# Marine Weather **URL:** https://forum.gcaptain.com/c/maritime-news/marine-weather/31.md [Latest](https://forum.gcaptain.com/latest.md) · [Categories](https://forum.gcaptain.com/categories.md) · [Tags](https://forum.gcaptain.com/tags.md) --- ## [About the Marine Weather category](https://forum.gcaptain.com/t/about-the-marine-weather-category/37)
**Author:** [@system](https://forum.gcaptain.com/u/system)\ **Replies:** 0\ **Last updated:** [February 18, 2017, 12:41pm UTC](https://forum.gcaptain.com/t/about-the-marine-weather-category/37 "2017-02-18T12:41:57Z")
--- ## [What do you use for weather forecasting?](https://forum.gcaptain.com/t/what-do-you-use-for-weather-forecasting/76317)
**Author:** [@Sofia](https://forum.gcaptain.com/u/Sofia)\ **Replies:** 3\ **Last updated:** [July 1, 2026, 11:28pm UTC](https://forum.gcaptain.com/t/what-do-you-use-for-weather-forecasting/76317 "2026-07-01T23:28:00Z")
Hello everyone! Curious how smaller operators or independent vessels handle weather routing. Do you use a paid service like StormGeo or is it just apps (e.g. Windy) and gut instinct at that scale? Is there anything you w… --- ## [2026 Atlantic Hurricane Season Outlook: A Potential Break? Early Look at the hurricane season](https://forum.gcaptain.com/t/2026-atlantic-hurricane-season-outlook-a-potential-break-early-look-at-the-hurricane-season/75507)
**Author:** [@fredwx](https://forum.gcaptain.com/u/fredwx)\ **Replies:** 0\ **Last updated:** [May 12, 2026, 6:58pm UTC](https://forum.gcaptain.com/t/2026-atlantic-hurricane-season-outlook-a-potential-break-early-look-at-the-hurricane-season/75507 "2026-05-12T18:58:12Z")
The 2026 Atlantic hurricane season may offer something we haven’t seen in a while — a bit of a break. While the official outlook from the National Oceanic and Atmospheric Administration (NOAA) isn’t due until later this … --- ## [Iceberg limit has drifted south of 42N Latitude](https://forum.gcaptain.com/t/iceberg-limit-has-drifted-south-of-42n-latitude/75299)
**Author:** [@fredwx](https://forum.gcaptain.com/u/fredwx)\ **Replies:** 3\ **Last updated:** [April 29, 2026, 11:18pm UTC](https://forum.gcaptain.com/t/iceberg-limit-has-drifted-south-of-42n-latitude/75299 "2026-04-29T23:18:24Z")
The Estimated Limit of all known icebergs in the North Alantic has drifted south to below 42 N Latitude. --- ## [Developing El Niño in 2026 Will there be a Super El Nino?](https://forum.gcaptain.com/t/developing-el-nino-in-2026-will-there-be-a-super-el-nino/75233)
**Author:** [@fredwx](https://forum.gcaptain.com/u/fredwx)\ **Replies:** 7\ **Last updated:** [April 29, 2026, 12:21pm UTC](https://forum.gcaptain.com/t/developing-el-nino-in-2026-will-there-be-a-super-el-nino/75233 "2026-04-29T12:21:52Z")
The Pacific is entering a transition phase in 2026, and while ENSO-neutral conditions are currently in place, the latest guidance from the NOAA Climate Prediction Center points toward a likely shift to El Niño this summe… --- ## [Is the Atlantic Shifting Gears? - Tracking the Potential AMO Flip](https://forum.gcaptain.com/t/is-the-atlantic-shifting-gears-tracking-the-potential-amo-flip/75187)
**Author:** [@fredwx](https://forum.gcaptain.com/u/fredwx)\ **Replies:** 9\ **Last updated:** [April 20, 2026, 3:49pm UTC](https://forum.gcaptain.com/t/is-the-atlantic-shifting-gears-tracking-the-potential-amo-flip/75187 "2026-04-20T15:49:42Z")
For the first time in over 30 years, we are seeing evidence that the Atlantic Multidecadal Oscillation (AMO) might be heading into its negative (cool) phase. If this shift is real, it could fundamentally change our weath… --- ## [Hurricane Irma Upate](https://forum.gcaptain.com/t/hurricane-irma-upate/46008)
**Author:** [@fredwx](https://forum.gcaptain.com/u/fredwx)\ **Replies:** 39\ **Last updated:** [February 17, 2026, 9:22am UTC](https://forum.gcaptain.com/t/hurricane-irma-upate/46008 "2026-02-17T09:22:06Z")
Major Hurricane Irma, currently with max winds to 105 knots (120 mph)and a minimum pressure of 944 mb continues to move west-southwestward at about 11 knots. Read more: http://oceanweatherservices.com/…/hurricane-irma-mo… --- ## [Ships in stormy weather](https://forum.gcaptain.com/t/ships-in-stormy-weather/73921)
