{"id":5664,"date":"2026-09-12T18:39:12","date_gmt":"2026-09-12T18:39:12","guid":{"rendered":"https:\/\/ialert.com\/blog\/?p=5664"},"modified":"2026-09-12T18:39:12","modified_gmt":"2026-09-12T18:39:12","slug":"tropical-storm-norbert-sep-12-2026","status":"publish","type":"post","link":"https:\/\/ialert.com\/blog\/news-events\/tropical-storm-norbert-sep-12-2026\/","title":{"rendered":"Tropical Storm Norbert Holds 60 mph Winds Far East of Hawaii, No Coastal Watches in Effect"},"content":{"rendered":"<br \/>\n<figure style=\"margin:0 0 24px 0;border:1px solid #d8dde3;border-radius:6px;padding:8px;background:#ffffff;\"><img loading=\"lazy\" decoding=\"async\" \n  src=\"https:\/\/ialert.com\/blog\/wp-content\/uploads\/2026\/09\/ialert-tropical-storm-norbert-forecast-track-september-12-2026.jpg\" alt=\"Tropical \n  Storm Norbert forecast cone on September 12, 2026, tracking west over the East Pacific and weakening east of Hawaii\" width=\"1600\"       \n  height=\"829\" style=\"width:100%;max-width:100%;height:auto;border-radius:4px;\" \/><figcaption \n  style=\"font-size:14px;line-height:1.45;color:#555555;margin-top:10px;padding:0 4px 4px 4px;\"><a \n  href=\"https:\/\/ialert.com\/hurricanes.php\">iAlert hurricane tracker<\/a> forecast track from the 5 AM HST advisory on Saturday, September 12,<br \/>\n  2026. Green S markers show Norbert at tropical storm strength from Saturday through 2 AM Tuesday. Blue D markers show the post-tropical<br \/>\n  remnant low forecast for 2 AM Wednesday and 2 AM Thursday, the last point about 345 miles southeast of Hilo. The shaded cone shows the<br \/>\n  probable track of the center, not the size of the storm. Data: NOAA National Hurricane Center.<\/figcaption><\/figure>\n<p>Tropical Storm Norbert was centered about 1,255 miles west-southwest of the southern tip of Baja California and about 1,760 miles east of<br \/>\n  Hilo, Hawaii, at 5:00 a.m. HST on Saturday, September 12, 2026, with maximum sustained winds near 60 mph. The National Hurricane Center lists<br \/>\n  no coastal watches or warnings and no hazards affecting land. Norbert is moving west-northwest at 10 mph over open water, and the official<br \/>\n  forecast weakens it to a post-tropical remnant low by early Wednesday.<\/p>\n<p><strong>Key points:<\/strong><\/p>\n<ul>\n<li>Maximum sustained winds near 60 mph with higher gusts; minimum central pressure 999 mb.<\/li>\n<li>Center near 17.3N 128.3W, moving west-northwest at 10 mph.<\/li>\n<li>No coastal watches or warnings and no hazards affecting land.<\/li>\n<li>Forecast peak of 65 mph through early Sunday, then gradual weakening early next week.<\/li>\n<li>Post-tropical remnant low forecast by 2 a.m. HST Wednesday, September 16, about 590 miles east-southeast of Hilo.<\/li>\n<\/ul>\n<div style=\"background: #000000; padding: 20px 24px; margin: 20px 0; border-radius: 4px;\">\n<p style=\"color: #ffffff; font-size: 16px; font-weight: bold; margin: 0 0 6px 0;\">Get Severe Weather Alerts for Your Location<\/p>\n<p style=\"color: rgba(255,255,255,0.9); margin: 0 0 14px 0;\">When any NWS watch, warning, or advisory is issued for your area, iAlert sends you an immediate notification by email, text message, or phone call, 24 hours a day, 7 days a week.<\/p>\n<p><a href=\"https:\/\/ialert.com\/services\/severe-weather-alerts.php\" style=\"background: #C41226; color: #ffffff; padding: 10px 22px; text-decoration: none; border-radius: 3px; font-weight: bold; display: inline-block;\">Sign Up for Severe Weather Alerts &rarr;<\/a>\n<\/div>\n<h2>Where Tropical Storm Norbert stands now<\/h2>\n<p>Advisory Number 12 from the National Hurricane Center in Miami placed the center near latitude 17.3 North, longitude 128.3 West at 1500<br \/>\n  UTC Saturday. That is 5:00 a.m. HST, 8:00 a.m. PDT, and 11:00 a.m. EDT.<\/p>\n<p>Maximum sustained winds are 60 mph (50 knots) with higher gusts, and the minimum central pressure is 999 mb. That leaves Tropical Storm<br \/>\n  Norbert 14 mph below the 74 mph hurricane threshold. The NHC discussion notes the objective and subjective intensity estimates were unchanged<br \/>\n  from six hours earlier.<\/p>\n<p>The wind field of Tropical Storm Norbert is lopsided. Tropical-storm-force winds reach up to 105 miles from the center to the northwest<br \/>\n  and about 90 miles to the northeast, but only about 30 miles to the south. NHC expanded the northern wind radii after an OSCAT-3<br \/>\n  scatterometer pass (a satellite instrument that measures winds at the ocean surface) at 0842 UTC.