Thursday, May24, 2018 L-36.com


Marine Weather and Tides
Hammond, IN

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 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.

Sunrise 5:20AMSunset 8:13PM Thursday May 24, 2018 8:39 PM CDT (01:39 UTC) Moonrise 3:12PMMoonset 3:03AM Illumination 77% Phase: Waxing Gibbous; Moon at 10 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
LMZ743 Calumet Harbor To Gary-gary To Burns Harbor- Burns Harbor To Michigan City- 300 Pm Cdt Thu May 24 2018
Tonight..East winds around 10 kt this evening becoming south overnight. Clear. Waves 1 ft or less.
Friday..South winds 5 to 10 kt. Sunny. Waves 1 ft or less.
Friday night..Southwest winds 10 to 15 kt. Chance of showers and Thunderstorms. Waves 1 to 2 ft.
Saturday..Southwest winds 5 to 10 kt becoming north in the afternoon. Slight chance of showers and Thunderstorms. Waves around 1 ft.
LMZ743 Expires:201805250330;;468360 FZUS53 KLOT 242000 NSHLOT NEARSHORE MARINE FORECAST National Weather Service Chicago/Romeoville IL 300 PM CDT Thu May 24 2018 For waters within five nautical miles of shore on Lake Michigan Waves are provided as a range of significant wave heights, which is the average of the highest 1/3 of the waves, along with the average height of the highest 10 percent of the waves which will occasionally be encountered. LMZ743>745-250330-

7 Day Forecast for Marine Location Near Hammond, IN
   Hourly   EDIT   Help
location: 41.62, -87.49     debug


Area Discussion for - Chicago, IL
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus63 klot 242328
afdlot
area forecast discussion
national weather service chicago romeoville, il
628 pm cdt Thu may 24 2018

Short term
219 pm cdt
through Friday night...

summer-like warmth will be the main weather story to finish out
the week. Scattered thunderstorm chances will increase late in the
day Friday, especially across western portions of the forecast
area.

Surface high pressure continues to retreat off to the southeast
across the upper ohio valley and mid-atlantic regions this
afternoon. Temperatures have warmed into the low-mid 80's in most
areas, with a lake breeze spreading inland across far northeast il
as noted in ord tdwr imagery. The above normal temps, combined
with modest south gradient winds tonight, will result in a mild
overnight with lows in the 60's expected in most spots under
mainly clear skies.

Mid-level short wave trough over the northern high plains will
lead to some flattening of the upper level ridge across the area
Friday. Within the approaching trough, guidance hints at at least
some increased mid high cloud cover during the day, in association
with weaker vortcity convective debris spreading into the area
from parts of iowa missouri. Little focus for renewed convective
development is noted across our area through much of the day
however, with the primary low level instability axis located west
of the mississippi river ahead of the cold frontal trough trailing
from surface low pressure along the canadian border. Mid high
cloud cover may modulate temp rise during the day, though some sun
is expected and with 850 mb temps warming to around +16c and 925
mb temps progged +22 23c, highs are once again expected to reach
the mid-upper 80's.

Several high-res cams indicate thunderstorm development over
portions of the upper mississippi valley Friday afternoon, with a
resultant MCS building south-southeastward along the eastern
periphery of the stronger low level instability axis into
northwest north central il into early Friday evening. The 3km wrf,
nmm and arw all depict this progression. Deep layer vertical wind
shear is pretty weak however, with 0-6 km bulk shear generally 20
kts or less over northwest il, and diminishing farther
south east. Thus while storms may push into northern il Friday
evening, and could present some local severe wind threat for a
time, the overall trend should be for these storms to weaken with
loss of stronger diurnal instability and progression away from
better shear. SPC has maintained a marginal day 2 severe risk
across roughly the northwest half of the lot CWA for this.

Ratzer

Long term
253 pm cdt
Friday night through Thursday...

the very warm conditions continues to be the main weather story
for the holiday weekend and into next week.

The upper level ridge is expected to rebuild across the central
conus on Saturday and remain in place across the area through
early next week. Overall, this will result in rather warm and
somewhat humid conditions across the area during the period.

Precipitation chances will also be limited through early early
next week with this upper ridge overhead. Expect temperatures each
day to top out in the upper 80s to lower 90s, with heat indices
climbing into the middle 90s by Sunday. Areas along the shores of
lake michigan will likely be the only areas to see some cooler
afternoon temperatures as lake breezes are likely to develop each
afternoon due to the light west-southwest synoptic winds over the
area.

