Tuesday, May11, 2021
Privacy Policy
L-36.com

Marine Weather and Tides
Shepherdsville, KY

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:33AMSunset 8:44PM Tuesday May 11, 2021 6:06 AM EDT (10:06 UTC) Moonrise 5:39AMMoonset 7:47PM Illumination 0% Phase: New Moon; Moon at 29 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
    EDIT      (on/off)   Help


7 Day Forecast for Marine Location Near Shepherdsville, KY
   Hourly   EDIT   Help
location: 38, -85.7     debug


Area Discussion for - Louisville, KY
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS63 KLMK 110652 AFDLMK

Area Forecast Discussion National Weather Service Louisville KY 252 AM EDT Tue May 11 2021

Short Term. (Today and tonight) Issued at 234 AM EDT Mon May 10 2021

Surface analysis early this morning reveals broad Canadian high over southern Manitoba and Ontario. Light northerly surface flow across our region is being influenced by this high pressure, which will gradually sink southward over the upper Midwest later today.

Quiet weather can be expected in the short term period. Our region will generally be under strong quasi-zonal flow aloft, with most systems either passing by to our north or south. Clouds will increase this afternoon ahead of these systems, though it appears we should remain dry through the daylight hours. Right around and shortly after 00z, there may be enough moisture to saturate the low levels that we see some light rain develop across southern KY, though the bulk of the moisture stays south of the KY border where the better moisture/lift co-exist.

Depending on how quickly clouds push out of the region tonight, there could be a window for frost development early tomorrow morning across southern IN and northern KY. Confidence at this time isn't high enough to go with a frost advisory, but it is worth watching since low temperatures will likely get into the upper 30s if we clear out for even a few hours before dawn.

Long Term. (Wednesday through Monday) Issued at 230 AM EDT Tue May 11 2021

Long term period begins with a strong Canadian high pressure system located over the Great Lakes region. Unseasonably cool temperatures will continue to dominate the forecast. Despite plenty of sunshine on Wednesday, cool NE flow with some 15-20 mph wind gusts in response to a tightened pressure gradient will help the CAA regime keep a tight grip on our regional temps. Wed max temps are expected to remain in the low to mid 60s, a respectable 10-15 degrees cooler than climo for this time of year.

For Thursday, a few more clouds will infiltrate the region as an upper level low over northern IL and a mid level shortwave works into the Ohio Valley. Models continue to trend slightly more dry for Thursday, with only the 00z GFS including some slight PoPs in our extreme SE CWA (Lake Cumberland region). NBM is a bit more generous with PoPs, expanding slight chances primarily in a region east of I- 65 and south of I-71. Main limiting factor at play is that there is not much moisture or forcing to work with. While operational guidance lacks QPF, ensembles do show some signals for at least a trace, maybe some very light measurable precip in our SE CWA. Also worth noting is that WPC QPF guidance does not have any measurable precip in our CWA. With all this in mind, will keep just a slight chance (15-20% PoP) for our extreme south and east portions. Regardless of the precip, Thursday will be another day of well-below normal temps, with highs expected to top out in the mid 60s.

High pressure will once again influence the region for Friday and the first half of Saturday, leading to dry wx and temps rebounding close to normal. Expect temps to top out in the upper 60s (urban spots should hit 70) for Friday, and low 70s for Saturday. Models diverge by Saturday evening with precip chances, but the general consensus is that we will see increased precip chances for Saturday night into Sunday and Monday.

Aviation. (06Z TAF Issuance) Issued at 118 AM EDT Tue May 11 2021

VFR conditions expected for forecast period. Mid to high level clouds are just beginning to push east of the region and should set up for mostly clear skies this morning. Another wave of mid to high level clouds will push in from the west tomorrow afternoon. Appears we will have enough dry air in the lowest levels of the atmosphere to keep the forecast dry at this time, though the BWG terminal could be on the edge of light showers toward the end of the forecast period.

LMK WATCHES/WARNINGS/ADVISORIES. IN . None. KY . None.

Short Term . DM Long Term . CJP Aviation . DM


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Louisville Muhammad Ali International Airport, KY13 mi70 minN 510.00 miFair50°F42°F74%1021.2 hPa
Fort Knox, KY16 mi70 minN 010.00 miFair42°F41°F99%1021.3 hPa
Louisville, Bowman Field Airport, KY16 mi73 minN 010.00 miFair45°F40°F83%1021.4 hPa

Link to 5 minute data for KSDF

Wind History from SDF (wind in knots)
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
Last 24hrN4N6N6NE84NE9NE11
G17
NE12
G19
NE13
G19
N10N9
G15
SE3SE4N8E4E4E6E6N8N5NW4CalmN3N5
1 day agoSE10SE12S13
G26
S14
G26
S17
G30
SW14
G27
S18
G27
S28
G45
S21
G30
S22
G30
SW14
G25
W13
G21
NW19
G31
NW14
G25
N18
G22
N18
G22
N16
G25
N9N10NE13
G19
N7NE7N8NE9
2 days agoN7N5N8N7N7NE5Calm4Calm5CalmCalmSW6SW8SE3SE5E5E6E5SE5E6E5E6SE10

Tide / Current Tables for
   EDIT   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map
       (on/off)   Help Weather Map
wmap_A
GEOS Local Image of    EDIT
NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
Link to Loop

Other links: GEOS-West     Contential US     Full GOES-East
Ground Weather Radar Station




Please read website Cookie, Privacy, and Disclamers by clicking HERE.