Alerts from NWS Honolulu HI (UNOFFICIAL)
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hfo.nws-bot.us
Alerts from NWS Honolulu HI (UNOFFICIAL)
@hfo.nws-bot.us
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Unofficial bot sharing alerts from NWS Honolulu HI.

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High Surf Advisory issued November 27 at 3:10PM HST until November 28 at 12:00PM HST by NWS Honolulu HI
Additional Details Here.
...HIGH SURF ADVISORY REMAINS IN EFFECT FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU AND MOLOKAI AND NORTH FACING SHORES OF MAUI... .A moderate size, long period northwest swell that peaked this morning has lifted surf to High Surf Advisory heights along the north and west-facing shores of Niihau, Kauai, Oahu and Molokai and the north-facing shores of Maui. A quick hitting reinforcing northwest swell will arrive early Friday morning and this will help maintain advisory level surf through Friday morning. North and west-facing shore surf should significantly drop Friday afternoon and evening. * WHAT...Large surf between 15 to 20 feet along many north facing shores, 10 to 12 feet along many west facing shores. * WHERE...The north and west facing shores of Niihau, Kauai, Oahu, and Molokai and north facing shores of Maui. * WHEN...Until noon HST Friday. * IMPACTS...Moderate. Strong breaking waves and strong currents will make swimming dangerous.
November 28, 2025 at 1:15 AM
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High Surf Advisory issued November 27 at 7:40AM HST until November 28 at 4:00AM HST by NWS Honolulu HI
Additional Details Here.
...HIGH SURF ADVISORY REMAINS IN EFFECT FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU AND MOLOKAI AND NORTH FACING SHORES OF MAUI... .A moderate size, long period northwest swell is peaking this morning. This swell will lift surf to high end High Surf Advisory heights this morning along the north and west-facing shores of Niihau, Kauai, Oahu and Molokai and the north-facing shores of Maui. A reinforcing northwest swell will arrive early Friday morning and maintain advisory level surf through Friday morning. This advisory may need to be extended into late Friday morning. North and west-facing shore surf should significantly drop tomorrow afternoon and evening. * WHAT...Large surf between 20 to 24 feet along many north facing shores, 10 to 14 feet along many west facing shores. * WHERE...The north and west facing shores of Niihau, Kauai, Oahu, and Molokai and north facing shores of Maui. * WHEN...Until 4 AM HST Friday. * IMPACTS...Moderate. Strong breaking waves and strong currents will make swimming dangerous.
November 27, 2025 at 5:45 PM
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High Surf Advisory issued November 27 at 3:01AM HST until November 28 at 4:00AM HST by NWS Honolulu HI
Additional Details Here.
...HIGH SURF ADVISORY REMAINS IN EFFECT FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU AND MOLOKAI AND NORTH FACING SHORES OF MAUI... .The current large long-period northwest swell will peak this evening then gradually decline over the next few days. A reinforcing northwest to north-northwest swell generated by a compact low passing north of the islands today should arrive Thursday night and could help maintain advisory level surf through parts of the day Friday and may need to be extended. * WHAT...Large breaking waves of up to 18 to 22 feet along north facing shores and 12 to 16 feet along west facing shores. * WHERE...North and west facing shores of Niihau, Kauai, Oahu, and Molokai and north facing shores of Maui. * WHEN...Until 4 AM HST Friday. * IMPACTS...Moderate. Strong breaking waves and strong currents will make swimming dangerous.
November 27, 2025 at 1:15 PM
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High Surf Advisory issued November 26 at 4:06PM HST until November 28 at 4:00AM HST by NWS Honolulu HI
Additional Details Here.
