Saturday, April21, 2018 L-36.com


Marine Weather and Tides
Hamilton, OH

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
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.

Sunrise 6:49AMSunset 8:23PM Saturday April 21, 2018 3:34 AM EDT (07:34 UTC) Moonrise 10:33AMMoonset 12:30AM Illumination 34% Phase: Waxing Crescent; Moon at 6 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 Hamilton, OH
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location: 39.4, -84.57     debug


Area Discussion for - Wilmington, OH
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Fxus61 kiln 210540
afdiln
area forecast discussion
national weather service wilmington oh
140 am edt Sat apr 21 2018

Synopsis
An expansive area of high pressure will slowly drift east across
the great lakes and ohio valley through the weekend. This will
bring dry conditions and gradually warming temperatures.

Low pressure will bring a chance of rain on Monday night into
Tuesday, with rain remaining possible through the week as an
upper-level trough moves into the region.

Near term until 6 am this morning
A few cirrus clouds skirting western CWA this evening will see
them increase in coverage overnight, lowering slightly over
northern portions of the CWA early Saturday. An expansive area
of surface high pressure extending from the great lakes to the
mid-atlantic states will remain over northern ohio and keep a
light and generally northeast wind over the cwa. As the light
winds and and generally clear skies prevail, a good setup for
radiational cooling conditions is expected overnight.

However, there may be some thickening of high clouds, and winds
may not go completely calm. A tiered approach has been taken to
the frost freeze headlines, as the warmer starting point will
keep most of the areas from reaching lower than 32 degrees.

There are also some thoughts that frost may not be widespread in
the more marginal temperatures (32-36) due to a very dry airmass
and winds of around 5 knots.

Short term 6 am this morning through 6 pm Sunday
On Saturday, surface high pressure will continue drifting east
across the great lakes, keeping light flow in place over the
ohio valley. There will be a continued increase in high and mid
level clouds, as the 500mb ridge flattens and isentropic ascent
aloft occurs. An area of low pressure in the southern plains is
on track to move south of the ohio valley, and as a result, the iln
forecast area should remain on the north side of a surface
boundary -- with winds remaining generally easterly to
northeasterly through Sunday morning (and beyond).

Despite the unfavorable winds, another day of (filtered) sun
will allow for temperatures to warm into the upper 50s to lower
60s on Saturday. This remains below normal, but only by 4-8
degrees, which seems like a small departure compared to much of
the past month and a half. As clouds increase, min temps on
Sunday morning should range from the upper 30s to lower 40s --
likely with no significant chance for frost or freeze in the
current program area.

Long term Sunday night through Friday
Models continue to be consistent in pushing an upper level low out
of southern plains and into the lower mississippi valley on Sunday.

Any precipitation with the system stays to the south for Sunday. 12z
model rh fields are suggesting that the cloud cover on Sunday might
be a less than forecast yesterday. This will allow temperatures to
be a few degrees warmer, with highs ranging from around 60 in the
north to the mid 60 and possibly the upper 60s in the far south.

Upper low continues to shift eastward on Monday. While the
gfs ECMWF canadian bring some pcpn into northern kentucky late
Monday, the NAM is the outlier and pushes a band of QPF all the way
through the fa. Will lean towards the majority forecast and will
throw out the NAM solution. Kept slight pops in the south to cover
the uncertainty. Expect highs on Monday to be in the mid 60s.

Models left the upper low out of the tennessee valley beginning
Monday night. As this occurs scattered showers should lift into the
region. Kept chance pops through Tuesday night to cover the
situation. Temperatures will be slightly below normal Tuesday and
Wednesday with highs in the upper 50s.

For the last half of the week, the extended models continue to show
differences in the strength of h5 S W dropping out the upper
mississippi valley. The GFS and canadian are much stronger than the
ecmwf with this feature. Ran a blend to cover the uncertainty.

Another S W enters the ohio valley on Friday keeping the unsettled
weather pattern across the region.

Aviation 06z Saturday through Wednesday
Surface high pressure will remain across the southern great
lakes through tonight. High and mid level clouds will spread
down across the area through the day butVFR conditions are
expected to prevail through the TAF period.

Outlook... MVFR ceilings will be possible Monday night into
Tuesday.

Iln watches warnings advisories
Oh... Frost advisory until 9 am edt this morning for ohz062-063-071-
072-078>082-088.

Freeze warning until 9 am edt this morning for ohz064-065-073-
074.

Ky... Frost advisory until 9 am edt this morning for kyz097>100.

In... None.

Synopsis... Hatzos
near term... Franks
short term... Hatzos
long term... Sites
aviation... Jgl


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Butler County Regional Airport, OH4 mi41 minN 010.00 miFair35°F28°F76%1031 hPa
Hook Field Municipal Airport, OH13 mi39 minN 010.00 miFair35°F31°F88%1030.8 hPa
Cincinnati, Cincinnati Municipal Airport Lunken Field, OH22 mi41 minN 010.00 miFair39°F37°F93%1030.7 hPa
Dayton, Dayton-Wright Brothers Airport, OH23 mi41 minENE 510.00 miFair42°F24°F49%1030.1 hPa

Wind History from HAO (wind in knots)
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Last 24hrNW5CalmW3CalmCalmN5CalmSE5--CalmNE75N5NE7NE6E6N3N3NE3CalmCalmCalmCalmCalm
1 day agoW9W11
G20
W13
G20
W11
G19
W10
G15
NW12NW9N12
G17
N11NW12
G18
N9N9
G17
NW9NW12
G18
NW10NW10NW8NW4W5NW7NW9NW3N5NW5
2 days agoE4NE3E4E5E5E5E7E7SE6443SE4W4E3NE7NW11
G27
W10NW20
G27
W16
G26
NW18
G25
W11W14
G21
NW14
G20

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 Midwest    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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Wilmington, OH (3,6,7,8)
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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.