**Author:** [@ombugge](https://forum.gcaptain.com/u/ombugge)\ **Replies:** 4\ **Last updated:** [December 30, 2025, 12:57pm UTC](https://forum.gcaptain.com/t/ships-in-stormy-weather/73921 "2025-12-30T12:57:48Z")
Familiar sight for some: --- ## [Should there be a new CAT-6 Hurricane Category?](https://forum.gcaptain.com/t/should-there-be-a-new-cat-6-hurricane-category/73416)
**Author:** [@fredwx](https://forum.gcaptain.com/u/fredwx)\ **Replies:** 10\ **Last updated:** [December 6, 2025, 1:40am UTC](https://forum.gcaptain.com/t/should-there-be-a-new-cat-6-hurricane-category/73416 "2025-12-06T01:40:32Z")
Hurricanes are a part of life for coastal communities, but what happens when the storms we thought we understood get a whole lot worse?. Recently, a 2024 study in the Proceedings of the National Academy of Sciences propo… --- ## [The 2025 Atlantic Hurricane Season in Review](https://forum.gcaptain.com/t/the-2025-atlantic-hurricane-season-in-review/73790)
**Author:** [@fredwx](https://forum.gcaptain.com/u/fredwx)\ **Replies:** 1\ **Last updated:** [December 3, 2025, 10:41am UTC](https://forum.gcaptain.com/t/the-2025-atlantic-hurricane-season-in-review/73790 "2025-12-03T10:41:52Z")
--- ## [Pacific Hurricane Force Warning](https://forum.gcaptain.com/t/pacific-hurricane-force-warning/73597)
**Author:** [@fredwx](https://forum.gcaptain.com/u/fredwx)\ **Replies:** 5\ **Last updated:** [October 21, 2025, 4:51pm UTC](https://forum.gcaptain.com/t/pacific-hurricane-force-warning/73597 "2025-10-21T16:51:30Z")
Intense Storm Heads towards Gulf of Alaska During the next 12-24 hours max winds are forecast up to 75-80 knots with significant wave heights building rapidly up to 15 meters (49 feet) within 300 nm south of the center. … --- ## [A Look at Tropical Development for September](https://forum.gcaptain.com/t/a-look-at-tropical-development-for-september/73308)
**Author:** [@fredwx](https://forum.gcaptain.com/u/fredwx)\ **Replies:** 0\ **Last updated:** [September 4, 2025, 2:00am UTC](https://forum.gcaptain.com/t/a-look-at-tropical-development-for-september/73308 "2025-09-04T02:00:41Z")
As we move into September, the tropics are starting to get busy. Here’s a breakdown of the latest Atlantic tropical outlook, so you know what to watch for in the coming weeks. --- ## [Freak wave hit tanker](https://forum.gcaptain.com/t/freak-wave-hit-tanker/73228)
**Author:** [@ombugge](https://forum.gcaptain.com/u/ombugge)\ **Replies:** 1\ **Last updated:** [August 25, 2025, 1:24pm UTC](https://forum.gcaptain.com/t/freak-wave-hit-tanker/73228 "2025-08-25T13:24:00Z")
Jann Inge Bakkeid !https://www.facebook.com/groups/865224253658886/ --- ## [Hurricane Erin Now CAT-4](https://forum.gcaptain.com/t/hurricane-erin-now-cat-4/73163)
**Author:** [@fredwx](https://forum.gcaptain.com/u/fredwx)\ **Replies:** 7\ **Last updated:** [August 21, 2025, 10:32am UTC](https://forum.gcaptain.com/t/hurricane-erin-now-cat-4/73163 "2025-08-21T10:32:12Z")
Hurricane Erin now CAT-4 - Fred Pickhardt's Substack --- ## [Hurricane Erin Intensifies](https://forum.gcaptain.com/t/hurricane-erin-intensifies/73154)
**Author:** [@fredwx](https://forum.gcaptain.com/u/fredwx)\ **Replies:** 0\ **Last updated:** [August 15, 2025, 4:36pm UTC](https://forum.gcaptain.com/t/hurricane-erin-intensifies/73154 "2025-08-15T16:36:53Z")
--- ## [X-Dexter now producing Hurricane Winds](https://forum.gcaptain.com/t/x-dexter-now-producing-hurricane-winds/73119)
**Author:** [@fredwx](https://forum.gcaptain.com/u/fredwx)\ **Replies:** 0\ **Last updated:** [August 8, 2025, 1:32pm UTC](https://forum.gcaptain.com/t/x-dexter-now-producing-hurricane-winds/73119 "2025-08-08T13:32:18Z")
--- ## [2025 Atlantic Hurricane Outlook Update](https://forum.gcaptain.com/t/2025-atlantic-hurricane-outlook-update/72703)
