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Marine Weather and Tides
Version 3.4 |
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. 6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen |
| Sunrise 7:59AM | Sunset 5:15PM | Tuesday December 10, 2019 9:54 PM EST (02:54 UTC) | Moonrise 4:26PM | Moonset 6:12AM | Illumination 99% |  |
LMZ844 St Joseph To South Haven Mi- 405 Pm Est Tue Dec 10 2019
.small craft advisory in effect through Wednesday evening...
Through early evening..West winds 20 to 25 knots. Partly Sunny with a chance of snow showers. Waves 4 to 6 feet.
Tonight..West winds to 30 knots. Snow showers likely. Waves 4 to 6 feet.
Wednesday..West winds to 30 knots veering northwest 15 to 20 knots late in the day. Snow showers likely. Waves 5 to 7 feet.
Wednesday night..West winds 5 to 15 knots backing south 10 to 20 knots after midnight. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight.
Thursday..South winds 15 to 25 knots. Mostly cloudy. Waves 1 to 2 feet building to 2 to 4 feet.
Thursday night..Southwest winds 15 to 20 knots. Mostly cloudy. Waves 2 to 4 feet.
Friday..South winds 10 to 15 knots. Mostly cloudy. Waves 1 to 3 feet.
Saturday..Southwest winds 10 to 15 knots veering west 15 to 20 knots late in the day. Cloudy with a chance of rain showers. Waves 1 to 2 feet building to 2 to 4 feet late in the day.
Sunday..Northwest winds 15 to 25 knots. Cloudy. Waves 6 to 8 feet.
.small craft advisory in effect through Wednesday evening...
Through early evening..West winds 20 to 25 knots. Partly Sunny with a chance of snow showers. Waves 4 to 6 feet.
Tonight..West winds to 30 knots. Snow showers likely. Waves 4 to 6 feet.
Wednesday..West winds to 30 knots veering northwest 15 to 20 knots late in the day. Snow showers likely. Waves 5 to 7 feet.
Wednesday night..West winds 5 to 15 knots backing south 10 to 20 knots after midnight. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight.
Thursday..South winds 15 to 25 knots. Mostly cloudy. Waves 1 to 2 feet building to 2 to 4 feet.
Thursday night..Southwest winds 15 to 20 knots. Mostly cloudy. Waves 2 to 4 feet.
Friday..South winds 10 to 15 knots. Mostly cloudy. Waves 1 to 3 feet.
Saturday..Southwest winds 10 to 15 knots veering west 15 to 20 knots late in the day. Cloudy with a chance of rain showers. Waves 1 to 2 feet building to 2 to 4 feet late in the day.
Sunday..Northwest winds 15 to 25 knots. Cloudy. Waves 6 to 8 feet.
LMZ844 Expires:201912110900;;156962
FZUS53 KGRR 102105
NSHGRR
Nearshore Marine Forecast
National Weather Service Grand Rapids MI
405 PM EST Tue Dec 10 2019
For waters within five nautical miles of shore on Lake Michigan
LMZ844-110900-
7 Day Forecast for Marine Location Near Lake Michigan Beach, MI
Hourly EDIT Helplocation: 42.22, -86.48 debug
Area Discussion for - Northern Indiana, IN
(on/off) Help NOTE: mouseover dotted underlined text for definitionFXUS63 KIWX 102328 AFDIWX
Area Forecast Discussion National Weather Service Northern Indiana 628 PM EST Tue Dec 10 2019
SYNOPSIS. Issued at 239 PM EST Tue Dec 10 2019
Lake effect snow showers and flurries will remain possible tonight and Wednesday, with light accumulations possible across far northern Indiana and Lower Michigan. It will remain cold otherwise with lows in the low to mid teens tonight and highs in the mid to upper 20s tomorrow. Warming temperatures and dry conditions are then expected into Thursday and Friday, with chances for rain and snow to follow this weekend.
SHORT TERM. (This Evening through Wednesday) Issued at 239 PM EST Tue Dec 10 2019
Slight backing of the wind field and infusion of drier/subsident air in wake of this morning's shortwave will continue to favor a downtrend in LES coverage and chances into this evening. A subtle mid level impulse will trail into the Lower Great Lakes tomorrow morning. Dry airmass in place and shearing nature to this feature should preclude much more than a few flurries or light snow showers, save for along and north of the Toll Road in north- central IN and southwest MI where some additional lake enhancement is anticipated. These locations could see a coating to 1 inch which could create a few issues on roads. Chilly otherwise with lows in the low-mid teens tonight, and highs in the mid-upper 20s tomorrow.
