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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 7:02AM | Sunset 5:49PM | Tuesday October 22, 2019 9:25 AM EDT (13:25 UTC) | Moonrise 12:00AM | Moonset 3:08PM | Illumination 35% |  |
ANZ154 Coastal Waters From Cape Elizabeth, Me To Merrimack River, Ma Out 25 Nm- 859 Am Edt Tue Oct 22 2019
.small craft advisory in effect through Wednesday evening...
Rest of today..E winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. A slight chance of showers this afternoon with vsby 1 to 3 nm.
Tonight..E winds 15 to 25 kt with gusts up to 30 kt. Seas 5 to 8 ft, building to 8 to 11 ft after midnight. Showers. Vsby 1 to 3 nm.
Wed..SE winds 10 to 15 kt, becoming W in the afternoon. Gusts up to 25 kt. Seas 7 to 10 ft, subsiding to 5 to 8 ft in the afternoon. Showers in the morning with vsby 1 to 3 nm.
Wed night..W winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to 6 ft, subsiding to 3 to 5 ft after midnight.
Thu..SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft.
Thu night..SW winds 10 to 15 kt, becoming W 5 to 15 kt after midnight. Seas 3 to 5 ft.
Fri..W winds 5 to 10 kt. Seas 2 to 3 ft.
Fri night..W winds 5 to 10 kt. Seas around 2 ft. A chance of showers.
Sat..NW winds 5 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers.
Sat night..N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft.
.small craft advisory in effect through Wednesday evening...
Rest of today..E winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. A slight chance of showers this afternoon with vsby 1 to 3 nm.
Tonight..E winds 15 to 25 kt with gusts up to 30 kt. Seas 5 to 8 ft, building to 8 to 11 ft after midnight. Showers. Vsby 1 to 3 nm.
Wed..SE winds 10 to 15 kt, becoming W in the afternoon. Gusts up to 25 kt. Seas 7 to 10 ft, subsiding to 5 to 8 ft in the afternoon. Showers in the morning with vsby 1 to 3 nm.
Wed night..W winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to 6 ft, subsiding to 3 to 5 ft after midnight.
Thu..SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft.
Thu night..SW winds 10 to 15 kt, becoming W 5 to 15 kt after midnight. Seas 3 to 5 ft.
Fri..W winds 5 to 10 kt. Seas 2 to 3 ft.
Fri night..W winds 5 to 10 kt. Seas around 2 ft. A chance of showers.
Sat..NW winds 5 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers.
Sat night..N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft.
ANZ100 859 Am Edt Tue Oct 22 2019
Synopsis for stonington me to merrimack river ma out to 25 nm.. An upper level ridge shifts east today with increasing clouds and easterly flow. A low pressure system and cold front cross tonight into early tomorrow with gusty winds and periods of heavy rain, exiting into the maritimes late Wednesday. A ridge of high pressure follows for Wednesday night and Thursday. &&
Synopsis for stonington me to merrimack river ma out to 25 nm.. An upper level ridge shifts east today with increasing clouds and easterly flow. A low pressure system and cold front cross tonight into early tomorrow with gusty winds and periods of heavy rain, exiting into the maritimes late Wednesday. A ridge of high pressure follows for Wednesday night and Thursday. &&
7 Day Forecast for Marine Location Near Kennebunk, ME
Hourly EDIT Helplocation: 43.32, -70.56 debug
Area Discussion for - Gray/Portland, ME
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kgyx 221300 afdgyx area forecast discussion national weather service gray me 900 am edt Tue oct 22 2019 Synopsis An upper ridge shifts east today with increasing clouds and onshore flow ahead of an approaching frontal system. Widespread rain, heavy at times, will overspread much of the area this evening and overnight with gusty winds along the coast. The system will exit into the maritimes on Wednesday with high pressure and drier air to follow for Wednesday night and Thursday. A cold front will cross the area Friday with a few clouds and scattered showers. High pressure and drier air follows for the upcoming weekend. Near term until 7 pm this evening 900 am... Minor estf update to reflect the current mesonet and satellite trends in near term grids. Prev disc... 730 am update... forecast is on track with only minor tweaks to morning temperatures as sites come up and down with radiational cooling interrupted by incoming cloud cover. Previously... patchy fog this morning will gradually clear out as a ridge of high pressure shifts east, away from the area. Meanwhile a broad shield of cirrus cloud cover continues to stream over the area, accompanying falling heights aloft as a broad closed low approaches from the great lakes region. As the column gradually moistens today, clouds will increase in coverage and depth, ultimately limiting afternoon temperatures to the mid to upper 