Friday, April20, 2018 L-36.com


Marine Weather and Tides
Cedar Hill, TX

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.

Sunrise 6:50AMSunset 8:02PM Friday April 20, 2018 10:42 PM CDT (03:42 UTC) Moonrise 9:43AMMoonset 12:00AM Illumination 32% Phase: Waxing Crescent; Moon at 6 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 Cedar Hill, TX
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location: 32.63, -96.99     debug


Area Discussion for - Fort Worth, TX
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Fxus64 kfwd 210301
afdfwd
area forecast discussion
national weather service fort worth tx
1001 pm cdt Fri apr 20 2018

Update
The upper low continues to move east from the 4 corners region
this evening. Large scale upward vertical motion continues to
interact with increasing low level moisture to produce numerous
showers and thunderstorms from the texas south plains, northward
into nebraska. The individual storms will continue to move
northeast while the general precipitation area moves east. Linear
extrapolation and some high res models bring the first
showers storms into the western zones around 08z with
showers storms reaching near the i-35 corridor around sunrise or a
bit after. The consensus among the models is that the morning
activity will be relatively weak with the potential for stronger
storms during the afternoon with the cold front. This supports the
ongoing forecast although we will adjust the late evening early
overnight pops down based on the expected timing.

The remainder of the forecast is in good shape for now.

Aviation issued 735 pm cdt Fri apr 20 2018
00z tafs
concerns- timing of showers and thunderstorms and MVFR ceiling at
all TAF sites.

Vfr conditions through tonight. However, flight conditions will
slowly deteriorate during the early morning hours on Saturday. The
anticipated upper low system will approach and showers and
thunderstorms will overspread the area. There's high confidence
that by 14z rain showers and isolated storms will impact all the
tafs sites. Low-end MVFR conditions will accompany this
activity with the possibility of ifr conditions. Some of the
guidances keep it for most of the day, but for now probability is
too low for inclusion. Model trends will be monitored and later
tafs will include it if necessary.

The challenge continues to be the chance for a second round of
storms during the afternoon hours, likely between 22-00z as the
cold front surges through the area. We know the lift will be
there, but it will also depend on how the atmosphere can recover
from the morning convection and where instability will be the
greatest. Most of the high-resolution models develop storms along
the front and move them quickly to the southeast, impacting waco
taf site later in the evening. For now, kept vcts in the forecast
for the metroplex sites, but we will continue to monitor as new
data becomes available. Expect east southeast 10-15 kts winds
during the day ahead of the front, shifting to the north northwest
around 00z for the metroplex and around 02z for waco.

Sanchez

Short term issued 332 pm cdt Fri apr 20 2018
tonight
convection has increased across northwest texas over the past few
hours in advance of an eastward-moving upper level low pressure
center currently located over the four-corners area. This zone of
enhanced ascent will spread east this evening and begin to affect
the northwest counties by midnight. Increasing pops continue to be
advertised tonight across the northwestern third of the forecast
area, with precipitation approaching the i-35 35w corridor in the
pre-dawn hours Saturday. Severe weather is unlikely with the
overnight convection, but there should be enough elevated
instability for a few strong storms with small hail. Otherwise,
cool and breezy conditions will persist with winds out of the
east-southeast at 10 to 15 mph and lows generally in the 50s.

30

Long term issued 332 pm cdt Fri apr 20 2018
Saturday through Friday
the upper level low currently over the four-corners area should
be over southeastern colorado at 7 am Saturday. Meanwhile,
a surface low will be over west texas near lubbock with a dryline
extending southward and a warm front extending eastward north of
the i-20 corridor. A cold front will extend to the northwest of
the surface low.

