IEM VTEC Product Browser
This application allows easy navigation of National Weather Service issued products with Valid Time Event Coding (VTEC).
13 Nov 2024 Update: The tool was updated to use non-hash link style URLs. A shim is in place to translate the old URLs to the new ones, so nothing should be broken (famous last words). This was done to allow the HTML5 History API to provide a better user experience.
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2025 [PHFO] HONOLULU Small Craft (SC) Advisory (Y) Number 21
Listing of Counties/Parishes/Zones Included in Product
RADAR Composite at Issuance Time
Storm Based Warning History
407 WHHW70 PHFO 310111 MWWHFO URGENT - MARINE WEATHER MESSAGE National Weather Service Honolulu HI 311 PM HST Sun Mar 30 2025 PHZ110-112-122-123-311415- /O.NEW.PHFO.SC.Y.0021.250331T2200Z-250402T0400Z/ Kauai Northwest Waters-Kauai Leeward Waters- Big Island Windward Waters-Big Island Leeward Waters- 311 PM HST Sun Mar 30 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM NOON MONDAY TO 6 PM HST TUESDAY... * WHAT...Southeast to south winds 15 to 25 kt with higher gusts. * WHERE...Kauai Northwest Waters, Kauai Leeward Waters, Big Island Windward Waters and Big Island Leeward Waters. * WHEN...From noon Monday to 6 PM HST Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in these conditions. && $$
619 WHHW70 PHFO 311300 MWWHFO URGENT - MARINE WEATHER MESSAGE National Weather Service Honolulu HI 300 AM HST Mon Mar 31 2025 PHZ111-010400- /O.EXA.PHFO.SC.Y.0021.250331T2200Z-250402T0400Z/ Kauai Windward Waters- 300 AM HST Mon Mar 31 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM NOON TODAY TO 6 PM HST TUESDAY... * WHAT...South winds 15 to 25 kt. * WHERE...Kauai Windward Waters. * WHEN...From noon today to 6 PM HST Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in these conditions. && $$ PHZ110-112-122-123-010400- /O.CON.PHFO.SC.Y.0021.250331T2200Z-250402T0400Z/ Kauai Northwest Waters-Kauai Leeward Waters- Big Island Windward Waters-Big Island Leeward Waters- 300 AM HST Mon Mar 31 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 6 PM HST TUESDAY... * WHAT...Southeast to south winds 15 to 25 kt. * WHERE...Kauai Northwest Waters, Kauai Leeward Waters, Big Island Windward Waters and Big Island Leeward Waters. * WHEN...From noon today to 6 PM HST Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in these conditions. && $$
130 WHHW70 PHFO 010142 MWWHFO URGENT - MARINE WEATHER MESSAGE National Weather Service Honolulu HI 342 PM HST Mon Mar 31 2025 PHZ110>112-122-123-011445- /O.CON.PHFO.SC.Y.0021.000000T0000Z-250402T0400Z/ Kauai Northwest Waters-Kauai Windward Waters-Kauai Leeward Waters- Big Island Windward Waters-Big Island Leeward Waters- 342 PM HST Mon Mar 31 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST TUESDAY... * WHAT...Southeast to south winds 15 to 25 kt. * WHERE...Kauai Northwest Waters, Kauai Windward Waters, Kauai Leeward Waters, Big Island Windward Waters and Big Island Leeward Waters. * WHEN...Until 6 PM HST Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in these conditions. && $$
764 WHHW70 PHFO 011335 MWWHFO URGENT - MARINE WEATHER MESSAGE National Weather Service Honolulu HI 335 AM HST Tue Apr 1 2025 PHZ122-123-020245- /O.EXT.PHFO.SC.Y.0021.000000T0000Z-250402T1600Z/ Big Island Windward Waters-Big Island Leeward Waters- 335 AM HST Tue Apr 1 2025 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 AM HST WEDNESDAY... * WHAT...Southeast winds 15 to 25 kt. * WHERE...Big Island Windward Waters and Big Island Leeward Waters. * WHEN...Until 6 AM HST Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in these conditions. && $$ PHZ110>112-020245- /O.CON.PHFO.SC.Y.0021.000000T0000Z-250402T0400Z/ Kauai Northwest Waters-Kauai Windward Waters-Kauai Leeward Waters- 335 AM HST Tue Apr 1 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST THIS EVENING... * WHAT...South winds 15 to 25 kt. * WHERE...Kauai Northwest Waters, Kauai Windward Waters and Kauai Leeward Waters. * WHEN...Until 6 PM HST this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in these conditions. && $$