...HIGH SURF ADVISORY REMAINS IN EFFECT FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU AND MOLOKAI AND NORTH FACING SHORES OF MAUI... .The current large long-period northwest swell will peak this evening then gradually decline over the next few days. A reinforcing northwest to north-northwest swell generated by a compact low passing north of the islands today should arrive Thursday night and could help maintain advisory level surf through parts of the day Friday and may need to be extended. * WHAT...Large breaking waves of up to 18 to 22 feet along north facing shores and 12 to 16 feet along west facing shores.. * WHERE...North and west facing shores of Niihau, Kauai, Oahu, and Molokai and north facing shores of Maui. * WHEN...Until 4 AM HST Friday. * IMPACTS...Moderate. Strong breaking waves and strong currents will make swimming dangerous.
November 27, 2025 at 2:15 AM
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High Surf Advisory issued November 26 at 3:33AM HST until November 28 at 4:00AM HST by NWS Honolulu HI
Additional Details Here.
...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 6 AM THIS MORNING TO 4 AM HST FRIDAY FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU AND MOLOKAI AND NORTH FACING SHORES OF MAUI... .A moderate to large, long-period, northwest (320-340 degree) swell will quickly fill in this morning and peak tonight into Thursday morning, then slowly ease. This swell is expected to bring high surf to exposed north and west facing beaches through at least early Friday morning. * WHAT...Surf rising to 15 to 20 feet along north facing shores and 10 to 15 feet along west facing shores. * WHERE...North and west facing shores of Niihau, Kauai, Oahu, and Molokai and north facing shores of Maui. * WHEN...From 6 AM this morning to 4 AM HST Friday. * IMPACTS...Moderate. Strong breaking waves and strong currents will make swimming dangerous.
November 26, 2025 at 1:45 PM
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High Surf Advisory issued November 25 at 3:20PM HST until November 28 at 4:00AM HST by NWS Honolulu HI
Additional Details Here.
...HIGH SURF ADVISORY FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU AND MOLOKAI AND NORTH FACING SHORES OF MAUI... .A large long-period northwest to north-northwest (320-330 degree) swell will quickly fill in Wednesday morning and peak Wednesday night into Thursday morning. * WHAT...Surf rising to 15 to 20 feet along north facing shores and 10 to 15 feet along west facing shores. * WHERE...North and west facing shores of Niihau, Kauai, Oahu, and Molokai and north facing shores of Maui. * WHEN...From 6 AM Wednesday to 4 AM HST Friday. * IMPACTS...Moderate. Strong breaking waves and strong currents will make swimming dangerous.
November 26, 2025 at 1:30 AM
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High Surf Advisory issued November 23 at 3:38AM HST until November 23 at 6:00PM HST by NWS Honolulu HI
Additional Details Here.
...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST THIS EVENING FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU MOLOKAI AND NORTH FACING SHORES OF MAUI... .A moderate, long-period, northwest (310 to 320 degrees) swell will bring high surf today, gradually declining as the day progresses. * WHAT...Along north facing shores, surf of 12 to 16 feet this morning, lowering to 10 to 15 feet by this afternoon. Along west facing shores, surf of 9 to 13 feet this morning, lowering to 8 to 12 feet by this afternoon. * WHERE...North and west facing shores of Niihau, Kauai, Oahu, Molokai, and north facing shores of Maui. * WHEN...Until 6 PM HST this evening. * IMPACTS...Moderate. Strong breaking waves and strong currents will make swimming dangerous.
November 23, 2025 at 1:45 PM
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High Surf Advisory issued November 22 at 3:25PM HST until November 23 at 6:00PM HST by NWS Honolulu HI
Additional Details Here.
...HIGH SURF ADVISORY FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU AND MOLOKAI AND NORTH FACING SHORES OF MAUI... .A long-period northwest (310 to 320 degrees) swell will rapidly rise this afternoon and peak during the evening, followed by a gradual decline on Sunday. * WHAT...Along north facing shores, surf peaking at 15 to 20 feet this evening and decreasing to 10 to 15 feet Sunday. Along west facing shores, surf peaking at 10 to 14 feet this evening and decreasing to 8 to 12 feet Sunday. * WHERE...North and west facing shores of Niihau, Kauai, Oahu, and Molokai and north facing shores of Maui. * WHEN...Through 6 PM HST Sunday, with the largest surf occurring through the evening. * IMPACTS...Moderate. Strong breaking waves and strong currents will make swimming dangerous.
