Marine Weather and Tides
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
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.
|Sunrise 6:23AM||Sunset 8:58PM||Thursday July 2, 2020 6:05 PM EDT (22:05 UTC)||Moonrise 5:41PM||Moonset 3:05AM||Illumination 92%|
7 Day Forecast for Marine Location Near Farragut, TNHourly EDIT Help
Area Discussion for - Morristown, TN  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS64 KMRX 021921 AFDMRX
AREA FORECAST DISCUSSION National Weather Service Morristown TN 321 PM EDT Thu Jul 2 2020
SHORT TERM. (Tonight and Friday) . Upper air pattern has a closed low over New England and a ridge stretching from the southern Plains northeast into the Great Lakes. A cold front lies south of the forecast area generally from southern South Carolina west through central Georgia and Alabama into northern Mississippi. Skies are partly cloudy to mostly sunny this afternoon. Isolated showers are developing across southwest North Carolina and the southern Cumberland Plateau. Light surface flow is from the northeast to southwest with drier airmass moving into northeast sections with dew points across southwest Virginia dropping into the mid to upper 50s. Mid afternoon temperatures are in the 80s to around 90. Higher dewpoints in the southeast are bumping heat index values there into the mid 90s.
Anticyclonic flow aloft around ridge building to the northwest and cyclonic around northeast upper low will continue tonight and keep drier air mass over region. Lows will be cooler northeast and central in the 60s to around 70 at Chattanooga in the southeast. More fog is likely tonight but not as widespread as this morning. Friday expect similar conditions as ridge strengthens a little more across Ohio Valley and Great Lakes with upper level low moving off east coast. Showers and storms will be isolated again Friday late afternoon and early evening from the Smoky Mountains south to southwest North Carolina and west to around Chattanooga with less activity on the Plateau. Highs Friday again mostly upper 80s to lower 90s in the valleys.
LONG TERM. (Friday through Wednesday) . The extended range forecast period kicks off on Friday night as heights continue to rise across the southeast CONUS thanks to broad/deep H5 ridging moving in from the west. At the surface, high pressure extending southward from the Upper Midwest will drive relatively drier air southward, north an old warm frontal axis oriented across the Deep South. For Saturday, most of the area along/north of I40 should remain dry given deep subsidence, while regions further south and across the high terrain will be highlighted by low end pops. Into Sunday, not much change overall with the synoptic pattern other than perhaps some slight weakening of the upper ridge over the area as the center of the anticyclonic flow drifts westward, therefore pops will increase slightly regionwide.
Moving into the new work week, some model uncertainty is evident at this range with both the GFS/ECMWF favoring H5 ridging over the Desert Southwest and across the OH/TN Valley, while a weak upper low promotes enhanced coverage of convection closer to the Gulf Coast. Moving forward however, the ECMWF suggests an eastward drift of this H5 depression (and associated surface wave) along the I10 corridor through midweek, while the GFS tends to slowly lift this feature more northward into the lower OH/TN Valleys. The later solution would suggest higher pops through midweek across East TN and southwest VA/NC given increased PVA amidst a more unstable warm sector while the former favors mostly diurnal convection, however both with the highest pops further south. Although with much uncertainty regarding location/magnitude, models do indicate the potential for moderate to heavy rainfall as an axis of moisture sets up near/across the region with pwats approaching/exceeding 2" by mid/late week. As for the fcst itself, will generally lean on the blend keeping pops mainly diurnal each afternoon and capped at chances levels. Temperatures will be warmest this upcoming weekend with most areas topping out in the upper 80s to lower 90s, with slightly cooler levels (only by a degree/two) next week given weakened ridging and increasing moisture/clouds.
AVIATION. 18Z TAF DISCUSSION.
VFR conditions today with scattered clouds. Tonight mostly clear with fog forming late. Drying today will keep fog formation more isolated tonight. Will put MVFR fog in TYS for a couple hours late tonight and early Friday. TRI will likely have a longer period of MVFR fog than TYS. Confidence is high that it will drop to at least IFR for a couple hours. VFR conditions for all sites from 13Z on Friday.
PRELIMINARY POINT TEMPS/POPS. Chattanooga Airport, TN 70 92 71 91 71 / 10 10 10 30 20 Knoxville McGhee Tyson Airport, TN 68 91 69 91 70 / 10 10 10 20 10 Oak Ridge, TN 68 92 69 91 70 / 10 10 10 10 0 Tri Cities Airport, TN 62 90 66 89 66 / 10 0 0 20 10
MRX WATCHES/WARNINGS/ADVISORIES. NC . NONE. TN . NONE. VA . NONE.
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.
|Knoxville, McGhee Tyson Airport, TN||10 mi||72 min||ENE 7||10.00 mi||Partly Cloudy||88°F||66°F||48%||1012.7 hPa|
|Oak Ridge, TN||12 mi||72 min||N 4||10.00 mi||A Few Clouds||88°F||66°F||50%||1013.1 hPa|
Link to 5 minute data for KTYS
Wind History from TYS (wind in knots)
|1 day ago||SW||SW||SW||SW||SW||Calm||SW||S||Calm||Calm||SE||W||Calm||W||W||W||W||W||W||N||N||N|
|2 days ago||NE||W||SW||Calm||SE||Calm||Calm||NW||SW||E||Calm||Calm||Calm||Calm||Calm||SW||W||SW||SW||SW||SW|
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GEOS Local Image of Southeast 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 Morristown, TN (18,4,5,8)(on/off)  Help
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