Marine Weather and Tides
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 6:48AM||Sunset 8:12PM||Saturday August 17, 2019 1:05 PM CDT (18:05 UTC)||Moonrise 8:44PM||Moonset 7:36AM||Illumination 95%|
7 Day Forecast for Marine Location Near Preston, TXHourly EDIT Help
Area Discussion for - Fort Worth, TX  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus64 kfwd 171752 aab|
area forecast discussion... Updated
national weather service fort worth tx
1252 pm cdt Sat aug 17 2019
no concerns.VFR with south flow.
Broad ridging aloft will prevail, generally south of our latitude,
connecting the hawaiian and bermuda highs. The mid-latitude
westerlies north of this feature will keep low-level troughing
anchored in the lee of the rockies, maintaining an unseasonably
potent conveyor from the tropical waters of the southwestern gulf
into the central plains. These south winds will be generally 10 to
15 knots, but occasionally higher gusts will occur.
Another ripple embedded in the westerlies is responsible for the
ongoing convection within oklahoma again today. This impulse has
a more southerly trajectory to its predecessor, and the tail end
of the elevated activity will dip south of the red river in
northwest texas. Subsidence will soon bring this to end, but
surface-based storms are expected to develop later this afternoon
along a west texas dryline, the southern extent of the lee trough
axis. Although some of these cells may disrupt west departures and
northwest arrivals late in the day, the activity should remain
well beyond the bowie cornerpost, and no impacts are anticipated
with the dfw tracon.
A renewed round of sea breeze showers storms should remain
confined to southeast texas again this afternoon evening, but
the moist conveyor aiding in this convective initiation could
allow some of the activity to move develop deeper into east texas.
This moisture flux will also encourage a more vigorous stratus
intrusion Sunday morning. The veered flow within the cloud-bearing
layer will keep the bulk of the ceilings south and east of waco,
but a tempo for MVFR ceilings fl012-020 may be needed with
subsequent TAF packages, primarily in the 10-14z (5-9am cdt) time
Short term issued 308 am cdt Sat aug 17 2019
rather impressive zonal mid-level flow (at least by august
standards) is maintaining a tight low-level pressure gradient
across the southern plains currently, with recent VWP data
suggesting 925mb flow from the south around 30-35 kt. In turn,
gulf moisture continues to stream north across our area. Thus,
while afternoon mixing should be relatively deep, our low-level
moisture should be of sufficient depth to maintain surface dew
points in the 60s to lower 70s in most spots around peak heating.
With temperatures rising into the upper 90s to lower 100s, this
moisture profile should yield heat indices around 105-108 in many
locations. Therefore, have opted to issue a heat advisory for
today (as well as tomorrow -- see the long-term discussion for
Besides the heat, there's a slim chance for a shower or two across
east texas this afternoon, where the deepest moisture will
reside. However, given a lack of any clear forcing for ascent and
persistent dry air in the mid levels, refrained from introducing|
any convection to the forecast at this time.
Long term issued 308 am cdt Sat aug 17 2019
Sunday through next weekend
a mid upper ridge will strengthen while expanding north into the
plains on Sunday, then remain dominant across the central part of
the CONUS through the first part of next week. Triple digit high
temperatures will be common at least through Monday. In addition,
persistent southerly winds will continue to bring gulf moisture
northward across the region, preventing any significant diurnal
drop in the dewpoint temperature. The resulting heat indices will
be widespread in the 105 to 110 range each afternoon, and barring
any unforeseen circumstances the heat advisory will likely need
to be extended into Monday at some point this weekend.
A brief opportunity for relief will occur Tuesday as a subtle
weakness develops over the southern edge of the ridge. A strong
seabreeze is progged to push inland Tuesday afternoon, and slight
chance pops have hence been added across the southeastern-most
row of counties. The rest of the region will remain hot and
rain-free, though perhaps a couple of degrees cooler than
The latest guidance continues to indicate a break-down of the
ridging over the plains during the second half of next week as
the ridge center shifts westward into the rockies. A shortwave
embedded in the subsequent northwest flow aloft should kick off a
round of convection north of the region Wednesday afternoon.
Showers and storms will likely move southeast, some of which may
cross the red river Wednesday evening. Low-end pops have hence
been included for areas north of the i-20 corridor Wednesday
night, then to areas along and east of i-35 on Thursday as the
disturbance continues to move southeast.
A second shortwave will generate another round of showers and
storms by Friday, but at this time it looks like the disturbance
and associated convection will remain north of the region.
Near-normal temperatures and little to no rain chances will
therefore be the official forecast as we enter next weekend.
Preliminary point temps pops
Dallas-ft. Worth 101 80 101 81 101 5 0 0 0 0
waco 101 79 102 79 101 5 0 0 0 0
paris 97 77 96 77 97 5 5 0 10 5
denton 100 79 101 80 101 5 0 0 5 0
mckinney 99 78 100 79 100 5 0 0 5 0
dallas 100 81 101 81 101 5 0 0 0 0
terrell 99 78 102 79 101 10 0 0 0 0
corsicana 99 78 99 78 98 10 0 0 0 0
temple 100 78 101 77 99 5 0 0 0 0
mineral wells 102 78 102 77 101 5 0 0 0 0
Fwd watches warnings advisories
Heat advisory until 7 pm cdt Sunday for txz091>095-100>107-
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.
|Sherman/Denison, Grayson County Airport, TX||8 mi||75 min||S 10 G 16||10.00 mi||Fair||93°F||73°F||53%||1012.5 hPa|
|Durant, Eaker Field Airport, OK||14 mi||69 min||S 11||10.00 mi||Fair||93°F||71°F||50%||1012.9 hPa|
Link to 5 minute data for KGYI
Wind History from GYI (wind in knots)
|1 day ago||S||S||SE||SE||SE||SE||E||SE||SE||SE||SE||SE||SE||SE||SE||SE||S||S||S||S||S|
|2 days ago||Calm||NE|
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Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Fort Worth, TX (14,3,4,5)(on/off)  Help
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