Saturday, February27, 2021
Privacy Policy
L-36.com

Marine Weather and Tides
Indianapolis, IN

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 7:18AMSunset 6:35PM Saturday February 27, 2021 5:30 AM EST (10:30 UTC) Moonrise 7:08PMMoonset 7:54AM Illumination 100% Phase: Full Moon; Moon at 15 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
    EDIT      (on/off)   Help


7 Day Forecast for Marine Location Near Indianapolis , IN
   Hourly   EDIT   Help
location: 39.78, -86.15     debug


Area Discussion for - Indianapolis, IN
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS63 KIND 270821 AFDIND

Area Forecast Discussion National Weather Service Indianapolis IN 321 AM EST Sat Feb 27 2021

UPDATE. The LONG TERM Section has been updated below.

SYNOPSIS. Issued at 153 AM EST Sat Feb 27 2021

A warm front will approach and settle across Indiana today . bringing dry weather for today. Tonight more rain will return as an upper level weather disturbance pushes through the Ohio Valley. This will be followed by a cold front pushing across Indiana on Sunday morning . bringing more chances for rain.

Dry weather is then expected to build across the area on Sunday afternoon through at least Wednesday as strong high pressure is expected to be moving slowly through the region. More chances for rain may return late next workweek. Look for above normal temperatures for most of the next seven days.

NEAR TERM /Today/. Issued at 153 AM EST Sat Feb 27 2021

Surface analysis early this morning shows high pressure in place over Florida and low pressure in place over the upper midwest. This was resulting in a SW surface flow across Indiana. GOES16 shows a stream of tropical moisture . streaming across TX to Indiana and Ohio. Radar shows some scattered light rain showers across the area pushing across Indiana within this flow.

Models today suggest that the short wave and isentropic lift currently responsible for this morning early rain will exit Central Indiana by 12Z HRRR allow this wave to exit east. while keeping the deeper moisture with the previously mentioned upper flow farther south across TN and eastern KY. Forecast soundings and time heights through the day trend toward a dry column through the day with subsidence in place. Thus will trend toward a dry forecast today . along with partly cloudy skies. Given our expected SW flow and ongoing warm air advection will trend highs at or above the NBM.

SHORT TERM /Tonight through Monday Night/. Issued at 153 AM EST Sat Feb 27 2021

GFS suggests strong Isentropic lift returns across Central Indiana tonight By 06Z Sunday. the 295K GFS isentropic surface shows excellent up glide with specific humidities over 6 g/kg. Forecast soundings show deep saturation arriving across the area at that time with warm air advection within the lower levels and pwats surging over 1 inch. Further support is seen within the upper levels as a short wave approaches Indiana within the tropical plume of moisture that will be in place across the Ohio Valley. Finally a favorable LLJ appears to be moving across Indiana and KY . around 70 knts through the night. Thus confidence is high for rain showers overnight . especially across the southern parts of the forecast area where dynamics are best. Will trend highest pops there . trending toward less pops farther north. Given the expected clouds and precip will trend lows at or above the NBM.

As the short wave and LLJ departs on sunday morning the 295K Isentropic surface shows lift is lost. Meanwhile surface low pressure will be moving through the Great Lakes and the GFS and Nam suggest as cold front will be sweeping across Indiana through the Day. This still will result in some rain chances early on ahead of the cold front on Sunday morning . however the overall theme of the day will be trending toward drying. Westerly winds in the wake of the front will arrive in the afternoon along with subsidence as suggested with the forecast soundings. Thus will stick close to the NBM pops during the AM hours . but trend toward a dry forecast by afternoon in the wake of the front.

On Sunday night through Monday night strong high pressure over the plains states is depicted to build across Indiana and the Great Lakes as ridging aloft over the northern plains provides lee side subsidence to the upper midwest and southern Great Lakes. Forecast soundings show a very dry column through this period. Thus will trend toward partly cloudy weather on Sunday night through Monday night and will not stray far from the NBM on Temps.

