W||W||W||Calm||SE||W||Calm||SE||Calm||S||SW||SW||SW|
|2 days ago||SW||SW||W||NE||N||Calm||Calm||S||SW||W||W||W|
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Wind Forecast for Louisville, KY (20,4,5,8)(on/off)  Help
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