Marine Weather and Tides
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
|Sunrise 8:02AM||Sunset 6:50PM||Tuesday October 27, 2020 10:34 AM EDT (14:34 UTC)||Moonrise 4:26PM||Moonset 3:10AM||Illumination 82%|
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 271351 AFDLMK
Area Forecast Discussion National Weather Service Louisville KY 951 AM EDT Tue Oct 27 2020
Forecast Update. Issued at 949 AM EDT Tue Oct 27 2020
Current radar continues to show a SW-NE oriented band of light rain and drizzle roughly over the OH River, which is expected to slowly dissipate by mid afternoon. Accumulations have been light for the most part with HNB reporting a 24 hour total of 0.12" and hardly any measurable amounts in central KY according to KY Mesonet. Current temperatures across the region are on track, and sounding data continues to suggest a breaking up of clouds in the Lake Cumberland area that will result in much warmer temperatures in the low to mid 60s compared to highs in the low to mid 50s across southern Indiana and north central KY. Overall, previous forecast remains on track. Only slight updates made to near term grids, so no updated products will be needed at this time.
Short Term. (Today and tonight) Issued at 312 AM EDT Tue Oct 27 2020
An area of light rain from northeast Oklahoma to southern Missouri during the pre-dawn hours will slide northeast into southern Indiana and north central Kentucky this morning, potentially dropping around a tenth of an inch of rain. This afternoon looks drier as forcing weakens, though there will continue to be some weak isentropic upglide coincident with high RH resulting in stubborn cloudiness and perhaps a few sprinkles over southern Indiana and north central Kentucky. Over southern Kentucky dry mid level air is expected to push northward from the Tennessee Valley and may actually enable some peeks of sunshine. High temperatures will vary greatly from around 50 with clouds and rain in southern Indiana . to middle or upper 60s in the Lake Cumberland region with drier weather and possibly some afternoon sun.
Tonight the dry mid-level air will continue to push northward but low level moisture will remain in place with widespread cloudiness. Some patchy drizzle not out of the question in southern Indiana and northwest Kentucky generally west of I-65 in region of lowest cloud bases.
Long Term. (Wednesday through Monday) Issued at 330 AM EDT Tue Oct 27 2020
The focus for the start of the period remains how much rain we could receive Wed through Thu as several weather features come together and interact with one another. Deep cutoff low across NM/TX will slowly eject eastward lifting a surface warm front and deep tropical moisture northward across the OH/TN Valleys which will interact with a baroclinic zone across the region. All of this as Zeta makes landfall across the Gulf Coast of LA/MS Wednesday night and then lifts quickly northward along/east of the Appalachians. While we're less concerned about the actual tropical system, moisture ahead and north of Zeta could bring precipitation totals of 2 to 3 inches across the region with some local areas approaching 3.5 to possibly 4 inches, especially our counties across southern Indiana and along the Ohio River.
Rain will spread in across the CWA Wednesday afternoon from the south and push northward. Most widespread and heaviest of the precipitation is anticipated to be Wednesday night into Thursday thanks to a developing deformation band. As mentioned in the previous discussion, some bust potential continues, especially over south-central KY, as a dry slot associated with the upper low could cut into rain amounts.
Drying will take place during the day on Friday as the cut off low is absorbed into the main flow across the Mid-Atlantic and a 1031mb surface high settles in over the Ohio Valley by Saturday morning. Colder air behind the departing system and clearing skies sets the stage for possible frost Saturday morning.
November starts with a cooler than normal pattern as a trough develops over the eastern US. A reinforcing cold front pushes through on Sunday but moisture is limited so continue to keep the period dry. Highs over the Halloween weekend will be in the upper 50s to near 60 with Monday high temperatures cooler in the low to middle 50s.
Aviation. (12Z TAF Issuance) Issued at 643 AM EDT Tue Oct 27 2020
A corridor of low clouds is expected to persist from Texas to the Ohio Valley today, likely keeping HNB IFR for much of the daylight hours. A hole in the low clouds opened up INVOF SDF, but that is expected to close early in the new TAF period. An area of light rain over the Ozarks during the pre-dawn hours will slide up the Ohio Valley after sunrise, bringing light rain to HNB and possibly SDF.
This afternoon and evening we lose some upper support and vertical motion weakens, leading to drier weather and a possible slight lifting of ceilings but likely still prevailing below VFR.
The well advertised heavy rain event for Wednesday-Thursday should commence just beyond this TAF period.
LMK WATCHES/WARNINGS/ADVISORIES. IN . None. KY . None.
Update . CG Short Term . 13 Long Term . BTN Aviation . 13
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|Louisville Muhammad Ali International Airport, KY||13 mi||39 min||N 6||5.00 mi||Light Rain Fog/Mist||50°F||46°F||89%||1024.8 hPa|
|Fort Knox, KY||16 mi||39 min||N 3||10.00 mi||Overcast||49°F||47°F||96%||1024.9 hPa|
|Louisville, Bowman Field Airport, KY||16 mi||42 min||N 5||6.00 mi||Overcast with Haze||50°F||45°F||83%||1024.9 hPa|
Link to 5 minute data for KSDF
Wind History from SDF (wind in knots)
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|2 days ago||N||N||N||E||E||NE||E||NE||NE||NE||E||NE||E||E||NE||NE||E||NE||NE||NE||N||N||NE |
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