361 WHHW70 PHFO 020111 MWWHFO URGENT - MARINE WEATHER MESSAGE National Weather Service Honolulu HI 311 PM HST Tue Apr 1 2025 PHZ110>112-020215- /O.CAN.PHFO.SC.Y.0021.000000T0000Z-250402T0400Z/ Kauai Northwest Waters-Kauai Windward Waters-Kauai Leeward Waters- 311 PM HST Tue Apr 1 2025 ...SMALL CRAFT ADVISORY IS CANCELLED... Winds have decreased and are expected to remain below advisory levels in this area. $$ PHZ122-123-021415- /O.CON.PHFO.SC.Y.0021.000000T0000Z-250402T1600Z/ Big Island Windward Waters-Big Island Leeward Waters- 311 PM HST Tue Apr 1 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM HST WEDNESDAY... * WHAT...Southeast winds 15 to 25 kt. * WHERE...Big Island Windward Waters and Big Island Leeward Waters. * WHEN...Until 6 AM HST Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in these conditions. && $$
413 WHHW70 PHFO 021325 MWWHFO URGENT - MARINE WEATHER MESSAGE National Weather Service Honolulu HI 325 AM HST Wed Apr 2 2025 PHZ122-123-030230- /O.EXT.PHFO.SC.Y.0021.000000T0000Z-250403T0400Z/ Big Island Windward Waters-Big Island Leeward Waters- 325 AM HST Wed Apr 2 2025 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 PM HST THIS EVENING... * WHAT...Southeast winds 15 to 25 kt. * WHERE...Big Island Windward Waters and Big Island Leeward Waters. * WHEN...Until 6 PM HST this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in these conditions. && $$
580 WHHW70 PHFO 030140 MWWHFO URGENT - MARINE WEATHER MESSAGE National Weather Service Honolulu HI 340 PM HST Wed Apr 2 2025 PHZ122-123-030245- /O.CAN.PHFO.SC.Y.0021.000000T0000Z-250403T0400Z/ Big Island Windward Waters-Big Island Leeward Waters- 340 PM HST Wed Apr 2 2025 ...SMALL CRAFT ADVISORY IS CANCELLED... Winds have decreased and are expected to remain below advisory levels across waters surrounding the Big Island of Hawaii. $$
Permalink to 202503310111-PHFO-WHHW70-MWWHFO
407 WHHW70 PHFO 310111 MWWHFO URGENT - MARINE WEATHER MESSAGE National Weather Service Honolulu HI 311 PM HST Sun Mar 30 2025 PHZ110-112-122-123-311415- /O.NEW.PHFO.SC.Y.0021.250331T2200Z-250402T0400Z/ Kauai Northwest Waters-Kauai Leeward Waters- Big Island Windward Waters-Big Island Leeward Waters- 311 PM HST Sun Mar 30 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM NOON MONDAY TO 6 PM HST TUESDAY... * WHAT...Southeast to south winds 15 to 25 kt with higher gusts. * WHERE...Kauai Northwest Waters, Kauai Leeward Waters, Big Island Windward Waters and Big Island Leeward Waters. * WHEN...From noon Monday to 6 PM HST Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in these conditions. && $$
Permalink to 202503311300-PHFO-WHHW70-MWWHFO
619 WHHW70 PHFO 311300 MWWHFO URGENT - MARINE WEATHER MESSAGE National Weather Service Honolulu HI 300 AM HST Mon Mar 31 2025 PHZ111-010400- /O.EXA.PHFO.SC.Y.0021.250331T2200Z-250402T0400Z/ Kauai Windward Waters- 300 AM HST Mon Mar 31 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM NOON TODAY TO 6 PM HST TUESDAY... * WHAT...South winds 15 to 25 kt. * WHERE...Kauai Windward Waters. * WHEN...From noon today to 6 PM HST Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in these conditions. && $$ PHZ110-112-122-123-010400- /O.CON.PHFO.SC.Y.0021.250331T2200Z-250402T0400Z/ Kauai Northwest Waters-Kauai Leeward Waters- Big Island Windward Waters-Big Island Leeward Waters- 300 AM HST Mon Mar 31 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 6 PM HST TUESDAY... * WHAT...Southeast to south winds 15 to 25 kt. * WHERE...Kauai Northwest Waters, Kauai Leeward Waters, Big Island Windward Waters and Big Island Leeward Waters. * WHEN...From noon today to 6 PM HST Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in these conditions. && $$
Permalink to 202504010142-PHFO-WHHW70-MWWHFO