With strong isentropic upglide occurring across north and central
texas Saturday morning, showers and thunderstorms are forecast to
be on-going west of i-35 before daybreak Saturday. These showers
and thunderstorms will move east across the rest of the forecast
area during the morning into the early afternoon. The storms are
not expected to be severe, but will produce some cloud to ground
lightning and maybe some brief heavy rainfall. There remains a
question about how much the morning clouds and convection will
affect the development of afternoon convection. Some of the
convection allowing models are generating another round of showers
and thunderstorms by mid Saturday afternoon while others are not
so excited. The most likely area for some strong to severe storms
mid to late Saturday afternoon should be across the western zones
where where the strong low level warm advection ahead of the
advancing surface low and dry line will allow temperatures to warm
into the mid to upper 70s. A cold front will overtake by late
afternoon into the evening and sweeps through the forecast area
well overnight Saturday night. The chances of showers and
thunderstorms will end from west to east late evening through the
overnight hours as the upper level low moves across oklahoma
toward southwest arkansas.

Cannot rule out a few showers lingering into Sunday morning across
the northeastern zones with some wrap-around moisture from the
upper level low. Otherwise, dry weather is expected Sunday through
Tuesday.

A northern stream shortwave will move southeast across the
northern and central plains Tuesday night and Wednesday. This
system and its accompanying cold front will bring chances of
showers and thunderstorms Tuesday night and Wednesday.

Another shortwave in the northwesterly flow aloft, should
allow for other chances of showers and thunderstorms late week,
but the models differ on how they handle this system. For now,
have just placed low pops for the Wednesday night through Friday.

58

Preliminary point temps pops
Dallas-ft. Worth 53 66 51 67 51 20 80 60 5 0
waco 53 71 51 70 50 20 70 50 5 0
paris 48 64 51 65 50 10 90 70 10 5
denton 52 64 49 67 49 30 80 50 5 0
mckinney 51 63 50 66 49 20 80 60 10 0
dallas 54 66 52 67 53 20 80 60 5 0
terrell 52 66 52 68 50 10 70 70 10 0
corsicana 52 68 53 67 51 10 70 70 5 0
temple 54 72 52 72 51 20 60 50 5 0
mineral wells 52 69 48 68 47 50 70 40 5 0

Fwd watches warnings advisories
None.



Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Grand Prairie, Grand Prairie Municipal Airport, TX6 mi47 minESE 910.00 miFair62°F42°F49%1018.6 hPa
Arlington Municipal Airport, TX6 mi49 minESE 1010.00 miFair61°F45°F56%1017.5 hPa
Dallas, Redbird Airport, TX8 mi49 minSE 910.00 miFair61°F44°F54%1017.7 hPa
Lancaster Airport, TX15 mi47 minSE 810.00 miFair60°F43°F54%1018.6 hPa
Fort Worth Spinks Airport, TX17 mi47 minSE 510.00 miFair60°F43°F54%1018.6 hPa
Dallas Love Field, TX18 mi49 minSE 1310.00 miA Few Clouds63°F44°F50%1017.9 hPa
Dallas/Fort Worth International Airport, TX19 mi49 minSE 1110.00 miA Few Clouds61°F44°F54%1017.2 hPa
Fort Worth, Meacham International Airport, TX24 mi49 minSE 1110.00 miFair64°F44°F48%1017 hPa

Wind History from GPM (wind in knots)
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Last 24hrCalmCalmCalmCalmNE5NE6E5E9E8E10
G20
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G24
E10
G20
E8
G16
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G18
E8E8E10E9
G16
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SE8
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SE9E7SE8SE6
1 day agoNW3CalmN3N8N8N7N4N4N8N10N10N10N12N10N8
G14
N12
G18
--N12
G18
N10N10N10N10N3Calm
2 days agoS15
G21
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G24
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G23
S9
G17
S11
G16
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G15
S9
G16
S8CalmN10
G22
N15
G24
N18
G23
NW9
G17
N14
G24
NW11
G20
N12
G22
N12
G22
N15
G20
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G22
NW13
G17
NW7NW7N4N4

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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wmap_A
GOES Local Image of SouthCentralPlains    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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Fort Worth, TX (23,6,7,8)
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Ground Weather Radar Station Dallas/Fort Worth, TX
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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 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.