<\/p>\n<p>The most important line in the advisory for readers on land is the shortest one. Under &#8220;Hazards Affecting Land,&#8221; the National Hurricane<br \/>\n  Center listed a single word: none.<\/p>\n<h2>Forecast track and intensity for Tropical Storm Norbert<\/h2>\n<p>Forecasters expect a turn toward the west on Sunday, with that general heading continuing for the next several days as a subtropical ridge<br \/>\n  to the north steers the storm. Most of the skilled track models shifted north on this cycle, so NHC moved its official track to the right of<br \/>\n  the previous forecast, close to the GDMI ensemble mean and the HCCA consensus aid.<\/p>\n<p>Only modest strengthening is expected through the weekend, with a forecast peak of 65 mph. Gradual weakening follows early next week. The<br \/>\n  forecast table shows Tropical Storm Norbert crossing 140\u00b0W into the Central Pacific basin between 2 p.m. HST Monday and 2 a.m. HST Tuesday,<br \/>\n  then becoming a post-tropical remnant low by 2 a.m. HST Wednesday, September 16.<\/p>\n<div style=\"overflow-x:auto;margin:0 0 20px 0;\">\n<p><\/p>\n<table style=\"width:100%;border-collapse:collapse;font-size:15px;\">\n<thead>\n<tr style=\"background:#f1f4f7;\">\n<th style=\"text-align:left;padding:8px;border:1px solid #d8dde3;\">Forecast time (HST)<\/th>\n<th style=\"text-align:left;padding:8px;border:1px solid #d8dde3;\">Position<\/th>\n<th style=\"text-align:left;padding:8px;border:1px solid #d8dde3;\">Max winds<\/th>\n<th style=\"text-align:left;padding:8px;border:1px solid #d8dde3;\">Status<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">Sat Sep 12, 5 AM<\/td>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">17.3N<br \/>\n  128.3W<\/td>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">60 mph<\/td>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">Tropical<br \/>\n  storm<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">Sat Sep 12, 2 PM<\/td>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">17.7N<br \/>\n  129.7W<\/td>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">65 mph<\/td>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">Tropical<br \/>\n  storm<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">Sun Sep 13, 2 AM<\/td>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">18.1N<br \/>\n  131.6W<\/td>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">65 mph<\/td>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">Tropical<br \/>\n  storm<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">Sun Sep 13, 2 PM<\/td>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">18.4N<br \/>\n  133.7W<\/td>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">60 mph<\/td>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">Tropical<br \/>\n  storm<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">Mon Sep 14, 2 AM<\/td>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">18.6N<br \/>\n  136.0W<\/td>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">50 mph<\/td>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">Tropical<br \/>\n  storm<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">Mon Sep 14, 2 PM<\/td>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">18.7N<br \/>\n  138.5W<\/td>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">45 mph<\/td>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">Tropical<br \/>\n  storm<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">Tue Sep 15, 2 AM<\/td>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">18.6N<br \/>\n  141.1W<\/td>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">40 mph<\/td>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">Tropical<br \/>\n  storm<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">Wed Sep 16, 2 AM<\/td>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">17.7N<br \/>\n  146.3W<\/td>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">35 mph<\/td>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">Post-tropical<br \/>\n  remnant low<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">Thu Sep 17, 2 AM<\/td>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">15.9N<br \/>\n  151.7W<\/td>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">30 mph<\/td>\n<td style=\"padding:8px;border:1px solid #d8dde3;\">Post-tropical<br \/>\n  remnant low<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<p>Uncertainty grows with time. NHC says its track errors have averaged near 100 nautical miles (about 115 miles) on day 4 and 125 nautical<br \/>\n  miles (about 145 miles) on day 5, with intensity errors near 15 knots (about 17 mph) each day.