Tuesday, August20, 2019 L-36.com

Marine Weather and Tides
Waco, TX

Version 3.4
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 6:55AMSunset 8:08PM Tuesday August 20, 2019 9:33 PM CDT (02:33 UTC) Moonrise 10:14PMMoonset 10:20AM Illumination 71% Phase: Waning Gibbous; Moon at 20 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 Waco, TX
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location: 31.56, -97.19     debug

Area Discussion for - Fort Worth, TX
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Fxus64 kfwd 202321
area forecast discussion
national weather service fort worth tx
621 pm cdt Tue aug 20 2019

00z tafs
there are little operational concerns with this evening's taf
package. The only forecast challenge is the development of gulf
stratus across central texas creeping into the kact terminal in
the early morning hours. There is a 20% chance of MVFR ceilings
moving over the terminal between 12-15z, however, the current
thinking is the ceilings should remain south west of kact.

Otherwise, a typical diurnal wind cycle is expected with south-
southeast winds in the afternoon and south-southwest winds
developing near sunrise.


Short term issued 238 pm cdt Tue aug 20 2019
through tonight
hot and humid conditions persist across central and north texas
this afternoon. Many locations are experiencing heat index values
between 105 degrees and 108 degrees. The heat advisory will remain
in effect until 7pm this evening. Outside of the heat, an area of
showers and thunderstorms is occurring across southeast texas
this afternoon. Some of this activity may sneak into our east and
southeast through 00z and will keep a 20 pop for these locations.

If thunderstorms do develop, then moderate heavy downpours, brief
gusty winds, and cloud to ground lightning will be the main
threats. Convection should diminish later this evening with the
loss daytime heating. Otherwise, warm and muggy conditions will
continue tonight. Overnight lows will be in the middle to upper
70s across much of the area with low 80s in the metroplex.


Long term issued 238 pm cdt Tue aug 20 2019
Wednesday onward
the stout upper-level ridge responsible for hot and rain-free
weather looks to stick around for another couple of days, leading
to more of the same through Thursday. Highs each day will be near
100 f (give or take a few degrees, depending on where you are located
in our county warning area). Maximum heat index values will be a
bit marginal tomorrow in terms of heat advisory criteria, but
seeing as an advisory is already out through Wednesday, might as
well let it ride since (1) it will be close enough, and (2) even
if we are not explicitly at above criteria, it will be plenty hot.

The night shift may opt to drop the heat advisory, but
regardless, all the usual precautions to avoid heat-related
illness will need to be taken.

Late this week and into the weekend, the upper-level ridge may
loosen its grip on north and central texas a bit as the ridge
shifts to the west. The reduced subsidence may allow for some
diurnally-driven showers and thunderstorms to develop each day
Friday through Sunday, mainly over our southern and eastern
counties where the subsidence will be the weakest, and moisture
will be the highest. There could be some additional enhancement to
shower and thunderstorm chances as some weak, transient upper-
level shortwave troughs propagate across oklahoma and kansas.

Right now, it does not look like we are looking at much in the way
of widespread, wetting rains, but there appears to be enough there
to justify at least slight chance to chance pops for portions of
the county warning area through the weekend. Some people will see
perhaps a few tenths of an inch of rain. A few lucky individuals
may pick up a half-inch or more. But for most of us, we will stay
hot and dry, longing for the relief of a late-summer downpour.

The upper-level pattern with the ridge centered over the desert
southwest looks to continue into next week, with perhaps an
increase in tropical moisture towards the middle of the week.

There has been little run-to-run consistency regarding
precipitation coverage during this time period, so kept pops in
the slight chance to chance range areawide.

As for your extended outlook, some members of the GFS ensemble
forecast system (gefs) continue to hint at some sort of cold front
towards the end of next week (august 30 - september 1). Details
are obviously very uncertain right now, but this signal has
appeared in several consecutive runs of the gefs, and in fact,
cpc is indicating a slightly increased probability of below normal
temperatures and above normal precipitation during this time
period. Doubtful it'll be time to break out the pumpkin spice, but
perhaps we might manage to get some reasonable temperatures
(highs only in the upper 80s?) in time for labor day weekend. We
shall see.


Preliminary point temps pops
Dallas-ft. Worth 81 99 80 99 80 0 0 5 5 0
waco 77 98 77 99 77 0 0 0 5 0
paris 77 96 75 95 75 0 0 5 10 10
denton 78 99 79 98 78 0 0 5 5 5
mckinney 77 99 78 98 77 0 0 5 5 5
dallas 83 100 81 100 80 0 0 5 5 0
terrell 77 98 79 100 77 0 0 5 5 5
corsicana 77 97 77 96 76 0 0 0 5 0
temple 76 99 76 97 75 0 0 0 5 0
mineral wells 75 99 75 98 75 0 0 0 5 5

Fwd watches warnings advisories
Heat advisory until 8 pm cdt Wednesday for txz092>095-103>107-

Heat advisory until 7 pm cdt this evening for txz091-101-102-117-


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Waco, Waco Regional Airport, TX4 mi43 minSSE 1310.00 miFair90°F72°F56%1013.2 hPa

Link to 5 minute data for KACT

Wind History from ACT (wind in knots)
Last 24hrE6E6------S10----S8S7S7S8S8SW6S8SE74S9S5S8S9S7SE7SE9
1 day agoSE10SE11------S12----S11S8S11S10S12S15S11S10S9
2 days agoSE8SE7SE11SE10S16

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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GOES 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 Fort Worth, TX (22,6,7,8)
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Ground Weather Radar Station Central Texas
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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.