50s across lowland locations. Precipitation may begin to creep into the extreme southern zones by sunset today, however better forcing coinciding with better available moisture holds off until later this evening. Short term 7 pm this evening through 6 pm Wednesday This evening, the broad closed trough aloft rotates negatively into the northeast, in turn developing a strong southerly to southeasterly jet on the order of 50-60 kts. The jet picks up the moist remnants of TC nestor leading to a period of moderate to heavy rainfall overnight along with gusty winds, particularly along the mid coast. The target time period for heavy rain and wind impacts thus centers around the timing, development, and eastward movement of the low level jet, roughly 03-12z Wednesday. In general models have consistently yielded 1-2" of rainfall across the mountains, eastern nh, and most of the state of maine tonight with a sharp cutoff north of the mountains owing to favorable southeasterly upslope flow. Much of this could fall over a 6 hr period as the wave of rain moves SW to NE over the coastal plain, however 3 hr FFG of 2-3" suggests water impacts ought to be minimal except locally where fallen leaves may block drains. Although it remains unlikely that the strongest winds associated with the surging jet will mix to the surface over land due to thermal profiles alone, heavy rain could still bring a couple 40+ kt gusts to the mid coast surface tonight into tomorrow morning with sustained winds on the cusp of advisory criteria. Thus, a wind advisory has been hoisted along western penobscot bay tonight into tomorrow morning where eastward southeastward facing shoreline will be most prone to strong winds. Further south, a wave forms along the crossing cold front over the mid-atlantic, moving up the eastern seaboard as the cold front crosses west to east on the heels of the aforementioned wave of heavy rain. This provides a final round of rain during mid- Wednesday, after which a trough axis aloft crosses with a sharp pop cut off to follow as forcing is lost and dry air intrudes from the west. A brief period of favorable upsloping on the back end could prolong light shower activity Wednesday but the area will be dry by sundown. |
Long term Wednesday night through Monday * no significant weather impacts expected through Sunday. Models are in good agreement for the exit timing of the fast moving frontal system out of our forecast area by Wednesday night. High pressure moves in Wednesday night and exits the area by Friday. On Friday, a cold front moves through giving us clouds and chance pops across the area into early Saturday. There is not a good moisture source for this cold front. Depending on timing, of the bulk of the scattered showers, some inland areas could see scattered rain and or snow showers. Another round of dry weather dominated by high pressure for Saturday night through Sunday. There is a big divergence in the models on when a system will go through mid atlantic this weekend early next week. Depending on which solution pans out will effect if we have any weather on Monday. Aviation 13z Tuesday through Saturday Short term... patchy fog lifts in the couple hours following sunrise allowing vfr to prevail for most of today with easterly flow on the order of 5-10 kts. High cirrus clouds early will increase in coverage and depth through the day, degrading to MVFR and eventually ifr ceilings from south to north this evening associated with a wave of rain. Periods of ifr lifr are likely overnight across all coastal and coastal plain sites in rain with periods of patchy fog restrictions in breaks. A period of llws is also possible overnight associated with a surging low level jet. Skies gradually clear Wednesday afternoon with a return toVFR from SW to ne, although low clouds could hang around north of the mountains. Long term...VFR conditions through Thursday night. MVFR possible with passage of cold front on Friday into early Saturday. Marine Short term... Scas develop areawide today as onshore flow increases ahead of an approaching frontal system. Tonight, 10-15 ft waves develop along with gale force winds across mid coast waters before subsiding by mid day. Scas area wide persist for the remainder of Wednesday. Long term... Scas to last into Thursday morning because of gusty winds and seas. Hydrology A fast moving frontal system crosses tonight into tomorrow with models continuing to send a wave of moderate to heavy rainfall s to NE across eastern nh into central maine. In general models have consistently yielded 1-2" of rainfall over these areas with a sharp cutoff north of the mountains owing to favorable southeasterly upslope flow. Much of this could fall over a 6 hr period however 3 hr FFG of 2-3" suggests water impacts ought to be minimal except locally where fallen leaves may block drains. Expect modest rises on local brooks and rivers as a result at any rate, particularly across the headwaters of the androscoggin, saco, and kennebec basins. Gyx watches warnings advisories Me... Wind advisory from 10 pm this evening to 8 am edt Wednesday for mez027-028. Nh... None. Marine... Small craft advisory until 8 pm edt Wednesday for anz153-154. Small craft advisory until midnight edt tonight for anz150>152. Small craft advisory from noon to 8 pm edt Wednesday for anz150>152. Gale warning from midnight tonight to noon edt Wednesday for anz150>152. Es |