<\/p>\n<p>No watches or warnings are in effect because tropical-storm-force winds are not forecast to reach any land during the five-day forecast. A<br \/>\n  tropical storm watch means tropical storm conditions are possible within 48 hours, and a warning means they are expected within 36 hours.<br \/>\n  The last forecast point with tropical-storm-force winds, 2 a.m. HST Tuesday, is about 915 miles east of Hilo.<\/p>\n<h2>Meteorologist&#8217;s take<\/h2>\n<p>The NHC discussion is plain about why Norbert has not strengthened much. The storm sits over warm ocean water, but marginal moisture in<br \/>\n  the low to mid levels and southerly vertical wind shear (winds changing speed or direction with height, which tilts a storm and tears at its<br \/>\n  thunderstorms) have held it in check. Only two guidance aids, the HFIP HCCA consensus and Google DeepMind WeatherNext 2 (GDMI), show any<br \/>\n  short-term strengthening.<\/p>\n<p>On satellite, NHC describes Norbert as &#8220;an amorphous blob of deep convection&#8221; bursting on and off, and a microwave pass placed the surface<br \/>\n  center near the southern edge of that thunderstorm mass. A center sitting on the upwind edge of its convection is the classic signature of<br \/>\n  shear, and it matches the reasoning in the discussion.<\/p>\n<p>The northward model shift is the bigger story. It places Norbert&#8217;s future path in increasingly unfavorable environmental conditions, which<br \/>\n  is why NHC lowered its intensity forecast beyond 24 hours.<\/p>\n<p>A post-tropical remnant low is a circulation that no longer has the organized thunderstorm activity required of a tropical cyclone, with<br \/>\n  sustained winds below 39 mph. Remnant lows can drift for days, but NHC no longer classifies them as tropical cyclones.<\/p>\n<p>For Hawaii, the useful reference point is the day 5 position: a 30 mph remnant low about 345 miles southeast of Hilo, at a range where<br \/>\n  NHC&#8217;s average track error is about 145 miles. The islands had a Hurricane Warning for Kauai County from <a \n  href=\"https:\/\/ialert.com\/blog\/news-events\/hawaii-hurricane-lowell-sep-7-2026\/\">Hurricane Lowell<\/a> less than a week ago, so the attention is<br \/>\n  understandable. Tropical Storm Norbert is a different setup: a weakening storm steered west by a ridge to its north, with no forecast turn<br \/>\n  toward the islands.<\/p>\n<h2>How to stay safe while Tropical Storm Norbert is over open water<\/h2>\n<p>With no hazards affecting land, no protective action is needed on any coastline right now. For Hawaii residents, the right response is<br \/>\n  watching each new advisory, not preparation.<\/p>\n<p>Mariners have a real reason to pay attention. The NHC forecast advisory shows seas of 4 meters (13 feet) extending up to 150 nautical<br \/>\n  miles (about 175 miles) from the center in the northeast and northwest quadrants, and NHC requested 3-hourly ship reports within 300 miles of<br \/>\n  the storm. Vessels crossing this part of the Pacific should route well clear of the northern half of the circulation.<\/p>\n<p>You can follow Tropical Storm Norbert on the <a href=\"https:\/\/ialert.com\/hurricanes.php\">iAlert hurricane tracker<\/a> and check <a \n  href=\"https:\/\/ialert.com\/analysis.php#alerts\">active weather alerts<\/a> and your <a href=\"https:\/\/ialert.com\/forecast.php\">local weather<br \/>\n  forecast<\/a> as each advisory publishes. Complete advisories arrive at 5:00 and 11:00, a.m. and p.m. HST. The next one is due at 11:00 a.m.<br \/>\n  HST Saturday.<\/p>\n<p>For now, Tropical Storm Norbert is a mid-ocean system with 60 mph winds, no coastal watches or warnings, and a forecast that weakens it to<br \/>\n  a remnant low by early Wednesday. Treat it as a tracking item, not a threat.<\/p>\n<h2>Tropical Storm Norbert FAQ<\/h2>\n<h3>Is Tropical Storm Norbert a threat to Hawaii?<\/h3>\n<p>Not in the current forecast. No watches or warnings are in effect, and NHC lists no hazards affecting land. The center was about 1,760<br \/>\n  miles east of Hilo at 5:00 a.m. HST Saturday, and the final forecast point is a 30 mph remnant low about 345 miles southeast of Hilo early<br \/>\n  Thursday.<\/p>\n<h3>How strong is Tropical Storm Norbert?<\/h3>\n<p>Maximum sustained winds are near 60 mph with higher gusts, and the minimum central pressure is 999 mb. NHC forecasts a peak of 65 mph<br \/>\n  through early Sunday.