Marine Weather and Tides
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 6:15AM||Sunset 8:34PM||Tuesday May 21, 2019 6:40 PM EDT (22:40 UTC)||Moonrise 10:29PM||Moonset 7:33AM||Illumination 91%|
7 Day Forecast for Marine Location Near Clinchco, VAHourly EDIT Help
Area Discussion for - Charleston WV  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus61 krlx 211843|
area forecast discussion
national weather service charleston wv
243 pm edt Tue may 21 2019
High pressure continues into tonight. Much warmer Wednesday
into the weekend with chances for showers and thunderstorms
somewhere in the area each day.
Near term through Wednesday
As of 130 pm Tuesday...
an upper level ridge axis will work its way into the forecast
area from west to east through the night. These rising heights
will keep precipitation at bay... However we do have a fair
amount of clouds across the forecast are as cirrus aloft and
some diurnal cumulus below that. These clouds have really
tempered temperatures so far today, but visible satellite shows
increasing sunshine is working in from the west, so did not
significantly cut back temperatures for the remainder of the
Surface high pressure slides to the east overnight, which will
turn winds around to southerly by morning. Have slightly non-
diurnal trend for hill tops across the south through the pre-
dawn. This will also bring a significantly warmer day on
Wednesday. The upper ridge axis starts heading east by late
afternoon which may allow a shower or storm to drift into the
far northern CWA by late afternoon evening.
Short term Wednesday night through Thursday night
As of 235 pm Tuesday...
for Wednesday, broad high pressure will sit just south of the area
which will help yield and weaken a frontal boundary trying to
slide into the area from the west. Still a chance for some light
showers, however it looks like most of the energy will be
suppressed from the ridging and drying of mid levels. With
the elevated instability that models hint at, there is still a
threat for thunderstorm activity which will mostly be diurnally
driven. Since instability will be relatively weak, not
expecting anything severe at this time.
Once the boundary moves past the area another more organized
frontal boundary moves closer on Thursday and a wave of energy
traverses around the clockwise flow of the ridge and impacts our
area. The precipitation shield ahead of the cold front
associated with a surface low over the great lakes will
overspread the area along with the aforementioned disturbance.
Rain showers and thunderstorms will be an issue in the afternoon
with a frontal boundary associated with the low providing
plenty of lift and moisture. Along with high instability (ml
cape 3000+ j kg) and shear over 40kt, storms are capable of
producing severe hail and damaging wind. SPC has our northern
half of the area in a marginal to slight risk for severe. Most
of the energy will ride along this clockwise path and exit
Long term Friday through Tuesday
As of 235 pm Tuesday...
Friday should be a relatively quiet weather day with high
pressure ridging and lack of any real ascent, however a diurnally
driven shower or storm cannot be ruled out with modest instability
expected. On Saturday, another system with a frontal boundary will
affect the area and provide ample moisture and instability for more|
potential thunderstorms. High pressure shifts slightly south
allowing multiple waves to rotate around to the area through
Sunday for more unsettled weather.
Models indicate a frontal boundary and associated surface low
pressure system to the west will hang around until the beginning
of the new week (mon-tues). On the other hand, models battle
each other with trying to build in high pressure sooner, while
the upper low loses focus and strength. Thus, confidence of
timing and strength of this system is low. There is a hint of
another system around the middle of next week. At any rate, with
models being in such disagreement there is very low confidence
on timing of these systems. Continuing heat with temperatures in
the upper 80's along with plenty of moisture and chances for
thunderstorms will be the moral of this long term forecast.
Aviation 19z Tuesday through Sunday
As of 130 pm Tuesday...
have a mix of cirrus and diurnal cumulus across the forecast
area, varying from few to broken as patches drift through. Did
include a period of MVFR in ckb and crw where the cumulus is
most widespread. OtherwiseVFR expected through the TAF period.
North to northeast winds will become southerly late tonight into
tomorrow as surface high pressure drifts to the east.
Forecast confidence and alternate scenarios through 18z Wednesday...
forecast confidence: high.
Alternate scenarios: timing of MVFR ceilings today may vary.
Experimental table of flight category objectively shows consistency
of WFO forecast to available model information:
h = high: TAF consistent with all models or all but one model.
M = medium: TAF has varying level of consistency with models.
L = low: TAF inconsistent with all models or all but one model.
Utc 1hrly 18 19 20 21 22 23 00 01 02 03 04 05
edt 1hrly 14 15 16 17 18 19 20 21 22 23 00 01
crw consistency h h h h h h h h h h h h
hts consistency h h h h h h h h h h h h
bkw consistency h h h h h h h h h h h h
ekn consistency h h h h h h h h h h h h
pkb consistency h h h h h h h h h h h h
ckb consistency h h h h h h h h h h h h
after 18z Wednesday...
widespread ifr conditions are not expected at this time.
Rlx watches warnings advisories
Synopsis... Mz rg
near term... Mz
short term... Jz
long term... Jz
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|Wise / Lonesome Pine, VA||18 mi||45 min||NNE 6||10.00 mi||Fair||77°F||59°F||54%||1018.6 hPa|
Wind History from LNP (wind in knots)
|1 day ago||SW||S||S||SW||SW|
|2 days ago||S||W||Calm||S||SW||S||S||S||Calm||Calm||Calm||S||SW||S||SW||S||S|
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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.
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Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Charleston WV (18,4,5,8)(on/off)  Help
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