Saturday, December14, 2019
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Marine Weather and Tides
Princeton, TX

Version 3.4
NOTICE
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.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:20AMSunset 5:21PM Saturday December 14, 2019 6:33 AM CST (12:33 UTC) Moonrise 7:57PMMoonset 9:37AM Illumination 92% Phase: Waning Gibbous; Moon at 17 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 Princeton, TX
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location: 33.15, -96.49     debug


Area Discussion for - Fort Worth, TX
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FXUS64 KFWD 141132 AFDFWD

Area Forecast Discussion National Weather Service Fort Worth TX 532 AM CST Sat Dec 14 2019

AVIATION. /12z TAFs/

The main concern through this TAF cycle is the potential for visibility reductions, both this morning and again Sunday morning.

Patchy mist/fog has developed due to clear skies and light winds, and is occasionally reducing visibility at TAF sites to as low as 3-4SM. However, these conditions should be relatively short-lived as light winds become more northwesterly, allowing slightly drier near-surface air to filter into the area. Have maintained Tempo groups for MVFR visibility for a couple more hours. Later this morning, winds will gradually return to the east and southeast while remaining less than 10 kts.

The return of southeasterly flow will usher in a warm front Sunday morning, with ample low-level moisture spreading into a cool airmass already in place. This should result in fairly widespread fog, some of which may be dense. Have introduced reduced visibility at all TAF sites for Sunday morning beginning around 09-10z, but my current advertisement of 4SM is probably too optimistic. Visibility of a mile or less seems likely for at least a couple hours at most TAF sites. This will need to be monitored for upcoming TAF issuances.

-Stalley

SHORT TERM. /Issued 258 AM CST Sat Dec 14 2019/ /Through Tonight/

A weak cold front was draped from roughly Tulsa to Wichita Falls as of 3 AM, and has been making slow southward progress into North Texas. Just ahead of the boundary, calm winds and clear skies have allowed temperatures to approach dewpoints, resulting in the development of patchy radiation fog. Moderate northerly 925mb flow along with the eventual arrival of slightly drier post-frontal air should prevent much in the way of dense fog from being able to develop this morning, but we'll have to keep an eye on the potential necessity of any fog headlines through daybreak across the eastern half of the forecast area. Other than acting to clear the visibility reductions, the cold front will mostly go unnoticed from a sensible weather standpoint.

Otherwise, it's shaping up to be a pleasant Saturday with highs mostly in the 60s or low 70s. A small increase in cirrus can be expected across North Texas, but otherwise skies will remain relatively clear. Later tonight, low-level flow will quickly turn around to the southeast following this morning's front, and a warm frontal feature will move northward early Sunday morning. This will be favorable for advection fog to develop as higher dewpoints encounter the cool temperatures that will be in place. This fog could be rather widespread, and some may be dense as well. Areas of fog have been introduced to the forecast for tomorrow morning, and will be refined with subsequent forecasts.

-Stalley

LONG TERM. /Issued 258 AM CST Sat Dec 14 2019/ /Sunday through Next Weekend/

A warm air advection regime will be ongoing at the start of the period ahead of an approaching shortwave trough and surface frontal system. Areas of fog and perhaps drizzle will be a good possibility as higher dewpoints enter from the south and overspread a chilly airmass, primarily south of the Interstate 20 corridor. Winds will be out of the south for most of the area during the day, but veering winds will become likely across the western counties as the front approaches from the northwest. Downslope flow will result in well-above normal temperatures along and west of I-35/south of I-20, where highs may top at or above 80 degrees. The high temperature forecast becomes a bit more tricky for counties along the Red River, because it is possible that the front creeps into the area during the mid to late afternoon hours, which would hold temperature's in the 50s. Chances are, however, that readings will climb into the lower 60s across the north prior to the arrival of the frontal boundary.

The trough will deepen while dropping southeast into Northwest Texas Monday night, with the front subsequently surging south through the region. Despite the warm/moist advection ahead of the system, this pattern will have been short-lived and moisture return minimal. Scattered showers will become possible along the front, but likely will not develop until the boundary is over the southeastern half of the forecast area. Similar POPs to the previous forecasts will be used for this forecast package, if not slightly lower, with the best rain chances along a Paris-Palestine line and areas east.

A seasonably cold airmass will engulf the entire area as the front heads for the Mississippi Valley and Gulf of Mexico on Monday. High temperatures in the 40s and 50s can be expected Monday and Tuesday with sub-freezing conditions occurring during the overnight hours. The coldest night still looks to be Tuesday night when ideal radiative cooling conditions will develop, and the current forecast will indicate readings dropping mainly into the 25 to 30 degree range by daybreak Wednesday.

A slight warming trend will begin during the day Wednesday as return flow begins in advance of the next upper level trough and surface front. This system is progged to pass eastward through the Southern Plains late Thursday or Friday. Good ascent will accompany the trough, but moisture will once again be the mitigating factor regarding precipitation potential. Low-end rain chances will continue for areas along and east of I-35 Thursday night through Friday night. Dry conditions and above-normal temperatures then look likely as upper level ridging builds overhead next weekend.

30

PRELIMINARY POINT TEMPS/POPS. Dallas-Ft. Worth 64 47 74 42 51 / 0 0 0 5 5 Waco 69 47 80 47 56 / 0 0 0 10 10 Paris 60 42 67 44 50 / 0 0 0 30 20 Denton 62 42 70 38 48 / 0 0 0 5 5 McKinney 61 42 71 41 50 / 0 0 0 10 10 Dallas 64 48 74 43 52 / 0 0 0 5 10 Terrell 64 45 75 45 53 / 0 0 0 10 20 Corsicana 68 48 77 49 55 / 0 0 0 20 20 Temple 71 48 79 49 57 / 0 0 0 10 10 Mineral Wells 64 42 75 37 49 / 0 0 0 0 0

FWD WATCHES/WARNINGS/ADVISORIES. None.

26/30


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
McKinney - McKinney National Airport, TX6 mi40 minN 05.00 miFog/Mist33°F30°F92%1012.8 hPa
Dallas / Addison Airport, TX22 mi3 hrsW 37.00 miFair42°F40°F93%1012.2 hPa
Greenville / Majors, TX23 mi63 minN 04.00 miFog/Mist37°F37°F100%1011.5 hPa

Link to 5 minute data for KTKI

Wind History from TKI (wind in knots)
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Last 24hrS3CalmCalmCalmN4N33NW7NE7N7N4N4N4S3CalmN4CalmW3N5CalmCalmCalmCalmCalm
1 day agoSE6SE6SE7SE9S8S10S11S10SE12S12S8S6SE6SE3CalmE3SE3SE4CalmSE3SE4CalmS5S5
2 days agoCalmS5S6S7S7SE8SE9SE9SE8S7S6S5S5SE5SE5CalmS3SE4SE4CalmSE4SE5SE4E3

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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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 Fort Worth, TX (7,2,3,4)
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Ground Weather Radar Station Dallas/Fort Worth, TX
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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 numerious 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.