<\/p>\n<h3>Where is Tropical Storm Norbert headed?<\/h3>\n<p>Norbert is moving west-northwest at 10 mph, and a turn toward the west is forecast on Sunday. It is forecast to cross 140\u00b0W into the<br \/>\n  Central Pacific basin late Monday or early Tuesday, HST.<\/p>\n<h3>When will Tropical Storm Norbert weaken?<\/h3>\n<p>Gradual weakening is expected to begin early next week. The NHC forecast table shows Norbert as a post-tropical remnant low by 2 a.m. HST<br \/>\n  Wednesday, September 16.<\/p>\n<p><strong>Sources:<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/www.nhc.noaa.gov\/archive\/2026\/ep14\/ep142026.public.012.shtml\" target=\"_blank\" rel=\"noopener\">NWS National Hurricane Center, Tropical Storm Norbert\n<p><strong>Sources:<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/www.nhc.noaa.gov\/archive\/2026\/ep14\/ep142026.public.012.shtml\" target=\"_blank\" rel=\"noopener\">NWS National Hurricane Center, Tropical Storm Norbert<br \/>\n  Public Advisory Number 12, 5:00 AM HST September 12, 2026<\/a><\/li>\n<li><a href=\"https:\/\/www.nhc.noaa.gov\/archive\/2026\/ep14\/ep142026.discus.012.shtml\" target=\"_blank\" rel=\"noopener\">NWS National Hurricane Center, Tropical Storm Norbert<br \/>\n  Forecast Discussion Number 12, 5:00 AM HST September 12, 2026<\/a><\/li>\n<li><a href=\"https:\/\/www.nhc.noaa.gov\/archive\/2026\/ep14\/ep142026.fstadv.012.shtml\" target=\"_blank\" rel=\"noopener\">NWS National Hurricane Center, Tropical Storm Norbert<br \/>\n  Forecast\/Advisory Number 12, 1500 UTC September 12, 2026<\/a><\/li>\n<li><a href=\"https:\/\/www.nhc.noaa.gov\/archive\/2026\/NORBERT.shtml\" target=\"_blank\" rel=\"noopener\">NWS National Hurricane Center, Tropical Storm Norbert advisory<br \/>\n  archive<\/a><\/li>\n<\/ul>\n<div style=\"background: #000000; padding: 20px 24px; margin: 20px 0; border-radius: 4px;\">\n<p style=\"color: #ffffff; font-size: 16px; font-weight: bold; margin: 0 0 6px 0;\">Get Severe Weather Alerts for Your Location<\/p>\n<p style=\"color: rgba(255,255,255,0.9); margin: 0 0 14px 0;\">When any NWS watch, warning, or advisory is issued for your area, iAlert sends<br \/>\n  you an immediate notification by email, text message, or phone call, 24 hours a day, 7 days a week.<\/p>\n<p>  <a href=\"https:\/\/ialert.com\/services\/severe-weather-alerts.php\" style=\"background: #C41226; color: #ffffff; padding: 10px 22px; \n  text-decoration: none; border-radius: 3px; font-weight: bold; display: inline-block;\">Sign Up for Severe Weather Alerts &rarr;<\/a>\n  <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Tropical Storm Norbert holds 60 mph winds over the open East Pacific, moving west-northwest with no coastal watches or warnings in effect.<span class=\"more\"> <a href=\"https:\/\/ialert.com\/blog\/news-events\/tropical-storm-norbert-sep-12-2026\/\">Read More&#8230;<\/a><\/span><\/p>\n","protected":false},"author":6,"featured_media":5666,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"","rank_math_focus_keyword":"Tropical Storm Norbert","rank_math_title":"Tropical Storm Norbert: 60 mph Winds, No Hawaii Warnings","rank_math_description":"Tropical Storm Norbert holds 60 mph winds 1,760 miles east of Hilo, Hawaii, moving west-northwest with no coastal watches or warnings in effect."},"categories":[719],"tags":[151],"class_list":["post-5664","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news-events","tag-tropical-storm"],"acf":[],"_links":{"self":[{"href":"https:\/\/ialert.com\/blog\/wp-json\/wp\/v2\/posts\/5664","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ialert.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ialert.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ialert.com\/blog\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/ialert.com\/blog\/wp-json\/wp\/v2\/comments?post=5664"}],"version-history":[{"count":6,"href":"https:\/\/ialert.com\/blog\/wp-json\/wp\/v2\/posts\/5664\/revisions"}],"predecessor-version":[{"id":5671,"href":"https:\/\/ialert.com\/blog\/wp-json\/wp\/v2\/posts\/5664\/revisions\/5671"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ialert.com\/blog\/wp-json\/wp\/v2\/media\/5666"}],"wp:attachment":[{"href":"https:\/\/ialert.com\/blog\/wp-json\/wp\/v2\/media?parent=5664"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ialert.com\/blog\/wp-json\/wp\/v2\/categories?post=5664"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ialert.com\/blog\/wp-json\/wp\/v2\/tags?post=5664"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}