Friday, December15, 2017 L-36.com


Marine Weather and Tides
Powell, OH

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
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.

Sunrise 7:45AMSunset 5:08PM Friday December 15, 2017 6:47 PM EST (23:47 UTC) Moonrise 5:08AMMoonset 3:48PM Illumination 6% Phase: Waning Crescent; Moon at 27 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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LEZ144 Lake Erie Nearshore Waters From Maumee Bay To Reno Beach Oh- Lake Erie Nearshore Waters From Reno Beach To The Islands Oh- Lake Erie Nearshore Waters From The Islands To Vermilion Oh- 325 Am Est Fri Dec 15 2017
.small craft advisory in effect from this afternoon through Saturday morning...
Today..Southwest winds 10 to 15 knots becoming west and increasing to 15 to 25 knots. A chance of snow showers this afternoon. Waves 2 feet or less building to 3 to 5 feet. Waves occasionally around 6 feet.
Tonight..West winds 15 to 25 knots. A chance of snow showers in the evening. Waves 3 to 5 feet. Waves occasionally around 6 feet.
Saturday..West winds 15 to 20 knots becoming south 5 to 15 knots. A chance of snow showers. Waves 1 to 3 feet subsiding to 1 foot or less.
Saturday night..Southeast winds 5 to 10 knots becoming south. Mostly cloudy in the evening, then becoming partly cloudy. Waves 1 foot or less. SEe lake erie open lakes forecast for Sunday through Tuesday. The water temperature off toledo is 33 degrees...off cleveland 41 degrees and off erie 37 degrees.
LEZ144 Expires:201712151600;;918967 FZUS51 KCLE 150825 NSHCLE Nearshore Marine Forecast National Weather Service Cleveland OH 325 AM EST Fri Dec 15 2017 For waters within five nautical miles of shore Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. LEZ142>144-151600-

7 Day Forecast for Marine Location Near Powell, OH
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location: 40.17, -83     debug


Area Discussion for - Wilmington, OH
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Fxus61 kiln 152344
afdiln
area forecast discussion
national weather service wilmington oh
644 pm est Fri dec 15 2017

Synopsis
Low pressure will move east through the great lakes tonight, as
high pressure builds into the southeastern states. This will
allow for southwesterly winds and gradually warming temperatures
through the weekend, with chances for rain on Sunday.

Near term until 6 am Saturday morning
A wide curved band of stratocumulus clouds is moving through
the iln cwa, roughly along the axis of a weak surface trough.

Steep lapse rates underneath the cloud deck (about 2500-3000
feet) have promoted some slightly gusty winds (20-25 knots at
most) and a few patches of light snow moving through the area.

This is mostly flurries, with visibilities reported by surface
observation sites generally at 4sm or above. The overall lack of
moisture would point away from any chance of accumulating snow,
outside of maybe a tenth or two (at most) in central ohio over
the next couple hours.

After the main band of low clouds moves through, a gradual
decrease in low level moisture is expected tonight, though some
700mb moisture is expected to advect in on the pivoting
nw-to-wnw flow. Persistent ssw surface flow will keep
temperatures from falling too far tonight -- likely only a few
degrees cooler than current values as of 3pm. Min temps are thus
expected to be in the middle to upper 20s.

Short term 6 am Saturday morning through Saturday night
By Saturday morning, mid-level moisture will already be
beginning to move northeast of the iln forecast area, as surface
high pressure becomes more established over the southeastern
states. As this occurs, mid-level ridging will be moving
gradually toward the ohio valley, though the ridge will be
dampening as it translates eastward. Another round of moderate
southwesterly flow will occur, though flow aloft turns quickly
to the W and wnw, with a strong dry inversion near 900mb
limiting gust potential into the 15-25 mph range (mainly
Saturday afternoon). Nonetheless, this warm advection will bring
a notable upward bump in temperatures on Saturday. There will be
a strong temperature gradient across the CWA thanks in part to
the departing clouds in the north, but MAX temps should
generally range from the lower 40s (north) to near 50 (south).

There will be some return of cirrus (and maybe some mid-level
clouds) late Saturday night into early Sunday morning, but dry
conditions are expected through the end of the short term
forecast period.

