Thursday, August13, 2020
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Marine Weather and Tides
Ironton, OH

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 6:42AMSunset 8:28PM Thursday August 13, 2020 9:51 PM EDT (01:51 UTC) Moonrise 12:21AMMoonset 3:10PM Illumination 24% Phase: Waning Crescent; Moon at 25 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 Ironton, OH
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location: 38.57, -82.66     debug


Area Discussion for - Charleston WV
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FXUS61 KRLX 132329 AFDRLX

AREA FORECAST DISCUSSION National Weather Service Charleston WV 729 PM EDT Thu Aug 13 2020

SYNOPSIS. A weak frontal boundary will remain stalled over the region through the rest of the work week. Weather remains unsettled through the upcoming weekend. Cold front Sunday night.

NEAR TERM /THROUGH FRIDAY/. As of 613 PM Thursday . Minor tweaks to hourly temperature and sky grids. Otherwise forecast on track.

As of 222 PM Thursday .

Latest surface analysis shows a quasi-stationary boundary is in place across southern OH and northern WV. This feature has provided enough of a focus for scattered convection across the mountains and more isolated activity across the lowlands so far this afternoon. With MLCAPE values around 1000-1500 J/kg and weak shear, any thunderstorm activity that develops should be pulse type convection. Thus, greatest concern for the remainder of the afternoon and evening is locally torrential downpours that could result in localized water issues given plenty of moisture with PWATs around 1.6 to 1.8 inches and slow storm motions. Since many areas in the mountains received 1 to 2 inches of rain yesterday, FFG values have dropped considerably across eastern portions of our forecast area and with convection mainly focused across the mountains once again today, WPC has a Slight Risk for Excessive Rainfall mainly across our mountainous counties and a Marginal Risk extending to areas near Interstate-79. Thus, will need to keep a close eye on this area through the remainder of the day but thunderstorm activity should remain isolated enough across the lowlands to mitigate a greater flood threat.

As instability wanes tonight, the majority of the precipitation activity should diminish but a few light showers may linger into the overnight hours across the mountains. Otherwise, another night of valley fog and/or low stratus appears to be possible as many areas decouple amid moist low levels. After fog lifts Friday morning, attention turns to an upper trough across the middle Ohio Valley that will slowly approach our area through the day. As a result, showers and storms will once again be expected across the area Friday afternoon and evening. Since this feature will provide better upper level support compared to recent days, this should allow for better precipitation coverage across the area. While chances for severe weather should remain low, a warm/moist environment will remain in place so additional downpours localized water issues will be possible once again.

SHORT TERM /FRIDAY NIGHT THROUGH SATURDAY NIGHT/. As of 205 PM Thursday .

Southwesterly flow increases Friday night in response to an approaching southern stream wave. This may assist in updraft organization of lingering afternoon convection keeping it going through the evening hours. Stronger forcing arrives by the morning hours Saturday with numerous showers and thunderstorm expected through the day. This will keep temps and surface based instability down a bit compared to previous days, but synoptic forcing, particularly on the left entrance quadrant of the H200 wind max will be more than sufficient to squeeze out very efficient rainfall across portions of the middle Ohio Valley in an environment of near climatological maximum precipitable water values with substantial warm cloud depth.

Should still have relatively high flash flood guidance here for the most part with limited rainfall expected Friday - but may begin to see some localized high water issues. Further south, a low level moist convergent axis could cause additional water issues for our southeastern counties where localized heavy rain last night and again tonight precedes it. Currently, WPC has the mountains outlooked as a slight risk for excessive rainfall (where confidence is higher that flash flood guidance will be lower) with a marginal risk over most of the remainder of the area.

LONG TERM /SUNDAY THROUGH THURSDAY/. As of 205 PM Thursday .

The 1.6 to 2.0 inch precipitable water plume finally departs to the east Sunday with passage of the trough axis/low level closed circulation making for a mainly dry morning. Will catch a glancing blow from a northern stream disturbance/surface cold front Sunday evening with some additional showers and thunderstorms possible. While mid-level lapse rates nor shear are particularly impressive, could see some better organized updrafts with at least some wind/hail potential with this should the front accelerate and come through in the late afternoon/evening, but for now looks more like a late evening/overnight passage.

Cooler and mainly dry weather prevails for Monday and Tuesday under northwesterly flow with surface dew points dipping back down toward the upper 50s feeling pretty good after the recent run of 70s. Sadly, heat and humidity looks to make a return by the end of the week along with a reintroduction of diurnal showers and storms.

AVIATION /00Z FRIDAY THROUGH TUESDAY/. As of 720 PM Thursday .

Isolated thunderstorms with brief IFR/LIFR conditions through at least 02Z. Then mainly VFR conditions until after 06Z when areas of IFR/LIFR fog and or stratus will develop, particularly in areas that received precipitation this afternoon and across parts of the higher terrain. KBKW may experience lower ceilings than currently forecast, with LIFR a possibility there. Overall have low confidence in a long duration of LIFR at KBKW, but will monitor for future updates.

After 14Z expect gradual improvement to VFR with light surface winds. However, after 18-20Z, sct showers and thunderstorms with brief restrictions will develop again.

FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 00Z SATURDAY . FORECAST CONFIDENCE: Medium.

ALTERNATE SCENARIOS: Timing, duration, and extent of fog overnight may vary from forecast. LIFR or worse ceilings at KBKW may develop particularly after 09Z.

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 22 23 00 01 02 03 04 05 06 07 08 09 EDT 1HRLY 18 19 20 21 22 23 00 01 02 03 04 05 CRW CONSISTENCY H H H H H H H H H H L L HTS CONSISTENCY H H H H H H H H H M L L BKW CONSISTENCY H H H H H H H M M M H M EKN CONSISTENCY H H H H H H H M H L L L 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 L H H

AFTER 00Z SATURDAY . Brief IFR in showers and thunderstorms Friday afternoon and evening. Another round of showers and thunderstorms will then be possible on Saturday with additional brief IFR restrictions.

RLX WATCHES/WARNINGS/ADVISORIES. WV . None. OH . None. KY . None. VA . None.

SYNOPSIS . JP/RG NEAR TERM . SL/RG SHORT TERM . JP LONG TERM . JP AVIATION . SL


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Huntington, Tri-State Airport, WV14 mi61 minSSE 310.00 miThunderstorm in Vicinity81°F71°F72%1014.7 hPa

Link to 5 minute data for KHTS

Wind History from HTS (wind in knots)
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Last 24hrCalmCalmSE5CalmCalmE3SE3CalmCalmCalmN3E3CalmCalmCalmCalmSW6N4N6NE7CalmE3CalmSE3
1 day agoCalmCalmCalmCalmNE3CalmCalmCalmCalmCalmCalmCalmN4N54SE54CalmN5N8NE4N4NE3NE3
2 days agoSW5SW4SW3S43SW3SW6S7W3NW3NW4CalmCalmCalmNW4NW6N33E3N6--CalmNE3N3

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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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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Wind Forecast for Charleston WV (21,6,7,8)
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Ground Weather Radar Station Charleston, WV
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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 numerous 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.