Friday, September18, 2020
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Marine Weather and Tides
Martinsville, IN

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
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 7:29AMSunset 7:50PM Friday September 18, 2020 7:47 PM EDT (23:47 UTC) Moonrise 7:44AMMoonset 7:58PM Illumination 3% Phase: Waxing Crescent; Moon at 2 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 Martinsville, IN
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location: 39.39, -86.48     debug


Area Discussion for - Indianapolis, IN
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FXUS63 KIND 182252 AFDIND

Area Forecast Discussion National Weather Service Indianapolis IN 652 PM EDT Fri Sep 18 2020

UPDATE. The AVIATION Section has been updated below.

SYNOPSIS. Issued at 148 PM EDT Fri Sep 18 2020

Dry and pleasant fall weather is expected tonight through the weekend as strong high pressure moves through the Great Lakes and continues to influence Indiana's weather.

The strong . large high pressure system is expected to settle across the southeastern United States by early next week. This will result in dry weather of Indiana next week along with warmer temperatures.

NEAR TERM /Tonight/.

Issued at 148 PM EDT Fri Sep 18 2020

Surface analysis early this afternoon shows strong high pressure in place across Wisconsin . extending its influence south across Indiana. Northeasterly surface flow was in place across Indiana with a moderate pressure gradient resulting in some wind gusts of 10-20 mph. GOES16 shows clear skies across Indiana. Aloft water vapor shows strong ridging in place across the Western United States with a weak trough in place along Appalachia. This continues to result in a NW flow aloft with subsidence in place across Indiana.

Forecast soundings tonight continue to indicate a clear sky via a dry column and time sections agree. Subsidence is expected to remain across the area as the models suggest little overall change in the upper flow as the surface high slowly slides eastward. Surface pressure gradient appears to remain in play overnight and winds are not expected to go entirely calm However. clear skies and light winds will lead to ideal radiational cooling conditions. Ground temps remain near 60 degrees. Given this along with lows mainly in the 40s . but perhaps a few upper 30s along a LAF-OKK- MIE line . widespread frost not expected. Cannot rule out patchy frost where the temps fall in to the 30s . but ground temps should limit the patchy coverage to mainly elevated surfaces.

SHORT TERM /Saturday through Monday/.

Issued at 148 PM EDT Fri Sep 18 2020

More dry and pleasant weather is anticipated for this stretch as surface high pressure is expected to reach the eastern Great Lakes by Saturday Night before slowly moving to the New England states by Monday night. Models all the while expand the influence of the high south through the Ohio Valley and to the southeastern states. This results in generally N or NE flow across Indiana through the weekend . and the gulf will remain blocked, limiting humidity.

Aloft the strong ridging in place across the western United States is suggested by the models to progress to the plains on Saturday . before the ridge axis reached Indiana and the Great Lakes on Sunday night. This will keep Indiana within a favorable subsidence area through Monday. Forecast soundings and time heights also show a very dry column through Monday with unreachable convective temperatures. Thus sunny days and clear nights will be the way to go. Given the little change in the overall air mass through the period . but with slowly rising thicknesses starting on Sunday through Monday . will trends highs at or above the NBM . and trend lows at or below NBM.

LONG TERM (Monday Night Through Friday). Issued at 214 PM EDT Fri Sep 18 2020

The National Blend of Models initialization was accepted for most items.

Upper ridging will rule for the first half of the long term, with the area between a tropical system moving into the northeastern USA or southeast Canada and a shortwave trough to the west of the area. This will allow surface high pressure to continue the dry conditions.

As the upper trough swings through on Thursday, a weak surface front will move through the area. The best forcing will be north of the area where the trough is stronger. Also, there will be limited moisture to work with as the Gulf of Mexico is cut off from the area due to a system well to the south. Thus removed any low PoPs the initialization had and went dry.

High pressure will return on Friday behind the front, continuing the dry pattern. Temperatures will be above normal for much of the period,

AVIATION /Discussion for 190000z TAF issuance/.

Issued at 646 PM EDT Fri Sep 18 2020

VFR through the period. High pressure will keep clear and dry conditions across central Indiana. Wind gusts that were 20 kts or so through the afternoon are starting to drop off, and by 0z expect them to come to an end. Wind through the night should be out of the northeast around 4 to 8 kts, and should remain similar through the day on Saturday.

IND WATCHES/WARNINGS/ADVISORIES. NONE.

SYNOPSIS . Puma NEAR TERM . Puma SHORT TERM . Puma LONG TERM . 50 AVIATION . CP


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bloomington, Monroe County Airport, IN18 mi55 minNNE 710.00 miFair66°F35°F32%1023.3 hPa

Link to 5 minute data for KBMG

Wind History from BMG (wind in knots)
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Last 24hrN11N9N9NE7NE7N5N6N6N6N5N7NE7NE8NE8NE10NE10NE7
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1 day agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm45SE3NE5E75N11
G20
N9
2 days agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmE3CalmCalmS3S63W334Calm

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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Ground Weather Radar Station Indianapolis, IN
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