Thursday, April27, 2017 L-36.com


Marine Weather and Tides
Charlotte, NC

Version 3.4
What's New / NOTES
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:33AMSunset 8:07PM Thursday April 27, 2017 10:28 PM EDT (02:28 UTC) Moonrise 6:43AMMoonset 8:37PM Illumination 4% Phase: Waxing Crescent; Moon at 2 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 Charlotte, NC
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location: 35.21, -80.83     debug


Area Discussion for - Greenville-Spartanburg, SC
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Fxus62 kgsp 280215
afdgsp
area forecast discussion
national weather service greenville-spartanburg sc
1015 pm edt Thu apr 27 2017

Synopsis
Warm and humid high pressure will build in through the end of the
work week. A front will move into the area late this weekend,
increasing chances for showers and thunderstorms on Sunday. Another
front will approach by the middle of next week.

Near term /through Friday/
As of 10 pm edt Thursday: deep convection lingering along the
southeast cwfa fringe counties will slowly diminish over the next
several hours. With moisture profiles continuing to become
increasingly shallow overnight, waning cloudiness will give way to
areas of locally dense fog and stratus. On Friday, midlevel ridging
will build atop the southeast as central CONUS trough digs more into
the southwest. Consequently, Friday's temperatures will warm into
the 80s with more sensible humidity than we have seen in recent
months.

Short term /Friday night through Sunday/
As of 225 pm Thursday: the short term fcst picks up at 00z on
Saturday with steep upper ridging building over the region as an
equally steep upper trof digs down across the extreme SW conus. The
upper ridge is expected to slowly drift eastward thru the period,
yet it should remain largely in place over our region. At the sfc,
the bermuda high will keep warm southerly flow over the region thru
the period with the next frontal system approaching the fcst area by
the end of the short term late Sunday. The sensible fcst will be
marked by well above normal temps and high dewpts in the 60s. Better
cloud cover on Sun should keep temps about a category cooler than
sat. These conditions should provide ample instability each day for
diurnally driven tsra.

Long term /Sunday night through Thursday/
As of 235 pm edt Thursday... The extended fcst picks up at 00z on
Monday with steep upper ridging centered just off the atlantic coast
and a deep upper trof moving across the southern plains and into the
mississippi river valley. As the trof approaches our area, it is
expected to lift NE and up over the great lakes by early Tuesday.

Over the next 24 hrs or so, the trof lifts farther NE over southern
ontario/quebec as heights begin to recover over the southeast.

During the remainder of the period, a southern stream upper trof
amplifies over the ARKLATEX region and encroaches upon our fcst area
by the end of the period late Thursday. At the sfc, warm sly flow
will persist across the area into early Monday. The next frontal
system will move thru the fcst area sometime Monday morning to
Monday afternoon bringing with it a good chance for widespread
showers and ts. Drying high pressure will overspread the area in the
front's wake on tues with another frontal system approaching the
cwfa by the end of the period on thurs.

Aviation /02z Friday through Tuesday/
At kclt and elsewhere: showers and perhaps a thunderstorm will
continue to percolate across piedmont sections of the fa until about
02-03z. Overnight, a very moist blyr remains in place, so expecting
widespread fog and areas of ifr stratus. Most locations in the
region should beVFR by 14-15z Friday with a quiet afternoon
expected featuring justVFR lvl CU and ssw winds abt 10 kts.

Outlook: high pressure on Friday should lead to widespreadVFR with
more diurnally-based showers and thunderstorms possible Saturday and
Sunday.

Confidence table...

02-08z 08-14z 14-20z 20-00z
kclt med 61% med 64% high 89% high 100%
kgsp low 53% low 53% med 73% high 98%
kavl high 97% high 83% high 90% high 100%
khky med 62% high 90% high 80% high 100%
kgmu low 55% low 54% med 75% high 98%
kand low 56% low 53% high 96% high 98%
the percentage reflects the number of guidance members agreeing
with the scheduled TAF issuance flight rule category. Complete hourly
experimental aviation forecast consistency tables and ensemble forecasts
are available at the following link:


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WATS1 - Lake Wateree, SC 61 mi58 min SE 1.9 G 5.1 73°F
LMFS1 - Lake Murray SC 80 mi68 min SW 4.1 G 5.1 75°F 1011.2 hPa

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Charlotte, Charlotte / Douglas International Airport, NC6 mi36 minS 810.00 miMostly Cloudy73°F66°F79%1011.8 hPa
Concord Regional Airport, NC14 mi38 minN 010.00 miMostly Cloudy72°F66°F83%1013.5 hPa
Gastonia Municipal Airport, NC17 mi34 minSSW 37.00 miPartly Cloudy70°F64°F84%1011.7 hPa
Monroe, Monroe Airport, NC17 mi35 minVar 410.00 miOvercast72°F64°F79%1012.2 hPa
Rock Hill, Rock Hill - York County Airport, SC20 mi34 minSSW 58.00 miOvercast70°F66°F90%1011.7 hPa

Wind History from CLT (wind in knots)
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Last 24hrS5S3S8S9S9S7S6S5S3S8S6SW8SW8S15
G19
S14SE12S10S11S10S8S8S5S3S8
1 day ago5E3SE5S4CalmCalmCalmSE4SE5SE6SE6S3SW3W6W7SW35SW9SW10SW4SW8S6S6S6
2 days agoN10N6N6N6N7N6N6N7NW7N8N9N9N9N9N7E8NW3NE5NW4N7NE6CalmE4E4

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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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Mid-Atlantic    EDIT
Geos

Wind Forecast for Greenville-Spartanburg, SC (22,6,7,8)
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Ground Weather Radar Station Greer, SC
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weather_mapweather_map weather_map

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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.