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 |
| WELM1 - 8419317 - Wells, ME | 0 mi | 55 min | N 5.1 G 7 | 47°F | 54°F | 1022.3 hPa | ||
| WEXM1 - Wells Reserve, ME | 1 mi | 85 min | N 6 | 46°F | 44°F | |||
| 44030 - Buoy B0102 - Western Maine Shelf | 12 mi | 81 min | NNE 14 G 16 | 52°F | 55°F | 5 ft | 1021 hPa | |
| BGXN3 - Great Bay Reserve, NH | 23 mi | 100 min | Calm | 45°F | 1022 hPa | 45°F | ||
| IOSN3 - Isle of Shoals, NH | 25 mi | 85 min | NNE 14 G 16 | 51°F | 1020.5 hPa (-0.0) | 51°F | ||
| 44007 - PORTLAND 12 NM Southeast of Portland,ME | 26 mi | 35 min | NE 14 G 16 | 51°F | 53°F | 4 ft | 1021 hPa (-0.0) | 48°F |
| CASM1 - 8418150 - Portland, ME | 29 mi | 55 min | 47°F | 54°F | ||||
| 44098 - Jeffrey's Ledge, NH (160) | 42 mi | 47 min | 55°F | 7 ft |
Wind History for Wells, ME
(wind in knots) EDIT (on/off) Help| 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 | 6 AM | 7 AM | 8 AM | 9 AM | |
| Last 24hr | N G9 | N G7 | E | SE | SE | SE | SE | SE | S | N | N | N | N | N | N | N | N | NW | N | N | N | N G11 | N G10 | N |
| 1 day ago | N | N | NE | E | E | E | E | E | E | NE | N | N | N | NW | NW | N | N | NW | N | N | N | N | N | N |
| 2 days ago | N G14 | N G10 | N G9 | W G8 | SW G11 | W G9 | W G9 | NW G8 | NW | NW | NE | NW | N | N | N | NW | N | N | NW | NW | N | N | N | N |
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 |
| Sanford, Sanford Regional Airport, ME | 9 mi | 29 min | N 4 | 10.00 mi | Fair | 47°F | 45°F | 93% | 1022.8 hPa |
| Rochester - Skyhaven Airport, NH | 19 mi | 34 min | N 3 | 10.00 mi | Fair | 48°F | 44°F | 86% | 1022.1 hPa |
| Pease Air Force Base / Portsmouth, NH | 21 mi | 29 min | N 4 | 10.00 mi | Overcast | 48°F | 45°F | 89% | 1022.3 hPa |
Link to 5 minute data for KSFM
Wind History from SFM (wind in knots)
| 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 | 6 AM | 7 AM | 8 AM | 9 AM | |
| Last 24hr | N | N | N | N | NE | E | SE | Calm | Calm | W | Calm | Calm | Calm | W | Calm | Calm | Calm | Calm | W | Calm | N | N | N | |
| 1 day ago | N | N | Calm | Calm | SE | SE | E | NE | Calm | Calm | Calm | Calm | SW | Calm | N | Calm | Calm | Calm | Calm | Calm | Calm | N | N | |
| 2 days ago | NW G14 | N | SW | W | SW | NW | W | W | NW | Calm | Calm | SW | SW | Calm | Calm | W | Calm | Calm | W | Calm | Calm | Calm | Calm | N |
Tide / Current Tables for Wells, Webhannet River, Maine
EDIT Weekend mode (on/off) (on/off) Help One Week of DataTide / Current data from XTide NOT FOR NAVIGATION
Tide / Current Tables for Portsmouth Harbor Entrance, New Hampshire Current
EDIT (on/off) Help One Week of DataPortsmouth Harbor Entrance
Click for Map
Tue -- 02:13 AM EDT 0.00 knots Slack
Tue -- 04:08 AM EDT 1.07 knots Max Flood
Tue -- 07:04 AM EDT Sunrise
Tue -- 07:45 AM EDT -0.00 knots Slack
Tue -- 10:39 AM EDT -1.57 knots Max Ebb
Tue -- 02:30 PM EDT 0.00 knots Slack
Tue -- 03:08 PM EDT Moonset
Tue -- 04:31 PM EDT 1.14 knots Max Flood
Tue -- 05:49 PM EDT Sunset
Tue -- 07:56 PM EDT -0.00 knots Slack
Tue -- 11:09 PM EDT -1.87 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Tue -- 02:13 AM EDT 0.00 knots Slack
Tue -- 04:08 AM EDT 1.07 knots Max Flood
Tue -- 07:04 AM EDT Sunrise
Tue -- 07:45 AM EDT -0.00 knots Slack
Tue -- 10:39 AM EDT -1.57 knots Max Ebb
Tue -- 02:30 PM EDT 0.00 knots Slack
Tue -- 03:08 PM EDT Moonset
Tue -- 04:31 PM EDT 1.14 knots Max Flood
Tue -- 05:49 PM EDT Sunset
Tue -- 07:56 PM EDT -0.00 knots Slack
Tue -- 11:09 PM EDT -1.87 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
| 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 | 10 pm | 11 pm |
| -1.2 | -0.8 | -0.2 | 0.6 | 1.1 | 0.9 | 0.5 | 0.2 | -0.1 | -0.8 | -1.4 | -1.5 | -1.2 | -0.8 | -0.4 | 0.4 | 1 | 1.1 | 0.6 | 0.3 | -0 | -0.6 | -1.4 | -1.9 |
Weather Map
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GEOS Local Image of Northeast 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 Gray/Portland, ME (9,2,3,4)
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Ground Weather Radar Station Portland, ME
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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. |