Wednesday, April21, 2021
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Marine Weather and Tides
Grapevine, TX

Version 3.4
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1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:50AMSunset 8:03PM Tuesday April 20, 2021 11:14 PM CDT (04:14 UTC) Moonrise 12:09PMMoonset 1:56AM Illumination 68% Phase: Waxing Gibbous; Moon at 9 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 Grapevine, TX
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location: 32.96, -97.08     debug


Area Discussion for - Fort Worth, TX
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FXUS64 KFWD 202218 AFDFWD

Area Forecast Discussion National Weather Service Fort Worth TX 518 PM CDT Tue Apr 20 2021

. New Short Term, Aviation .

SHORT TERM. /NEW/ /Through Tomorrow/

An unseasonably strong cold front has now cleared through our entire forecast area with gusty north winds ongoing. Strong cold advection behind the front has dropped temperatures into the 50s and 60s despite abundant insolation and drier air. Areas NW of DFW are about 20-25 degrees cooler than yesterday, DFW and the I-20 corridor is about 10-15 degrees cooler, and Central Texas is about 5-10 degrees cooler.

A high pressure ridge will move into North Texas tonight and help drop the wind speeds this evening and tonight. Light winds, clear skies, and drier air will promote very efficient radiational cooling and allow temperatures to drop near or below freezing for most locations generally north of I-20. Due to this, we will continue the Freeze Warning with no changes. The areas within the DFW Metroplex will have a hard time dropping below freezing, or even dropping below the mid 30s, because of the urban heat island effect. The other impact of the cold will be patchy to widespread frost developing for much of the region. It only takes temperatures around 38 degrees for frost to form if there is ample surface/ground moisture and very light winds. This is possible as far south as about US-84, but is more likely along and north of US-67 and areas that will drop below freezing. Areas farther south across Central Texas will remain too breezy for temperatures to drop below freezing and for frost to form.

While this would be an inconsequential forecast during the Winter when vegetation is dormant, the growing season is currently in full swing. Temps at or below 32 degrees will likely damage tender foliage and flowers of many growing plants. Frost will likely damage the leaves of tender foliage, but typically not cause stem damage unless it is thin/narrow new growth. Please take action tonight before you head to bed (or work) to protect your sensitive and growing vegetation. Placing anything between the plants and the sky will work to prevent frost, even something as simple as a piece of cardboard or a sheet will help protect your vegetation.

Tomorrow will start cold but "warm" up quickly. Any frost that develops tonight should melt in short order. It should actually end up being a nice, albeit slightly chilly, day with high temps in the upper 60s. Some mid to upper clouds should be streaming across the area through the day, with a few low clouds over Central Texas that will help keep temperatures somewhat cool despite the dry surface air.

Bonnette

LONG TERM. /Issued 319 PM CDT Tue Apr 20 2021/ /Wednesday Night through Tuesday/

High pressure will be shifting to the east by Wednesday night into early Thursday morning with light southeast winds returning. It'll still be cool early Thursday morning with temperatures generally in the 40s areawide. An upstream shortwave trough will be digging across southern California late in the day Thursday which will result in increased cloud cover across the region. Given the increase in cloud cover, Thursday will be a cool day with highs remaining in the 60s throughout North Texas along with increasing southerly winds.

Rapid changes will occur late Thursday into Friday as our shortwave trough spreads across southern Arizona and New Mexico. A surface low across eastern New Mexico will deepen as it moves into the TX Panhandle early Friday. In response, southerly flow will increase with strong warm advection overspreading North Texas by early Friday morning. A warm front near the coast will steadily advance northward with dewpoints likely climbing 8-10 degrees into the mid/upper 50s overnight Thursday into Friday. At this time range there is still some discrepancy among the guidance with respect to warm sector development and the amount of precipitation that will be ongoing early Friday morning. The GFS/ECWMF are still the coldest guidance, but both have quite a bit of early morning convection across the region. While the trough would still arrive later in the day, a classic dryline severe weather setup could get disrupted by an abundance of early convection. The NAM is most aggressive with a classic spring time severe weather setup with a relatively quiet morning period and deeper convection developing in the afternoon within the warm sector. For now, given the cold airmass that we'll initially start off with and the strength of the low level warm advection and moisture surge expected early Friday, I'm inclined to think that we'll have at least some morning showers/storms across the region. This activity is likely to steadily increase in intensity through the day as the warm front spreads northward and we destabilize across the region. This setup, at least at this time, appears to be messy with little capping inhibiting early convective development. There's still a good bet that we'll have severe weather somewhere across the region, but finer details will be resolved in the coming days. The upper trough will swing through North Texas late Friday with the cold front spilling slightly cooler and drier air into the region Saturday.