LONG TERM /Tuesday through Friday/. Issued at 320 AM EST Sat Feb 27 2021

At least moderate confidence continues for a pleasant mid to late week as mid-level heights rise into a zonal/flat ridge pattern over most of the US. Generally dry conditions are expected as weather makers consequently retreat to southern Canada . or stay mainly south of central Indiana. Slight chances to chances of light rain or a rain/snow mix exist for the PM hours Tuesday as a potential system crosses the Tennessee Valley, although confidence in precipitation is low.

A greater rain potential surrounds the Thursday Night-Friday time frame when (only) the operational GFS still brings a rather slow cut-off system from Colorado to the southeastern US . which could place ample rainfall over our region courtesy a fetch straight out of the warming Gulf. Most of the GFS ensembles have light/moderate rainfall across Indiana, although the members with strongest phasing keep rain south of the CWA . and the overall trend since yesterday appears to be for weaker gradients/QPF across our realm. All considered, the Blend's slight chance POPs along southern counties were accepted for the time being.

Otherwise the period should be a solid start for March with generally modest winds under partly to mostly clear skies. Temperatures will moderate from near normal to above normal values.

AVIATION /Discussion for 270600Z TAF Issuance/. Issued at 1142 PM EST Fri Feb 26 2021

IMPACTS: Ceiling restrictions will develop quickly this evening with widespread IFR/LIFR ceilings through Saturday morning. Periodic light showers are possible overnight with MVFR visibilities at times. Improvements back to VFR by midday Saturday through the afternoon. Low ceilings will return around or just after the end of the forecast period Saturday night in steady rainfall.

DISCUSSION: Lower ceilings are rapidly advecting into central Indiana from the southwest and should encompass the terminals by mid to late evening with IFR/LIFR levels for the overnight and Saturday morning. Scattered light rain showers will drift across the terminals tonight as well with periodic MVFR visibilities.

Deeper moisture will quickly shift east Saturday morning as a small are of high pressure expands into the region with drier air and subsidence. Clouds will scatter by midday with sunshine for the afternoon. The high will quickly shift off to the northeast Saturday evening with deep moisture returning with a warm front from the south. Steady rain and low ceilings will advect back across all but KLAF around or shortly after midnight Saturday night.

IND WATCHES/WARNINGS/ADVISORIES. NONE.

SYNOPSIS . Puma NEAR TERM . Puma SHORT TERM . Puma LONG TERM . AGM AVIATION . Ryan


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Indianapolis International Airport, IN7 mi36 minW 69.00 miOvercast41°F40°F96%1013.3 hPa
Indianapolis, Eagle Creek Airpark, IN8 mi37 minWNW 49.00 miOvercast41°F40°F96%1013.1 hPa
INDIANAPOLIS, IN18 mi35 minW 77.00 miOvercast40°F40°F99%1012.9 hPa
Shelbyville Municipal Airport, IN23 mi37 minSW 54.00 miFog/Mist44°F40°F85%1013.1 hPa

Link to 5 minute data for KIND

Wind History from IND (wind in knots)
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
Last 24hrE8E11E10E9E9E9E13E16E15E11SE13SE12SE16SE16
G24
SE13SE11SE12
G21
SE9S6S7SE6S6W5W6
1 day agoNW6NW5W4SW3CalmCalmW75NW11
G16
NW9
G21
NW9NW8NW7N6N6NW6N5N5NE5NE5NE6NE4E5E7
2 days agoS11S11SW9SW14
G22
SW18
G25
SW16
G25
SW17
G24
W16
G20
W14W13W18
G23
W11NW12
G21
NW14NW13NW9NW8NW6N6N4N5N6N5N4

Tide / Current Tables for
   EDIT   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map
       (on/off)   Help Weather Map
wmap_A
GEOS Local Image of    EDIT
NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
Link to Loop

Other links: GEOS-West     Contential US     Full GOES-East
Ground Weather Radar Station




Cookie Policy:
This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. Google supplies the ads on this site. Because I do not track who you are, I cannot customize how these ads are served. They may be personalized to improve the ad experience. If you do not want personalized ads, please adjust the settings on the Google site HERE. NOTE: The best I can determine, this site is not subject to CCPA but I am doing my best to comply anyway.
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 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.