Long term Sunday through Friday
Embedded mid level shortwave to eject northeast across the area and
deamplify as it encounters the mean ridge. On Sunday moisture
increases from the SW with this system but with it weakening only
expect 1 to 2 tenths of an inch of pcpn. In WAA pattern pcpn will be
mainly rain with only a low chance of a mix at the onset. Pcpn
diminishes Monday with this feature shifting off to the east. Expect
highs on Sunday from 40 to 45 and from the lower 40s northeast to 50
southwest Monday.

Shortwave tracking through the great lakes and weak front will
provide a slight chance of a shower Tuesday. Above normal
temperatures to continue Tuesday with highs ranging from the the
upper 40s north to the lower 50s south.

Model solutions diverge at mid week but will follow continuity and
keep forecast dry Wednesday with surface high pressure building into
the region. Temperatures close to normal next Wednesday with highs
from the upper 30s north to the mid upper 40s south.

Models differ on handling next surface low which tracks through the
area at the end of the week in split flow regime. Will hold off pcpn
until late Thursday afternoon and then increase pops Thursday night
with approach of surface front. On the warm side of this system
expect Thursdays highs from the upper 40s northeast to the mid 50s
southwest.

Pcpn to diminish from NW to SE late Friday into Friday night in the
wake of the front. Pcpn may mix with or change to snow prior to
ending. Highs to range from lower 40s NW to the lower 50s se
Friday.

Aviation 00z Saturday through Wednesday
Ceilings starting out near the 3000 ft threshold for MVFR will
begin to lift overnight as high pressure and drier air wedge in
from the south.VFR will then continue through the end of the
taf period as low clouds scatter leaving cirrus as sky cover
according to model soundings. Winds staying around 10 knots
tonight will back to southwest as the high moves in, with gusts
to 20 knots Saturday afternoon.

Outlook... MVFR ceilings and visibilities are possible from
Sunday night through Monday night.

Iln watches warnings advisories
Oh... None.

Ky... None.

In... None.

Synopsis... Hatzos
near term... Hatzos
short term... Hatzos
long term... Ar
aviation... Coniglio


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
HHLO1 - Huron Light, OH 88 mi48 min WSW 11 G 17 26°F 1011.5 hPa (+1.7)
MRHO1 - 9063079 - Marblehead, OH 96 mi48 min WSW 8.9 G 15 27°F 1013.3 hPa (+1.8)20°F

Wind History for Marblehead, OH
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Last
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SW4
G7
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SW6
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N5
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G16
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G17
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G15
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SE6
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G24
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G30
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W7
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W6
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NW25
G31
NW23
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G27
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G29
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G27
SW5
G10
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G8
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G11
S6
G11
SW5
G11
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G11
SE5
G12
SE7
G14
SE9
G16
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G15
SE6
G15

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Columbus, Ohio State University Airport, OH7 mi55 minW 1210.00 miOvercast29°F21°F72%1016.2 hPa
John Glenn Columbus International Airport, OH13 mi57 minWSW 14 G 1910.00 miOvercast31°F19°F64%1016.3 hPa
Marysville Union County Airport, OH19 mi53 minW 910.00 miOvercast28°F21°F74%1014.9 hPa
Columbus, Bolton Field Airport, OH20 mi63 minWSW 11 G 1610.00 miOvercast28°F21°F74%1015.6 hPa
Rickenbacker Air National Guard Base, OH24 mi73 minW 1010.00 miOvercast30°F19°F66%1015.6 hPa

Wind History from OSU (wind in knots)
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Last 24hrNW4N3CalmCalmN3N3CalmCalmCalmCalmCalmS4SW4SW4SW5SW8SW12SW14
G18
SW14
G24
SW15
G23
SW15W13
G20
W14
G21
W12
1 day agoS7S8S5SW12W23
G33
W19
G29
W23
G32
W22
G32
NW16
G29
NW15
G23
NW14N14NW8NW7NW10NW7N7N11N4NW5NW5N3CalmCalm
2 days agoNW13W12W10NW8NW7W8W9W9W12W10W7W6SW6SW6S8S9S7S11S11SE12SE14S16
G22
S13S12

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 Wilmington, OH (18,4,5,8)
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Ground Weather Radar Station Wilmington, OH
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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.