A quiet weekend is expected with temperatures steadily climbing into the mid 80s by early next week. Another chance for thunderstorms will arrive on Tuesday afternoon.

Dunn

AVIATION. /NEW/ /00Z TAFs/

Gusty north winds will continue late this afternoon and early this evening, but weaken shortly after sunset. The wind speeds should drop to around 11 kts and shift to be out out of the northeast around 01Z then drop below 07 kts by around midnight. A northeast wind will prevail through the morning and much of the day tomorrow eventually becoming southeasterly tomorrow evening. Clear skies will prevail tonight . but a stream of mid to upper level moisture should allow for sporadic VFR ceilings across the region tomorrow.

Bonnette

PRELIMINARY POINT TEMPS/POPS. Dallas-Ft. Worth 37 61 48 67 57 / 0 0 5 10 10 Waco 38 62 46 68 59 / 0 0 0 10 20 Paris 32 61 45 65 54 / 0 5 10 10 20 Denton 33 61 43 64 54 / 0 0 5 10 10 McKinney 33 62 44 66 55 / 0 0 5 10 20 Dallas 39 62 49 69 59 / 0 0 5 10 20 Terrell 34 61 44 67 56 / 0 0 5 5 20 Corsicana 37 61 45 70 59 / 0 0 0 5 20 Temple 40 62 45 68 59 / 0 0 0 10 30 Mineral Wells 31 60 43 64 55 / 0 0 5 10 10

FWD WATCHES/WARNINGS/ADVISORIES. Frost Advisory from 3 AM to 9 AM CDT Wednesday for TXZ118>122- 130>135-141>146-156-157-159.

Freeze Warning from 3 AM to 9 AM CDT Wednesday for TXZ091>095- 100>107-115>117-123-129.




Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Dallas/Fort Worth International Airport, TX4 mi21 minNE 710.00 miFair45°F32°F61%1025.7 hPa
Dallas / Addison Airport, TX13 mi39 minNNE 710.00 miFair43°F31°F63%1027.1 hPa
Fort Worth, Fort Worth Alliance Airport, TX13 mi21 minNNE 610.00 miFair43°F31°F63%1026.5 hPa
Dallas Love Field, TX14 mi21 minNNE 810.00 miFair45°F31°F58%1026.4 hPa
Denton Enterprise Airport, TX17 mi21 minN 310.00 miFair39°F33°F79%1026.7 hPa
Fort Worth, Meacham International Airport, TX17 mi21 minN 810.00 miFair42°F32°F68%1026.4 hPa
Grand Prairie, Grand Prairie Municipal Airport, TX18 mi19 minN 9 G 1710.00 miFair45°F31°F58%1027.1 hPa
Arlington Municipal Airport, TX20 mi21 minN 1010.00 miFair48°F32°F54%1026 hPa
Fort Worth, Naval Air Station, TX20 mi22 minNNE 1010.00 miFair47°F32°F56%1024.8 hPa
Dallas, Redbird Airport, TX22 mi21 minNNE 910.00 miFair45°F31°F58%1025.9 hPa

Link to 5 minute data for KDFW

Wind History from DFW (wind in knots)
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Last 24hrS10S9S8S6SW8SW9SW9N8S3NW10
G17
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G25
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N15NE16NE15
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1 day agoSW3E3SW3SW5SW5SW4CalmSW3SW4S3SW6S10SW9
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2 days agoN8N6N7NW6NW7NW8NW7NW9NW8NW7NW7NW10NW7NW10
G20
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NW7NW11N9N5NW5NW4

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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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