**Author:** [@fredwx](https://forum.gcaptain.com/u/fredwx)\ **Replies:** 0\ **Last updated:** [May 30, 2025, 2:39am UTC](https://forum.gcaptain.com/t/2025-atlantic-hurricane-outlook-update/72703 "2025-05-30T02:39:03Z")
As of late May, sea surface temperatures (SST) are cooler than normal over most of the eastern half of the Atlantic Main Development Region (MDR) while they remain warmer than normal over the southwestern North Atlantic,… --- ## [Hurricane Forecasts Are More Accurate Than Ever – NOAA Funding Cuts Could](https://forum.gcaptain.com/t/hurricane-forecasts-are-more-accurate-than-ever-noaa-funding-cuts-could/72590)
**Author:** [@Kennebec\_Captain](https://forum.gcaptain.com/u/Kennebec_Captain)\ **Replies:** 50\ **Last updated:** [May 23, 2025, 11:12am UTC](https://forum.gcaptain.com/t/hurricane-forecasts-are-more-accurate-than-ever-noaa-funding-cuts-could/72590 "2025-05-23T11:12:05Z")
Hurricanes are steered by the winds around them. Wind patterns detected today over the Rocky Mountains and Great Plains – places like Colorado, Wyoming, Nebraska and South Dakota – give forecasters clues to the winds … --- ## [Underwater Volcano 300 Miles Off of Oregon Predicted To Erupt](https://forum.gcaptain.com/t/underwater-volcano-300-miles-off-of-oregon-predicted-to-erupt/72591)
**Author:** [@Sand\_Pebble](https://forum.gcaptain.com/u/Sand_Pebble)\ **Replies:** 2\ **Last updated:** [May 16, 2025, 1:19pm UTC](https://forum.gcaptain.com/t/underwater-volcano-300-miles-off-of-oregon-predicted-to-erupt/72591 "2025-05-16T13:19:00Z")
I wonder if this affects marine traffic in any way? It wasn’t that big a deal in 2015. --- ## [2025 Atlantic Hurricane Season Outlook](https://forum.gcaptain.com/t/2025-atlantic-hurricane-season-outlook/72470)
**Author:** [@fredwx](https://forum.gcaptain.com/u/fredwx)\ **Replies:** 0\ **Last updated:** [April 26, 2025, 3:07am UTC](https://forum.gcaptain.com/t/2025-atlantic-hurricane-season-outlook/72470 "2025-04-26T03:07:59Z")
As of April, conditions in the North Atlantic appear to favor a somewhat more active season than normal, however, less active than in 2024. Several hurricane outlooks have already been published, predicting between 10… --- ## [Norwegain meterologist Vilhelm Bjerknes](https://forum.gcaptain.com/t/norwegain-meterologist-vilhelm-bjerknes/71599)
**Author:** [@Kennebec\_Captain](https://forum.gcaptain.com/u/Kennebec_Captain)\ **Replies:** 0\ **Last updated:** [January 14, 2025, 1:10pm UTC](https://forum.gcaptain.com/t/norwegain-meterologist-vilhelm-bjerknes/71599 "2025-01-14T13:10:10Z")
Most of the early advances in the science of meteorology were related to progress in communication and observation technology but Vilhelm Bjerknes’ contributions were fundamental different in that he applied physics, fl… --- ## [2 Men & Dog Survive EF-3 Tornado On Small Boat](https://forum.gcaptain.com/t/2-men-dog-survive-ef-3-tornado-on-small-boat/71505)
**Author:** [@Sand\_Pebble](https://forum.gcaptain.com/u/Sand_Pebble)\ **Replies:** 0\ **Last updated:** [January 3, 2025, 10:24pm UTC](https://forum.gcaptain.com/t/2-men-dog-survive-ef-3-tornado-on-small-boat/71505 "2025-01-03T22:24:01Z")
Here’s a video of what a fishing boat looks like in an EF-3 tornado. The skipper gives a great descriptions of events. They thought they lost their fishing dog but he hid in a compartment on the capsized boat. … --- ## [Monster Pacific Storm Unleashes Massive 65-Foot Waves](https://forum.gcaptain.com/t/monster-pacific-storm-unleashes-massive-65-foot-waves/71427)
**Author:** [@Kennebec\_Captain](https://forum.gcaptain.com/u/Kennebec_Captain)\ **Replies:** 5\ **Last updated:** [December 25, 2024, 7:10pm UTC](https://forum.gcaptain.com/t/monster-pacific-storm-unleashes-massive-65-foot-waves/71427 "2024-12-25T19:10:53Z")
SWH of 20 meters, measured by an aircraft: Underscoring the significance these conditions, the World Meteorological Organization’s current record for significant wave height measured by a buoy stands at 19 meters (… --- ## [The Beaufort Scale Explained: A Mariner's Essential Tool](https://forum.gcaptain.com/t/the-beaufort-scale-explained-a-mariners-essential-tool/71303)