The chances for thunderstorms will return to the area by midweek
as the weather pattern becomes a bit more active. Overall, a
tropical system likely to impact portions of the gulf coast
during the early part of the week. This feature will help lock
the upper ridge in place over the area for a few days early next
week. Its still a bit uncertain if we will see any precipitation
from this system locally. However, during the mid to late part of
the week it appears that the upper ridge will break down across
the area an allow a more active belt of westerlies to develop
across the central conus. So either way it does appear that some
storms will be possible at times later in the week.

Kjb

Aviation
For the 00z tafs...

vfr conditions with generally light winds are expected through the
period. Light SE winds this evening will transition to persistent
ssw winds Friday. Slightly stronger winds (10-15kts) than today
should keep the lake michigan lake breeze east of ord mdw dpa Friday
afternoon. Near to slightly beyond the end of forecast period, there
is a chance for a decaying southward-propogating thunderstorm
complex to cross northern il after 00z Saturday, nearing rfd around
02-05z, and approaching ord mdw dpa within an hour or two of 06z.

Confidence on this complex reaching ord mdw is very low, so mention
was not included with this TAF issuance.

Kluber

Marine
148 pm cdt
a period of modestly breezy south-southwest winds of 20 to 25 kt
is expected across lake michigan tonight through Friday night, as
high pressure slides off to the southeast across the upper ohio
valley and mid-atlantic region. An area of low pressure will move
across northwest ontario and the far northern lakes Saturday,
which will trail a weakening cold front across the upper midwest.

The gradient will weaken and become baggy in the vicinity of this
cold frontal trough, with winds becoming light and somewhat
variable in direction at times as the front becomes diffuse over
the lake into Sunday. South to southeast winds will re-establish
across the upper midwest Monday and Tuesday, as another low
develops across the northern plains and tracks north of the lakes.

Thunderstorms may affect portions of the lake later Friday and
Friday night, and again late Saturday and Saturday evening.

Ratzer

Lot watches warnings advisories
Il... None.

In... None.

Lm... None.

Visit us at http: weather.Gov chicago (all lowercase)
follow us on facebook... Twitter... And youtube at:


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CMTI2 - 9087044 - Calumet, IL 8 mi52 min ESE 8 G 11 67°F 1016.8 hPa56°F
JAKI2 12 mi100 min SSE 1.9 G 4.1 67°F
CNII2 17 mi40 min S 1 G 5.1 67°F 52°F
BHRI3 - Burns Harbor, IN 18 mi60 min E 11 G 12 68°F 1017.6 hPa
OKSI2 21 mi100 min E 2.9 G 5.1 76°F
CHII2 - Chicago, IL 21 mi50 min E 18 G 19 72°F 52°F
FSTI2 26 mi100 min S 4.1 68°F
45170 29 mi40 min E 5.8 G 7.8 64°F 60°F58°F
MCYI3 - Michigan City, IN 32 mi50 min NE 14 G 14 70°F 52°F
45174 37 mi40 min SSE 5.8 G 7.8 62°F 55°F1 ft54°F

Wind History for Calumet Harbor, IL
(wind in knots)    EDIT      (on/off)   Help
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
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
Last
24hr
NE3
N2
N2
N1
N1
N3
N2
NW2
--
--
E1
S5
S6
G10
SE6
G11
S7
G10
SE6
G12
NE7
NE9
NE8
G11
NE10
NE8
G11
E8
G11
E7
E6
G9
1 day
ago
NW1
NE2
N1
S1
SW1
SW3
--
N2
N1
W2
W1
E3
NE3
NE5
NE4
NE6
NE4
NE4
NE5
NE4
NE3
NE4
NE4
2 days
ago
NW3
NW5
NW4
G7
N2
N1
N4
NW3
G6
N6
NW4
G7
NW4
G7
N4
N4
NE4
N3
NE4
N6
N8
G11
N7
G10
NE5
G8
NE7
NE5
NE4
NE4
NE5

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Gary Regional Airport, IN4 mi55 minN 010.00 miA Few Clouds77°F51°F42%1017.6 hPa
Lansing Municipal Airport, IL7 mi65 minSE 410.00 miFair79°F58°F49%1017.3 hPa
Chicago, Chicago Midway Airport, IL18 mi47 minESE 810.00 miPartly Cloudy79°F53°F41%1016 hPa

Wind History from GYY (wind in knots)
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
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
Last 24hr33CalmCalmCalmCalmCalmCalmCalmCalmCalm4S4S7S10SE74SE7NE8NE7NE9NE7NE7Calm
1 day agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm44N5NE7NE644N64
2 days agoCalmCalmNW3NW3CalmN3CalmNW4
G14
NE4CalmNE4Calm4CalmCalm4NE5NE6544N6N53

Tide / Current Tables for
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_A
GOES Local Image of    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 Chicago, IL (21,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Chicago, IL
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.