November 23, 2025 at 1:30 AM
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High Surf Advisory issued November 22 at 1:48PM HST until November 23 at 6:00PM HST by NWS Honolulu HI
Additional Details Here.
...HIGH SURF ADVISORY FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU AND MOLOKAI AND NORTH FACING SHORES OF MAUI... .A long-period northwest (310 to 320 degrees) swell will rapidly rise this afternoon and peak during the evening, followed by a gradual decline on Sunday. * WHAT...Surf rising to 15 to 20 feet along north facing shores and 10 to 14 feet along west facing shores. * WHERE...North and west facing shores of Niihau, Kauai, Oahu, and Molokai and north facing shores of Maui. * WHEN...Through 6 PM HST Sunday, with the largest surf occurring late this afternoon and in the evening. * IMPACTS...Moderate. Strong breaking waves and strong currents will make swimming dangerous.
November 23, 2025 at 12:00 AM
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Small Craft Advisory issued November 22 at 3:14AM HST until November 22 at 6:00PM HST by NWS Honolulu HI
Additional Details Here.
* WHAT...East winds up to 25 kt. * WHERE...Maalaea Bay, Pailolo Channel, Alenuihaha Channel, Big Island Leeward Waters and Big Island Southeast Waters. * WHEN...Until 6 PM HST this evening. * IMPACTS...Conditions will be hazardous to small craft.
November 22, 2025 at 1:30 PM
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High Surf Advisory issued November 22 at 3:14AM HST until November 23 at 6:00PM HST by NWS Honolulu HI
Additional Details Here.
...HIGH SURF ADVISORY FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU AND MOLOKAI AND NORTH FACING SHORES OF MAUI... .A rising moderate long-period northwest (320 degrees) swell will gradually rise this afternoon and peak tonight into Sunday. * WHAT...Surf peaking at 10 to 15 feet along north facing shores, and 8 to 12 feet along west facing shores. * WHERE...North and west facing shores of Niihau, Kauai, Oahu, and Molokai and north facing shores of Maui.. * WHEN...From noon today to 6 PM HST Sunday. * IMPACTS...Moderate. Strong breaking waves and strong currents will make swimming dangerous.
November 22, 2025 at 1:30 PM
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Small Craft Advisory issued November 21 at 5:08PM HST until November 22 at 6:00AM HST by NWS Honolulu HI
Additional Details Here.
* WHAT...East winds 15 to 25 kt. * WHERE...Maalaea Bay, Pailolo Channel, Alenuihaha Channel, Big Island Leeward Waters and Big Island Southeast Waters. * WHEN...Until 6 AM HST Saturday. * IMPACTS...Conditions will be hazardous to small craft.
November 22, 2025 at 3:15 AM
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Small Craft Advisory issued November 21 at 3:09AM HST until November 22 at 6:00AM HST by NWS Honolulu HI
Additional Details Here.
* WHAT...East winds up to 25 kt. * WHERE...Maalaea Bay, Pailolo Channel, Alenuihaha Channel, Big Island Leeward Waters and Big Island Southeast Waters. * WHEN...Until 6 AM HST Saturday. * IMPACTS...Conditions will be hazardous to small craft.
November 21, 2025 at 1:15 PM
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Small Craft Advisory issued November 20 at 3:18PM HST until November 21 at 6:00AM HST by NWS Honolulu HI
Additional Details Here.
* WHAT...East winds to 25 kt. * WHERE...Oahu Windward Waters, Kaiwi Channel, Maui County Windward Waters and Big Island Windward Waters. * WHEN...Until 6 AM HST Friday. * IMPACTS...Conditions will be hazardous to small craft. * WHAT...East winds 15 to 25 kt. * WHERE...Maalaea Bay, Pailolo Channel, Alenuihaha Channel, Big Island Leeward Waters and Big Island Southeast Waters. * WHEN...Until 6 PM HST Friday. * IMPACTS...Conditions will be hazardous to small craft.