130 WHHW70 PHFO 010142 MWWHFO URGENT - MARINE WEATHER MESSAGE National Weather Service Honolulu HI 342 PM HST Mon Mar 31 2025 PHZ110>112-122-123-011445- /O.CON.PHFO.SC.Y.0021.000000T0000Z-250402T0400Z/ Kauai Northwest Waters-Kauai Windward Waters-Kauai Leeward Waters- Big Island Windward Waters-Big Island Leeward Waters- 342 PM HST Mon Mar 31 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST TUESDAY... * WHAT...Southeast to south winds 15 to 25 kt. * WHERE...Kauai Northwest Waters, Kauai Windward Waters, Kauai Leeward Waters, Big Island Windward Waters and Big Island Leeward Waters. * WHEN...Until 6 PM HST Tuesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in these conditions. && $$
Permalink to 202504011335-PHFO-WHHW70-MWWHFO
764 WHHW70 PHFO 011335 MWWHFO URGENT - MARINE WEATHER MESSAGE National Weather Service Honolulu HI 335 AM HST Tue Apr 1 2025 PHZ122-123-020245- /O.EXT.PHFO.SC.Y.0021.000000T0000Z-250402T1600Z/ Big Island Windward Waters-Big Island Leeward Waters- 335 AM HST Tue Apr 1 2025 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 AM HST WEDNESDAY... * WHAT...Southeast winds 15 to 25 kt. * WHERE...Big Island Windward Waters and Big Island Leeward Waters. * WHEN...Until 6 AM HST Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in these conditions. && $$ PHZ110>112-020245- /O.CON.PHFO.SC.Y.0021.000000T0000Z-250402T0400Z/ Kauai Northwest Waters-Kauai Windward Waters-Kauai Leeward Waters- 335 AM HST Tue Apr 1 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM HST THIS EVENING... * WHAT...South winds 15 to 25 kt. * WHERE...Kauai Northwest Waters, Kauai Windward Waters and Kauai Leeward Waters. * WHEN...Until 6 PM HST this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in these conditions. && $$
Permalink to 202504020111-PHFO-WHHW70-MWWHFO
361 WHHW70 PHFO 020111 MWWHFO URGENT - MARINE WEATHER MESSAGE National Weather Service Honolulu HI 311 PM HST Tue Apr 1 2025 PHZ110>112-020215- /O.CAN.PHFO.SC.Y.0021.000000T0000Z-250402T0400Z/ Kauai Northwest Waters-Kauai Windward Waters-Kauai Leeward Waters- 311 PM HST Tue Apr 1 2025 ...SMALL CRAFT ADVISORY IS CANCELLED... Winds have decreased and are expected to remain below advisory levels in this area. $$ PHZ122-123-021415- /O.CON.PHFO.SC.Y.0021.000000T0000Z-250402T1600Z/ Big Island Windward Waters-Big Island Leeward Waters- 311 PM HST Tue Apr 1 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM HST WEDNESDAY... * WHAT...Southeast winds 15 to 25 kt. * WHERE...Big Island Windward Waters and Big Island Leeward Waters. * WHEN...Until 6 AM HST Wednesday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in these conditions. && $$
Permalink to 202504021325-PHFO-WHHW70-MWWHFO
413 WHHW70 PHFO 021325 MWWHFO URGENT - MARINE WEATHER MESSAGE National Weather Service Honolulu HI 325 AM HST Wed Apr 2 2025 PHZ122-123-030230- /O.EXT.PHFO.SC.Y.0021.000000T0000Z-250403T0400Z/ Big Island Windward Waters-Big Island Leeward Waters- 325 AM HST Wed Apr 2 2025 ...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 PM HST THIS EVENING... * WHAT...Southeast winds 15 to 25 kt. * WHERE...Big Island Windward Waters and Big Island Leeward Waters. * WHEN...Until 6 PM HST this evening. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in these conditions. && $$
Permalink to 202504030140-PHFO-WHHW70-MWWHFO
580 WHHW70 PHFO 030140 MWWHFO URGENT - MARINE WEATHER MESSAGE National Weather Service Honolulu HI 340 PM HST Wed Apr 2 2025 PHZ122-123-030245- /O.CAN.PHFO.SC.Y.0021.000000T0000Z-250403T0400Z/ Big Island Windward Waters-Big Island Leeward Waters- 340 PM HST Wed Apr 2 2025 ...SMALL CRAFT ADVISORY IS CANCELLED... Winds have decreased and are expected to remain below advisory levels across waters surrounding the Big Island of Hawaii. $$
All Storm Reports within Event Political Coverage
Storm Reports within Product Polygon
This table lists other events issued by the selected office for the selected year. Click on the row to select that event.