Friday, August7, 2020
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Marine Weather and Tides
Farnam, NE

Version 3.4 		NOTICE
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 6:43AMSunset 8:53PM Friday August 7, 2020 8:09 AM CDT (13:09 UTC) Moonrise 10:15PMMoonset 9:32AM Illumination 87% Phase: Waning Gibbous; Moon at 18 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
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7 Day Forecast for Marine Location Near Farnam, NE
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location: 40.77, -100.3     debug

Area Discussion for - North Platte, NE
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FXUS63 KLBF 071128 AAA AFDLBF

Area Forecast Discussion . UPDATED National Weather Service North Platte NE 628 AM CDT Fri Aug 7 2020

SHORT TERM. (Today through Saturday) Issued at 355 AM CDT Fri Aug 7 2020

This morning there is a possibility for patchy fog in low lying areas in southwest and north central Nebraska. Current observations show dew point depressions of less than 5 degrees in those areas. However, gusty winds early this morning may lead to sufficient mixing to hinder fog formation.

Today and tonight will see a break from thunderstorm activity in western and north central Nebraska. The upper level ridge axis will continue to move east, becoming centered over the Mississippi River by Friday evening. An upper level disturbance will move east across this pattern and cross over Nebraska in the afternoon and evening. However, as 850 mb temperatures reach over 30 degrees celsius, a temperature inversion will form throughout the day between 850 mb and 700 mb. This cap will be the primary inhibiting factor for thunderstorm development today. With the lack of any storm development, skies should remain mostly clear in the afternoon and surface temperatures will reach the upper 90s in the eastern panhandle.

Saturday is more promising for thunderstorm activity. An upper level disturbance will move east off of the Rockies into Nebraska starting Saturday afternoon. At the surface, a cold front extends from South Dakota into Nebraska and slowly moves east. This front will be the focal point of thunderstorm development. Southeasterly surface flow associated with a low pressure system will bring ample surface moisture into the area. SBCAPE values of over 3500 J/kg will also move in from the southeast, more than adequate for storm development. Surface to 6 km shear of over 30 knots and consistent warm air advection from the surface to 8 km are also supportive of storm development. As this moist and unstable air reaches the cold front, there will be ample lift to trigger a line of thunderstorms in the evening. A low level jet is expected to develop Saturday evening, which will help sustain storm development late into the overnight hours. Areas most likely to be impacted by these storms are north central and southwest Nebraska, as the airmass reaches the front in that area in the early evening. Given the strong shear, large hail and strong outflow winds are likely with these storms.

LONG TERM. (Saturday night through Thursday) Issued at 355 AM CDT Fri Aug 7 2020

Upper level flow will become zonal after Saturday, with weak disturbances moving along the pattern through the week. While POPs will be low, thunderstorms cannot be ruled out during the afternoon from Sunday through Thursday due to these disturbances. After the passage of the cold front on Sunday, high temperatures on Monday will be in the low 80s across the area. Highs will gradually climb back into the low 90s through the rest of the forecast period, peaking on Wednesday and Thursday with the passage of a warm front. Dew points will reach their lowest point on Monday, dropping into the upper 40s to low 50s for portions of western Nebraska and the Sandhills. After Monday they will slowly climb back into the upper 50s to low 60s.

AVIATION. (For the 12Z TAFS through 12Z Saturday morning) Issued at 628 AM CDT Fri Aug 7 2020

The area of IFR/local LIFR ceilings across parts of swrn and ncntl Nebraska is expected to mix out to VFR fairly rapidly this morning with widespread VFR by 17z. There is a chance these low ceilings will return 10z-12z Saturday morning, generally affecting ncntl Nebraska.

There is also a slight chance, less than 15 percent, that isolated thunderstorms will form late this afternoon or this evening across nrn Nebraska. Otherwise, VFR is expected across wrn and ncntl Nebraska today and tonight.

LBF WATCHES/WARNINGS/ADVISORIES. None.

SHORT TERM . Meltzer/Stoppkotte LONG TERM . Meltzer/Stoppkotte AVIATION . CDC

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lexington, Jim Kelly Field Airport, NE28 mi75 minSE 85.00 miFog/Mist71°F69°F94%1012.5 hPa

Link to 5 minute data for KLXN

Wind History from LXN (wind in knots)
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Last 24hrCalmCalmE3S5S8SE9
G14		S8S9S10S10SE15SE10SE9SE7SE11
G14		SE10S5S7S10S10S9SE13S8SE8
1 day agoS7S8SW14SW8CalmE3S6S6SE9S9S6SE6SE6SE6E6E9SE10SE5E7CalmCalmCalmS7Calm
2 days agoSE8----------S16
G19		S12
G15		SE10S13SE11
G15		SE10SE11S12SE10SE8S4SE6S5S5SE4SE6S5SE4
Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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wmap_P
GEOS Local Image of    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for North Platte, NE (9,2,3,4)
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Ground Weather Radar Station North Platte, NE
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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.