November 21, 2025 at 1:30 AM
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High Surf Advisory issued November 20 at 11:41AM HST until November 20 at 12:00PM HST by NWS Honolulu HI
Additional Details Here.
...HIGH SURF ADVISORY WILL EXPIRE AT NOON HST TODAY... .Surf has fallen below advisory criteria along north and west facing shores. The northwest swell has peaked and will slowly decline through the remainder of today.
November 20, 2025 at 9:45 PM
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High Surf Advisory issued November 20 at 3:17AM HST until November 20 at 12:00PM HST by NWS Honolulu HI
Additional Details Here.
...HIGH SURF ADVISORY FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU AND MOLOKAI... * WHAT...Surf 10 to 15 feet along north facing shores, except for 12 to 16 feet along north facing shores of Kauai and Niihau. Surf 8 to 12 feet along west facing shores. * WHERE...North and west facing shores of Niihau, Kauai, Oahu, and Molokai. * WHEN...Until noon HST today. * IMPACTS...Moderate. Strong breaking waves and strong currents will make swimming dangerous.
November 20, 2025 at 1:30 PM
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Small Craft Advisory issued November 20 at 3:16AM HST until November 20 at 6:00PM HST by NWS Honolulu HI
Additional Details Here.
* WHAT...East winds 20 to 30 kt and seas 8 to 13 feet expected. * WHERE...All coastal waters. * WHEN...Until 6 PM HST this evening. * IMPACTS...Conditions will be hazardous to small craft.
November 20, 2025 at 1:30 PM
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Winter Weather Advisory issued November 20 at 3:13AM HST until November 20 at 12:00PM HST by NWS Honolulu HI
Additional Details Here.
...WINTER WEATHER ADVISORY FOR THE BIG ISLAND SUMMITS... .Lingering deep tropical moisture and near freezing temperatures keep a wintery mix at the summits early this morning before warming up after sunrise. * WHAT...Light snow transiting to rain. * WHERE...Big Island Summits. * WHEN...Until noon HST today. * IMPACTS...Plan on slippery road conditions. * ADDITIONAL DETAILS...Light snow will transition to rain as temperature begin to warm this morning. Conditions should improve after sunrise.
November 20, 2025 at 1:15 PM
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Winter Weather Advisory issued November 19 at 3:17PM HST until November 20 at 12:00PM HST by NWS Honolulu HI
Additional Details Here.
...WINTER WEATHER ADVISORY FOR THE BIG ISLAND SUMMITS... .Deep tropical moisture will linger over the Big Island trough Thursday and bring a wintry mix to the summits tonight. * WHAT...Light snow and freezing rain showers. Additional snow accumulations up to one inch. Light ice accumulations. * WHERE...Big Island Summits. * WHEN...Until noon HST Thursday. * IMPACTS...Plan on slippery road conditions. * ADDITIONAL DETAILS...Rain showers will transition to a wintry mix overnight as temperatures fall below freezing. Conditions should improve by late Thursday morning.
November 20, 2025 at 1:30 AM
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High Surf Advisory issued November 19 at 3:23PM HST until November 20 at 12:00PM HST by NWS Honolulu HI
Additional Details Here.
...HIGH SURF ADVISORY FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU AND MOLOKAI... * WHAT...Surf 10 to 15 feet along north facing shores, except for 12 to 16 feet along north facing shores of Kauai and Niihau. Surf 8 to 12 feet along west facing shores. * WHERE...North and west facing shores of Niihau, Kauai, Oahu, and Molokai. * WHEN...Until noon HST Thursday. * IMPACTS...Moderate. Strong breaking waves and strong currents will make swimming dangerous.
November 20, 2025 at 1:30 AM
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Winter Weather Advisory issued November 19 at 8:45AM HST until November 20 at 12:00PM HST by NWS Honolulu HI
Additional Details Here.