**Author:** [@Kennebec\_Captain](https://forum.gcaptain.com/u/Kennebec_Captain)\ **Replies:** 44\ **Last updated:** [December 8, 2024, 11:06am UTC](https://forum.gcaptain.com/t/the-beaufort-scale-explained-a-mariners-essential-tool/71303 "2024-12-08T11:06:07Z")
The Beaufort Scale allows mariners to estimate wind speed by observing sea surface effects. It ranges from 0 (calm) to 12 (hurricane force), providing a standardized way to measure wind force. This scale enhances mari… --- ## [GenCast predicts weather and the risks of extreme conditions with](https://forum.gcaptain.com/t/gencast-predicts-weather-and-the-risks-of-extreme-conditions-with/71318)
**Author:** [@Kennebec\_Captain](https://forum.gcaptain.com/u/Kennebec_Captain)\ **Replies:** 1\ **Last updated:** [December 5, 2024, 9:39pm UTC](https://forum.gcaptain.com/t/gencast-predicts-weather-and-the-risks-of-extreme-conditions-with/71318 "2024-12-05T21:39:17Z")
GenCast provides better forecasts of both day-to-day weather and extreme events than the top operational system, the European Centre for Medium-Range Weather Forecasts’ (ECMWF) ENS, up to 15 days in advance. Be inte… --- ## [Weather and the Butterfly Effect](https://forum.gcaptain.com/t/weather-and-the-butterfly-effect/71287)
**Author:** [@spowiednick](https://forum.gcaptain.com/u/spowiednick)\ **Replies:** 8\ **Last updated:** [December 4, 2024, 10:45am UTC](https://forum.gcaptain.com/t/weather-and-the-butterfly-effect/71287 "2024-12-04T10:45:56Z")
What would our Forum expert panel of meteorologists and weather connoisseurs comment on " batterfly effect " , tropical wave and tropical wave disturbance in relation to midlatitude cyclonic weather systems and compac… --- ## [Bomb Cyclone?](https://forum.gcaptain.com/t/bomb-cyclone/71199)
**Author:** [@ChaplainDarrell](https://forum.gcaptain.com/u/ChaplainDarrell)\ **Replies:** 45\ **Last updated:** [December 2, 2024, 2:04pm UTC](https://forum.gcaptain.com/t/bomb-cyclone/71199 "2024-12-02T14:04:40Z")
gCaptain is reporting a "bomb cyclone. But the NHC does not show anything. Both can’t be right? --- ## [Massive "Bomb Cyclone" to Unleash Hurricane-Force Winds and Towering Waves](https://forum.gcaptain.com/t/massive-bomb-cyclone-to-unleash-hurricane-force-winds-and-towering-waves/71193)
**Author:** [@Kennebec\_Captain](https://forum.gcaptain.com/u/Kennebec_Captain)\ **Replies:** 3\ **Last updated:** [November 20, 2024, 12:08pm UTC](https://forum.gcaptain.com/t/massive-bomb-cyclone-to-unleash-hurricane-force-winds-and-towering-waves/71193 "2024-11-20T12:08:00Z")
Initial Formation: The low-pressure system, currently at 1013 MB, is moving eastward at 40 knots and rapidly intensifying. Rapid Intensification: Within 24 hours, the system is forecast to deepen to 980 MB, with wind… --- ## [North Pacific Rages On](https://forum.gcaptain.com/t/north-pacific-rages-on/71063)
**Author:** [@Kennebec\_Captain](https://forum.gcaptain.com/u/Kennebec_Captain)\ **Replies:** 5\ **Last updated:** [November 4, 2024, 2:17pm UTC](https://forum.gcaptain.com/t/north-pacific-rages-on/71063 "2024-11-04T14:17:33Z")
From a couple days ago but an interesting blog. --- ## [USN Weather - FNMOC?](https://forum.gcaptain.com/t/usn-weather-fnmoc/70885)
**Author:** [@Binbag\_the\_Saylore](https://forum.gcaptain.com/u/Binbag_the_Saylore)\ **Replies:** 1\ **Last updated:** [October 20, 2024, 9:18pm UTC](https://forum.gcaptain.com/t/usn-weather-fnmoc/70885 "2024-10-20T21:18:48Z")
“www.fnmoc.navy.mil/wxmap\_cgi/index.html” I have used this USN site for decades for weather planning, incl hurricane avoidance, on dozens of transatlantics over the years.I have aslo used it from the Med through to SE A… [Next page](https://forum.gcaptain.com/c/maritime-news/marine-weather/31.md?page=1)