LONG TERM. (Wednesday Night through Tuesday) Issued at 239 PM EST Tue Dec 10 2019
Warming temperatures and dry conditions are expected Wednesday night through Friday as high pressure settles east toward the East Coast and troughing develops across the Central US in advance of a strong pacific jet. Downstream buckling of the mid-upper level height field in advance of this powerful pacific upper jet may force a trough axis through later Saturday into Saturday night with rain and snow chances followed by a shot of colder air Sunday. Confidence is low on impacts/amounts/timing however as model guidance continues to struggle on how to handle the interaction of low pressure lifting out of the Gulf of Mexico and parade of pacific origin shortwaves approaching from the west.
The synoptic system to follow into early next week still looks to have a snow threat on its northern fringe somewhere between the Ohio Valley and Great Lakes. Ensembles of the ECMWF and GFS remain all over regarding track and intensity at this forecast range, but something to monitor closely going forward.
AVIATION. (For the 00Z TAFS through 00Z Wednesday Evening) Issued at 627 PM EST Tue Dec 10 2019
Base of the trough continues to push through overnight into early Wednesday. As such, models show low level moisture wanes overnight, however, wind convergence and theta-e lapse rate instability continues near the lake. Lake effect has dwindled quite a bit, but can't totally rule out a spit of snow for a short time early in the period. It doesn't warrant inclusion in the TAFs at this time because it would not be impactful.
Following shortwave approaches Wed AM with second low level moisture push in conjunction with a clipper-like system. Light snow or flurries is a possibility with the system on it's dying trend. The current guidance doesn't impact flight conditions, but sometimes setups like this can be a little stronger than originally advertised especially if it acquires lake enhancement as well, so it warrants an eye to watch it as it approaches. Have handled the period with an VCSH for SBN at this point.
IWX WATCHES/WARNINGS/ADVISORIES. IN . NONE. MI . NONE. OH . NONE. LM . Small Craft Advisory until 7 PM EST Wednesday for LMZ043-046.
SYNOPSIS . Steinwedel SHORT TERM . Steinwedel LONG TERM . Steinwedel AVIATION . Roller
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Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a map| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
| SJOM4 - St. Joseph, MI | 8 mi | 54 min | W 16 G 22 | 26°F | 1025.7 hPa (+1.7) | |||
| SVNM4 - South Haven, MI | 16 mi | 44 min | WSW 20 G 23 | 25°F | ||||
| HLNM4 - 9087031 - Holland, MI | 41 mi | 54 min | W 16 G 22 | 25°F | 38°F | 1022.9 hPa (+1.2) | 14°F | |
| MCYI3 - Michigan City, IN | 41 mi | 34 min | W 21 G 24 | 22°F | 8°F |
Wind History for Holland, MI
(wind in knots) EDIT (on/off) Help| 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 | 9 PM | |
| Last 24hr | W G32 | W | W | W G27 | NW | NW G23 | NW G26 | NW | NW G29 | W | NW G30 | W G28 | NW G25 | W G23 | W G23 | W G22 | W G21 | W G20 | W G19 | W G20 | W G18 | SW G24 | W G22 | W G22 |
| 1 day ago | S | E | SE | E | SE G12 | S G14 | SE G11 | SE G13 | SE G12 | SE G20 | S G17 | S | S | S | SW | S | S | S | S | SW | SW | SW | SW | W G35 |
| 2 days ago | S G15 | S G16 | S | S | S G20 | S G21 | S | S G23 | S | S | S | S | S | S | S | S | S G27 | SW | SW | SW | SW | SW | S | S |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Southwest Michigan Regional Airport, MI | 6 mi | 61 min | W 15 | 10.00 mi | Overcast | 24°F | 10°F | 55% | 1025.7 hPa |
| South Haven, South Haven Area Regional Airport, MI | 15 mi | 58 min | W 13 G 17 | 10.00 mi | Overcast | 26°F | 11°F | 55% | 1024 hPa |
Link to 5 minute data for KBEH
Wind History from BEH (wind in knots)
| 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 | 9 PM | |
| Last 24hr | W G31 | W G30 | W G32 | W G31 | NW G23 | NW G24 | NW G21 | W G24 | W G25 | NW G29 | NW G29 | W G29 | W G25 | W G23 | W | W G23 | W G21 | W | W G22 | W | W | W | W G19 | W |
| 1 day ago | SW | S | S | S | S | S | S | SE | S G15 | S | S | SW | SW | W | W | SW | SW | SW | SW G21 | SW G24 | SW | W G25 | W G28 | W G31 |
| 2 days ago | S | S | S | S | S | S G19 | S | S G19 | S | S | S | S | S G21 | S G18 | S | SW G18 | SW G22 | S G19 | S G18 | S G19 | SW G18 | SW | SW | SW |
Tide / Current Tables for
EDIT Weekend mode (on/off) (on/off) HelpTide / Current Tables for
EDIT (on/off) HelpWeather Map
(on/off) Help Weather Map
GEOS 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.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Northern Indiana, IN (21,6,7,8)
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Ground Weather Radar Station Grand Rapids/Muskegon, MI
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