...WINTER WEATHER ADVISORY FOR THE BIG ISLAND SUMMITS... .Deep tropical moisture will linger over the Big Island trough Thursday and bring a wintry mix to the summits tonight. * WHAT...Light snow and freezing rain showers. Additional snow accumulations up to one inch. Light ice accumulations. * WHERE...Big Island Summits. * WHEN...Until noon HST Thursday. * IMPACTS...Plan on slippery road conditions. * ADDITIONAL DETAILS...Rain showers today will transition to a wintry mix overnight as temperatures fall below freezing. Conditions should improve by late Tursday morning.
November 19, 2025 at 7:00 PM
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High Surf Advisory issued November 19 at 8:40AM HST until November 20 at 12:00PM HST by NWS Honolulu HI
Additional Details Here.
...HIGH SURF ADVISORY FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU AND MOLOKAI... * WHAT...Surf 10 to 15 feet along north facing shores, except for 14 to 18 feet along north facing shores of Kauai and Niihau. Surf 8 to 12 feet along west facing shores. * WHERE...North and west facing shores of Niihau, Kauai, Oahu, and Molokai. * WHEN...Until noon HST Thursday. * IMPACTS...Moderate. Strong breaking waves and strong currents will make swimming dangerous.
November 19, 2025 at 6:45 PM
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Winter Weather Advisory issued November 19 at 4:49AM HST until November 19 at 6:00PM HST by NWS Honolulu HI
Additional Details Here.
...WINTER WEATHER ADVISORY FOR THE BIG ISLAND SUMMITS... .Deep tropical moisture will continue to move over the eastern end of the state through this afternoon and bring a mix of rain and snow showers to the Big Island summits. * WHAT...Additional snow accumulations around 1 to 2 inches. Snow may mix with rain at times. * WHERE...Big Island Summits. * WHEN...Until 6 PM HST this evening. * IMPACTS...Plan on slippery road conditions.
November 19, 2025 at 3:00 PM
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Small Craft Advisory issued November 19 at 3:12AM HST until November 20 at 6:00PM HST by NWS Honolulu HI
Additional Details Here.
* WHAT...East winds 15 to 30 kt and seas 7 to 10 feet expected. * WHERE...Maalaea Bay, Pailolo Channel, Alenuihaha Channel, Big Island Leeward Waters and Big Island Southeast Waters. * WHEN...Until 6 PM HST Thursday. * IMPACTS...Conditions will be hazardous to small craft. * WHAT...East winds 15 to 25 kt and seas 8 to 13 feet expected. * WHERE...Kauai Northwest Waters, Kauai Windward Waters, Kauai Leeward Waters, Kauai Channel, Oahu Windward Waters, Oahu Leeward Waters, Kaiwi Channel, Maui County Windward Waters, Maui County Leeward Waters and Big Island Windward Waters. * WHEN...From 6 AM Wednesday to 6 PM HST Thursday. * IMPACTS...Conditions will be hazardous to small craft.
November 19, 2025 at 1:15 PM
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Small Craft Advisory issued November 18 at 3:20PM HST until November 20 at 6:00PM HST by NWS Honolulu HI
Additional Details Here.
* WHAT...East winds 15 to 30 kt and seas 7 to 10 feet expected. * WHERE...Maalaea Bay, Pailolo Channel, Alenuihaha Channel, Big Island Leeward Waters and Big Island Southeast Waters. * WHEN...Until 6 PM HST Thursday. * IMPACTS...Conditions will be hazardous to small craft. * WHAT...East winds 15 to 25 kt and seas 8 to 13 feet expected. * WHERE...Kauai Northwest Waters, Kauai Windward Waters, Kauai Leeward Waters, Kauai Channel, Oahu Windward Waters, Oahu Leeward Waters, Kaiwi Channel, Maui County Windward Waters, Maui County Leeward Waters and Big Island Windward Waters. * WHEN...From 6 AM Wednesday to 6 PM HST Thursday. * IMPACTS...Conditions will be hazardous to small craft.
November 19, 2025 at 1:30 AM