Tuesday, March19, 2019 L-36.com


Marine Weather and Tides
Hemby Bridge, NC

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:26AMSunset 7:34PM Tuesday March 19, 2019 3:51 AM EDT (07:51 UTC) Moonrise 5:08PMMoonset 5:46AM Illumination 97% Phase: Waxing Gibbous; Moon at 13 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 Hemby Bridge, NC
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location: 35.11, -80.62     debug


Area Discussion for - Greenville-Spartanburg, SC
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Fxus62 kgsp 190645
afdgsp
area forecast discussion
national weather service greenville-spartanburg sc
245 am edt Tue mar 19 2019

Synopsis
Expect dry conditions this week with below normal temperatures
into mid week, then a warming trend into the weekend. The weather
becomes a little more active next week.

Near term until 6 pm this evening
As of 1000 pm: the fcst is still on track. Copious cirrus continues
to stream newd across the southeast conus, with the forecast area on
the thin, northern edge of the cloud shield. Meanwhile, dry high
pressure centered over the ohio valley, is providing enough of a
pres gradient to keep some light mixing across the area this
evening. Despite this, still seeing decent radiational cooling
conditions and temps should fall to about 5-10 degrees below normal
overnight, with freezing temps expected across the mtns as well as
the foothills and northern piedmont of nc. Dry and unseasonably cool
conditions continue into Tuesday, with cooling NE flow expected to
support MAX temps several degrees cooler than today's readings, or
around 10 degrees below normal.

Short term 6 pm this evening through Thursday
As of 235 pm edt Monday: the short-term fcst picks up at 00z on
Wednesday with broad upper trofing over the NE CONUS and weak
upper ridging over the sw. During the next 24 to 48hrs, the upper
trof will amplify over the great lakes and move the trof axis
over the cwfa by the end of the period late Thursday. At the sfc,
broad and dry high pressure will be centered to our NE as the
period begins. By late Wed early thurs, the high will have moved
farther offshore as a weak cold front approaches the fcst area
from the west. At the same time, some sort of meso-low tries to
spin up just off the SE coast, however it's unclear exactly where
it will be centered and how strong it will become. The cold front
will move thru the cwfa on thurs without too much fanfare. There
is some deeper moisture out ahead of it, but not that much. In
its wake, very broad high pressure will spread back over the
region. Wed should be dry with some slight chance to chance pops
over the mtns and foothills as the front moves thru. Any precip
that does materialize should be minimal. It may be cold enough
over the highest peaks to get some snow flurries early thurs,
but no accumulations are expected. Temps will start out below
normal and warm to near normal by Friday.

Long term Thursday night through Monday
As of 225 pm edt Monday: the extended fcst picks up at 00z on
Friday with deep upper trofing centered just to our east and
upper ridging to our west. The long-range models indicate that
the trof will get reinforced during the day on Friday and then
move offshore on sat. As it does, heights will recover as the
upper ridge slides farther east. By Sunday afternoon evening
the ridge axis is expected to be centered over the fcst area.

For the remainder of the period, heights will slowly fall as
the ridge deamplifies and another upper trof approaches the
southeast from the west. At the sfc, very broad and dry high
pressure will spread over the region on Friday and remain in
place thru most of the weekend. By late Sunday, the center of
the high will be moving off the SE coast as light sly low-lvl
flow returns to the fcst area. As for the sensible wx, no major
changes were needed to the fcst with dry conditions thru the
weekend and pops ramping up on Monday as deeper moisture returns
to the region. Temps will start out near normal on Friday and
warm thru the period.

Aviation 07z Tuesday through Saturday
At kclt and elsewhere: surface high pressure will supportVFR conds
through the TAF period. A few low end gust are possible between 14-
17z with light winds otherwise. Low confidence in wind direction at
kavl after 18z.

Outlook: dry weather continues thru at least Wednesday. Showers with
associated restrictions are possible Thursday in response to a cold
front pushing through the region and a developing low at the coast.

Confidence table...

06-12z 12-18z 18-24z 00-06z
kclt high 100% high 100% high 100% high 100%
kgsp high 100% high 100% high 100% high 100%
kavl high 100% high 100% high 100% high 100%
khky high 100% high 100% high 100% high 100%
kgmu high 100% high 100% high 100% high 100%
kand high 100% high 100% high 100% high 100%
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 54 mi61 min NNE 1.9 G 6 46°F
LMFS1 - Lake Murray SC 77 mi31 min NNE 1.9 G 5.1 45°F 1026.4 hPa

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Monroe, Monroe Airport, NC6 mi58 minNNE 910.00 miFair40°F18°F41%1028.6 hPa
Charlotte, Charlotte / Douglas International Airport, NC18 mi59 minNNE 1010.00 miMostly Cloudy41°F16°F36%1027.7 hPa
Concord Regional Airport, NC20 mi4.9 hrsN 710.00 miFair45°F17°F34%1027.8 hPa

Wind History from EQY (wind in knots)
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Last 24hrW3SW5W5W3CalmSW3N7N10N8NW7
G16
NW10NW8N9
G15
N12NW9
G17
N9N14
G19
N9N9N10N9NE11NE9NE9
1 day agoN5N6N7N7NE7N10NE12NE12NE7N3NE65S4CalmSW4NW4CalmCalmCalmS3CalmCalmCalmSW3
2 days agoN14
G19
N11
G18
N6N8N5N7N12N8N8N8
G15
N6N8N4NW5CalmW3CalmCalmCalmW3NW3NW3N4N5

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    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 Greenville-Spartanburg, SC (3,6,7,8)
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Ground Weather Radar Station Columbia, 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.