Saturday, May25, 2019

Marine Weather and Tides
Indianapolis, IN

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:20AMSunset 9:02PM Saturday May 25, 2019 9:33 AM EDT (13:33 UTC) Moonrise 1:03AMMoonset 11:21AM Illumination 60% Phase: Waning Gibbous; Moon at 21 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 Indianapolis , IN
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location: 39.78, -86.15     debug

Area Discussion for - Indianapolis, IN
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Fxus63 kind 251332
area forecast discussion
national weather service indianapolis in
932 am edt Sat may 25 2019

The near term section has been updated below.

Issued at 349 am edt Sat may 25 2019
a combination of upper waves and a surface front meandering across
the area will keep rain chances in the forecast for much of the next
week. Above normal temperatures will continue into early next week,
then near normal temperatures will return.

Near term rest of today
Issued at 920 am edt Sat may 25 2019
primary concern for the rest of today will be tracking chances for
showers and thunderstorms across central indiana. A weak outflow
boundary currently across central illinois will move into central
indiana shortly after 12 pm and is expected to be the primary
source of lift needed for afternoon convection. Current thoughts
are the best chances for thunderstorms will be after 2 pm with
isolated to scattered thunderstorms continuing through sunset.

Afternoon highs will be partially dependent on when and where
convection develop. Lowered high temperatures across central and
north central indiana where confidence is highest for storms to
account for this. Severe weather is possible with any longer
lasting thunderstorms with widespread severe not expected. Primary
hazards will be frequent lightning, small hail, and gusty winds.

Increased winds a bit this afternoon to have gusts as near 30 mph
with good mixing to 3000 ft expected.

Highs are expected to be in the low to mid 80s in central indiana
with high 80s in the southern portion of the area.

Short term (tonight through Monday night)
issued at 349 am edt Sat may 25 2019
models are close enough that the model blend initialization
was accepted for most items.

Will keep some low pops in this evening to account for any
convection that might pop up in instability, but most pops will be
overnight as a stronger upper wave moves through. Looks like the
best forcing will be across the northern forecast area. Moisture
will be plentiful, so went likely pops across roughly the north
third of the area.

Coverage of convection should diminish some Sunday morning as the
first upper wave moves out. However, another, stronger upper wave
will move in for Sunday afternoon. A weak surface low and a cold
front will accompany the wave. The forcing from these should be
enough to bring another round of rain to the area during the
afternoon, especially across the northern two thirds of the area.

Will go likely category pops Sunday afternoon for much of the area,
with chance pops south. Went with cooler temperatures Sunday, with
the clouds and rain around.

Pops will diminish Sunday night as the front slides south. However,
it will return north on Monday into Monday evening. Will have some
low pops as it returns north.

Cloud cover and mesoscale influences will have an impact on the
timing and coverage of rain on Sunday. If the Saturday night system
weakens quickly early Sunday, there could be several dry hours
before the next round of rain moves in. However, another scenario
would be rain from the overnight system lingers into late Sunday
morning and delays the afternoon convection.

These influences will also affect chances for severe weather on
Sunday. The faster the morning system dies out, the more instability
that could build for the afternoon to produce severe weather.

Long term Tuesday through Friday
Issued at 300 am edt Sat may 25 2019
models in good agreement that a southeastern ridge will provide dry
but very warm and humid weather for central indiana Tuesday.

However, more unsettled weather will take aim at the area Wednesday
and Thursday as a cold front approaches and moves through followed
by an upper trough. More seasonable temperatures and dry weather
will follow in the wake of the front.

Blend temperature trends look good. Less confident on pops as blend
looks a little too conservative Wednesday night and Thursday.

Aviation discussion for 251200z TAF issuance
Issued at 556 am edt Sat may 25 2019
good confidence inVFR conditions through 17z-19z. Then, expect a
few thunderstorms to pop up as the atmosphere destabilizes and a
weak upper wave moves through. Should see convection subside after
23z but more is possible after 03z-05z as a cold front approaches
from the northwest. Could see brief MVFR or worse in the
thunderstorms, otherwise should continue to seeVFR.

Southwest winds near 10 knots will increase 10 to 15 knots with
gusts to 20 knots or more after 17z. Could see higher gusts in
thunderstorms. Winds will then drop off to near 10 knots again after

Ind watches warnings advisories

Synopsis... 50
near term... White
short term... 50
long term... .Mk
aviation... Mk

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Indianapolis International Airport, IN7 mi40 minSW 1110.00 miMostly Cloudy77°F66°F71%1016.3 hPa
Indianapolis, Eagle Creek Airpark, IN8 mi41 minSW 710.00 miFair77°F66°F69%1016 hPa
INDIANAPOLIS, IN18 mi39 minSW 13 G 1910.00 miFair74°F68°F81%1016.9 hPa
Shelbyville Municipal Airport, IN23 mi41 minWSW 810.00 miFair77°F66°F71%1016.8 hPa

Wind History from IND (wind in knots)
Last 24hrE6S8SW9SW10
1 day agoSW7SW12
2 days agoSE5SE8S11S13S11S13

Tide / Current Tables for
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Weather Map and Satellite Images
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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 Indianapolis, IN (9,2,3,4)
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Ground Weather Radar Station Indianapolis, IN
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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 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 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.