Friday, August18, 2017 L-36.com


Marine Weather and Tides
Mansfield, 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 6:42AMSunset 8:24PM Friday August 18, 2017 11:41 PM EDT (03:41 UTC) Moonrise 2:11AMMoonset 5:06PM Illumination 10% Phase: Waning Crescent; Moon at 26 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- Lake Erie Nearshore Waters From Vermilion To Avon Point Oh- 345 Pm Edt Fri Aug 18 2017
Tonight..West winds 10 to 15 knots. A slight chance of showers and Thunderstorms late. Waves 2 to 4 feet subsiding to 1 to 3 feet.
Saturday..Southwest winds 5 to 10 knots becoming west. A chance of showers and Thunderstorms. Waves 2 feet or less.
Saturday night..West winds less than 10 knots becoming southwest. Mostly clear. Waves 1 foot or less.
Sunday..Southwest winds less than 10 knots becoming south. Sunny. Waves 1 foot or less. Winds and waves higher in and near Thunderstorms. SEe lake erie open lakes forecast for Monday through Wednesday. The water temperature off toledo is 76 degrees...off cleveland 74 degrees and off erie 74 degrees.
LEZ144 Expires:201708190215;;585377 FZUS51 KCLE 181945 NSHCLE Nearshore Marine Forecast National Weather Service Cleveland OH 345 PM EDT Fri Aug 18 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>145-190215-

7 Day Forecast for Marine Location Near Mansfield, OH
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location: 40.77, -82.57     debug


Area Discussion for - Cleveland, OH
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Fxus61 kcle 190125
afdcle
area forecast discussion
national weather service cleveland oh
925 pm edt Fri aug 18 2017

Synopsis
Weak high pressure will slide across the ohio valley this
this evening and early tonight. Towards morning, weak low
pressure associated with a disturbance aloft will drop across
the lower great lakes and ohio valley on Saturday. High pressure
will build across the great lakes Sunday, then move east of the
area on Monday.

Near term through Saturday night
As expected most of the diurnal clouds have dissipated. Some
clouds continue to impact the immediate lakeshore areas east of
cle. These too should lift to the north leaving a period of
mostly clear to partly cloudy skies. Mid level clouds will begin
to arrive from the west later tonight. Much of the new guidance
coming in including the latest hrrr and SREF suggest that our
precip forecast may be overdone for Saturday. Have gone ahead
and lowered pops into the chance category and have removed all
likely wording. This seems reasonable as coverage should be no
more than scattered in coverage with chances at any given
location limited to just a few hours. Best chances remain at the
southeast end of the area during the afternoon. No changes to
temps as dewpoints at the surface continue to slowly come down.

Previous... Satellite shows clouds thinning across northern ohio
and nwrn pa as weak high pressure and drier air move in and the
low north of the area continues to pull northeast. Expecting
this trend to continue into the evening with clearing for late
evening and the early overnight. Towards morning however models
show another weak low moving in from the west supported by a
developing upper level trough. Models differ graphically on
cloud cover and associated moisture but both the NAM and GFS do
print out likely pops for the event which seems reasonable given
the upper support. Will not however be an all day rain...

believe the best chance for the western half of the area is from
dawn through 16z or so shifting east in the afternoon as drier
air again moves into the west. Saturday night should be dry
outside of a possible lingering shower for an hour or so in the
evening. Will have only a 20 pop for that possibility. Night
temps near normal. Saturday temps near to a couple degrees below
normal.

Short term Sunday through Monday night
High pressure will be over the area providing dry wx Sun thru
mon before moving off to the east for Tue to allow a cold front
to drop SE into the area by Tue evening. Moisture is limited
with this front so will keep pops in chc category. Near normal
temps on Sun will warm above normal for Mon and tue.

Long term Tuesday through Friday
Broad troughiness will move east across the eastern half of canada
by mid week causing a fairly strong area of low pressure to move
east northeast across the central and eastern canada as well. A
strong cold front will push east across the area Tuesday night
ushering in some colder air to the local area from the north. The
front will bring showers and thunderstorms to the area Tuesday night
and push east of the area Wednesday morning. There the is the
possibility for some lake effect rain showers following the frontal
passage Wednesday into Thursday. Strong cold air advection will
likely cause waterspouts to develop provided winds are not too
strong to shear them apart. Strong high pressure at the surface
will build east across the great lakes region through the latter
half of the week even though upper level troughiness will persist
through this period. Cold air advection will begin to wane by the
end of the forecast period as the high pressure begins to move east
of the area.

Aviation 00z Saturday through Wednesday
Things remain quiet with lot's of diurnal looking cumulus
floating about. These clouds should go away for a few hours
before mid level clouds begin to spread back east across the
local area overnight. Precip chances will hold off till around
12z in the west and till late in the morning or even early
afternoon across the eastern end of the area. The new guidance
coming in is backing off on precip coverage from earlier models
runs. So will back off on thunder chances in the new tafs. Most
locations will have a 3 or 4 hour of window for precip during
the period with it dry otherwise. Winds have started to come
down and the gustiness should end after sunset. The flow will be
mainly west or southwest under 10 knots.

Outlook... Non-vfr possible in scattered showers tstms on
Tuesday.

Marine
High pressure ridging moving into the lake will cause the winds to
diminish some tonight and allow the SCA conditions to end. A trough
will push east across the lake Sat into early Sat night causing the
winds to waver from SW to west. High pressure moves over the lake
for Sun thru Mon to produce light mostly south to southwest winds.

A cold front is expected to push SE across the lake Tue night
causing SW winds to increase to 10 to 20 knots on Tue ahead of the
front, veering to NW by the end of the night and continuing wed.

Cle watches warnings advisories
Oh... Beach hazards statement until 4 am edt Saturday for ohz011-012-
089.

Pa... Beach hazards statement until 4 am edt Saturday for paz001.

Marine... Small craft advisory until 4 am edt Saturday for lez146>149.

Synopsis... Tk
near term... Tk kubina
short term... Adams
long term... Adams oudeman
aviation... Kubina
marine... Adams


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
HHLO1 - Huron Light, OH 44 mi41 min SW 6 G 7 71°F 1011.2 hPa (+1.4)
MRHO1 - 9063079 - Marblehead, OH 54 mi41 min W 8.9 G 13 74°F 1012.3 hPa (+1.4)65°F

Wind History for Marblehead, OH
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Mansfield - Mansfield Lahm Regional Airport, OH5 mi49 minWSW 410.00 miFair68°F62°F81%1012.3 hPa

Wind History from MFD (wind in knots)
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Last 24hrSW8SW7SW8SW7SW8SW6SW5SW8SW8SW8W12
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1 day agoSE6SE6SE7SE7SE7S6S7S7S9S6S10S9S9S12S13
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2 days agoCalmNE4E3E5E4E3E4E5E4E9E7SE6E5E4E5SE63E5E5E6SE5SE5CalmSE3

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
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IR Satellite Image from GEOS
east_satellite

GOES Local Image of GreatLakes    EDIT
Geos

Wind Forecast for Cleveland, OH (23,6,7,8)
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Ground Weather Radar Station Cleveland, 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.